1
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.
Block diagram
S
a
, S
b
: clamped input
S
c
: non-clamped input
Output
S
a
S
b
S
c
1
IN2 a
2
CTL A
3
OUT a
4
GND
5
OUT b
6
OUT c
7
CTL C
8
IN2 c
16 IN1 a
15 GND
14 IN2 b
13 V
CC
12 CTL B
11 IN1 b
10 GND
9
IN1 c
CTL
L
IN2
H
IN1
Applications
Video cassette recorders and televisions
Features
1) Three 2-input / 1-output switches (two with sync-tip
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: 2.9V
P-P
Typ.,
non-clamped input: 3.0V
P-P
Typ.).
6) Fast switching speed (50ns Typ.).
Absolute maximum ratings (Ta = 25C)
Parameter
Symbol
Limits
Unit
V
CC
9
V
Pd
500
mW
Topr
40 ~ + 85
C
Tstg
55 ~ + 125
C
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
Reduced by 5.0mW for each increase in Ta of 1
C over 25
C.
3
Multimedia ICs
BA7607 / BA7607F
R3
400
R4
400
R5
25k
R2
200
Q3
Q1
Q5
Q6
Q2
Q4
CTL
R6
25k
R1
50k
V
CC
I2
0.6mA
I1
0.25mA
I3
0.06mA
CTL
Electrical characteristics (unless otherwise noted, Ta = 25C and V
CC
= 5V)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
V
CC
4.5
5.0
5.5
V
--
I
CC
--
12.5
17.0
mA
--
V
om
2.6
2.9
--
V
P-P
V
om
2.7
3.0
--
V
P-P
G
V
0.5
0
0.5
dB
f = 1MHz, V
IN
= 1V
P-P
C
T
--
65
--
dB
f = 4.43MHz, V
IN
= 1V
P-P
G
f
3
0
1
dB
10MHz / 1MHz, V
IN
= 1V
P-P
Z
IN
14
20
26
k
THD
--
0.007
--
%
f = 1kHz, 1V
P-P
V
TH
2.0
2.5
3.0
V
--
f = 1kHz, THD = 0.5%, clamped input
f = 1kHz, THD = 0.5%, non-clamped input
non-clamped input
, non-clamped input
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
Note: Refer to the measurement circuit given in Fig. 1.
4
Multimedia ICs
BA7607 / BA7607F
Reference date
Pin DC voltages (reference values)
Pin No.
DC voltage
DC voltage
Pin No.
1
2.05
9
2.48
2
4.91
10
0
3
0.65
11
2.05
4
0
12
4.91
5
0.65
13
5.00
6
1.76
14
2.05
7
4.91
15
0
8
2.48
16
2.05
Units: Vdc
Electrical characteristics
Parameter
0.49
0.65
0.80
Vdc
--
20k
--
--
1.7M
--
--
30
--
Min.
Typ.
Max.
Unit
Sync tip clamp level
Input impedance (no clamp)
Input impedance (with clamp)
Output impedance
The input coupling capacitor values should be 0.1
F to 1
F.