tda5235 Infineon Technologies Corporation, tda5235 Datasheet - Page 32

• Manufacturer Part Number: tda5235
• Description: Enhanced Sensitivity Double-configuration Receiver With Digital Baseband Processing
• Manufacturer: Infineon Technologies Corporation

When AGC is activated, RSSI is untrimmed, IFATT <= 5.6dB and the same RSSI offset
should be applied for all bandpass filter settings, then the settings in
applied, where a small reduction of the RSSI input range can be observed.
Table 2
AGC Threshold Hysteresis = 21.3 dB
AGC Digital RSSI Gain Correction = 15.5 dB
1) Note: This value needs to be used for calculating the register value
For the full RSSI input range, the values in
Table 3
AGC Threshold Hysteresis = 21.3 dB
AGC Digital RSSI Gain Correction = 15.5 dB
1) Note: This value needs to be used for calculating the register value
Data Sheet
300 kHz
200 kHz
125 kHz
300 kHz
200 kHz
125 kHz
80 kHz
50 kHz
80 kHz
50 kHz
BPF
BPF
Compensation
Compensation
(untrimmed)
(untrimmed)
AGC Settings 1
AGC Settings 2
RSSI Offset
RSSI Offset
-18
-18
-18
32
32
32
32
32
32
4
1)
1)
Threshold
Threshold
63.9 dB
63.9 dB
63.9 dB
51.1 dB
51.1 dB
63.9 dB
51.1 dB
51.1 dB
51.1 dB
51.1 dB
Offset
Offset
AGC
AGC
32
Table 3
Threshold
Threshold
AGC
AGC
Low
Low
11
11
10
8
6
5
9
5
9
9
can be applied.
Threshold
Threshold
AGC
AGC
Up
Up
4
2
0
6
5
1
7
5
5
5
Functional Description
RSSI Input
Reduction
Table 2
V1.0, 2010-02-19
Range
2.8 dB
5 dB
5 dB
5 dB
0 dB
TDA5235
can be