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TB2173FTG
TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic
TB2173FTG
2-Source Stereo Headphone Amplifier
The TB2173FTG is a stereo headphone amplifier IC that can accept two sources, developed for portable audio systems. It is particularly ideal for digital portable audio systems having built-in tuners.
Features
* * * * * * Accepts headphone amplifier inputs from two sources Selectable headphone amplifier output: Output coupling or OCL Incorporates beep circuit Incorporates power switch (controlled using port or command) Supports power muting (controlled using port or command) Features with single source only (tuner mode): * * * * Electronic volume Provides logic reset feature Low-frequency boost (with AGC) Weight: 0.05 g (typ.) Product indication: B2173G
Two port expansion circuits Operating supply voltage range: Ta = 25C VDD (opr) = 1.8 to 4.5 V VCC1 (opr) = 1.8 to 4.5 V VCC2 (opr) = 0.9 to 4.5 V Note: Use the device with VCC1 greater than or equal to VCC2.
* *
Handle the product with great care because its surge resistance is low. Ensure that the product is mounted correctly. Otherwise, the product or connected equipment may get damaged or degrade.
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Block Diagram (OCL Type)
Tuner IN VDD C-Cup OCL VOL PRE PRE VOL PRE C-SW GND IN2A OUTA INA INB OUTB IN2B IN1A IN1B GND 33 32 31 30 29 28 27 26 25 24 23 ON 34 MUTE SW ON 35 PW SW 36 RESET 37 CK 38 DATA 39 STB 40 VDD BIAS OUT 41 PRE NFA 42 PRE NFB 43 P1 44 P2 MODE SW VOL VOL ATT ATT 22 MODE TC 21 MUTE TC BEEP 20 BEEP IN 19 VCC1 18 BIAS IN 17 OUT ADJ 16 RF 15 BIAS OUT 14 LPF1 PORT 13 BST NF 12 LPF2 BIAS OUT Music IN
VDD
MCU
VOL, SW, PORT CONT
BIAS OUT
BST AGC 9 10 11 1 2 3 4 5 6 7 8 BEEP OUTA OUTC PW OUTB BEEP VCC2 BST AGC AGC BST OUTA GND OUTB TC DET IN OUT RL RL
Some of the functional blocks, circuits, or constants in the block diagram may be omitted or simplified for explanatory purpose.
BIAS
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Pin Functions
Pin voltages: Typical quiescent pin voltages in test circuit, VDD = VCC1 = 2.1 V, VCC2 = 1.2 V, Ta = 25C
The equivalent circuit diagrams are intended as an aid for describing circuits; they may be shown in abbreviated or simplified format.
Pin No. and Name BEEP OUTA Beep signal output 6 BEEP OUTB 1 20 6 Function Internal Equivalent Circuit Pin Voltage (V)
1
VCC1
20 BEEP IN
Beep signal input
VCC2 2 OUTA PWA
7
2 Power amplifier output 0.6
4 5 OUTB 15 k 10 k 10 k BIAS OUT
BST2 4 PW GND Power drive stage ground 11 0
10 k 30 k 7 VCC2 Power drive stage VCC 10 k 10 k 15 k PWB 5 11 BST OUT Boost amplifier output 0.6 BIAS OUT BIAS OUT 1.2
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Pin No. and Name Function Internal Equivalent Circuit Pin Voltage (V)
3
OUTC
Center amplifier output VCC2
33
0.6
BIAS OUT 33 C-SW Output application select switch VDD : OCL GND : Output coupling
3
0.6 PW GND
VCC1 8 8 BST TC Pin for reducing boost ON/OFF pop noise to BST SW to BST Amp.
VCC1
10 k
9
AGC DET Boost AGC detection 9
10 AGC IN
Boost AGC input The level of the input signal to the BST amplifier is varied according to the input level at this pin. Input impedance: 37 k (typ.)
5 k
BIAS OUT 0.6
10
32 k
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Pin No. and Name Function Internal Equivalent Circuit Pin Voltage (V)
BIAS OUT Boost filter pin 2 Cutoff frequency setting 2 for low-frequency boost 20 k
12 LPF2
0.6
12 k
13 BST NF
Boost amplifier NF
2 k
60 k 12 0.6
13
14 LPF1
Boost filter pin 1 Cutoff frequency setting 1 for low-frequency boost 29
50 k
BIAS OUT
BIAS OUT
0.6
20 k 10 pF 20 k to PWA 16 k
500
28 PRE INB
41 29 PRE INA 50 k BIAS OUT 20 k
28
5 k
Tuner mode: Power amplifier input
0.6
500
to PWB 20 k 10 pF
41 PRE NFA
Tuner mode: Power amplifier NF 42 5 k
16 k BIAS OUT 14
0.6
42 PRE NFB
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Pin No. and Name BIAS OUT Function Internal Equivalent Circuit Pin Voltage (V) 0.6
15
Bias circuit output
VCC2
16 RF
Ripple filter pin 16
30 k
1.1
17 OUT ADJ
Output DC voltage adjustment The output bias voltage is set to an optimum value according to the voltage applied to VCC2. Bias circuit input
94 k
VCC1 19
0.6
17
19 VCC1
VCC other 2 than VDD and VCC2
124 k
18 BIAS IN
18
15
0.6
2.1
21 MUTE TC Mute smoothing
VCC1 50 k 24 k
34
MUTE SW
Power mute switch Mute switch for power amplifier. When controlling MUTE SW using a port, specify "0" in a command. In that case, the IC operates as follows according to the port state: High: Mute ON Low: Mute OFF When controlling MUTE SW using a command, drive the port low.
21
34 to BUS
VCC1 22 Pin for reducing mode change 22 MODE TC pop noise to BUS 100 k
23 PRE GND
Ground for circuits other than logic and power drive stage
0
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Pin No. and Name Function Internal Equivalent Circuit Pin Voltage (V)
VCC1 24 IN1B
Input pin 1 Input pin with GV = 8dB
10 k 25
to ADD OUT
0.6
20 k
25 IN1A
BIAS OUT
BIAS OUT
26 IN2B
31 IN2A
Input pin 2 The input signal is supplied to the power amplifier through the electronic volume circuit and preamplifier.
1 k
31
30
0
27
VOL OUTB Volume output IN2 electronic volume output
20 k
0
30
VOL OUTA Logic ground Power switch IC ON/OFF switch. The switch does not, however, control the electronic volume circuit. When controlling PW SW using a port, specify "1" in a command. In that case, the IC operates as follows according to the port state: High: IC ON Low: IC OFF When controlling PW SW using a command, drive the port high. 0
32 GND
2 k 35 to BUS
35 PW SW
36 RESET
36
200 2.1
40 VDD
Logic power supply
50 k
Command reset This pin resets the bus data. High: No reset Low: Reset
40
VDD
2.1
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Pin No. and Name Function Internal Equivalent Circuit Pin Voltage (V)
37 CK
Clock input
VDD
38 DATA
Data input
37
200
39 STB
Strobe input
43 P1 to BUS
VDD
Port expansion
41
44 P2
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Functional Description
Bus Data Timing Charts
1. Serial Data Specification (initial data is not set.)
CK
DATA1
Ach
Bch
D1
D2
D3
D4
D5
D6
AD
DATA2
MODE
BST PW SW MUTE
P1
P2
NONE NONE
AD
STB l/fck twcH twcL
ts th tp twl
Characteristics Clock frequency High-level pulse width Low-level pulse width Data setup time Data hold time STB setup time STB pulse width
Symbol fck twcH twcL ts th tp twl1
Min 500 500 100 100 150 0.80
Typ.
Max 1.0
Unit MHz nSec nSec nSec nSec nSec Sec
(1)
Ach/Bch control data: 2 bits (Ach, Bch)
Bch 0 0 1 1 Operation No volume data set Volume data set for Ach only Volume data set for Bch only Volume data sets for both channels
Ach 0 1 0 1
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(2) Volume data: 6 bits (D1 to D6)
D1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 D2 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 D3 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 D4 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 D5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Volume Value 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 -34.3 -34.7 -35.1 -35.5 -36.0 -36.5 -37.0 -37.6 -38.2 -38.9 -39.6 -40.4 -41.5 -42.7 -43.3 -43.9 -44.7 -45.3 -46.1 -46.9 -47.7 -48.7 -49.9 -51.1 -52.5 -54.4 -56.1 -57.8 -60.0 -63.5 -68.9 -90.0 D1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 D2 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 D3 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 D4 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 D5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Volume Value 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 -0.1dB -2.1 -4.0 -5.5 -6.9 -8.2 -9.6 -10.9 -12.3 -13.6 -14.9 -16.3 -17.6 -19.0 -20.3 -22.1 -23.7 -25.1 -26.6 -27.9 -28.5 -29.1 -29.3 -29.8 -30.5 -30.8 -31.3 -31.7 -32.2 -32.8 -33.2 -33.9
(3)
Identification data: 1 bit (AD)
AD 0 1 Operation Recognized as DATA1 Recognized as DATA2
(4)
MODE SW data: 1 bit (MODE)
MODE 0 1 Operation Outputs the input signal components for IN2 (tuner mode). Outputs the input signal components for IN1 (music mode).
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(5) BST SW data: 1 bit (BST)
BST 0 1 Boost OFF Boost ON Operation
(6)
PW SW: 1 bit (PW SW) PW SW can be controlled using either a command or port, with the following truth table:
Command 0 (OFF) 1 (ON) 0 (OFF) 1 (ON) 0 (IC OFF) 0 (IC OFF) 0 (IC OFF) 1 (IC ON) Operation
Port 0 (OFF) 0 (OFF) 1 (ON) 1 (ON)
(7)
MUTE SW: 1 bit (MUTE) MUTE SW can be controlled using either a command or port, with the following truth table:
Command 0 (OFF) 1 (ON) 0 (OFF) 1 (ON) Operation 0 (MUTE OFF) 1 (MUTE ON) 1 (MUTE ON) 1 (MUTE ON)
Port 0 (OFF) 0 (OFF) 1 (ON) 1 (ON)
(8)
Power expansion: 1 bit (P1/P2)
P1/P2 0 1 Port Low Port High Operation
(9)
NONE An invalid bit
(10) Strobe data (STB)
STB 0 1 No data write Data write Operation
(11) Initial command upon command reset
DATA1 Initial value DATA2 Initial value Ach 1 MODE 0 Bch 1 BST 0 D1 1 PW SW 0 D2 1 MUTE 1 D3 1 P1 1 D4 1 P2 0 D5 1 Invalid D6 1 Invalid AD 0 AD
Bit 9 specifies the address. The initial address selected upon a reset is DATA1. Command data is maintained over a power cycle.
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2. IC Settings According to Supply Voltage
(1) Connecting power supplies The TB2173FTG supports an end product that uses either one or two batteries. Connect the power supply pins according to the number of batteries, as follows:
Microcontroller power supply Single battery Two batteries VDD, VCC1 VDD Battery power supply VCC2 VCC1, VCC2
Note: Use the device with VCC1 greater than or equal to VCC2. (2) Handling the OUT ADJ pin (pin 17) When using a single battery: Jumper OUT ADJ (pin 17) and BIAS IN (pin 18). When using two batteries: Leave OUT ADJ (pin 17) open.
Absolute Maximum Ratings (Ta = 25C)
Characteristics DC supply voltage Symbol VDD VCC Operating supply voltage Power block output current Power dissipation Operating temperature Storage temperature PD VDD VCC IO (Note 1) (Note 2) Topr Tstg 100 350 mW 1200 -25 to 75 -55 to 150 C C mA 4.5 V Rating 5.0 Unit V
Note 1: IC alone: When the IC is used at 25C or higher, reduce 2.8 mW per 1C. Note 2: When mounted on Toshiba standard board: When the IC is used at 25C or higher, reduce 9.6 mW per 1C. The absolute maximum ratings of a semiconductor device are a set of specified parameter values which must not be exceeded during operation, even for an instant. Exposure to conditions beyond those listed above may cause permanent damage to the device or affect device reliability, which could increase potential risks of personal injury due to IC blowup and/or burning. The equipment manufacturer should design so that no absolute maximum rating value is exceeded with respect to current, voltage, power dissipation, temperature, etc. Ensuring that the parameter values remain within these specified ranges during device operation will help to ensure that the integrity of the device is not compromised.
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Electrical Characteristics
(VDD = VCC1 = 2.1 V, VCC2 = 1.2 V, Rg = 600 , RL = 16 , f = 1 kHz, OCL mode, Ta = 25C, SW3: b, SW4: a, unless otherwise specified) Music mode Input: IN1, Output: OUT, SW1: a Tuner mode Input: PRE IN, Output: OUT, SW2: a Electronic volume Input: IN2, Output: VOL OUT
Characteristics Symbol ICCQ1 ICCQ2 ICCQ3 ICCQ4 Quiescent current ICCQ5 ICCQ6 ICCQ7 ICCQ8 ICCQ9 ICCQ10 Driving current Voltage gain Channel balance Output power Music mode Total harmonics distortion Output noise voltage Interchannel crosstalk Intermode crosstalk Ripple rejection ratio Mute attenuation Voltage gain Channel balance Output power Total harmonics distortion Output noise voltage Tuner mode Interchannel crosstalk Intermode crosstalk Ripple rejection ratio RR4 Mute attenuation ATT2 BST1 Boost BST2 BST3 ICCD1 ICCD2 GV1 CB1 Po1 THD1 Vno1 CT1 CT2 RR1 RR2 ATT1 GV2 CB2 Po2 THD2 Vno2 CT3 CT4 RR3 Test Condition Standby (VDD), SW4: b Standby (VCC1, VCC2) Mute ON: Music mode (VCC1), SW3: a Mute ON: Music mode (VCC2), SW3: a Mute ON: Music mode (VCC1), SW3: a Mute ON: Music mode (VCC2), SW3: a No signal: Music mode (VCC1) No signal: Music mode (VCC2) No signal: Music mode (VCC1) No signal: Music mode (VCC2) 0.1 mW2ch/16 (VCC1) 0.1 mW2ch/16 (VCC2) Vo = -20dBV Vo = -20dBV THD = 10% Po = 1 mW Rg = 600 , IHF-A, SW1: b Vo = -20dBV Vo = -20dBV, monitor: music fr = 100Hz, Vr = -20dBV, injected to VCC1 fr = 100Hz, Vr = -20dBV, injected to VCC2 Vo = -20dBV, SW3: b a Vo = -20dBV Vo = -20dBV THD = 10% Po = 1 mW Rg = 600 , IHF-A, SW2: b Vo = -20dBV Vo = -20dBV, monitor: tuner fr = 100 Hz, Vr = -20dBV, injected to VCC1 fr = 100 Hz, Vr = -20dBV, injected to VCC2 Vo = -20dBV f = 100 Hz, Vo = -20dBV f = 100 Hz, Vo = -30dBV f = 100 Hz, Vo = -50dBV Min 6.5 -1.5 7 -32 -45 -70 -60 -100 22.5 -1.5 7 -27 -39 -58 -43 -95 1.5 8.5 9.5 Typ. 0.6 0.3 0.6 0.3 0.9 0.7 0.9 0.8 1.0 4.5 8 0 9.5 0.2 -98 -38 -51 -85 -75 -120 24 0 9.5 0.2 -90 -33 -45 -73 -58 -115 4.5 11.5 12.5 Max 5 5 1.0 0.6 1.0 0.6 1.4 1.4 1.4 1.6 9.5 +1.5 0.5 -92 25.5 +1.5 0.5 -84 7.5 14.5 15.5 Unit A A mA mA mA mA mA mA mA mA mA mA dB dB mW % dBV dB dB dB dB dB dB dB mW % dBV dB dB dB dB dB dB dB dB
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Characteristics
Electronic volume
Symbol Vim ATT CB3 ATT fopr VIH VIL ILI IOL IOH VBEEP V35 (ON) V35 (OFF) V34(ON) V34 (OFF) THD = 1% Vo = -10dBV Vo = -10dBV Vo = -10dBV
Test Condition
Min 250 -3.0 -1.5 -80
Typ. 320 0 0 -90 -50
Max +3.0 +1.5 1 VDD VDD x 0.25 1 -45 VDD VDD x 0.2 VDD VDD x 0.2
Unit mVrms dB dB dB MHz V V A mA mA dBV V V V V
Maximum input level Attenuation error Channel balance Maximum attenuation Bus operating frequency High level
CK, DATA, STB, and RESET input pins CK, DATA, STB, and RESET input pins VIH: VDD, VIL: 0 V VOL: 0.3 V VOH: VDD-0.3 V SW3: a
Logic
Input voltage Low level Input leakage current Port expansion driving current
VDD x 0.75 0 1.0 -1.0 -55 VDD x 0.8 0 VDD x 0.8 0
Beep output level PW SW pin ON voltage PW SW pin OFF voltage MUTE SW pin ON voltage MUTE SW pin OFF voltage
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Test Circuit Diagram
Rg = 620
620 Rg = 620
Rg = 620
620 Rg = 620 1 F 25 IN1A 24 IN1B 1 F
620
(a) Rg = 620
50 k 0.47 F
0.47 F
0.47 F
1 F
VDD (a) SW3 (b) (a) SW4 (b)
33 C-SW 34 MUTE SW
32 GND
31 30 IN2A VOL OUTA
29 PRE INA
28 PRE INB
27 VOL OUTB
1 F
VDD
0.47 F 50 k
26 IN2B
Rg = 620
(a) (b) (b) SW2b SW2a
(a)
(a) (b) (b) SW1b SW1a
620 23 PRE GND MODE TC 22
0.47 F 0.22 F
35 PW SW
MUTE TC 21
36 RESET
BEEP 20
MCU 38 DATA BIAS IN 18
2.2 F
39 STB
TB2173FTG
OUT ADJ 17
BIAS OUT BIAS OUT
10 F
40 VDD 41 PRE NFA 42 PRE NFB 43 P1
RF 16
4.7 F 10 F 0.22 F 2.2 F BIAS OUT
BIAS OUT 15
4.7 F 4.7 F
LPF1 14
BST NF 13
44 P2 BEEP OUTA OUTA OUTC 1 2 3 PW GND 4 BEEP OUTB OUTB VCC2 5 6 7 10 F BST TC 8 1 F AGC DET 9 0.47 F AGC IN 10
LPF2 12 0.22 F BST OUT 11
1 F
RL
RL
15
10 F
37 CK
VCC1 19
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Example Application Circuit 1 (1.5-V OCL)
Tuner IN Music IN
1 F
1 F
1 F 25 IN1A
VDD
VDD
33 C-SW 34 MUTE SW
32 GND
31 30 IN2A VOL OUTA
29 PRE INA
28 PRE INB
27 VOL OUTB
26 IN2B
24 IN1B
1 F 23 PRE GND MODE TC 22
0.47 F
0.47 F
0.47 F 0.22 F
35 PW SW
MUTE TC 21
36 RESET
BEEP 20
MCU 38 DATA BIAS IN 18
2.2 F
39 STB
TB2173FTG
OUT ADJ 17
BIAS OUT BIAS OUT
10 F
40 VDD 41 PRE NFA 42 PRE NFB 43 P1
RF 16
4.7 F 10 F 0.22 F 2.2 F BIAS OUT
BIAS OUT 15
4.7 F 4.7 F
LPF1 14
BST NF 13
44 P2 BEEP OUTA OUTA OUTC 1 2 3 PW GND 4 BEEP OUTB OUTB VCC2 5 6 7 10 F BST TC 8 1 F AGC DET 9 0.47 F AGC IN 10
LPF2 12 0.22 F BST OUT 11
1 F
RL
RL
16
10 F
37 CK
VCC1 19
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Example Application Circuit 2 (3-V output coupling, without low-frequency boost)
Tuner IN Music IN
1 F
1 F
1 F 25 IN1A
VDD
33 C-SW 34 MUTE SW
32 GND
31 30 IN2A VOL OUTA
29 PRE INA
28 PRE INB
27 VOL OUTB
26 IN2B
24 IN1B
1 F 23 PRE GND MODE TC 22
0.47 F
0.47 F
0.47 F 0.22 F
35 PW SW
MUTE TC 21
36 RESET
BEEP 20
MCU 38 DATA BIAS IN 18
2.2 F
39 STB
TB2173FTG
OUT ADJ 17
BIAS OUT BIAS OUT
10 F
40 VDD 41 PRE NFA 42 PRE NFB 43 P1
RF 16
4.7 F 10 F
BIAS OUT 15
4.7 F 4.7 F
LPF1 14 BIAS OUT
BST NF 13
44 P2 BEEP OUTA OUTA OUTC 1 220 F 2 3 PW GND 4 BEEP OUTB OUTB VCC2 5 6 7 220 F 10 F BST TC 8 AGC DET 9 AGC IN 10
LPF2 12 BST OUT 11
BIAS OUT
RL
RL
17
10 F
37 CK
VCC1 19
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TB2173FTG
Package Dimensions
Weight: 0.05 g (typ.)
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RESTRICTIONS ON PRODUCT USE
* The information contained herein is subject to change without notice. 021023_D
060116EBA
* TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc. 021023_A * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. 021023_B * The products described in this document shall not be used or embedded to any downstream products of which manufacture, use and/or sale are prohibited under any applicable laws and regulations. 060106_Q * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of TOSHIBA or others. 021023_C * The products described in this document are subject to the foreign exchange and foreign trade laws. 021023_E
About solderability, following conditions were confirmed * Solderability (1) Use of Sn-37Pb solder Bath * solder bath temperature = 230C * dipping time = 5 seconds * the number of times = once * use of R-type flux (2) Use of Sn-3.0Ag-0.5Cu solder Bath * solder bath temperature = 245C * dipping time = 5 seconds * the number of times = once * use of R-type flux
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