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Service manual SC-150
-39-
4-9 CXA1315P
4-9-1 General description
The CXA1315M/P is developed as a 5-channel 8- bit D/A converter supporting with I 2 C bus.
4-9-2 Features
-Serial control through I
2 C bus
-5-channel 8-bit D/A converter
-Built-in 4general-purpose I/O ports (Digital I/O)
-I/O can be specified to respective ports independently
-Selection of 8 slave addresses possible through address select pins (3 pins)
4-9-3 Block diagram
Level
Conversion
Level
Conversion
Power On
Reset
SAD2
SDA
I
2
C BUS
SCL
LATCH
DAC
REG
DAC4
GND
DAC3 DAC2 DAC1 DAC0
AMP
Vcc
Vcc
AMP AMP AMP AMP
DAC DAC DAC DAC
LATCH LATCH LATCH LATCH
SAD1 SAD0 SW0 to 3
Open collector
Level
Conversion
LATCH
I
2
C Decoder