Rohm BA7607 Video signal switcher Datasheet

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.
Applications
•Video
cassette recorders and televisions
•1)Features
Three 2-input / 1-output switches (two with sync-tip
4) Excellent frequency characteristics
(10MHz, 0dB Typ.).
5) Wide dynamic range (clamped input: 2.9VP-P Typ.,
non-clamped input: 3.0VP-P Typ.).
6) Fast switching speed (50ns Typ.).
clamped inputs, the other one non-clamped).
2) 5V power supply.
3) Low power consumption (62.5mW Typ.).
•Block diagram
CTL
Output
L
IN2
H
IN1
IN2 a
1
CTL A
2
OUT a
3
GND
4
OUT b
5
OUT c
6
CTL C
7
IN2 c
8
16 IN1 a
Sa
15 GND
14 IN2 b
13 VCC
Sb
12 CTL B
11 IN1 b
Sc
10 GND
9
IN1 c
Sa, Sb: clamped input
Sc
: non-clamped input
•Absolute maximum ratings (Ta = 25°C)
Parameter
Power supply voltage
Symbol
Limits
Unit
VCC
9
V
mW
Pd
500∗
Operating temperature
Topr
– 40 ~ + 85
°C
Storage temperature
Tstg
– 55 ~ + 125
°C
Power dissipation
∗ Reduced by 5.0mW for each increase in Ta of 1°C over 25°C.
1
Multimedia ICs
BA7607 / BA7607F
•Equivalent circuits
Sa, Sb
IN
VCC
I2
0.3mA
R3
22k
Q5
R12
200
R16
200
R7
100
Q9
R2
4k
Q6
R9
200
Q7
Q8
R15
200
Q10 Q11
Q3
R10
100
R11
100
R13
100
R14
100
Q2
Q12
Q1
OUT
I1
0.6mA
R8
25k
R1
1k
Sc
I4
0.6mA
R17
12k
I5
1mA
IN
VCC
R3
13.6k
R4
200
I2
0.3mA
R12
200
R16
200
R7
100
Q5
Q9
R2
2.2k
R6
20k
Q4
R9
200
Q7
Q8
R15
200
Q10 Q11
Q3
R10
100
R11
100
R13
100
R14
100
Q2
Q12
Q1
OUT
R1
1k
2
R5
33k
I1
0.6mA
R17
12k
I4
0.6mA
I5
1mA
Multimedia ICs
BA7607 / BA7607F
CTL
VCC
R1
50k
R6
25k
I2
0.6mA
R2
200
Q1
CTL
Q6
I1
0.25mA
Q3
Q5
Q2
Q4
R3
400
R5
25k
I3
0.06mA
R4
400
•Electrical characteristics (unless otherwise noted, Ta = 25°C and V
Parameter
Typ.
Max.
CC
= 5V)
Symbol
Min.
Unit
Conditions
Operating voltage
VCC
4.5
5.0
Supply current
ICC
—
12.5
5.5
V
—
17.0
mA
—
Maximum output level 1
Vom
2.6
2.9
—
VP-P
f = 1kHz, THD = 0.5%, clamped input
Maximum output level 2
Vom
2.7
3.0
—
VP-P
f = 1kHz, THD = 0.5%, non-clamped input
Voltage gain
GV
– 0.5
0
0.5
dB
f = 1MHz, VIN = 1VP-P
Interchannel crosstalk
CT
—
– 65
—
dB
f = 4.43MHz, VIN = 1VP-P
Frequency characteristic
Gf
–3
Input impedance
ZIN
0
1
dB
10MHz / 1MHz, VIN = 1VP-P
14
20
26
kΩ
non-clamped input
f = 1kHz, 1VP-P, non-clamped input
Total-harmonic distortion
THD
—
0.007
—
%
CTL pin switch level
VTH
2.0
2.5
3.0
V
—
Note: Refer to the measurement circuit given in Fig. 1.
3
Multimedia ICs
BA7607 / BA7607F
date
•PinReference
DC voltages (reference values)
Units: Vdc
Pin No.
DC voltage
Pin No.
DC voltage
2.48
1
2.05
9
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
Electrical characteristics
Parameter
Sync tip clamp level
Min.
Typ.
Max.
Unit
0.49
0.65
0.80
Vdc
Input impedance (no clamp)
—
20k
—
Ω
Input impedance (with clamp)
—
1.7M
—
Ω
Output impedance
—
30
—
Ω
The input coupling capacitor values should be 0.1µF to 1µF.
4
Multimedia ICs
BA7607 / BA7607F
•Measurement circuit
~
50Ω
V
V
105
1 2
223
3
105
50Ω
V
1
S2b
47 / 16
VCC
~
VCC
OSC
2
105
1 2
3
S3b
3
105
S1b
A
16
15
14
13
12
11
10
9
S1a
S1C
1 2
105
3
1
2
3
4
V
50Ω
V
S3a
3
1 2
105
V
7
8
OSC
50Ω
1 2
105
OSC
50Ω
S2c
1 2
105
3
3
105
V
V
VCC
3
V
V
S3c
3
V
~
6
~
S2a
1 2
105
5
VOUTb VOUTc
VOUTa
OSC
~
1 2
105
105
V
VCC
OSC
~
50Ω
Fig.1
5
Multimedia ICs
BA7607 / BA7607F
•Measurement conditions
Switch settings
Symbol
Parameter
Measurement
method
S1a
S2a
S3a
S1b
S2b
S3b
S1c
S2c
S3c
ICC
2
2
2
2
2
2
2
2
2
Maximum
output level
IN1a
IN2a
IN1b
IN2b
IN1c
IN2c
Vom
Vom
Vom
Vom
Vom
Vom
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 = 1kHz,
THD = 0.5%
Note 1
Voltage gain
IN1a
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
f = 1MHz,
V = 1VP-P
Note 2
Interchannel
crosstalk
IN1a
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
f = 4.43MHz,
V = 1VP-P
Note 3
Frequency
characteristic
IN1a
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
f = 10M / f = 1M,
V = 1VP-P
Note 4
CTL pin
switching level
CTL a
CTL b
CTL c
VTH
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
Note 5
Input
impedance
IN1 c
IN2 c
ZIN
ZIN
2
2
2
2
2
2
2
2
2
2
2
2
1
2
2
1
2
3
Note 6
Total-harmonic
distortion
IN1 c
IN2 c
THD
THD
2
2
2
2
2
2
2
2
2
2
2
2
3
2
2
3
2
3
Note 7
Current dissipation
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 Vom (VP-P).
Note 2: Input a 1VP-P, 1MHz sine wave. The voltage gain is given by GV = 20 log (VOUT / VIN).
Note 3: Input a 1VP-P, 4.43MHz sine wave. The interchannel crosstalk is given by CT = 20 log (VOUT / VIN).
Note 4: Input 1VP-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 1VP-P, 1MHz sine wave. Reduce the CTL pin voltage from VCC.
The CTL pin switching level (VTH) is the CTL pin voltage at which the VOUT level drops below 20mVP-P.
Note 6: Measure the input pin voltage VIN50 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 = (VIN50 - VIN0) / 50 × 10-6 [Ω].
Note 7: Input a 1VP-P, 1kHz sine wave and measure the total-harmonic distortion of the output using a total-harmonic distortion meter.
6
Multimedia ICs
BA7607 / BA7607F
•External dimensions (Units: mm)
BA7607
BA7607F
10.0 ± 0.2
19.4 ± 0.3
9
2.54
0.5 ± 0.1
0.11
7.62
0.3 ± 0.1
9
1
8
1.27
0.4 ± 0.1
0.15 ± 0.1
6.2 ± 0.3
8
16
4.4 ± 0.2
1
1.5 ± 0.1
0.51Min.
3.2 ± 0.2 4.25 ± 0.3
6.5 ± 0.3
16
0.3Min.
0° ~ 15°
0.15
DIP16
SOP16
7