bh7272kv ROHM Co. Ltd., bh7272kv Datasheet - Page 12

• Manufacturer Part Number: bh7272kv
• Description: Two-channel Amplifier Digital Vcrs
• Manufacturer: ROHM Co. Ltd.

12
Video ICs
The pin voltages in brackets are for REC mode, all others are for PB mode.
Pin No.
41
42
43
44
45
46
47
48
PB SW + OUT
PB2nd IN A
PB2nd IN B
PB SW – OUT
BTL B I0adj
Pin name
V
PB “H”
HSW
REC
CC
5V
Pin voltage
(0.0)
(0.0)
(3.4)
2.5
2.5
2.0
2.0
0.0
0.0
2.5
(–)
(–)
(–)
(–)
—
Equivalent internal circuit
100k
100k
45
46
41
1k
48
1k
1k
15k
15k
12.8k
12.8k
—
2.6k
—
80
43
44
400
1k
42
Playback system 2nd amplifier input
Playback system 2nd amplifier input
1st stage amplifier positive phase
output
1st stage amplifier reverse phase
output
Mode control
Mode control
V
HEAD B recording current adjustment
CC
for PB 1st stage amplifier
Function
BH7272KV