ICs for VCR
2. Recording mode
Pin18 (recording V
CC
) =12V typ.
Pin36 (playback V
CC
)
Pin24 (automatic tracking V
CC
)
AN3336SB
}
Opened or grounded
Pin35 : Recording internal bias current control
How to control :
35
R
• When the external resistance decreases, the internal circuit bias current
(I
total
) increases.
• R should be 27 to 33kΩ.
HASW control at Pin34
HASW Pin
34
H
L
SP output
OFF
active
LP output
active
OFF
Pin
11
,
13
GND
Diode
Pin
4
,
6
Diode
GND
Pin
19
Open
GND
s
Reference
P
D
—Ta
2.000
1.800
1.600
Power dissipation P
D
(mW)
1.449
1.400
1.200
1.000
833
800
600
400
200
0
0
25
50
75
On glass-epoxy print board
(50mm
×
50mm
×
t 0.8mm)
R
thj–a
=69˚C/W
P
D
=1449mW(25˚C)
IC without heatsink
R
thj–a
=120˚C/W
P
D
=833mW (25˚C)
100
125
150
Ambient temperature Ta (˚C)
5
PANASONIC [ PANASONIC SEMICONDUCTOR ]
