MX172 Datasheet, PDF (1/6 Pages) Macronix International – TRIANGULAR TYPE AUTO FOCUS IC

FEATURES
• Package : 14-pin SSOP
• Operating voltage : 2V~4V
• Operating temperature : -25^oC~60^oC
• Supply current : max. 10mA (without output current)
• Input current level : 1nA~5uA
MX172
TRIANGULAR TYPE AUTO FOCUS IC
• Surround light level : max. 50uA (PSD output current)
• IRED drive output : min. 20mA
• Magnet drive current : min. 200mA
• Measuring time : max. 50ms
DESCRIPTION
MX172 is designed for Triangular system auto focus
cameras. It is regarded as input component for PSD
(Position Sensitive Diode), and comprises of circuits that
drive AF magnet as output, an infrared emission diode
current control circuit, and control circuit of sequential
timing.
PIN CONFIGURATION
14 SSOP
GND
14
CH1
2
13
PSD1
3
12
PSD2
4
11
CH2
5
10
VCC
6
9
VE
7
8
OUT1
OUT2
IRED
CTRL
CT
VR1
VR2
PIN FUNCTIONS
SYMBOL
PIN NAME
GND
Ground Pin
CH1
Hold Capacitor Pin 1
PSD1
PSD Input Pin 1
PSD2
PSD Input Pin 2
CH2
Hold Capacitor Pin 2
VCC
Supply Pin (Secondly)
VE
Supply Pin (Battery)
VR2
VR Pin for Adjustment 2
VR1
VR Pin for Adjustment 1
CT
Timing Capacitor
CTRL
Power Control
IRED
Output Control for IRED
OUT2
Data Output Pin 2 (MSB)
OUT1
Data Output Pin 1(LSB)
P/N: PM0168
1
REV. 2.1, AUG 29, 1995