TDA5225 Datasheet, PDF (152/176 Pages) Infineon Technologies AG – Enhanced Sensitivity Multi-Channel Quad-Configuration Receiver

TDA5225
Appendix
Register Description
Field
Bits
Type Description
RFOFF
4
IFATT
3:0
w
Switch off RF-path (for RSSI trimming)
0_B RF path enabled
1_B RF path disabled
Reset: 0_H
w
Adjust IF attenuation from LNA_IN to IF_OUT (Double-Down
Conversion / Single-Down Conversion)
Used to trim out external component tolerances.
0000_B 0 dB / n.u.
0001_B 0.8 dB / n.u.
0010_B 1.6 dB / n.u.
0011_B 2.4 dB / n.u.
0100_B 3.2 dB / 0 dB
0101_B 4.0 dB / 0.8 dB
0110_B 4.8 dB / 1.6 dB
0111_B 5.6 dB / 2.4 dB
1000_B 6.4 dB / 3.2 dB
1001_B 7.2 dB / 4.0 dB
1010_B 8.0 dB / 4.8 dB
1011_B 8.8 dB / n.u.
1100_B 9.6 dB / n.u.
1101_B 10.4 dB / n.u.
1110_B 11.2 dB / n.u.
1111_B 12.0 dB / n.u.
Reset: 7_H
BPF Calibration Configuration Register 0
BPFCALCFG0
BPF Calibration Configuration Register 0
Offset
08A_H




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Z
Field
Bits
UNUSED
7:5
BPFCALST 3:0
Type
-
w
Description
UNUSED
Reset: 0_H
BPF Calibration Time (use default = 07_H)
Min: 0h= Txtal * 80 * 7 * (0 + 4)
Max: Fh= Txtal * 80 * 7 * (15 + 4)
Reset: 7_H
BPF Calibration Configuration Register 1
Reset Value
07_H

Data Sheet
152
V1.0, 2010-02-19