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53
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O
I
I
-----
I
-----
O
O
I
I
I
I
I
I
I
I
-----
-----
-----
-----
-----
-----
I
-----
-----
-----
-----
-----
I
-----
-----
-----
O
-----
-----
I
-----
-----
I
O
I
-----
(Pulse)
(Pulse)
-----
(Pulse)
-----
0V-3V
0V-3V
0V-5V
0V-3V
0V-3V
0V-3V
0V-3V
0V-3V
0V-3V
0V-3V
-----
-----
-----
-----
-----
-----
Lo
-----
-----
-----
-----
-----
-----
-----
-----
-----
Hi
-----
-----
(Pulse)
-----
-----
(Pulse)
(Pulse)
(Pulse)
RD-PWMA
FV
FCUS-SEN
-----
ZOM-SEN
GND
HAL-ADJ1
HAL-ADJ0
BATTERY
ZOOM-SW
FOCUS-SW
+B-DET
TEMP-ADJ
V-GYRO
H-GYRO
FDET
AVCC
AVCC
VCC
VCC
-----
-----
RESET-IN
VCC
STBY
VCC
-----
GND3
SYS-CLK
FWE
MD2
-----
HALL-G
-----
-----
HD
-----
-----
FP
SD(232C)
RD(232C)
Not used. Open.
Receives the vertical sync pulses that detect the iris detection area,
from IC1121 (CAMERA DSP).
Focus motor position detection input.
Not used. Open.
Zoom motor position detection input.
Ground.
Controls the offset voltage of IC1351 (F.DET/IRIS DRIVE).
Drives bias generator in IC1351 (F.DET/IRIS DRIVE) via Q1351
(BIAS DRIVE) to control the bias voltage of the Hall devices.
Not used. Connected to 3V line and ground via resistors.
Not used. Connected to 3V line and ground via resistors and capacitor.
Power voltage (+B) detection input. Monitors the +B line voltage.
Temperature change detection input. Detects variations in the
forward voltage at the connected diode to correct the back-focus.
Not used. Connect to ground.
F-value detection input. Receives the F.DET voltage detected by
IC1351 (F.DET/IRIS DRIVE) and compares this with the reference
voltage input via pin 53 to detect the F-value.
Reference 3V power input.
A/D reference voltage input (connected to 3V power supply).
3V power input.
Not used. Open.
Not used. Connect to ground.
Reset signal input from IC1251 (RESET PULSE GEN.).
3V power input.
Not used. Connect to 3V power supply.
3V power input.
Not used. Open.
Grounded.
Inputs control pulses from IC1211 (CAMERA DSP).
Not used. Connected to ground via resistors.
Not used. Connected to 3V line via resistors.
Not used. Open.
Controls the amplification (gain of Hall device) of IC1351 (F.DET/IRIS
DRIVE).
Not used. Open.
Inputs horizontal sync from IC1121 (CAMERA DSP).
Not used. Open.
Inputs field discrimination pulse from IC1121 (CAMERA DSP).
Used for initial settings and adjustment. For data communications
with personal computer.
Pin
No.
I/O
Active
Level
Abbreviation
Function
Description of Operation > Microprocessor Pin Function Table