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HD62014 .
* Servo controls for capstan, reel, and cylinder
« Provides various timing pulses
Pin] Toa
|e] Canvsed
wo | | oo
RLC
OUT
Reel driver
Function
GND for 2 pin ~ 9 pin buffer
PWM (Pulse Width Modulation) signal for reel
control, output during search
CAF
' | OUT | Capstan driver} PWM signal, output by capstan frequency error,
eee
output
CAP
OUT | Capstan driver} Capstan phase error, output (PWM output signal)
3
4
:
'
5
' CYFE
| OUT | Cylinder driver| Cylinder frequency error, output (PWM output
signal)
ae
CYP
OUT | Cylinder driver| Cylinder phase error, output (PWM output signal)
7
8
9
DT50
OUT
Clock of duty 50% output (No used)
REC
OUT
Rec. Amp. | Recorded data, output (high impedance, except
recording period)
PDO
OUT
vco
Phase comparison between playbacked data
.
and extracted clock, output (No used)
| 10
VCC
ra
Power supply for 2 ~ 9 pin buffer
OUT
vcO
| VCO_|
output (9.408/18.816 MHz)
Playbacked data
input clock (clock signal for playback)
Reproducing
Amp.
REC/PLYA chagne-over signal
REC... High
PLAY... Low
Cylinder PG (Pulse Generator) input terminal
Cylinder PG
Monostable
multivibrator
Monostable multivibrator delay monitor terminal
(No used)
Monostable multivibrator C/R integral input ter-
minal for control of cylinder phase
During search. ..H
19 -
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