CDC960 Datasheet, PDF (29/38 Pages) Texas Instruments – 200-MHz CLOCK SYNTHESIZER/DRIVER WITH SPREAD SPECTURM CAPABILITY AND DEVICE CONTROL INTERFACE

CDC960
200ĆMHz CLOCK SYNTHESIZER/DRIVER
WITH SPREAD SPECTRUM CAPABILITY AND DEVICE CONTROL INTERFACE
SCAS675 – APRIL 2002
PARAMETER MEASUREMENT INFORMATION
DUT
VO = 3.3 V
RL = 1 kΩ
CL = 10 pF or
CL = 400 pF
GND
TEST CIRCUIT
4 to N Bytes for Complete Device Programming
Start
Condition
(S)
Bit 7
MSB
Bit 6
Bit 0
LSB
(R/W)
Acknowledge
(A)
Stop
Condition
(P)
tw(SCLL)
tw(SCLH)
SCLOCK
tsu(START)
t(BUS)
SDATA
tf(DATA)
tr
tf
tr(SDATA)
tPHL
th(SDATA)
tsu(START)
tPLH
tsu(STOP)
0.7 VCC
0.3 VCC
0.7 VCC
0.3 VCC
th(START)
tsu(SDATA)
Start or
Repeat Start Condition
Repeat Start Condition
(see Note A)
VOLTAGE WAVEFORMS
NOTE A: The repeat start condition is supported, but not clock stretching.
Stop Condition
BYTE
1
2
3
4
5–N
DESCRIPTION
SMBus address
Command (dummy value, ignored)
Byte count
SMBus data byte 0
SMBus data byte 1 – N
Figure 6. Propagation Delay Times, t_r and t_f
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
29