1
Multimedia ICs
Video switch for CANAL-Plus decoder
BA7630S / BA7630F
The BA7630S and BA7630F are decoder switching ICs for the scrambled broadcasts in France. The ICs include a 3-
input multiplexer, 2-input multiplexers with 6dB amplifiers, and a 9-bit serial-to-parallel converter.
These ICs greatly simplify decoder switching, and can be connected to a control microprocessor using just two lines.
Applications
Video cassette recorders
Features
1) All the switching functions required for SECAM
CANAL plus decoder integrated onto one chip.
2) Built-in 9-bit serial-to-parallel converter for decoder
and TV control reduces number of microprocessor
wiring connections required.
3) Inputs have a sync-tip clamp.
4) The switch section can be used independently.
5) Low power consumption off a 5V supply.
Absolute maximum ratings (Ta = 25C)
Parameter
Symbol
Limits
Unit
V
CC
9
1
V
BA7630S
500
2
mW
BA7630F
600
3
Topr
25 ~ + 70
C
Tstg
55 ~ + 125
C
Pd
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
1 13V for switches 1 to 9.
2 Reduced by 5.0mW for each increase in Ta of 1
C over 25
C.
3 Reduced by 6.0mW for each increase in Ta of 1
C over 25
C.
Recommended operating conditions (Ta = 25C)
Parameter
Symbol
Min.
Typ.
Max.
Unit
V
CC
4.5
5.0
5.5
V
Power supply voltage
3
Multimedia ICs
BA7630S / BA7630F
Electrical characteristics (unless otherwise noted Ta = 25C and V
CC
= 5.0V)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Measurement
Circuit
I
CC
--
--
28
40
mA
Fig.1
V
om
2.5
2.8
--
V
P-P
f = 1kHz, THD = 0.5%
Fig.1
G
V1
0.5
0
0.5
dB
f = 1MHz, V
IN
= 1.0V
P-P
G
V2
5.5
6.0
6.5
dB
f = 1MHz, V
IN
= 1.0V
P-P
G
f
4.0
1.5
+ 1.0
dB
10MHz / 1MHz
V
IN
= 1.0V
P-P
C
TM
--
60
45
dB
f = 4.43MHz
V
IN
= 1.0
P-P
V
TH1 ~ 4
1.0
2.0
3.0
V
V
IH
3.0
--
--
--
--
V
Fig.3
V
IL
--
--
1.0
V
I
IH
I
IL
--
--
--
2
10
A
Fig.2
80
100
150
--
A
I
QH1 ~ 4
150
230
350
A
V
CC
= 12V
I
QH5 ~ 9
--
0
50
A
V
CC
= 12V
V
QL
--
0.1
0.5
V
I
CC
= 2mA
Fig.1
f
Max.
250
500
--
--
kHz
t
su
--
--
0.1
1.0
s
Supply current
Analog
Maximum output level
Voltage gain 1
Voltage gain 2
Frequency characteristic
Interchannel crosstalk
Digital
"H" input voltage
"L" input voltage
"H" input current
"L" input current
"H" output leakage current 1
"H" output leakage current 2
"L" output voltage
Maximum clock frequency
Setup time
SW
1
~ SW
4
switch level
5
Multimedia ICs
BA7630S / BA7630F
BA7630S
12
13
BUFF
BIAS
BUFF
BUFF
LOGIC
6dB
AMP
6dB
AMP
CONTROL
LOGIC
SHIFT
REGISTER
SW
4
SW
3
SW
12
SW
2
SW
1
SW
12
SW
4
SW
3
SW
2
SW
1
SW
0
A
3
12V
V
1
LATCHES
V
A
14
15
16
17
18
19
20
21
22
11
10
9
8
7
6
5
4
3
2
1
Output
Measurement Circuit
Output
Measurement Circuit
Output
Measurement Circuit
SW
1
A
1
V
CC
= 5.0V
A
2
5.0V
Input
Measurement
Circuit
Output
Measurement
Circuit
47
V
A
Output
Measurement Circuit
Output
Measurement Circuit
Output
Measurement Circuit
Output
Measurement Circuit
Input
Measurement Circuit
Input
Measurement Circuit
Output
Measurement Circuit
Fig.2
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