RF6001 datasheet(21/70 Pages) RFMD

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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

RXMODE=001, DBL=1

In this mode the SSI provides two samples of I and two samples of Q for each GSM symbol period. The output data pattern on

DRI is 16 bits of I data followed by 8 blank bits, and the output data pattern on DRQ is 16 bits of Q data followed by 8 blank

bits. In this case, FSR is (13/24)MHz=541.667kbps and always marks the beginning of the I and Q data transfer. CLKR is

13MHz.

The various CLKR modes are defined as follows: with CLKRM=00 and RXCKB=0, CLKR will shut down after the Q data transfer

completes until the next I data transfer to save power; with CLKRM=01 and RXCKB=0, CLKR is always enabled if ENR is true;

with CLKRM=1x, CLKR is always disabled.

The following diagram summarizes this mode of operation.

RXMODE=010

In this mode the SSI provides one sample of I and one sample of Q for each GSM symbol period. The output data pattern on

DRI is 16 bits of I data followed by 16 bits of Q data. In this case, FSR is (8.667/32)MHz=270.833kbps and always marks the

beginning of the I data transfer. CLKR is 8.667MHz.

The various CLKR modes are defined as follows: with CLKRM=00 and RXCKB=0, CLKR will shut down after the Q data transfer

completes until the next I data transfer to save power (with RXMODE=010, CLKR will always be enabled as there is no blank

data); with CLKRM=01 and RXCKB=0, CLKR is always enabled if ENR is true; with CLKRM=1x, CLKR is always disabled.

DBL has no effect in this mode.

The following diagram summarizes this mode of operation.

DRI

I(15)

I(14)

I(1)

I(0)

I(15)

I(14)

CLKR,

CLKRM=00

ENR

CLKR,

CLKRM=01

FSR

DRQ

Q(15)

Q(14)

Q(1)

Q(0)

Q(15)

Q(14)

ENR

CLKR,

CLKRM=00

CLKR,

CLKRM=01

FSR

DRI

I(15)

I(14)

I(1)

I(0)

I(15)

I(14)

DRQ

Q(15)

Q(14)

Q(1)

Q(0)

Q(15)

Q(14)

RF6001 Datasheet(PDF) 21 Page - RF Micro Devices

RF6001 Datasheet(HTML) 21 Page - RF Micro Devices

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