Page 1
1
Multimedia ICs
Video signal switcher
BA7602 / BA7602F
The BA7602 and BA7602F are switching ICs developed for use in VCRs. Each contains three two-channel analog
multiplexers. They feature a large dynamic range, and wide operating frequency range, and are suitable for switching
audio and video signals.
•
Applications
Video cassette recorders and televisions
•
Features
1) Three 2-input / 1-output switches.
2) 5V power supply.
3) Low power consumption (70mW Typ.).
4) Excellent frequency characteristics
(10MHz, 0dB Typ.).
5) Wide dynamic range (3.1V
P-P Typ.).
6) High input impedance (20kΩ Typ.).
7) Fast switching speed (50ns Typ.).
•
Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol Unit
V
CC
9V
mV
Topr °C
Tstg – 55 ~ + 125 °C
500
∗
– 40 ~ + 85
Limits
Pd
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
∗
Reduced by 5.0mW for each increase in Ta of 1°C over 25°C.
•
Block diagram
1IN2a
2CTLa
3OUTa
4GND
5OUTb
6OUTc
7CTLc
8IN2c
16 IN1a
15 GND
14 IN2b
13 VCC
12 CTLb
11 IN1b
10 GND
9IN1c
Sa
Sb
Sc
CTL Output
LIN2
HIN1
Page 2
2
Multimedia ICs BA7602 / BA7602F
•
Equivalent circuits
Sa, Sb, Sc
R3
8.4k
R4
200
R6
20k
R5
33k
R8
25k
I1
0.6mA
I2
0.3mA
I3
0.5mA
I4
0.6mA
I5
1mA
R7
100
R10
100
R11
100
R13
100
R14
100
R9
200
R12
200
R16
200
R15
200
R2
9.4k
R1
1k
Q4
Q5
Q6
Q7 Q8 Q10 Q11
Q12
Q9
Q3
Q2
Q1
OUT
V
CC
IN
R3
400
R4
400
R5
25k
R2
200
Q3
22
Q1
Q5
Q6
Q2 Q4
CTL
R6
25k
R1
50k
V
CC
I2
0.6mA
I1
0.25mA
I3
0.06mA
CTL
Page 3
3
Multimedia ICs BA7602 / BA7602F
•
Electrical characteristics (unless otherwise noted, Ta = 25°C, VCC = 5.0V)
Parameter Symbol Min. Typ. Max. Unit Conditions
V
CC 4.5 5.0 5.5 V —
I
CC — 14.0 20.5 mA —
2.8 3.1 — V
P-P
GV – 0.5 0
C
T — – 65 —
G
f – 3 0 dB
Z
IN 14 20 26 kΩ —
V
TH 20 2.5 3.0 V —
dB
dB
f = 1kHz, THD = 0.5%
f = 1MHz, V
IN = 1VP-P
f = 4.43MHz, VIN = 1VP-P
10MHz / 1MHz, VIN = 1VP-P
0.5
1
V
om
Operating voltage
Supply current
Maximum output level
Voltage gain
Interchannel crosstalk
Frequency characteristic
Input impedance
CTL pin switch level
Note: Refer to the measurement circuit given in Fig. 1.
•
Reference data
Pin DC voltages (reference values)
Pin No. DC voltage DC voltagePin No.
1 3.27 9 3.27
2 4.91 10 0
3 1.84 11 3.27
4 0 12 4.91
5 1.84 13 5.00
6 1.84 14 3.27
7 4.91 15 0
8 3.27 16 3.27
Units: Vdc
Parameter
—
20k
— Ω
—30— Ω
Min. Typ. Max. Unit
The input coupling capacitor values should be 0.1µF to 1µF.
Input impedance (no clamp)
Output impedance
Electrical characteristics
Page 4
4
Multimedia ICs BA7602 / BA7602F
•
Measurement circuit
910111213141516
87654321
V
~
V
V
VCC
VCC
S2b S3b
SIb
47 / 16 223
OSC
VCC
V
OUTa
V
OUTbVOUTc
VCC
OSC
OSC
OSC
50Ω 50Ω
11223
3
123
105
105
105
S1C
S2C
S3C
S3a
S2a
Sia
50Ω
50Ω
50Ω
50Ω
105
105
105
105
105
105
OSC
105
105
123
12 3
123
1123
23
123
105
V
V
~
~
~
V
VV
V
V
V
A
~
~
V
Fig.1
Page 5
5
Multimedia ICs BA7602 / BA7602F
S1a S2a S3a S1b S2b S3b S1C S2C S3C
ICC 222222222
I
N1a
IN2a
IN1b
IN2b
IN1c
IN2c
3
2
2
2
2
2
2
3
2
2
2
2
2
3
2
2
2
2
2
2
3
2
2
2
2
2
2
3
2
2
2
2
2
3
2
2
2
2
2
2
3
2
2
2
2
2
2
3
2
2
2
2
2
3
I
N1a
IN2a
IN1b
IN2b
IN1c
IN2c
GV
GV
GV
GV
GV
GV
3
2
2
2
2
2
2
3
2
2
2
2
2
3
2
2
2
2
2
2
3
2
2
2
2
2
2
3
2
2
2
2
2
3
2
2
2
2
2
2
3
2
2
2
2
2
2
3
2
2
2
2
2
3
I
N1a
IN2a
IN1b
IN2b
IN1c
IN2c
CT
CT
CT
CT
CT
CT
2
3
2
2
2
2
3
2
2
2
2
2
2
3
2
2
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
3
2
2
2
2
3
2
2
2
2
2
2
3
I
N1a
IN2a
IN1b
IN2b
IN1c
IN2c
Gf
Gf
Gf
Gf
Gf
Gf
3
2
2
2
2
2
2
3
2
2
2
2
2
3
2
2
2
2
2
2
3
2
2
2
2
2
2
3
2
2
2
2
2
3
2
2
2
2
2
2
3
2
2
2
2
2
2
3
2
2
2
2
2
3
CTLa
CTLb
CTLc
V
TH
VTH
VTH
3
2
2
2
2
2
1
2
2
2
3
2
2
2
2
2
1
2
2
2
3
2
2
2
2
2
1
I
N1a
IN2a
IN1b
IN2b
IN1c
IN2c
ZIN
ZIN
ZIN
ZIN
ZIN
ZIN
1
2
2
2
2
2
2
1
2
2
2
2
2
3
2
2
2
2
2
2
1
2
2
2
2
2
2
1
2
2
2
2
2
3
2
2
2
2
2
2
1
2
2
2
2
2
2
1
2
2
2
2
2
3
V
Om
VOm
VOm
VOm
VOm
VOm
f = 1kHz
THD = 0.5%
f = 1kHz
V = 1V
P-P
f = 4.43MHz
V = 1V
PP
f = 10M / f = 1M
V = 1V
PP
Note 5
Note 6
Note 1
Note 2
Note 3
Note 4
Parameter
Symbol
Switch settings
Measurement
method
Current dissipation
Maximum
output level
Voltage gain
Interchannel
crosstalk
Frequency
characteristic
CTL pin
switching level
Input
impedance
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 V
om (VP-P).
Note 2: Input a 1V
P-P, 1MHz sine wave. The voltage gain is given by GV = 20 log (VOUT / VIN).
Note 3: Input a 1V
P-P, 4.43MHz sine wave. The interchannel crosstalk is given by CT = 20 log (VOUT / VIN).
Note 4: Input 1V
P-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 1V
P-P, 1MHz sine wave. Reduce the CTL pin voltage from VCC.
The CTL pin switching level (V
TH) is the CTL pin voltage at which the Vout level drops below 20mVP-P.
Note 6: Measure the input pin voltage V
IN50 when a current of DC50µA is flowing into the input pin. Measure the input pin open-circuit voltage.
The input impedance is given by Z = (V
IN50 - VIN0) / 50 × 10
-6
[Ω].
•
Measurment conditions
Page 6
6
Multimedia ICs BA7602 / BA7602F
DIP16 SOP16
BA7602 BA7602F
0.51Min.
0.3
± 0.1
916
81
6.5 ± 0.3
3.2 ± 0.2
4.25 ± 0.3
0.5 ± 0.1
19.4 ± 0.3
2.54
0° ~ 15°
7.62
0.4 ± 0.11.27
0.15
0.15 ± 0.1
0.3Min.
4.4 ± 0.2
6.2 ± 0.3
0.11
1.5 ± 0.1
1
16
10.0 ± 0.2
8
9
•
External dimensions (Units: mm)
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