W3020 Datasheet, PDF (18/44 Pages) Agere Systems – GSM Multiband RF Transceiver

W3020 GSM Multiband RF Transceiver
Advance Data Sheet
December 1999
Programming Information
The W3020 and W3000 transceiver mode (IC RX/TX) and the gain and band settings are programmed using a
standard three-wire bus (CLOCK, DATA, LATCH). The W3020 and W3000 registers are addressable so the two
ICs can share the same data, clock, and latch times. The LATCH line initiates download and execution of the
current DATA word.
TR REGISTER
CONFIG REGISTER
MAIN REGISTER
W3020
A[0:2]
PARALLEL LATCH
LAT
CLK
SERIAL SHIFT
DAT
W3000
SERIAL SHIFT
PARALLEL LATCH
MAIN REGISTER
A[0:2]
DAT
CLK
LAT
SC1
SERLE1
SERCK
SERDA
REF REGISTER
Figure 7. Diagram of W3020, W3000, and SC1 Interconnection
18
Lucent Technologies Inc.