LUCW3000CCN AGERE [Agere Systems], LUCW3000CCN Datasheet - Page 9

• Manufacturer Part Number: LUCW3000CCN
• Description: W3000 PLL Dual-Band Frequency Synthesizer
• Manufacturer: AGERE [Agere Systems]

Advance Data Sheet
December 1999
Serial Data Input
The PLL is programmed via a 3-wire serial bus, utilizing a data pin (DAT), a clock pin (CLK), and a latch pin
(LAT).
Serial Bus Timing Information
Table 5. Serial Bus Timing Information
DAT
CLK
LAT
LAT
OR
Symbol
t
Lucent Technologies Inc.
t
t
V
f
CWH
CWL
LWH
t
t
t
t
CLK
t
CS
CH
LS
LL
LL
t
MSB
Data to Clock Setup Time
Data to Clock Hold Time
Clock Pulse Width High
Clock Pulse Width Low
Clock Falling Edge to Latch High Setup Time
Latch Pulse Width
Latch to Clock Setup Time
Clock Input Frequency
t
CWL
t
CS
MSB – 1
Parameter
t
CWH
Figure 5. Serial Bus Timing Diagram
t
CH
W3000 PLL Dual-Band Frequency Synthesizer
Min
33
10
33
33
50
33
—
0
Typ
—
—
—
—
—
—
—
—
LSB
t
LS
Max
—
—
—
—
—
—
—
10
t
LWH
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
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