1
Multimedia ICs
Video signal switcher
BA7611AN / BA7611AF
The BA7611AN and BA7611AF are a three-channel analog multiplexers with built-in mute and a 6dB amplifier. The
ICs designed for use in video cassette recorders. It features a large dynamic range and wide operating frequency
range, and have sync-tip clamp inputs whitch are ideal for switching video signals.
Applications
Video cassette recorders and televisions
Features
1) 3-input / 1-output switches.
2) Built-in 6dB amplifier.
3) Built-in mute.
4) Sync-tip clamp inputs.
5) Wide operating supply voltage range
(4.5V to 13.0V).
6) Low power consumption (50mW Typ.).
7) Excellent frequency characteristics
(10MHz, 0dB Typ.).
8) Wide dynamic range (3.5V
P-P
Typ.).
9) Low interchannel crosstalk
( 65dB Typ., f = 4.43MHz).
Block diagram
Truth table
1
MUTE
6dB Amp
2
3
4
5
6
7
8
LOGIC
IN1
CTLA
CTLB
IN2
GND
IN3
V
CC
V
OUT
BA7611AN
1
2
3
4
8
7
6
5
IN1
CTLA
CTLB
IN2
GND
IN3
V
CC
V
OUT
BA7611AF
MUTE
LOGIC
6dB
CTL - A
CTL - B
OUT
L (OPEN)
L (OPEN)
IN1
L (OPEN)
H
IN2
H
L (OPEN)
IN3
H
H
MUTE
2
Multimedia ICs
BA7611AN / BA7611AF
Absolute maximum ratings (Ta = 25C)
Parameter
Symbol
Limits
Unit
V
CC
13.5
V
Pd
900
1
(SIP8) / 550
2
(SOP8)
mW
Topr
25 ~ + 75
C
Tstg
55 ~ + 125
C
1 Reduced by 9mW for each increase in Ta of 1
C over 25
C.
2 Reduced by 5.5mW for each increase in Ta of 1
C over 25
C.
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
Equivalent circuits
100
1.2
A
100
A
Vcc
IN
CLAMP INPUT
100
50k
20k
34k
Vcc
CTLa / b
Note:
Input bias current 1
A [Typ.]
Output impedance 20
[Typ.]
CTLa / CTLb
2mA
Vcc
OUT
OUTPUT
3
Multimedia ICs
BA7611AN / BA7611AF
Electrical characteristics (unless otherwise noted, Ta = 25C and V
CC
= 5V)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Measurement Circuit
V
CC
4.5
--
13.0
V
Fig.4
I
CC
--
10.5
15.5
mA
Fig.4
V
om
3.0
3.5
--
V
P-P
--
--
--
--
Fig.4
G
V
dB
f = 1MHz, V
IN
= 1.0V
P-P
f = 1kHz, THD
= 0.5%
Fig.4
C
T
65
dB
Fig.4
C
f
3.0
0
dB
Fig.4
V
TH-A
1.0
2.0
3.0
V
Fig.4
V
TH-B
1.0
2.0
3.0
V
Fig.4
f = 4.43MHz, V
IN
= 1.0V
P-P
f = 10MHz / 1MHz, V
IN
= 1.0V
P-P
1.0
6.0
6.5
5.5
--
--
Operating voltage
Supply current
Maximum output level
Voltage gain
Interchannel crosstalk
Frequency characteristic
CTL pin switch level A
CTL pin switch level B
Not designed for radiation resistance.
Electrical characteristic curves
OUTPUT VOLTAGE: V
OUT
(V
P-P
)
INPUT VOLTAGE: V
IN
(V
P-P
)
2
1
0
3
4
5
7
8
9
10
6
1
0
2
3
4
5
6
V
CC
=
12V
V
CC
=
9V
V
CC
=
5V
Fig. 1 V
IN
vs. V
OUT
(f = 1kHz)
Measurement circuit
1
MUTE
6dB Amp
2
3
4
5
6
7
8
Logic
1
2
1
F
0.022
F
47
F
OSC
50
1
F
SW
4
V
CC
1
2 3
SW
1
1
2
1
F
OSC
50
1
F
SW
2
1
2
+
1
F
OSC
50
1
F
SW
3
SW
5
V
CC
V
CC
1
2 3
P P
V
Fig. 4
A
VOLTAGE GAIN: C
f
(dB)
FREQUENCY: f (Hz)
100k
300k
1M
3M
10M
30M
100M
2
0
2
4
6
Fig. 2 Frequency characteristics
CROSSTALK: C
T
(dB)
FREQUENCY: f (Hz)
100k
300k
1M
3M
10M
30M
100M
60
40
20
0
20
80
Fig. 3 Interchannel crosstalk
4
Multimedia ICs
BA7611AN / BA7611AF
Measurement conditions
SW
1
SW
2
SW
3
SW
4
SW
5
I
CC
2
2
2
2
2
I
N1
I
N2
I
N3
V
om
V
om
V
om
1
2
2
2
1
2
2
2
1
3
3
2
3
2
3
f = 1kHz,
THD = 0.5%
I
N1
I
N2
I
N3
G
V
G
V
G
V
1
2
2
2
1
2
2
2
1
3
3
2
3
2
3
f = 1MHz,
V = 1V
P-P
I
N1
I
N2
I
N1
I
N3
I
N1
MUTE
I
N2
I
N3
I
N2
MUTE
I
N3
MUTE
C
T
C
T
C
T
C
T
C
T
C
T
1
1
1
2
2
2
2
2
2
1
1
2
2
2
2
2
2
1
3
2
2
2
2
2
2
3
2
3
2
2
f = 4.43MHz
V = 1V
P-P
I
N1
I
N2
I
N3
G
f
G
f
G
f
1
2
2
2
1
2
2
2
1
3
3
2
3
2
3
V = 1V
P-P
CTLa
CTLb
V
TH
V
TH
2
2
2
1
1
2
1
3
3
1
f = 10MHz
f = 1MHz
Parameter
Symbol
Switch settings
Measurement
method
Current dissipation
Ammeter
Maximum
output level
Voltage gain
2
Interchannel
crosstalk
3
Frequency
characteristic
4
CTL pin
switching level
5
1
1: Connect a distortion meter to the output, and input a f = 1kHz sine wave. Adjust the input level until the output distortion is 0.5%.
This output voltage at this time is the maximum output level V
om
(V
P-P
).
2: Input a 1V
P-P
, 1MHz sine wave. The voltage gain is given by G
V
= 20 log (V
OUT
/ V
IN
).
3: Input a 1V
P-P
, 4.43MHz sine wave. The interchannel crosstalk is given by C
T
= 20 log (V
OUT
/ V
IN
).
4: Input 1V
P-P
, 1MHz and 10MHz sine waves. The frequency characteristic is given by G
f
= 20 log (V
OUT
(f = 10MHz) / V
OUT
(f = 1MHz)).
5: Input a 1V
P-P
, 1MHz sine wave. Reduce the CTL pin voltage from V
CC
.
The CTL pin switching level (V
TH
) is the CTL pin voltage at which the V
OUT
level drops below 20mV
P-P
.
External dimensions (Units: mm)
SIP8
BA7611AN
BA7611AF
SOP8
10.5
0.5
1
8
2.54
3.5
0.5
1.3
0.8
0.6
0.3
0.1
2.8
0.2
19.3
0.2
1.2
5.8
0.2
0.4
0.1
1.27
0.15
0.3Min.
0.15
0.1
0.11
6.2
0.3
4.4
0.2
5.0
0.2
8
5
4
1
1.5
0.1
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