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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
Sa, Sb: clamped input
S
c : non-clamped input
Output
Sa
Sb
Sc
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 = 25°C)
Parameter
Symbol Limits Unit
V
CC
9V
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.
Page 2
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Multimedia ICs BA7607 / BA7607F
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Equivalent circuits
R3
13.6k
R4
200
R5
33k
R17
12k
I1
0.6mA
I2
0.3mA
I4
0.6mA
I5
1mA
R7
100
R10
100
R11
100
R13
100
R14
100
R9
200
R6
20k
R12
200
R16
200
R15
200
R2
2.2k
R1
1k
Q4
Q5
Q7 Q8 Q10 Q11
Q12
Q9
Q3
Q2
Q1
OUT
V
CC
IN
Sc
R3
22k
R8
25k
R17
12k
I1
0.6mA
I2
0.3mA
I4
0.6mA
I5
1mA
R7
100
R10
100
R11
100
R13
100
R14
100
R9
200
R12
200
R16
200
R15
200
R2
4k
R1
1k
Q5
Q6
Q7 Q8 Q10 Q11
Q12
Q9
Q3
Q2
Q1
OUT
V
CC
IN
Sa, Sb
Page 3
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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 = 25°C and VCC = 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, VIN = 1V
P-P
C
T
— – 65 — dB f = 4.43MHz, VIN = 1V
P-P
G
f
– 3 0 1 dB 10MHz / 1MHz, VIN = 1V
P-P
Z
IN
14 20 26 kΩ
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.
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Multimedia ICs BA7607 / BA7607F
•
Reference date
Pin DC voltages (reference values)
Pin No. DC voltage DC voltagePin 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 — Ω
— 1.7M — Ω
—30— Ω
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 0.1µF to 1µF.
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Multimedia ICs BA7607 / BA7607F
•
Measurement circuit
Fig.1
16 15 14 13
12 11
10 9
1 2 3 4
5 6
7 8
VVV
VCC
VCC
S1b
47 / 16
223
V
OUTa
VOUTb
VOUTc
VCC
S3c
123
V
A
~
OSC
50Ω
105
105
321
V
S2c
~
OSC
50Ω
105
105
321
V
S2a
VCC
S3a
123
V
~
OSC
50Ω
105
105
321
V
S1a
~
OSC
50Ω
105
105
321
V
S1C
105
105
1
23
~
50Ω
V
V
S
2b S3b
105
105
1
23
1
23
~
OSC
V
50Ω
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Multimedia ICs BA7607 / BA7607F
•
Measurement conditions
S
1a
S
2a
S
3a
S
1b
S
2b
S
3b
S
1c
S
2c
S
3c
I
CC
222222222
V
om
V
om
V
om
V
om
V
om
V
om
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
G
V
G
V
G
V
G
V
G
V
G
V
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
f = 1MHz,
V = 1V
P-P
C
T
C
T
C
T
C
T
C
T
C
T
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
f = 4.43MHz,
V = 1V
P-P
G
f
G
f
G
f
G
f
G
f
G
f
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
V = 1V
P-P
V
TH
V
TH
V
TH
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
2
2
2
2
2
2
2
2
2
2
2
2
1
2
2
1
2
3
THD
THD22
2
2
2
2
2
2
2
2
2
2
3
2
2
3
2
3
f = 1kHz,
THD = 0.5%
I
N1a
I
N2a
I
N1b
I
N2b
I
N1c
I
N2c
I
N1a
I
N2a
I
N1b
I
N2b
I
N1c
I
N2c
I
N1a
I
N2a
I
N1b
I
N2b
I
N1c
I
N2c
I
N1a
I
N2a
I
N1b
I
N2b
I
N1c
I
N2c
CTL a
CTL b
CTL c
I
N1 c
IN2 c
IN1 c
IN2 c
f = 10M / f = 1M,
Z
IN
Z
IN
Note 1
Note 2
Note 3
Note 4
Note 5
Note 6
Note 7
Parameter
Symbol
Switch settings
Measurement
method
Current dissipation
Maximum
output level
Voltage gain
Interchannel
crosstalk
Frequency
characteristic
CTL pin
switching level
Input
impedance
Total-harmonic
distortion
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 G
V
= 20 log (VOUT / VIN).
Note 3: Input a 1V
P-P, 4.43MHz sine wave. The interchannel crosstalk is given by C
T
= 20 log (VOUT / VIN).
Note 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)).
Note 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 20mVP-P.
Note 6: Measure the input pin voltage V
IN
50
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].
Note 7: Input a 1V
P-P, 1kHz sine wave and measure the total-harmonic distortion of the output using a total-harmonic distortion meter.
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Multimedia ICs BA7607 / BA7607F
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External dimensions (Units: mm)
SOP16
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
DIP16
BA7607 BA7607F
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
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