srf-2724cs RF Micro Devices, srf-2724cs Datasheet - Page 19

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srf-2724cs

Manufacturer Part Number
srf-2724cs
Description
2.4ghz Low-if 1.5mbps Fsk Transceiver
Manufacturer
RF Micro Devices
Datasheet
RD0 - Register 0, Bit 3
Reference Divide: This bit sets the reference divider from the FREF pin to the reference input of the PLL phase/frequency
detector to either 9 or 18 (see Table 7).
AOUT - Register 0, Bit 4
Analog Output Mode: This bit changes the function of the AOUT pin between an analog data output to transmit power control
(see Table 8).
TXCW - Register 0, Bit 6
Transmit Continuous Wave: This bit produces a continuous wave (CW) transmitter output for product test when RXON is low
(see Table 9).
Prelim DS090410
Table 7: Reference Frequency Select
RD0
0
1
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Table 8: AOUT Function Select
Table 9: Transmit Modulation Mode
Proposed
Reference
Division
TXCW
AOUT
18
9
0
1
0
1
FREF XTAL Freq
Transmit Modulation
12.288MHz
Data Filter Analog Output
6.144MHz
AOUT Pin Function
Transmit Power Control
CW - No Modulation
FSK Modulation
SRF-2724CS
PLL REF Freq
682.67kHz
682.67kHz
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