Rohm BA7606F Video signal switcher Datasheet

Multimedia ICs
Video signal switcher
BA7606 / BA7606F
The BA7606 and BA7606F are switching ICs developed for use in video cameras. Each contains three two-channelanalog multiplexers. They feature a large dynamic range, and wide operating freqency range, and the switches
have pedestal clamp inputs which are ideal for switching RGB and video signals.
Applications
•Video
cassette recorders and televisions
•1)Features
Three 2-input / 1-output switches.
5) Excellent frequency characteristics
(10MHz, – 1dB Typ.).
6) Wide dynamic range (2.6Vp-p Typ.).
7) Fast switching speed (50ns Typ.).
2) 5V power supply.
3) Pedestal clamp inputs
4) Low power consumption (62.5mW Typ.).
•Block diagram
IN2a 1
16 IN1a
Sa
CTLa 2
OUTa
14 IN2b
3
Sb
GND 4
OUTb 5
13 VCC
12 CTLb
OUTc 6
11 IN1b
SC
CTLc 7
IN2c 8
CTL
L
H
15 GND
Output
IN2
IN1
10
CLAMP
PULSE
9
IN1c
Sa, Sb, Sc:
pedestal-clamped input
•Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Unit
Power supply voltage
VCC
9
V
Power dissipation
Pd
500∗
mW
Operating temperature
Topr
– 40 ~ + 85
°C
Storage temperature
Tstg
– 55 ~ + 125
°C
∗ Reduced by 5.0mW for each increase in Ta of 1°C over 25°C.
1
Multimedia ICs
BA7606 / BA7606F
•Equivalent circuits
IN
Sa, Sb, Sc
VCC
R1
50k
R3
50k
R6
10.4k
R8
10k
I2
0.3mA
R9
100
R15
200
R19
200
Q7
Q13
R5
6.2k
Q10
Q9
Q2
R11
200
Q6
R2
200
Pulse
Q11 Q12
Q8
R18
200
Q14 Q15
Q1
Q5
R12
100
R13
100
R16
100
R17
100
Q4
Q16
Q3
OUT
R7
10k
R4
1k
I1
0.6mA
R10
25k
R14
12k
I3
0.6mA
CTL
VCC
R1
50k
R6
25k
R2
200
CTL
I1
0.25mA
2
I2
0.6mA
Q1
Q6
R3
400
Q3
Q5
Q2
Q4
R5
25k
R4
400
I3
0.06mA
I4
1mA
Multimedia ICs
BA7606 / BA7606F
•Electrical characteristics (unless otherwise noted, Ta = 25°C and Vcc = 5V)
Parameter
Operating voltage
Supply current
Maximum output level U
Maximum output level D
Voltage gain
Interchannel crosstalk
Frequency characteristics
CTL pin switch level
Clamp input level
Symbol
VCC
ICC
VomU
VomD
GV
CT
Gf
VTH
Vct
Min.
4.5
—
1.40
0.80
– 0.9
—
–3
2.0
0.75
Typ.
5.0
15.0
1.65
0.95
0
– 65
–1
2.5
—
Max.
5.5
23.0
—
—
0.5
—
1
3.0
2.2
Unit
V
mA
VP-P
VP-P
dB
dB
dB
V
V
Conditions
—
—
Note 1
Note 2
f = 1MHz, VIN = 1VP-P
f = 4.43MHz, VIN = 1VP-P
10MHz / 1MHz, VIN = 1VP-P
—
—
∗ Refer to the mesurement circuit given in Fig. 1.
Note 1: Positive-side dynamic range from the clamp level
Note 2: Negative-side dynamic range from the clamp level
date
•PinReference
DC voltages (reference values)
Units: Vdc
Pin No.
DC voltage
Pin No.
DC voltage
1
2.96
9
2.96
2
4.91
10
4.97
3
1.54
11
2.96
4
0
12
4.91
5
1.54
13
5.00
6
1.54
14
2.96
7
4.91
15
0
8
2.96
16
2.96
Electrical characteristics
Parameter
Min.
Typ.
Max.
Unit
1.20
1.54
1.95
Vdc
Input impedance (with clamp)
—
1.7M
—
Ω
Output impedance∗
—
30
—
Ω
Pedestal clamp level
The input coupling capacitor values should be 0.1µF to 1µF.
Use a clamp pulse of at least 1µS (BA7606).
∗ The pin 6 output impedance of the BA7606 is 130Ω
3
Multimedia ICs
BA7606 / BA7606F
•Measurement circuit
VCC
PG2
PG1
PG1
V
R
C
C
V
R
VCC
VCC
OSC
R
C
223
C
47µ
PG1
V
R
1
C
C
OSC
S2b
1
1
2 3
A
1
OSC
2 3
2 3
2 3
1
2 3 4
S1b
S4
S3b
S1a
16
15
14
13
12
11
10
S1c
9
1
2 3
OSC
C
PG1
C
R
V
1
2
3
~V
S2a
1
2 3
VOUTa
6
V
8
7
~V ~V
S2c
1
VOUTb VOUTc
1
2 3
1
PG1
2 3
Input waveform
PG1
VCC
VINU
VCC
OSC
f = 4.43MHz
f = 1MHz
VIND
f = 10MHz
R = 50Ω
63.556µs
5V
PG2
C = 1µF
V = 3VDC
0V
3.5µs
Output waveform
VOUTU
VOUTD
Fig.1
4
2 3
OSC
C
S3c
S3a
C
R
5
OSC
C
PG1
4
C
R
V
Multimedia ICs
BA7606 / BA7606F
•Measurement conditions
Parameter
Symbol
Current dissipation
Switch settings
Measurement
method
S1a
S2a
S3a
S1b
S2b
S3b
S1c
S2c
S3c
S4c
ICC
2
2
2
2
2
2
2
2
2
4
IN1a
Vom
1
2
2
2
2
2
2
2
2
1
IN2a
Vom
2
1
3
2
2
2
2
2
2
1
IN1b
Vom
2
2
2
1
2
2
2
2
2
1
IN2b
Vom
2
2
2
2
1
3
2
2
2
1
IN1c
Vom
2
2
2
2
2
2
1
2
2
1
IN2c
Vom
2
2
2
2
2
2
2
1
3
1
IN1a
GV
3
2
2
2
2
2
2
2
2
3
IN2a
GV
2
3
3
2
2
2
2
2
2
3
IN1b
GV
2
2
2
3
2
2
2
2
2
3
IN2b
GV
2
2
2
2
3
3
2
2
2
3
IN1c
GV
2
2
2
2
2
2
3
2
2
3
IN2c
GV
2
2
2
2
2
2
2
3
3
3
IN1a
CT
2
3
2
2
2
2
2
2
2
3
IN2a
CT
3
2
3
2
2
2
2
2
2
3
IN1b
CT
2
2
2
2
3
2
2
2
2
3
IN2b
CT
2
2
2
3
2
3
2
2
2
3
IN1c
CT
2
2
2
2
2
2
2
3
2
3
IN2c
CT
2
2
2
2
2
2
3
2
3
3
IN1a
Gf
3
2
2
2
2
2
2
2
2
3
IN2a
Gf
2
3
3
2
2
2
2
2
2
3
IN1b
Frequency
characteristic IN2b
Gf
2
2
2
3
2
2
2
2
2
3
OSC
f = 10MHz
f = 1MHz
VIN = 1VP-P
Gf
2
2
2
2
3
3
2
2
2
3
Note 4
IN1c
Gf
2
2
2
2
2
2
3
2
2
3
IN2c
Gf
2
2
2
2
2
2
2
3
3
3
CTLa
VTH
3
2
1
2
2
2
2
2
2
3
CTLb
VTH
2
2
2
3
2
1
2
2
2
3
CTLc
VTH
2
2
2
2
2
2
3
2
1
3
OSC
f = 1MHz
VIN = 1VP-P
Note 5
Clamp
Vct
2
2
2
2
2
2
2
2
2
2
Note 6
Maximum
output
level
(U or D)
Voltage
gain
Interchannel
crosstalk
CTL pin
switching
level
Clamp pin
Ammeter
Note 1
OSC
f = 1MHz
VIN = 1VP-P
Note 2
OSC
f = 4.43MHz
VIN = 1VP-P
Note 3
Note 1: VomU is the value for VOUTU when VOUTU / VINU ⬉ – 1dB.
VomD is the value for VOUTD when VOUTD / VIND ⬉ – 1dB.
Note 2: GV = 20 log (VOUT / VIN).
Note 3: CT = 20 log (VOUT / VIN).
Note 4: Gf = 20 log (VOUT (f = 10MHz) / VOUT (f = 1MHz)).
Note 5: 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: Clamp pulse voltage at which VOUT falls below 0.4V and clamp pulse voltage at which VOUT falls below 1.4V.
5
Multimedia ICs
BA7606 / BA7606F
•External dimensions (Units: mm)
BA7606
BA7606F
10.0 ± 0.2
19.4 ± 0.3
9
0.3 ± 0.1
2.54
0.5 ± 0.1
0.11
9
1
8
1.27
0.4 ± 0.1
0.15 ± 0.1
7.62
0.3Min.
0° ~ 15°
0.15
DIP16
6
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
SOP16

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