TDA5230 Datasheet, PDF (48/186 Pages) Infineon Technologies AG – Universal Low Power ASK/FSK Single Conversion Multi-Channel Image-Reject Receiver

TDA523x
Functional Description
Dual: AMT and BMT: Conf.A Modulation Type Register
ADDR: 0x21 and 0x42
Reset Value: 0x04
Bit R/W Description
3:2 W NOC: Number of channels
Used only in the Self Polling Mode to define how many channels must be
scanned. In the Slave Mode only one channel is used, regardless of the
configuration.
Min: 01b = 1 channel
Max: 11b= 3 channels
1:0 W MT: Modulation Type
Run Mode Slave Self Polling Mode Run Mode Self Polling
00b
ASK
ASK
ASK
01b
FSK
FSK
FSK
10b
ASK
FSK
ASK
11b
FSK
ASK
FSK
2.4.5.7 Multi-channel in Self Polling Mode
Previously mentioned, in Self Polling Mode TDA523x allows up to three channels per
configuration to be scanned. Channels are defined in registers ARFPLL1-3 and
BRFPLL1-3. The channel number at which a wake up has been found is available in
register RFPLLACS. See also Chapter 2.4.4 RF-PLL Synthesizer.
Dual: AMT and BMT: Conf.A Modulation Type Register
ADDR: 0x21 and 0x42
Reset Value: 0x04
Bit R/W Description
3:2 W NOC: Number of channels
Used only in the Self Polling Mode to define how many channels must be
scanned. In the Slave Mode, only one channel is scanned, regardless of the
configuration.
Min: 01b = 1 channel
Max: 11b= 3 channels
Data Sheet
44
Version 4.0, 2007-06-01