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Multimedia ICs
Video signal switcher
BA7607 / BA7607F
The BA7607and BA7607F are switching ICs developed for use in VCRs. Each contains three two-channel analog multiplexers. As two of the switches have sync-tip clamp inputs and the other one has non-clamped inputs these ICs are ideal for switching audio, video and chroma signals.
*Applications recorders and televisions Video cassette *Features / 1-output switches (two with sync-tip 1) Three 2-input
clamped inputs, the other one non-clamped). 2) 5V power supply. 3) Low power consumption (62.5mW Typ.). 4) Excellent frequency characteristics (10MHz, 0dB Typ.). 5) Wide dynamic range (clamped input: 2.9VP-P Typ., non-clamped input: 3.0VP-P Typ.). 6) Fast switching speed (50ns Typ.).
*Block diagram
IN2 a CTL A OUT a GND OUT b OUT c CTL C CTL L H Output IN2 IN1 IN2 c 1 2 3 4 5 6 7 8 Sc Sb Sa 16 IN1 a 15 GND 14 IN2 b 13 VCC 12 CTL B 11 IN1 b 10 GND 9 IN1 c
Sa, Sb: clamped input Sc : non-clamped input
*Absolute maximum ratings (Ta = 25C)
Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits 9 500 - 40 ~ + 85 - 55 ~ + 125 Unit V mW C C
Reduced by 5.0mW for each increase in Ta of 1C over 25C.
1
Multimedia ICs
BA7607 / BA7607F
*Equivalent circuits
Sa, Sb
IN VCC R3 22k Q5 R2 4k R7 100 Q9 Q6 I2 0.3mA R12 200 R16 200
R9 200
Q7
Q8
Q10 Q11
R15 200
Q3 R10 100 Q2 Q12 Q1 OUT R1 1k R8 25k I1 0.6mA R17 12k I4 0.6mA I5 1mA R11 100 R13 100 R14 100
Sc
IN
VCC R3 13.6k I2 0.3mA Q5 R7 100 Q9 R12 200 R16 200
R4 200
R2 2.2k
Q4
R6 20k
R9 200
Q7
Q8
Q10 Q11
R15 200
Q3 R10 100 Q2 Q12 Q1 OUT R1 1k R5 33k I1 0.6mA R17 12k I4 0.6mA I5 1mA R11 100 R13 100 R14 100
2
Multimedia ICs
CTL
BA7607 / BA7607F
VCC R1 50k I2 0.6mA Q1 Q6 R6 25k
R2 200 CTL
Q3
Q5
Q2
Q4
R5 25k
I1 0.25mA
R3 400
R4 400
I3 0.06mA
*Electrical characteristics (unless otherwise noted, Ta = 25C and VCC = 5V)
Parameter Operating voltage Supply current Maximum output level 1 Maximum output level 2 Voltage gain Interchannel crosstalk Frequency characteristic Input impedance Total-harmonic distortion CTL pin switch level Symbol VCC ICC Vom Vom GV CT Gf ZIN THD VTH Min. 4.5 -- 2.6 2.7 - 0.5 -- -3 14 -- 2.0 Typ. 5.0 12.5 2.9 3.0 0 - 65 0 20 0.007 2.5 Max. 5.5 17.0 -- -- 0.5 -- 1 26 -- 3.0 Unit V mA VP-P VP-P dB dB dB k % V Conditions -- -- f = 1kHz, THD = 0.5%, clamped input f = 1kHz, THD = 0.5%, non-clamped input f = 1MHz, VIN = 1VP-P f = 4.43MHz, VIN = 1VP-P 10MHz / 1MHz, VIN = 1VP-P non-clamped input f = 1kHz, 1VP-P, non-clamped input --
Note: Refer to the measurement circuit given in Fig. 1.
3
Multimedia ICs
BA7607 / BA7607F
*Reference date(reference values) Pin DC voltages
Units: Vdc Pin No. 1 2 3 4 5 6 7 8 DC voltage 2.05 4.91 0.65 0 0.65 1.76 4.91 2.48 Pin No. 9 10 11 12 13 14 15 16 DC voltage 2.48 0 2.05 4.91 5.00 2.05 0 2.05
Electrical characteristics
Parameter Sync tip clamp level Input impedance (no clamp) Input impedance (with clamp) Output impedance Min. 0.49 -- -- -- Typ. 0.65 20k 1.7M 30 Max. 0.80 -- -- -- Unit Vdc
The input coupling capacitor values should be 0.1F to 1F.
4
Multimedia ICs
BA7607 / BA7607F
*Measurement circuit
~
OSC V 105 12 3 105 V 1 2 3 50 VCC
~
V 105 12 3
50
105
223 47 / 16 VCC A
S2b
S3b
S1b
16
15
14
13
12
11
10
9
S1a
S1C
12 105 V OSC
3
105 1 2 VOUTa 3 4 5 6 7 8 V OSC VOUTb VOUTc V V V
12 105
3
105
~
50
~
50
S2a
S3a
S3c
S2c
12 105 V OSC
3
105 V
12
3 V
12
3 V OSC
12 105
3
105
~
50
VCC
VCC
~
50
Fig.1
5
Multimedia ICs
BA7607 / BA7607F
*Measurement conditions
Parameter Current dissipation IN1a IN2a IN1b IN2b IN1c IN2c IN1a IN2a IN1b IN2b IN1c IN2c IN1a IN2a IN1b IN2b IN1c IN2c IN1a IN2a IN1b IN2b IN1c IN2c CTL a CTL b CTL c IN1 c IN2 c IN1 c IN2 c Symbol S1a ICC Vom Vom Vom Vom Vom Vom GV GV GV GV GV GV CT CT CT CT CT CT Gf Gf Gf Gf Gf Gf VTH VTH VTH ZIN ZIN THD THD 2 3 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 2 S2a 2 2 3 2 2 2 2 2 3 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 2 2 2 2 2 2 S3a 2 2 3 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 1 2 2 2 2 2 2 Switch settings S1b 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 3 2 2 2 2 3 2 2 2 2 2 S2b 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 2 2 2 2 2 S3b 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 1 2 2 2 2 2 S1c 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 3 2 2 2 3 1 2 3 2 S2c 2 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 3 2 2 2 2 2 2 3 2 2 2 2 1 2 3 S3c 2 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 3 2 2 2 2 2 3 2 2 1 2 3 2 3 Measurement method
Maximum output level
f = 1kHz, THD = 0.5% Note 1
Voltage gain
f = 1MHz, V = 1VP-P Note 2
Interchannel crosstalk
f = 4.43MHz, V = 1VP-P Note 3
Frequency characteristic
f = 10M / f = 1M, V = 1VP-P Note 4
CTL pin switching level Input impedance Total-harmonic distortion
Note 5
Note 6 Note 7
Note 1: Connect a distortion meter to the output, and input a f = 1kHz sine wave. Adjust the output level until the output distortion is 0.5%. This output voltage at this time is the maximum output level Vom (VP-P). Note 2: Input a 1VP-P, 1MHz sine wave. The voltage gain is given by GV = 20 log (VOUT / VIN). Note 3: Input a 1VP-P, 4.43MHz sine wave. The interchannel crosstalk is given by CT = 20 log (VOUT / VIN). Note 4: Input 1VP-P, 1MHz and 10MHz sine waves. The frequency characteristic is given by Gf = 20 log (VOUT (f = 10MHz) / VOUT (f = 1MHz)). Note 5: Input a 1VP-P, 1MHz sine wave. Reduce the CTL pin voltage from VCC. The CTL pin switching level (VTH) is the CTL pin voltage at which the VOUT level drops below 20mVP-P. Note 6: Measure the input pin voltage VIN50 when a current of DC50A is flowing into the input pin. Measure the input pin open-circuit voltage. The input impedance is given by Z = (VIN50 - VIN0) / 50 x 10-6 []. Note 7: Input a 1VP-P, 1kHz sine wave and measure the total-harmonic distortion of the output using a total-harmonic distortion meter.
6
Multimedia ICs
BA7607 / BA7607F
*External dimensions (Units: mm)
BA7607 BA7607F
19.4 0.3 16 9
6.5 0.3
10.0 0.2 16 6.2 0.3 4.4 0.2 9
0.51Min.
1
8 7.62
3.2 0.2 4.25 0.3
1 1.5 0.1
8
0.11
0.3 0.1
1.27
2.54
0.5 0.1
0.4 0.1
0.3Min. 0.15
0 ~ 15
DIP16
SOP16
0.15 0.1
7

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