TDA5230 Datasheet, PDF (64/186 Pages) Infineon Technologies AG – Universal Low Power ASK/FSK Single Conversion Multi-Channel Image-Reject Receiver

TDA523x
Functional Description
run mode
RX polling
sleep mode
T_On
T_Off
T_MasterPeriod
M*T_MasterPeriod
Active
N*T_MasterPeriod
Idle
Figure 28 Active Idle Period Including Fast Fall Back To Sleep
SPMC: Self Polling Mode Control Register
ADDR: 0x07
Reset Value: 0x00
Bit R/W Description
3 W PERMWUSEN: Permanent Wake Up Search enable during On Time
0: Disabled
1: Enabled
2 W SPMAIEN: Self Polling Mode Active Idle Enable
0: Disabled
1: Enabled
1:0 W SPMSEL: Self Polling Mode Selection
00b: Constant On/Off Time
01b: Fast Fall Back to Sleep
10b: Mixed Mode(Conf.A: Const On/Off, Conf.B: Fast Fall Back to Sleep)
SPMRT: Self Polling Mode Reference Timer
ADDR: 0x08
Reset Value: 0x01
Bit R/W Description
7:0 W SPMRT: Set Value Self Polling Mode Reference Timer
The output of this timer is used as input for the On/Off Timer
Incoming Periodic Time = 64/fsys
Output Periodic Time= T_RT = (64 * SPMRT) /fsys
Min: 01h = (64*1)/fsys
Max: 00h = (64 * 256)/fsys
Data Sheet
60
Version 4.0, 2007-06-01