DS1052 Datasheet, PDF (10/14 Pages) Dallas Semiconductor – 5-Bit, Programmable, 100kHz Pulse-Width Modulator

BLOCK DIAGRAM Figure 1
vcc
OSCILLATOR
DRIVER
PWMO
CONTROL LOGIC
SCL
SDA
SHUTDOWN
A0
A1
Serial Port
CONTROL
CIRCUITRY
A2
DS1052
GND
2-WIRE ADDRESSABLE SERIAL PORT OVERVIEW Figure 2
SDA
msb
slave address
r/w
direction
bit
acknowledgement
signal from receiver
acknowledgement
signal from receiver
SCL
Start
Condition
12
6 78
9
ACK
1 2 ^3-7 8 9
ACK
repeated if more bytes
are transferred
COMMAND/CONTROL BYTE Figure 3
msb
lsb
0 1 0 1 A2 A1 A0 r/w
Device
Identifier
Device
Address
Read/Write
Bit
Stop Condition
or repeated
Start Condition
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