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Wireless Components
1-Chip Car Radio TUA 4307 Version 2.0 (A5)
Specification September 1999
Revision History: Current Version: 09.99 Previous Version:Specification 11.12.1998 Page (in previous Version) 19 33 35 Page (in current Version) 3-11 5-7 5-10 5-8 Subjects (major changes since last revision)
Capacitor pin 65 removed (redesign related) Pos. 22: Limits changed due to incorrect load condition of the tester, no IC change behaviour (No redesign related) Tests Total audio voltage added (No redesign related) VCO gain values changed (Redesign related)
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TUA 4307
Product Info
Product Info
General Description The TUA 4307 is a one chip car radio Package system consisting of AM/FM receiver, AM-Up/Down conversion, AGC amplifier / demodulator, FM-IF limiter amplifier / demodulator and stereodecoder / noiseblanker. AM/FM-Receiver
s
Features
Only one 2-pin-oscillator for the 1st LO; in AM mode the oscillator frequency is divided FM/AM field strength output combined
s
FM-Mode
s
Integrated AGC generation for PIN Diodes and MOSFETs High input/output 3rd order interceptpoint
s
s
Interference noise detector with integrated high-pass filter (IF level signal or MPX input) Noise blanking at MPX -demodulator outputs- L, R audio is common to AM Mode
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FM-IF Demodulator
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IF counter output with request function pin Station detector with S curve criterion and adjustable fieldstrength threshold (Output combined with AM)
AM Mode
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2nd mixer with 10.25 MHz crystal oscillator or external force mode for mixing frequency Output for AM stereodecoder (CQAM) Station detector with adjustable fieldstrength threshold (Output with FM)
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Stereodecoder
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Adjustment free oscillator with ceramic resonator 912 kHz
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Application
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AM/FM car radio receiver with analog/digital STS (search tuning stop)
Ordering Information
Type TUA 4307
Ordering Code Q66000-S-T-xxxx
Package MQFP-80-1
Wireless Components
Product Info
Specification, September 1999
1
Table of Contents
1 2 2.1 2.2 2.2.1 2.2.2 2.2.3 2.2.4 2.3 2.4 3 3.1 3.2 3.3 3.3.1 3.3.2 3.3.3 3.3.4 3.4 3.5 3.6 3.7 4 4.1 4.2 5 5.1 5.1.1 5.1.2 5.1.3 5.2 5.3 5.4 5.4.1 5.4.2 5.4.3 5.4.4 5.5 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 AM/FM-Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 FM-Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Stereodecoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 AM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Pin Definition and Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Circuit Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 AM/FM-Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 FM-MODE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 Stereodecoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 AM - MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16 Blockdiagram 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17 Blockdiagram 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18 Blockdiagram 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19 Blockdiagram 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Application Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 AC/DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 AM 1st LO ECL divider truthtable . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11 Note 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11 Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12 Diagram D1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12 Diagram D2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13 Diagram D3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14 Diagram D4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15 Test Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
2
Product Description
Contents of this Chapter 2.1 2.2 2.2.1 2.2.2 2.2.3 2.2.4 2.3 2.4 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 AM/FM-Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 FM-Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Stereodecoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 AM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
TUA 4307
Product Description
2.1 Overview
The TUA 4307 is a one chip car radio system consisting of AM/FM receiver, AMUp/Down conversion, AGC amplifier / demodulator, FM-IF limiter amplifier / demodulator and stereodecoder / noiseblanker.
2.2 Features
2.2.1
AM/FM-Receiver
s s s s s
High flexibility with an external preamplifier stage for AM and FM Strictly symmetrical RF parts Separate mixers for AM and FM mode Sym. or asym. mixer inputs Only one 2-pin-oscillator for the 1st LO; in AM mode the oscillator frequency is divided 1st LO with LC-tank circuit 1st LO at 100 MHz range 1st LO decoupled counter output 1st LO decoupled divided counter output Improved low phase noise FM/AM field strength output combined
s s s s s s
2.2.2
FM-Mode
1. FM-Receiver In this mode, the receiverpart is comprised of a mixer, an oscillator, a prestage control and an IF post amplification.
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Integrated AGC generation for PIN Diodes and MOSFETs High level mixer input High input/output 3rd order interceptpoint
Wireless Components
2-2
Specification, September 1999
TUA 4307
Product Description
2. FM-IF Demodulator The FM-IF-demodulator has been developed especially for car radio applications.
s s s s
7stage limiter amplifier Quadrature demodulator IF counter output with request function pin Station detector with S curve criterion and adjustable fieldstrength threshold (Output combined with AM) Field strength output (combined with AM) Soft mute with adjustable mute depth (with full muting typ 80dB) Multipath detector with analog output
s s s
2.2.3
Stereodecoder
This part provides the stereo decoder function and noise blanking for FM car radio applications.
s s s s s s s s s s
Internal reference voltage source Adjustment free oscillator with ceramic resonator 912 kHz Pilot dependent mono/stereo switching with hysteresis Stereo indicator output Analog mono/stereo blend control (stereo noise control, SNC) Pilot canceller (19 kHz) Adjacent channel noise suppression (114 kHz) Mute facility Analog deemphasis control (high cut control, HCC) Interference noise detector with integrated high-pass filter (IF level signal or MPX input) MPX-input low-pass filter Noise blanking at MPX -demodulator outputs- L, R audio is common to AM Mode
s s
Wireless Components
2-3
Specification, September 1999
TUA 4307
Product Description
2.2.4
AM Mode
In this mode, the IC is comprised of a mixer, an oscillator with a divider by 4, 6, 8 or 10, a prestage control, 2nd mixer to convert the 1st IF to the 2nd IF, 2nd local force oscillator ( buffer for external source), automatic gain controlled amplifier and quasisynchronous demodulator. The same oscillator is used in AM and FM mode.
s
2nd mixer with 10.25 MHz crystal oscillator or external force mode for mixing frequency Output for AM IF counter Output for AM stereodecoder (CQAM) Wide range 2nd IF AGC amplifier Quasi synchronous demodulator for AM mode Station detector with adjustable fieldstrength threshold (Output with FM) Fast AM search tuning stop feature HCC for AM
s s s s s s s
2.3 Applications
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AM/FM Car radio receiver with analog/digital STS (search tuning stop)
2.4 Package Outlines
M-QFP-80-1
Wireless Components
2-4
Specification, September 1999
3
Functional Description
Contents of this Chapter 3.1 3.2 3.3 3.3.1 3.3.2 3.3.3 3.3.4 3.4 3.5 3.6 3.7 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Pin Definition and Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Circuit Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 AM/FM-Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 FM-MODE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 Stereodecoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 AM - MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16 Blockdiagram 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17 Blockdiagram 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18 Blockdiagram 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19 Blockdiagram 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
TUA 4307
Functional Description
3.1 Pin Configuration
Ng cap AM/FM
60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 Pil ind out Pil det cap MPX IN Stereo PLL Stereo osc Iref stereo N det in MPX out GND stereo Mute FM Mute depth FM St det out St det cap St det thres FM St det thres AM Dem FM Dem FM +Vif Fieldstr Vref FM 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 1 FM IF count 2 FM IF req 3 MP det in 4 MP det cap 5 MP det out 6
AM seek mode
Pre cap FM 40 39 38 37 36 35 34 33 32 Pre cap AM 1st mix out 1st mix out SEL B SEL A Vref AM GND1 rf GND IF amp +V rf +V if Pre thrs. AM/FM IF amp in IF amp bias IF gain adj I pre FM V pre AM IF amp out IF gain cap GND2 if 2nd mix in 31 30 29 28 27 26 25 24 23 22 2nd mix in
Contr. HCC
Contr. SNC
RF in AM
RF in AM
Div count
RF in FM 2nd LO
TUA 4307
7 AM IF count
8 AM stereo
21 9 10 11 12 13 14 15 16 17 18 19 20 AM IF in AM IF bias AM IF bias AM IF cap FM IF in GND1 if FM IF bias 2nd mix out 2nd mix out 2nd LO
RF in FM
Dir count
AF out R
Nlev cap
AF out L
Vref H/S
Deem R
GND2 rf
Deem L
Vref RF
1st LO
1st LO
Pin_config.wmf
Figure 3-1
Pin Configuration
Wireless Components
3-2
Specification, September 1999
TUA 4307
Functional Description
3.2 Pin Definition and Function
Table 3-1 Pin Definition and Function Pin No. 1 Symbol FM IF count Equivalent I/O-Schematic Function FM IF counter output
2
FM IF req
FM IF counter request
3
MP det in
Auxiliary multipath detector input (in parallel to internal connection)
4
MP det cap
Multipath detector rectifier capacitor
Wireless Components
3-3
Specification, September 1999
TUA 4307
Functional Description
5
MP det out
Analog multipath detector output
6
AM seek mode
AM seek mode switch; AM IF counter on, AMAGC fast and AF-mute
7
AM IF count
AM-IF counter output for search tuning
8
AM stereo
AM-IF out for AM stereo decoder
9 10 11
GND1 IF FM IF bias FM IF in
Ground 1 AM/FM IF FM limiter input bias decoupling capacitor FM limiter input
Wireless Components
3-4
Specification, September 1999
TUA 4307
Functional Description
12 13 14
AM IF bias AM IF in AM IF bias
AM AGC amplifier bias decoupling capacitor AM AGC amplifier input AM AGC amplifier bias decoupling capacitor
2nd mix out
2nd mix out 1.8k 1.8k
3.5 V
17
AM IF cap
2nd mix out
2nd mix out
15 16 20 21
2nd mix out 2nd mix out 2nd mix in 2nd mix in
2nd AM mixer output (open collector) 2nd AM mixer output (open collector) 2nd AM mixer bias decoupling capacitor 2nd AM mixer input
AM AGC amplifier time constant capacitor
18 19
2nd LO 2nd LO
Crystal oscillator input for 2nd mixer Crystal oscillator input for 2nd mixer
Wireless Components
3-5
Specification, September 1999
TUA 4307
Functional Description
20 21 22 23
2nd mix in 2nd mix in GND2 IF IF gain cap
seePIN15/16
2nd AM mixer bias decoupling capacitor 2nd AM mixer input Ground 2 AM/FM IF 10.7 MHz FM IF amplifier gain adjust blocking capacitor
24
IF amp out
10.7 MHz FM IFamplifier output
25
V pre AM
AM prestage AGC buffered voltage output
26
I pre FM
FM prestage AGC current output for PIN diode
Wireless Components
3-6
Specification, September 1999
TUA 4307
Functional Description
27
IF gain adj
10.7 MHz FM IF amplifier DC controlled gain adjust
28 29
IF amp bias IF amp in
10.7 MHz FM IF amplifier operation point 10.7 MHz FM IF amplifier input
30
Pre thrs. AM/ FM
Prestage AGC threshold voltage AM/FM
31 32 33 34 35
+V IF +V RF GND IF GND1 RF Vref AM
Supply voltage IF AMP Supply voltage RF section Ground FM IF AMP Ground 1 RF section Reference voltage AM section (4.8) V
Wireless Components
3-7
Specification, September 1999
TUA 4307
Functional Description
36
SEL A
AM divided counter ratio select A
37
SEL B
AM divided counter ratio select B
38 39
1st mix out 1st mix out
1st mixer output (open collector) 1st mixer output (open collector)
40 41
Pre cap AM Pre cap FM
AM prestage AGC time constant capacitor FM prestage AGC time constant capacitor; output for MOS FET Gate 2
Wireless Components
3-8
Specification, September 1999
TUA 4307
Functional Description
42 43
RF in FM RF in FM
FM 1st mixer symmetrical inputs FM 1st mixer symmetrical inputs
44 45 46
GND2 RF RF in AM RF in AM
GND 2 RF section AM 1st mixer symmetrical inputs
47 48 49
Vref RF 1st LO 1st local AM/FM oscillator circuit
50
Div count
1st local oscillator divided by 4, 6, 8 or 10 counter output (disabled in FM mode)
Wireless Components
3-9
Specification, September 1999
TUA 4307
Functional Description
51
Dir count
1st local oscillator counter output
52
Ng cap AM/FM
Timing capacitor for Noisedetector monoflop (gate time) AM/FM mode control; low voltage activates AM section and disables stereodecoder VCO, Phase detector, Pilot detector, SNC and FM section
53
Nlev cap
Hold capacitor for Noise detector average level low voltage applied mutes the stereo decoder outputs
54 55 56 57
Deem R Deem L AF out L AF out R
HCC timing / hold capacitor, deemphasis righ HCC timing / hold capacitor, deemphasis left AF output left AF output right
58 59 60
Vref H/S Contr. HCC Contr. SNC
Reference voltage SNC / HCC Control voltage HCC (high cut control) Control voltage SNC (stereo noise control), external decreasing of stereo separation possible
Wireless Components
3 - 10
Specification, September 1999
TUA 4307
Functional Description
61
Pil ind out
Pilot indicator output, active high (open collector)
62
Pil det cap Pilot detector capacitor, low voltage activates mono state
63
MPX in
Stereo decoder MPX signal input
64
Stereo PLL
Stereo decoder PLL phasedetector, loop filter
65
Stereo osc
VCO pin for ceramic resonator
Stereo OSC
100
Wireless Components
3 - 11
Specification, September 1999
TUA 4307
Functional Description
66
Iref stereo
Reference current pin, external reference resistor
67
N det in
Noise detector input
68
MPX out
FM MPX signal and AM demodulator signal output
69 70 79
GND stereo Mute FM Fieldstr out
Ground stereodecoder Dynamic FM mute control blocking capacitor
Wireless Components
3 - 12
Specification, September 1999
TUA 4307
Functional Description
71
Mute Depth
Adjustment mute depth FM mute
72
St det out
AM/FM Station detector output
73
St det cap
FM Station detector capacitor
74 75
St det thresh
FM station detector threshold AM station detector threshold
76 77
Dem FM
Demodulator circuit FM
Wireless Components
3 - 13
Specification, September 1999
TUA 4307
Functional Description
78 79 80
+Vif Fieldstr out Vref FM
Supply voltage IF and stereodecoder section
see PIN 70
AM/FM fieldstrength combined output Reference voltage FM section (4.8 V)
Wireless Components
3 - 14
Specification, September 1999
TUA 4307
Functional Description
3.3 Circuit Description
3.3.1
AM/FM-Receiver
The AM/FM-receiver part includes a 2-pin varactor tuned oscillator. In the FM mode the direct oscillator frequency is fed into the double balanced FM mixer, in the AM mode the divided by 4, 6, 8 or 10 oscillator frequency is fed into the AM mixer. The two separate symmetrical input stages of the IC, one optimized for FM-, the other for AM- mode allow symmetrical and unsymmetrical prestage configuration. The AM and FM input frequencies are converted to a fix 1st IF in the 10.7 MHz range. The FM-IF is post amplified in a separate IF amplifier with DC adjustable gain, the AM-IF is fed directly to the 2nd mixer. The TUA 4307 has been designed to work with a PLL in the 100MHz range in both modes or in the AM- mode with the divided frequency. Depending on the input signal strength, the integrated AGC stage for prestage control drives PIN-Diodes as well as MOSFETs.
3.3.2
FM-MODE
FM-IF Demodulator The FM-IF amplifier includes a 7 stage capacitive coupled limiter amplifier with coincidence demodulator and AF output. The AF output signal can be continuously attenuated to decrease the noise. There is a field strength output (with min. 76 dB dynamic range, typ. 1 dB nonlinearity and typ. 3 dB temperature drift) and a soft mute function with adjustable mute depth (with full muting typ 80 dB). An IF counter output with request function and a station detector with S curve criterion and adjustable fieldstrength threshold are available A multipath detector with analog output is available. Its input signal is fed from the high pass filter of the stereo-decoder/noiseblanker and a second 80 kHz 1-pole high pass filter.
3.3.3
Stereodecoder
Power supply, reference current: A temperature-stable, low noise reference voltage generator is used for better ripple rejection and to generate a reference current. This current is used as a time base for the deemphasis, the gate time of the pulse former, and the pilot cancellation, avoiding temperature and tolerance effects. MPX input, MPX filter: A 4-pole low-pass filter determines the bandwidth of the MPX signal.
Wireless Components
3 - 15
Specification, September 1999
TUA 4307
Functional Description
Voltage Controlled Oscillator, Phase Detector: The 912kHz oscillator and the frequency dividers are used as walsh function generators (suppression of 3rd order harmonics) for: 38 kHz for the stereo decoder 19 kHz inphase for phase detector and pilot cancellation 19 kHz quadrature for the phase detector. The phase detector locks the on chip 19 kHz signal to the pilot tone in the MPX signal at 90 deg phase. Pilot Detector, Pilot Indicator, Pilot Cancellation: The voltage at the pilot detector output is proportional to the pilot tone input level. If that level is high enough, the pilot indicator output is activated and the pilot cancellation turned on: a 19 kHz signal proportional to the voltage at the pilot detector output is added to the MPX signal with inverse polarity, cancelling the 19 kHz pilot tone. Interference Detector , Noise Detector, Pulse Former: The signal from the interference input (MPX or field strength signal) passes a 4pole high-pass filter to the noise blanking circuitry. The average noise level is stored in an external capacitor. The interference detector compares the actual noise level with that stored on the capacitor and triggers the pulse former if there is a significant difference. The pulse former generates a gate pulse for the HCC block. During that pulse time the outputs of the deemphasis circuit are switched to hold mode.
3.3.4
AM - MODE
In the AM mode the 1st IF is converted by the 2nd mixer into the 2nd IF in the 450 kHz range. Therefore a 2nd LO crystal oscillator, which can be also used as force input is part of the IC. The 2nd IF signal passes an automatic gain controlled IF amplifier and is then demodulated to the AF in a quasisynchronous demodulator. Switching to seek mode, the AGC time constant is reduced by a factor of 5, the AM IF counter output is switched on and the AF is muted. The AGC voltage is used as AM field strength and is fed to the combined field strength output. The fieldstrength voltage is also used for an station detector with adjustable threshold. The output is combined with the FM station detector. An output for an AM stereodecoder (CQAM) is also available (450 kHz AGC amp output).
Wireless Components
3 - 16
Specification, September 1999
Div.Count toC
SNC HCC Vref H/S
AF out
AM/FM to C open C.
Count toC
1. LO
RF AM
RF FM
60 40 39 38 37 36 35 34 33 +VS 32 31 30 29 Sel A Sel B +VS
59
58 55 47
57
56
54
53 50 49 48 46 45 44 43 42
52 51 41
Wireless Components
Pilot ind.
61
to C
62
63
1. MIXER PRESTAGE AGC
64
STEREODECODER
912k
65
NOISE BLANKER
66
3.4 Blockdiagram 1
67
3 - 17
Mute depth
68 69
FM IF AMP AM-AGC
10.7M 28 27 26 25 IF Amp gain FM Prestage AGC
AM/FM St det out
FM AM
70 71 72 73 74 75
St det threshold
76
FM-IF
77
AMPLIFIER
AMPLIFIER
+VS
78
IF CONVERTER 2. LO OSC
24 23 22
AM
AM/FM fieldstr.
79 4 5 6 8 9 7 10 11 12 13 14 15
80
1
2
3
16
17
18
19
20 10.7M
21
Functional Description
Specification, September 1999
AGC AM time count to C to C AM stereo
TUA 4307
IF req counter out
MPD out
+VS 450k
10.25 M in
10.7M
to FM-Limiter
11
Wireless Components
+VS
to FM to AM prestage prestage
+VS
Gain adj.
27 16 33 29 28 15 14 13 23 24 21 20 35 12 22
25
26
41
40
38
39
IF1 out
IF2
out
30
PrestageAGC
VREF AM
in
IF2
AM Mixer
AGC Amplifier AM stereo FM Mixer 2nd Mixer
8
3.5 Blockdiagram 2
46
AM-In
3 - 18
45
43
FM-In
7
42
IF-Counter AM/FM St det thresh 2. LO
(52) 75
fOsc4-10
:4-10
50
fOsc
51
IF AGC
19 18 17 (79) 72 (68)
Sel A
48 31/32 47 34/44 6
36
37
49
Sel B 1st LO +VS
FSAM VRef 10.25 MHz in IF-AGC
AFout St det out
AM seek mode
( ) not directly connected to pin ( )
Functional Description
Specification, September 1999
TUA 4307
ViFM
(79)
Wireless Components
FSFM
9 1 2 73 76 80
IF counter req
11
10
3.6 Blockdiagram 3
VRef FM
3 - 19
3
1 pole high pass
S-Det
4 70
5
71
72
74
77
( ) not directly connected to pin ( )
MPX
(68)
Functional Description
Specification, September 1999
Multipath detector
Muteinput
St. det Mute- Station depth det out threshold
TUA 4307
Wireless Components
Vref S VSNC 60 59 55 54 56
/H
MONO VHCC Lout
PILOT IND. 58
MPX in
63
62
61
Vref
SWITCH
-
+
PILOT DET.
STEREO 2-POLE AF FILTERS De-emph. HCC GATE Vref 38 + DECODER Vref
SNC
+
3.7 Blockdiagram 4
3 - 20
LOGIC INTERFER. DET. REFERENCE CURRENT
4-POLE HIGH-PASS FILTER
4-POLE MPX FILTER
PILOT CANCEL
PHASE DET.
19 19 19
PULSE FORMER
Vref NOISE DET. Vref (8)
+
AM/ FM
POWER SUPPLY
VCO
64 +Vs
65 66
69
78
3
67
52
53 to multipath detector AM/FM
57 Rout
Functional Description
Specification, September 1999
TUA 4307
CSB 912
4
Applications
Contents of this Chapter 4.1 4.2 Application Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
TUA 4307
Applications
4.1 Application Circuit
Wireless Components
4-2
Specification, September 1999
TUA 4307
Applications
4.2 Hints
See separate available Application Note TUA 4307.
Wireless Components
4-3
Specification, September 1999
5
Reference
Contents of this Chapter 5.1 5.1.1 5.1.2 5.1.3 5.2 5.3 5.4 5.4.1 5.4.2 5.4.3 5.4.4 5.5 Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 AC/DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 AM 1st LO ECL divider truthtable . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11 Note 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11 Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12 Diagram D1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12 Diagram D2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13 Diagram D3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14 Diagram D4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15 Test Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
TUA 4307
Reference
5.1 Electrical Data
5.1.1
Absolute Maximum Ratings
WARNING
The maximum ratings may not be exceeded under any circumstances, not even momentarily and individually, as permanent damage to the IC will result.
Table 5-1 Absolute Maximum Ratings, Ambient temperature TAMB=-40C ... + 85C Parameter Symbol Limit Values min Junction temperature Storage temperature Thermal resistance ESD-voltage, HBM TJ TS RthSA VESD -4 -40 -40 max 150 125 54 +4 C C K/W kV 100pF, 1500 Unit Remarks
5.1.2
Operating Range
Within the operating range the IC operates as described in the circuit description. The AC / DC characteristic limits are not guaranteed.
Table 5-2 Operating Range Parameter Symbol Limit Values min Supply voltage Ambient temperature VS TA 8 -40 max 9 85 V C Unit Test Conditions L Item
Wireless Components
5-2
Specification, September 1999
TUA 4307
Reference
5.1.3
AC/DC Characteristics
AC / DC characteristics involve the spread of values guaranteed within the specified supply voltage and ambient temperature range. Typical characteristics are the median of the production.
Table 5-3 AC/DC Characteristics with Tamb 25 C, Vs = 8.5 V Parameter Symbol min Current consumption ISFM ISAM 90 65 Limit Values typ 105 90 max 125 105 mA mA FM mode AM mode
1 1
Unit
Test Conditions
L
Item
1
1. AM/FM - Receiver
1st LO Frequency range Frequency range Counter output Divided counter output Divided counter output Output impedance Output impedance Frequency Reference voltage RF Output Current f1st LO f1st LO V51 V50 V50 R50 R51 f1st LO V47 I47 0.8 240 10 4.5 4.8 5.1 1 80 50 70 28 100 40 150 1 300 1.2 360 140 150 MHz MHz mVrms mVrms mVrms k MHz V mA Vtuning=0V Qfactor of coil >90 RL51=330; Ref. Appl. board RL50=330; Ref. Appl. board RL50=10k; Ref. Appl. board
1 s 1
1 2 3 4 4a 5 6 7 8 9
1
s
s s 1 1 1
10.7 MHz IF amplifier fIF1= 10.7 MHz DC input voltage Input resistance Output resistance Max. voltage gain Min. voltage gain Noise figure
V29 R29 R24 A29-24 A29-24 FFM
3.5 270 270 23 13
3.9 330 330 26 16 7
4.3 390 390 29 19
V dB dB dB V27=1.5V V27=3.5V RG=330 AM
1 1 1 1 1 s
10 11 12 13 14 15
Wireless Components
5-3
Specification, September 1999
TUA 4307
Reference
Table 5-3 AC/DC Characteristics with Tamb 25 C, Vs = 8.5 V (continued) Parameter Symbol min Limit Values typ max Unit Test Conditions L Item
AM mode fIF1= 10.7 MHz; fIF2= 450kHz; f45-46= 1 MHz; V52=1V
Mixer 1 Interceptpoint 3rd order IP3 134 dBV Special testcircuit necessary V45,46=80mVrms ( RL=330)
s
1
Mixer gain RF/IF gain (mix1 + mix2) Max. input voltage Noise figure (10 MHz) Input impedance Input impedance Input impedance Input impedance Divider select low Divider select high Prestage AGC output AGC-voltage AM AGC-voltage AM AGC-voltage FM AGC-current FM Integrator Current Integrator Current Integrator Current Integrator Current
AM1 ARF/IF V45-46 F R45-46 C45-46 R45-46 C45-46 V36,37L V36,37H
2 12 1100
6 16 1400 7
10 20
dB dB mVpp dB
1
calc
2 3 4 5 6 7 8 9 10 11
SINAD> 34dB;m=80% Rg opt=700 sym. sym. asym. asym.
1
s s s s s
3.2 1.6 1.6 3.2 0 3.0
4 2 2 4
4.8 2.4 2.4 4.8 1.3 Vs
k pF k pF V V
1 1
V25 V25 V41 I26 I40* I40* I40* I40*
6.5 0 0 0 -12 +10 -17 +50
7.5 0.5 0.15 0.1
V V V mA A A A A
V45,46 =50mVrms V45,46 =200mVrms V45,46=50mVrms V45,46=50mVrms V45,46=50mVrms Vm=3V V45,46=150mVrms Vm=3V V45,46=0mVrms Vm=3V V45,46=400mVrms Vm=3V
1 1 1 1 1 1 1 1 1
12 13 14 15 16 17 18 19 20
-25
+25
-45 +40 -55 +90
-35
+70 3.4
Prestage AGC threshold volt.
V30AM
V
Wireless Components
5-4
Specification, September 1999
TUA 4307
Reference
Table 5-3 AC/DC Characteristics with Tamb 25 C, Vs = 8.5 V (continued) Parameter Symbol min 2nd AM IF section Mixer 2 Mixer gain AM2 7 10 13 dB V21 =1mV; Vout=VIF450 f21=10.7 MHz; f18/19=10.25 MHz 1 1 Limit Values typ max Unit Test Conditions L Item
Noise figure Max Input Voltage Input impedance 2nd LO Operational frequency External force voltage Input Imp. Crystal Osc Crystal Resistance Spurious Harmonics Crystal
F V20-21 R20-21
10 1400 1.8
dB mVpp k SINAD> 34dB;m=80%
s
2 3 4
1
s
f18-19 V18 Z18-19 RC1 aSP
10 60 -500
10.25
25
MHz mVrms Rg=600; Ck= 100pF
s
5 6 7 8 9
1
s
-600
-400 100
dB PTOTC=50W Fundamental PTOTC=50W f < 30 MHz
s
-20
s
FM mode fIF=10.7 MHz; f42-43=100 MHz; V52=open
Mixer 1 Interceptpoint 3rd order Noise figure (10 MHz) Mixer gain RF/IF gain (mixer1 + IFamp) Input impedance Input impedance Input impedance Input impedance Prestage AGC output AGC voltage FM AGC voltage FM AGC current FM V41 V41 I26 5.6 0 9.5 12 6.4 7.2 0.1 14.5 V V mA V42,43=0mVrms V42,43=50mVrms V42,43=0 mVrms Vm=0.7V 1 1 1 9 10 11 IP3 F AM1 AM1 R42-43 C42-43 R42-43 C42-43 5 31 3.2 1.6 1.6 3.2 125 6 9 35 4 2 2 4 12 39 4.8 2.4 2.4 4.8 dB V dB dB dB k pF k pF special testcircuit necessary Rg opt=500 V42-43=10mVrms; RL=330 V27=1.5V sym. sym. asym. asym.
s s
1 2 3 4 5 6 7 8
1
calc
s s s s
Wireless Components
5-5
Specification, September 1999
TUA 4307
Reference
Table 5-3 AC/DC Characteristics with Tamb 25 C, Vs = 8.5 V (continued) Parameter Symbol min AGC current FM AGC voltage AM AGC voltage AM integrator Integrator Current Integrator Current Integrator Current I26 V25 V40 I41* I41* I41* - 12 +15 +50 0 0 6 Limit Values typ max 0.1 0.5 7.5 - 46 +50 +90 mA V V A A A V42,43=50mVrms Vm=0.7V V42,43=0 V42,43=0 V42,43=0 Vm=4.8V V42,43=60mVrms Vm=4.8V V42,43=150mVrms Vm=4.8V 1 1 1 1 1 1 12 13 14 15 16 17 Unit Test Conditions L Item
- 25
+30 +70
Prestage AGC threshold volt.
V30FM
3.6
V
1
18
*) Integrator currents are measured between the output pin (- Pole of the measurement equipment) and a voltage source Vm (+ Pole) 2.FM Demodulator Measuring condition: fiIF=10.7 MHz; f= 75 kHz; fmod= 1 kHz;V11 =10 mVrms ; V52=open; Deemphasis= 100 s Fieldstrength dynamic range Fieldstrength nonlinearity Fieldstrength temperature drift Fieldstrength load capacitance Fieldstrength load resistance Fieldstrength voltage Fieldstrength voltage Fieldstrength voltage AF-output voltage AF-output voltage Input voltage for limiter threshold Total harmonic distortion AM-suppression Signal-to-noise ratio AF mute V79 V79 V79 V68 V68 V11 THD68 aAM aS/N aAF 70 72 14 1 4 1.5 0 450 550 650 33 0.4 80 80 17 20 45 0.8 4.6 1.9 5.2 2.3 1 650 V79 V79 V79 66 72 1 3 50 dB dB dB pF k V V V mVrms mVrms Vrms % dB dB dB V70=0; V71=open m=30 % V11=200mVrms V11=1mVrms V11=0mVrms RL>10k; Deemph.=100 s RL>10k; no Deemph. V68=V68 - 3dB see Diagram D1 see Diagram D2 see Diagram D3 1 1 1
s s
1 1 1 1
s
2 3 4 5 6 7 8
1 1 1 1 1
Wireless Components
5-6
Specification, September 1999
TUA 4307
Reference
Table 5-3 AC/DC Characteristics with Tamb 25 C, Vs = 8.5 V (continued) Parameter Symbol min IF counter output voltage IF counter output disable Station detector stop window Station detector non stop V1 V2 fSt72 V72 30 0.5 70 Limit Values typ 100 0.5 max mVrms V kHz V V74=2.4V; V11=1mVrms RL = 100k; Ref. Appl. board 1 1 1 1 9 10 11 12 Unit Test Conditions L Item
Station detector stop Station det. inside window Station det. outside window Reference Voltage FM Output Current
V72 I72 V72 V80 I80
3 10 0.5 4.5V 4.9 5.3 1
V A V V mA
V74=1.4V; V11=1mVrms
1 1
13 14 15 16 17
I72=1mA
1 1 1
Multipath detector, f67=200 kHz Attack current Recovery current Start voltage Detector characteristic Detector characteristic I4*) I4*) V5Def V5 V5 600 -6 4.4 V5Def0.
14V
800 -9 4.7 V5Def0.1V
1070 -12
A A V
V67AC=1Vpp , Vm=5.0 V V67AC=0; Vm=3.6V V67AC=0V f67=25kHz; V67=160mVpp f67=200kHz; V67=160mVpp
1 1 1 1 1
18 19 20 21 22
V5Def V5Def -2.3
V V
V5Def -3.3
V5Def -2.8
*) Integrator currents are measured between the output pin (- Pole of the measurement equipment) and a voltage source Vm (+ Pole) 3.Stereodecoder Measuring condition: V63=600mVrms; f=1 kHz; 15kHz LP with 19kHz Notch Total harmonic distortion Signal to noise ratio Channel separation AF output voltage Overdrive margin AF output DC voltage Difference of output voltage levels Muting depth THD56,57 S/N56,57 aSep V56,57 V56,57 max VDC 56,57 V56,57 A56,57 70 75 2.5 65 28 650 0.1 75 40 780 2 3 3.5 2 900 0.3 % dB dB mVrms dB V dB dB V53=0 Stereo;Mono THD= 1% f= 1 kHz Stereo 1 1 1 1 1 1 1 1 1 2 3 4 5 6 7 8
Wireless Components
5-7
Specification, September 1999
TUA 4307
Reference
Table 5-3 AC/DC Characteristics with Tamb 25 C, Vs = 8.5 V (continued) Parameter Symbol min Muting depth DC-offset at mute DC-offset stereo on/off A56,57 DC 56,57 DC 56,57 19 38 57 70 -100 -100 Limit Values typ 75 0 0 100 100 max dB mV mV V6=2.4V 1 1 1 9 10 11 Unit Test Conditions L Item
Carrier and harmonic suppression (referenced to V56,57=780 mVrms)
Pilotsignal (f=19kHz) subcarrier
40 40 40
45 50 50
dB dB dB
1 1 1
1 2 3
(f=38kHz) (f=57kHz)
Mono/Stereo control Pilot threshold voltage: For stereo"on" For stereo"off" Hysteresis Stereo-indicator output Pilot off Pilot on V61off I61on 0.5 10 V A I61=1mA 4 5 VPILon VPILoff 5 20 14 3 30 mVrms mVrms dB VPILon / VPILoff 1 1
s
1 2 3
external control voltages (active low)
Operational voltage for external, mono control (pin 62)
V64 thr V52thr
1 1
V V AM on
1 1
6 7
Operational voltage for AM/FM (pin 52)
Deemphasis Reference frequency = 400Hz; Cdeemph=10nF; nom=75 s
Minimum FM Maximum FM Minimum AM Maximum AM Stereo/Mono blend control : Channel separation Channel separation Oscillator Max. Osc. frequency Min. Osc. frequency VCO-gain Oscillator voltage Oscillator swing foscmax foscmin 0.7 -2.0 -41 2.5 250 1.0 -1.0 -32 4 350 2.0 -0.7 -21 5.5 450 % % kHz/V V mVrms
100 % x (fmax /912kHz-1) 100 % x (fmax /912kHz-1)
Amin FM Amax FM Amin AM Amax AM
5 12 5 12
7 15 7 15
9 18 9 18
dB dB dB dB
V593.8V; fm=5kHz V59=1.5 V; fm=5kHz V593.4V; fm=5kHz V59=1.5V; fm=5kHz
1 1 1 1
8 9 10 11
aSep aSep
28 3
dB dB
V60=3.8V V60=3.3V
1 1
1 2
1 1 1
s
3 4 5 6 7
f/V62 V65 DC V65 AC
1
Wireless Components
5-8
Specification, September 1999
TUA 4307
Reference
Table 5-3 AC/DC Characteristics with Tamb 25 C, Vs = 8.5 V (continued) Parameter Symbol min PLL PD-gain Noise detector Input resistance Input high-pass filter Trigger threshold R67 fin67 V67 min 80 80 99 100 30 120 120 50 k kHz mVrms -3dB V53 = V53 (V67 mean=0), f67=200 kHz V543=V543(V67
mean=50mVrms ),
Limit Values typ max
Unit
Test Conditions
L
Item
i/
6.0
8.2
10.2
A/rad
Vpilot = 54 mVrms
1)
8
s s
9 10 11
1
Trigger threshold
V67 dyn
130
170
210
mVrms
1
12
f67=200 kHz Maximum noise mean value * Suppression pulse duration Input offset current Attack current Recovery current I54,55 I53att I53rec
V67maxmean
65 34 -50
80 40 0 135 20
115 46 50
mVrms s nA A A
f67=200 kHz
1 1
s
13 14 15 16 17
V53=5.5V V53=4V
s s
*) The trigger threshold is adapted to the input noise. IF max. noise mean value is exceeded, threshold is too high for any trigger of the noise blanker
4.AM Mode AGC-Amplifier Measuring condition: fiF= 450 kHz; fmod = 1 kHz; V13= 10mVrms , Deemphasis=100 s AGC-range Input sensitivity AGC time seek mode off AGC time seek mode on Integrator Current Integrator Current Integrator Current Integrator Current Field strength output Field strength output A V13 V6 L V6 H I17* I17* I17* I17* V79 V79 0 2.4 15 - 13 400 -400 0 1.4 25 - 25 60 66 100 0.7 5 35 -33 650 -650 0.8 2.1 dB Vrms V V A A A A V V V13=0; Vm=3V V6=0.7V V13=100mVrms ; Vm=3V; V6=0.7V V13=0 Vm=3V; V6=2.4 V V13=100mVrms ; Vm=3V; V6=2.4 V V13=0 mV; seek mode off V13=500 V; seek mode off V68=V68AM 3dB V68=V68AM -3dB 1 1 1 1 1 1 1 1 1 1 1 2 3 4 5 6 7 8 9 10
+500
- 500 0.3 1.75
Wireless Components
5-9
Specification, September 1999
TUA 4307
Reference
Table 5-3 AC/DC Characteristics with Tamb 25 C, Vs = 8.5 V (continued) Parameter Symbol min Field strength output Field strength output V79 V79 3 4.0 Limit Values typ 3.4 4.4 max 4 5.1 V V V13=5 mV; seek mode off V13=30 mV; seek mode off 1 1 11 12 Unit Test Conditions L Item
*) Integrator currents are measured between the output pin (- Pole of the measurement equipment) and a voltage source Vm (+ Pole)
Demodulator AF output voltage AF output voltage Total harm. distortion (S+N)/N (S+N)/N (S+N)/N AF-linearity AGC output volt. for AM stereo IF - Counter IF - counter; Output voltage IF-counter; output voltage IF-counter; Output voltage Station detector non stop Station detector stop Station det. output stop Station det. output nonstop 1 Test Circuit 1 V7 V7 V7AC V72 V72 I72 V72 3 10 0.5 200 270 0.5 2 0.5 mVrms VDC mVrms V V A V V72=1mA RL=100k;V6=2.4 V; Ref. Appl. board V6=0.7V V6=0.7V
V75=2.2V; V13=500Vrms V75=1.3V; V13=500Vrms
V68AM V68AM THD68
360 283
480 406 0.7 30
600 550 2.5
mVrms mVrms % dB dB dB
m=0.8
m=0.8; Deemph=100 s
1
s
13 14 15 16 17 18 19 20
1 m=0.8; V13=20V m=0.8; V13=200V
m= 0.8; V13=100mVrms
s
aS/N aS/N V68 V8
40 60
50 70 3
1 1 1
dB mVrms RL = 100k; Ref. Appl. board
48
60
75
1
1 1 1 1 1 1 1
21 22 23 24 25 26 27
s This value is only guaranteed in lab.
Total AF voltages Total audio voltage AM Total audio voltage AM Total audio voltage FM Total audio voltage FM V56,57 tot V56,57 tot V56,57 tot V56,57 tot 455 485 565 605 625 625 715 715 855 805 900 850 mVrms mVrms mVrms mVrms automatic test Lab test automatic test Lab test
calc
s
calc calc
s
calc
The value above are calculated as follows: Total audio level FM: AF output voltage x stereodecoder gain Total audio level AM: AF output voltage x stereodecoder gain Stereodecoder gain = AF output voltage / V63 = 600 mVrms Input voltage decoder. The automatic test values are including the additional spread of a high volume automatic testfloor tolerances.
Wireless Components
5 - 10
Specification, September 1999
TUA 4307
Reference
5.2 AM 1st LO ECL divider truthtable
Table 5-4 Sel A divide by 4 divide by 6 divide by 8 divide by 10 0 0 1 1 Sel B 0 1 0 1
5.3 Note 1
V (t) ORZSDVV N+] 1 64 R 10k 1n 63 51k 100n VMPX = 54 mVrms fMPX = 20 kHz
V=V67 (3 V typ.) V (t)
1ms t 0
Vpp
Vpp Phase Detector Gain PDG = ----- / rad 2R
Figure 5-1 Definition of Phase Detector Gain
Wireless Components
5 - 11
Specification, September 1999
TUA 4307
Reference
5.4 Diagrams
5.4.1
Diagram D1
VF Characteristic
VF (V)
D1
30
M3 M1
50
70
M2 VF - Dynamic
90
110
M4
MVFmin
MVFmax
VF - Dynamic : The dynamic range of VF voltage is determined by the test points M1 through M4 as follows: M1: test point (at ViIF= 50 dBV) supplies VF (M1) M2: test point (at ViIF= 90 dBV) supplies VF (M2) M3: test point (at ViIF= 20 dBV) supplies VF (M3) M4: test point (at ViIF=120 dBV) supplies VF (M4) Hence follows :
VF (M4) - VF (M2) MVFmax:= 90 dBV+ -------------------- x 40 dB VF (M2) - VF (M1) VF (M1) - VF (M3) MVFmin:= 50 dBV - ----------------- x 40 dB VF (M2) - VF (M1)
VF - Dynamic = MVFmax - MVFmin
Wireless Components
5 - 12
Specification, September 1999
TUA 4307
Reference
5.4.2
Diagram D2
VF (V)
VF Characteristic
D2
VF VFmax VFmin
ViIF 90 110 ViIF (dBV)
30 M1
50
70
M2 Test points to determine VF linearity
VF - Linearity: is determined at 25 C VF (M2) - VF (M1) Slope : m= ------------------ 40 dB
The tolerance range of the VF - linearity is determined by two parallel lines: VFmax = VF (M1) + m (M + 60 dB+ 1dB) VFmin = VF (M1) + m (M + 60 dB - 1dB) The VF values within the VF dynamic range (MVFminMMVFmax) must be inside the predetermined tolerance range: VFmin VF ( M ) VFmax
Wireless Components
5 - 13
Specification, September 1999
TUA 4307
Reference
5.4.3
Diagram D3
VF (V)
VF Characteristic
D3
VF VFmax VFmin
ViIF 90 M2 110 ViIF (dBV)
30
50 M1
70
VF -Temperatur - Drift : It is determined within -40 bis +85 C VF (M2) - VF (M1) Slope 40 dB The tolerance range of the VF temperature drift is determined by two parallel lines: VFmax = VF (M1) + m (M + 60 dB+ 3dB) VFmin = VF (M1) + m (M + 60 dB - 3dB) The VF values for temperatures between -40 to +85 C within the VF dynamic range (MVFminVFMVFmax) must be inside the predetermined tolerance field: VFmin VF ( M ) VFmax : m= ------------------ (at 25 C )
Wireless Components
5 - 14
Specification, September 1999
TUA 4307
Reference
5.4.4
Diagram D4
0dB
Muting Characteristic
D4
VqAF (dB)
20dB
default
40dB
60dB
80dB 0V 1V 2V 3V 4V V71(V);V70=0 V 4.8 V
Figure 5-2
Diagram of Mute Characteristics
Wireless Components
5 - 15
Specification, September 1999
51
51
330
10n
4k7
V60 V58 22k 22k 100 100n
V59
V57
V56
V55 V41
V54
V53
V52
330
100p
MC122
5.5 Test Circuits
10n
10n
10n
33n
1n
33n
1n
1n
Deem L
Ng cap AM/FM
33n
Deem R
Vref H/S
AF out L
Nlev cap
dir count
Vref RF
GND2 rf
Contr. SNC
Contr. HCC
1st LO
AF out R
div count
RF AM in
RF FM in
1n
60
59
58
57
56
55
54
53
52
51
50
49
1n
48
47
46
45
44
43
42
Pre cap FM
V61
Pil ind out
61
1k5
CSB912
Test Circuit part 1
V62
Pil det cap
62
10n 38
V63
MPX in 51k 68n
63
V64
stereo PLL stereo osc
64
RF & frequency measure V 65
65
51
V66 1k
Iref stereo 100k
66
TUA 4307 P-MQFP 80-1
RF Source V67
N det in
67
51 22n GND IF amp 33
V68
MPX out
68
GND stereo
69
V70
Mute FM
70
10n
BB914
Wireless Components
RF & frequency measure V 51 frequency counter V 50 VLO tune V47 RF Source RF Source 1n 100 51 51 3k9 10n 41 40 Pre cap AM 100 10n 10 39 10n 330 51 1st mix out RF measure 37 SELB V37 V40 VS 36 SELA V36 35 Vref AM 100 100n 34 GND1 rf V35 32 +V rf 100n 31 +V if connected to Pin 78 V32
Figure 5-3
5 - 16
Reference
Specification, September 1999
TUA 4307
AM IF cap
FM IF req
2nd mix in
AM IF bias
AM IF bias
FM IF bias
AM stereo
AM seek m
MP det out
MP det cap
10n
33n
AM IF count
2nd mix out 10
FM IF count
22n
10n 1k 51 33n V6 10n
47n 47n 51 47n
10
Wireless Components
30 V30 29 IF amp in 22n 28 IF amp bias 100 33n 27 IF gain adj V27 51 V28 RF source V29
V71
71
Mute depth FM
V72
St det out
72
VS
100k
V73
St det cap
73
Figure 5-4
TUA 4307 P-MQFP 80-1
26 IPreFM 25 VPreAM 24
100n
V74
St det thres FM
74
V75
St det thres AM
75
V26
Neosit7.1k 1n 56k
BB512
Vtune
76
V25 IF amp out 22n 330 IF gain cap 23 33n 22 GND2 if 51 RF measure V 24
56k
150p
150
10n
BB512
Test Circuit part 2
5 - 17
4 5 6 7 8 9 10 11 12 13 14 15 16 2,2n FM IF in AM IF in GND1 if MP det in 10n V5 Neosid VS RF Source V11 RF Source V13 V4 100k V7DC 51 51 RF measure RF measure V7AC, V 8
56k 1nDem FM
77
connected V 78 to Pin 31
+Vif
78
100n
V79
Fieldstr.
79
V80
Vref FM
22n 21 17 18 19 20 2nd mix in 51
80
RF Source V21
1n
1
2
3
2nd LO
2nd LO 100p 1k 51 1 16V V17
22n
V2
V3
100k
51
RF measure V 1
Reference
Specification, September 1999
TUA 4307

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