W3020 Datasheet, PDF (19/44 Pages) Agere Systems – GSM Multiband RF Transceiver

Advance Data Sheet
December 1999
Programming Information (continued)
Serial Bus Timing Information
DAT
CLK
MSB
MSB – 1
tCS
tCH
W3020 GSM Multiband RF Transceiver
LSB
LAT
t
L
L
OR
LAT
V
t
tCWL
tCWH
Figure 8. Serial Bus Timing Diagram
tLS
tLWH
Table 11. Serial Bus Timing Information
VDD = 2.7 V; TA = 25 °C ± 3 °C
Symbol
Parameter
Min Typ Max Unit
TCS Data to Clock Setup Time
33 —
—
ns
TCH Data to Clock Hold Time
10 —
—
ns
TCWH Clock Pulse Width High
33 —
—
ns
TCWL Clock Pulse Width Low
33 —
—
ns
TLS Clock Falling Edge to Latch High Setup Time 0
—
—
ns
TLWH Latch Pulse Width
50 —
—
ns
TLL Latch to Clock Setup Time
33 —
—
ns
FCLK Clock Input Frequency
— — 10 MHz
Lucent Technologies Inc.
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