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RF6001
Rev A3 DS050929
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
Part of the POLARIS™ TOTAL RADIO™ Solution
Transmit Test Mode
There is a test mode in the RF6001 to assist in transmitter testing. This mode is invoked by setting SDI bit TXTEST=1. Pseudo-
random data based on a PN9 sequence is used as the data source to the GMSK modulator. The data sequence is initiated by
a rising edge on TXST and ends on the falling edge of TXST. The Transmit Turn-On Sequence defined in an earlier section
should be followed to allow proper VCO warm-up and PA ramping to take place when using this test mode. This test mode is
shown in the diagram below:
Multiplexed RX and TX Busses
The RF6001 RX interface can be connected to the TX interface to result in a single interface to baseband as shown in the dia-
gram below.
Regardless of the TX mode chosen the TX signals are all inputs and will not conflict with the RX signals. The RX outputs must
be set to analog mode by programming S_MODE low and holding RX_EN low during transmit times. This is to avoid a conflict
between the idle ground states of the digital RX outputs and the external TXI and Q signals.
TXDATA
TXST
PN9 data
TXI
IOUT/ENR
TXIB/MS
IBOUT/CLKR
TXQ/MDI
QOUT/FSR
TXQB/MCK
QBOUT/DRI
TX_EN
Phase
Adjust
TX_INV
TX_ST
TX
Analog
Interface
TX
Digital
Interface
RX
Analog
Interface
RX
Digital
Interface
RX_EN
Power On
Reset
SDI
Fractional
Synthesizer
Clock
RX
Digital
TX_INV
MS_LEN
MS_LOC
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