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DS1050U-001+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
DS1050
10 of 17
BLOCK DIAGRAM Figure 1
2-WIRE ADDRESSABLE SERIAL PORT OVERVIEW Figure 2
repeated if more bytes
are transferred
acknowledgement
signal from receiver
SCL
SDA
12 678
ACK
slave address
Start
Condition
9
Stop Condition
or repeated
Start Condi ti on
acknowledgement
signal from receiver
9
1
2
8
3-7
ACK
r/w
direction
bit
msb
COMMAND/CONTROL BYTE Figure 3
Serial Port
CONTROL LOGIC
OSCILLATOR
SCL
A2
A1
A0
SDA
DRIVER
v
cc
GND
SHUTDOWN
CONTROL
CIRCUITRY
PWM
O
Device
Identifie
r
Device
A
ddress
Read/Write
Bit
1
A
1
A
0
0 0
A
2r/w 1
msb
lsb
DS1050
11 of 17
DS1050 COMMANDS AND PROTOCOL Figure 4
MSB LSB
S
T
A
R
T
A0A1A210100
R/W=0
CONTROL
BYTE
MSB LSB
PWM
DATABYTE
00
Don't Care1
MSB LSB
A0A1A210100
R/W=0
CONTROL
BYTE
MSB LSB
PWM
DATABYTE
11
Don't Care
0
SET SHUT-DOWN MODE
MSB LSB
A0A1A210101
R/W=1
CONTROL
BYTE
MSB LSB
PWM
DATABYTE
00
PWM-DATA
0
READ PWM DUTY CYCLE
MSB LSB
A0A1A210100
R/W=0
CONTROL
BYTE
MSB LSB
PWM
DATABYTE
10
Don't Care0
RECALL MODE
(e)
(d)
(c)
(b)
S
T
A
R
T
S
T
A
R
T
S
T
A
R
T
S
T
A
R
T
S
T
O
P
S
T
O
P
S
T
O
P
S
T
O
P
MSB LSB
S
A
A0A1A210100
R/W=0
CONTROL
BYTE
MSB LSB
PWM
DATABYTE
00
PWM Data0
SET PWM DUTY CYCLE
(a)
S
T
A
R
T
S
T
A
R
T
S
T
O
P
C
K
C
K
C
K
C
K
C
K
DS1050
12 of 17
2-WIRE SERIAL DIAGRAMS Figure 5
t
BUF
SCL
SDA
STOP START
t
HD:STA
t
R
t
LOW
t
HD:STA
t
HIGH
F
t
t
SU:DAT
REPEATED
START
t
SU:STA
t
HD:STA
t
SP
t
SU:STO
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

DS1050U-001+

Mfr. #:
Buy DS1050U-001+
Manufacturer:
Maxim Integrated
Description:
Clock Generators & Support Products 5 Bit 118-mil 2-Wire 1kHz PWM
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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