|
ROHM Semiconductor |
Multimedia ICs
Video signal switcher
BA7606 / BA7606F
The BA7606 and BA7606F are switching ICs developed for use in video cameras. Each contains three two-chan-
nelanalog 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
•Features
1) Three 2-input / 1-output switches.
2) 5V power supply.
3) Pedestal clamp inputs
4) Low power consumption (62.5mW Typ.).
•Block diagram
IN2a 1
CTLa 2
OUTa 3
GND 4
OUTb 5
OUTc 6
CTLc 7
IN2c 8
5) Excellent frequency characteristics
(10MHz, – 1dB Typ.).
6) Wide dynamic range (2.6Vp-p Typ.).
7) Fast switching speed (50ns Typ.).
Sa
Sb
SC
16 IN1a
15 GND
14 IN2b
13 VCC
12 CTLb
11 IN1b
10
CLAMP
PULSE
9 IN1c
CTL Output
L IN2
H IN1
Sa, Sb, Sc:
pedestal-clamped input
•Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Power supply voltage
VCC
9
Power dissipation
Pd 500∗
Operating temperature
Topr
– 40 ~ + 85
Storage temperature
Tstg
∗ Reduced by 5.0mW for each increase in Ta of 1°C over 25°C.
– 55 ~ + 125
Unit
V
mW
°C
°C
1
Multimedia ICs
BA7606 / BA7606F
•Equivalent circuits
Sa, Sb, Sc
IN
Pulse
R1
50k
R2
200
R3 R6
50k 10.4k
Q7
R5
6.2k
Q2
Q6
Q1
Q5
Q4
R8 R9
10k 100
I2
0.3mA
Q10
Q9
R11
200 Q11 Q12
Q8
R12 R13
100 100
Q3
R4
1k
R7
10k
R10 I1
25k 0.6mA
R15
200
Q13
R19
200
VCC
Q14 Q15
R18
200
R16 R17
100 100
R14 I3
12k 0.6mA
Q16
I4
1mA
OUT
CTL
R1
50k
R2
CTL 200 Q1
VCC
R6
25k
I2
0.6mA
Q6
Q3 Q5
I1
0.25mA
Q2 Q4
R3 R4
400 400
R5
25k
I3
0.06mA
2
|