TDA5230 Datasheet, PDF (148/186 Pages) Infineon Technologies AG – Universal Low Power ASK/FSK Single Conversion Multi-Channel Image-Reject Receiver

TDA523x
Register Descriptions
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
Only used in the Self Polling Mode to define how many channels are to be
scanned. In the Slave Mode, only one channel 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
Dual: ARFPLL1 and BRFPLL1:Conf. A RF PLL setting, channel 1 (Slave Mode
& Self Polling Mode)
ADDR: 0x22 and 0x43
Bit R/W Description
6:5 W RFPLLA: Band Selection
00 : select 315 MHz band, A=3
01 : select 434 MHz band, A=2
10 : select 868 MHz band, A=1
Reset Value: 0x29
Data Sheet
144
Version 4.0, 2007-06-01