ICs for VCR
s
Pin Descriptions (cont.)
Pin No.
Pin name
DC voltage (V
CC
=5V)
Equivalent circuit
AN3389SB
Description
50kΩ
35
VASEL
5V
35
200Ω
Video/audio mode-selection control
for automatic tracking interface.
Video mode is selected when this
pin is high (open), and audio mode
is selected when this pin is low.
50kΩ
SLOW SW
5V for
playback
36
200Ω
Still/slow mode selection control.
Still mode is selected when this pin
is high (open), and slow mode is
selected when this pin is low, under
the condition that Pin21
(PB CONT) is low.
36
36
Rec EQ
3.7V for
recording
960Ω
200Ω
Recording equalization
11