TDA5240 Datasheet, PDF (226/284 Pages) Infineon Technologies AG – Enhanced Sensitivity Multi-Channel Quad-Configuration Receiver

TDA5240
Appendix
Register Description
Field
Bits
SDRSELASK 5:4
SDRSELFSK 3:2
SDLORSEL 1:0
Type
w
w
w
Description
A_SIGDET0/1 range selection factor for ASK. The selected signal
detector value is multiplied by the 2^range selection factor. Use the
right setting to fit the measured SPWR value.
00_B 6
01_B 7
10_B 7+6
11_B 8
Reset: 3_H
A_SIGDET0/1 range selection factor for FSK. The selected signal
detector value is multiplied by the 2^range selection factor. Use the
right setting to fit the measured SPWR value.
00_B 2
01_B 4
10_B 6
11_B 8
Reset: 3_H
SIGDETLO range selection factor. The selected signal detector
value is multiplied by the 2^range selection factor. Use the right
setting to fit the measured SPWR value.
00_B 2
01_B 4
10_B 6
11_B 8
Reset: 3_H
Signal Detector Configuration Register
A_SIGDETCFG
Signal Detector Configuration Register

8186('

Offset
043_H


5HV
Reset Value
00_H

6'/25(
Z

6'&17
Z

6'&17
Z
Field
Bits
UNUSED
7:4
SDLORE
2
Data Sheet
Type
-
w
Description
UNUSED
Reset: 0_H
Source selection of Signal Power Readout Register
0_B Signal Power for A_SIGDET0/1
1_B Signal for minimal usable FSK deviation, the sigdet low level can
be read out with SPWR register
Reset: 0_H
226
V4.0, 2010-02-19