RF6001_1 RFMD [RF Micro Devices], RF6001_1 Datasheet - Page 23

• Manufacturer Part Number: RF6001_1
• Description: FRACTIONAL-N RF SYNTHESIZER WITH MODULATOR AND DIGITAL IF FILTER
• Manufacturer: RFMD [RF Micro Devices]

RXMODE=100, 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 16 bits of Q data followed by 16 blank bits. In this case FSR is (13/24)MHz=541.667kbps
and CLKR is 26MHz.
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=101
In this mode the SSI provides four samples of I and four samples of Q for each GSM symbol period. The output data pattern on
DRI is 12 bits of I data followed by 12 bits of Q data. In this case FSR is (13/12)MHz=1083.333kbps and CLKR is 26MHz.
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=101, 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 will have no effect in this mode.
The following diagram summarizes this mode of operation.
Rev A3 DS050929
CLKRM=00
CLKRM=01
CLKRM=00 or 01
CLKR
CLKR
DRQ
ENR
FSR
DRI
CLKR,
DRQ
ENR
FSR
DRI
Tcs
(Valid only for CHBW greater than or equal to 90kHz in 100kHz VLIF or DCR mode.)
1
I(15)
Tcwh
Tsu
2
1
I(14)
I(11)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
3
2
I(10)
15
I(1)
3
Tcwl
Th
16
I(0)
11
I(1)
17
Q(15)
12
I(0)
18
Q(14)
13
19
Q(11)
Part of the POLARIS™ TOTAL RADIO™ Solution
14
31
Q(1)
Q(10)
32
15
Q(0)
33
23
Q(1)
34
24
Q(0)
48
RF6001
1
I(11)
1
I(15)
2
2
I(10)
I(14)
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