RF6001_1 RFMD [RF Micro Devices], RF6001_1 Datasheet - Page 22

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

RF6001
Part of the POLARIS™ TOTAL RADIO™ Solution
RXMODE=011
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 followed by 16 blank bits. In this case, FSR is (13/48)MHz=270.833kbps
and 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.
DBL has no effect in this mode.
The following diagram summarizes this mode of operation.
RXMODE=100, DBL=0
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 followed by 64 blank bits. In this case FSR is (13/48)MHz=270.8333kbps
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.
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CLKRM=00
CLKRM=01
CLKRM=00 or 01
CLKR
DRQ
ENR
FSR
DRI
CLKR
CLKR
DRQ
ENR
FSR
DRI
CLKR,
DRQ
ENR
FSR
DRI
Tcs
Tcs
1
I(15)
1
I(15)
Tcwh
2
Tsu
Tcwh
I(14)
2
Tsu
1
I(14)
I(15)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
3
3
2
I(14)
15
15
I(1)
Tcwl
I(1)
Th
3
Tcwl
Th
16
I(0)
16
I(0)
15
17
I(1)
Q(15)
17
Q(15)
16
18
I(0)
Q(14)
18
Q(14)
19
17
Q(15)
19
31
18
Q(1)
31
Q(14)
Q(1)
32
Q(0)
32
19
Q(0)
33
33
31
Q(1)
34
34
32
48
Q(0)
96
1
1
I(15)
I(15)
Rev A3 DS050929
1
I(15)
2
2
I(14)
I(14)
2
I(14)