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NTE1570 (NPN Tuner) & NTE1572 (FET Tuner) Integrated Circuit TV Video IF, Sound IF
Functions: PIF D Three Controlled IF Amplifier Stages D Video Demodulator Controlled by Picture Carrier D Black Noise and White Noise Inverter D Peak AGC D DC Amplifier for RF AGC Out SIF D Three Differential IF Amplifier Stages D Phase Detector D DC Controlled Attenuator D Audio Amplifier Stage with NFB Terminal
Features: D PIF, SIF, ATT Audio Driver D 2 Chip Color TV System is Possible with NTE1547 PIF SIF D High Gain, Wide Band IF Amplifier D Excellent Limiter Charactristics D AGC Characteristics with Excellent Stability D Excellent Attenuato Characteristics D Excellent DG/DP Characteristics D Excellent S/N Chracteristics due to Delayed 3 Stage AGC Action D Negative Video Output Signal D Switch Off the Video Part with VTR Switch Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Pin11 Open Voltage, V11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Video DC Output Current, I15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6mA Audio DC Output Current, I3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3mA Pin2 Voltage, V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6W Derate Above 25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.8mW/C Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +65C Storage Temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +150C
Electrical Characteristics: (TA = +25C, VCC = 12V, fp = 58.75MHz, fS = 54.25MHz)
Parameter PIF Section Recommended Supply Voltage Supply Current Video DC Output Voltage NTE1570 NTE1572 AFT DC Output Voltage NTE1570 NTE1572 NTE1570 NTE1572 AFT DC Offset Voltage NTE1570 NTE1572 RF AGC Residual Output Voltage NTE1570 NTE1572 RF AGC Leakage Current NTE1570 NTE1572 Video Sensitivity (Pin7-Pin8) AGC Range Sync Tip Level Voltage (V15) Maximum IF Input Voltage (PIF) White Noise Threshold Level (V15) White Noise Clamp Level (V15) Black Noise Threshold Voltage (V15) Black Noise Clamp Level (V15) Video Frequency Response Suppression of Carrier Suppression of 2nd Carrier 920kHz Beat Level Differential Phase Differential Gain PIF Input Impedance PIF Input Capacitance AFT Output Voltage Upper Lower vi APIF VSYNC iIN(MAX) VWTH VWCL VBTH VBCL fBW CL I2nd I920 DP DG RIN(PIF) CIN(PIF) I11(leak) V11(sat) V13-14 V14 V13 VCC ICC V15 SW1: 2, SW2: 2 SW1: 1, SW2: 2 SW1: 2, SW2: 2 SW1: 1, SW2: 2 SW1: 2, SW2: 2 SW1: 1, SW2: 2 SW1: 2, SW2: 2 SW1: 1, SW2: 2 SW1: 2, SW2: 2 SW1: 1, SW2: 2 SW1: 2, SW2: 1 SW1: 1, SW2: 1 Note 1 Note 2 Note 3 Note 4 Note 5 Note 5 Note 5 Note 5 Note 6 Note 7 Note 8 Note 9 Note 10 Note 10 Note 11 Note 11 60 60 2.3 100 5.8 3.7 1.4 2.9 4.5 40 40 33 - - 1.5 - 11.7 1.8 150 64 2.5 120 6.2 4.1 1.6 3.3 5.5 50 50 38 3.5 7 3.0 3 11.9 2.3 250 - 2.7 - 6.6 4.5 1.8 3.7 - - - - 5.0 10 6.0 10 12.0 2.8 Vrms dB V mVrms V V V V MHz dB dB dB deg % k pF V V - - 1.0 A - - 0.5 V -1.5 0 +1.5 V 5.3 6.8 8.3 V 10.8 50 5.2 12.0 72 5.5 13.2 95 5.8 V mA V Symbol Test Conditions Min Typ Max Unit
V13U, V14U Note 13 V13L, V14L
Electrical Characteristics (Cont'd): (TA = +25C, VCC = 12V, fp = 58.75MHz, fS = 54.25MHz)
Parameter RF AGC Maximum Available Current NTE1570 NTE1572 RF AGC Delay Setting Range (Delay) AFT Band Width Video Output Voltage SIF Output Voltage SIF Section Input Limiting Voltage AM Rejection Ratio vIN(LIM) AMR RD = , Note 17 SIF IN: f = 4.5MHz, fm = 400Hz, f = 25kHz, AM: 30%, vin = 100dB SIF IN: f = 4.5MHz, fm = 400Hz, f = 25kHz, vin = 80dB, RD = 12k SIF IN: f = 4.5MHz, fm = 400Hz, f = 25kHz, vin = 80dB SIF IN: f = 4.4 to 4.6MHz f = 4.5MHz f = 4.5MHz Note 18 SW1: 2, SW2: 2 SW1: 1, SW2: 2 V23 SW1: 2, SW2: 2 SW1: 1, SW2: 2 V1 ATT MAX SW1: 2, SW2: 2 SW1: 1, SW2: 2 Note 19 GATT MAX RA = 0 V1 vPT GV AF THD AF vOAFMAX V3 Note 22 Note 23 Signal Leakage AF Amp Gain AF Amp Distortion AF Amp Max. Output Voltage AF Output DC Voltage NTE1570 NTE1572 Note 20 Note 21 P23A = 1VPP, 400Hz, SW3: ON, ATT: -26dB Setting THDAF = 5%, Note 21 SW1: 2, SW2: 2 SW1: 1, SW2: 2 - 40 200 45 400 - Vrms dB VIN FW vOUT SOUT Symbol I4(max) Test Conditions SW1: 2, SW2: 1 SW1: 1, SW2: 1 Note 14 Note 13 Note 15 Note 16 Min 7.0 0.3 5 1.4 2.25 200 Typ - - 7 - 2.50 400 Max - - 9 - 2.75 600 Unit mA mA V MHz V mVrms
Recovered Output Voltage
VOD
0.5
0.75
-
Vrms
Total Harmonic Distortion Max. Audio Output Voltage SIF Input Impedance SIF Input Capacitance DET Output Impedance DC Voltage, Pin21 NTE1570 NTE1572 DC Voltage, Pin23 NTE1570 NTE1572 DC Voltage, Pin1 NTE1570 NTE1572 Max. Attenuation DC Volume Gain ATT Characteristics
THD vOM RIN(SIF) CIN(SIF) RO(DET) V21
- 4.0 10 - 10 3.5 3.5 4.8 4.8 6.0 6.0 60 4 3.4 4.5 - - - 1.5 6.7 6.7
1.0 - 20 3.0 15 4.4 4.4 6.0 6.0 6.7 6.7 - 6 3.8 4.9 1.0 20 1.5 2.0 7.7 7.7
- - 30 - 20 5.3 5.3 7.2 7.2 7.4 7.4 - 8 4.2 5.3 3.0 - - - 8.8 8.8
% VP-P k pF k V V V V V V dB dB V V mVrms dB % Vrms V V
Notes: Note 1. VAGC (P5 EXT. Applying Voltage) = 11.5V, PIF IN: f = 58.75MHz 1kHz 30% AM Modulation. Adjust PIF input level (vi) so that the detected output of P15A with high impedance probe will be 0.8VP-P and measure the input level. Note 2. VAGC = 4V. Measure PIF input level (vi) same as Note 1. Note 3. PIF IN: f = 58.75MHz CW 15mVrms. Measure DC level of P15. Note 4. PIF IN: f = 58.75MHz, APL 100%, 87.5% AM modulation. P5: Ppen. (1) Adjust PIF input level 50mVP-P and measure the detected output level v01P-P. (2) Then increase the input level so that the detected output level will be 1.1 x v01P-P and measure the input level. Note 5. VAGC = 8V. PIF IN: 58.75MHz 10MHz variable or sweep 15mVrms measure DC level of P15. Note 6. VAGC = 8V (GR = 30dB). SG1: 58.75MHz CW, SG2: 58.65 to 40MHz variable. (1) Setting output of SG1 so that DC level of P15 will be 4V. (2) Setting output of SG2 (58.65MHz) so that AC level of P15 will be 0.5VP-P. (3) Decreaseing frequency of SG2 until AC level of P15 will be 0.35VP-P (-3dB of 0.5VP-P) then read fSG2 = F, fBW = 58.75-F MHz Note 7. SG1: 58.75MHz, 1kHz 80% AM modulation 100mVrms. SG2, SG3: OFF. Setting VAGC so that output AC level of P15 will be 2.7VP-P. Measure CL of P15 after setting to 0% AM of SG1. Note 8. Measure I2nd of P15 same as Note 7. Note 9. VAGC = 8V. SG1: 58.75MHz (P = Picture) 100mVrms. SG2: 54.25MHz (S = Sound) 32mVrms(-10dB of SG1). SG3: 55.17MHz (C = Chroma) 32mVrms(-10dB of SG1). (1) Seting VAGC so that the output tip level (lower) of P15 will be 3V DC. (2) Measure the level difference (dB) between c-level and 920kHz level. Note10. VAGC = 8V. PIF IN: f = 58.75MHz video signal (ramp) 87,5% AM 100mVP-P. Setting ATT so that the sync tip level of P15 will be 2.5V DC. Measure DP and DG. Note 11. VAGC = 5V, f = 58.75MHz. Measure RIN, CIN. Note12. AFT sensitivity F/(V13-V14) (1) INT, AGC (P5 Open) (2) PIF Input: 58.75MHz 1MHz, CW 15mVrms. (3) Read the frequency (f1) of PIF when V13-V14 = -1V. (4) Read the frequency (f2) of PIF when V13-V14 = 1V. Then calculate F/(V13-V14) = |f1-f2| Note13. FW, V13U, V14U, V13L, V14L (1) INT AGC (P5 Open) (2) PIF IN: 58.75MHz 10MHz CW 15mVrms (3) 9pF at Pin16 should b shorted (4) Read the frequency (f1 or f2) when the V5 or V6 reduced to 90% level of A or B with varing the frequency. Then band width is the difference from center requency (f0). Note14. P5: Open. PIF IN: 58.75MHz CW 20mVrms. (1) Adjust the voltage of Pin3 so that the voltage of Pin4 will be 6V DC. (2) Measure the volatge at Pin3. Note15. P5: Open. PIF IN: 58.75MHz, 100% APL 87.5% AM modulation signal amplitude 50mVP-P. Measure detected output voltge (White peak to sync tip). Note16. P5: Open. SG1: 58.75MHz CW 100mVrms. SG2: 54.25MHz CW 25mVrms. Measure SIF (4.5MHz) output voltage at P15. Note17. SIF IN: f = 4.5MHz, FM fMOD = 400Hz, f = 25kHz. (1) Adjust SIF input level 100mVP-P and measure the detected output level vOS. (2) Then decrease the input level so that the detected output level will be 3dB down of vOS and measure the input level.
Notes (cont'd): Note18. Output Impedance (1) SIF IN: f = 4.5MHz, FM fMOD = 400Hz, f = 25kHz, 80dB. (2) At P23 read the VO1 at RX = , then read the RX when recovered output become VO1/2 with varying the RX. The RX is the output impedance. Note19. ATT MAX. (1) SIF IN: f = 4.5MHz, FM fMOD = 400Hz, f = 25kHz, 80dB. (2) Read the 400Hz component of VA1 at P2 with RA = 0, then read VA1' with RA = . Note20. vPT (1) SIF IN: f = 4.5MHz, FM fMOD = 400Hz, f = 25kHz, 80dB. (2) Read the 400Hz component at P3. Note21. GV AF (1) Apply 400Hz 0.1Vrms signal to P2. (2) Read the output voltage at P3. Note22. Read the 400Hz component of VA1 at P2 with RA = 0. Set RA so that VA1' = 1/2VA1 (-6dB), then read DC voltage of Pin1 (V1). Note23. Read the 400Hz component of VA1 at P2 with RA = 0. Set RA so that VA1' = 3.16 x 10-3VA1 (-50dB), then read DC voltage of Pin1 (V1).
Pin Connection Diagram Volume Control 1 NFB 2 Audio Output 3 Audio GND 4 IF AGC Filter/ 5 VCR Switch PIF Input 6 PIF Input 7 PIF Input 8 PIF Input 9 RF AGC Delay 10 RF AGC Output 11 PIF GND 12 24 23 22 21 20 19 18 17 16 15 14 13 SIF Detector De-Emphasis SIF Detector SIF Input VCC AFT Tank Video Tank Video Tank AFT Tank Video Output AFT Output 2 AFT Output 1
24
13
1
12
1.300 (33.02) Max .225 (5.73) Max
.520 (13.2)
.100 (2.54) 1.100 (27.94)
.126 (3.22) Min
.600 (15.24)

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