W3020 데이터 시트보기 (PDF) - Agere -> LSI Corporation

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W3020

GSM Multiband RF Transceiver

Agere -> LSI Corporation 

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.

19

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