tda5255e1 Infineon Technologies Corporation, tda5255e1 Datasheet - Page 59

• Manufacturer Part Number: tda5255e1
• Description: Ask/fsk 434mhz Wireless Transceiver
• Manufacturer: Infineon Technologies Corporation

Confidential
Figure 3-20
Figure 3-21
3.4
The Data-Filter should be set to values corresponding to the bandwidth of the transmitted Data
signal via the D4 to D7 bits of the LPF register (subaddress 03H).
Preliminary Specification
Data Filter
I/Q Filter Characteristics
IQ Filter and frequency characteristics of the receive system
-f
-2 0
-3 0
-4 0
-5 0
-6 0
-7 0
-8 0
-10
10
0
10
IQ Filter
-f
3dB
10 0
effective channel bandwidth
f [kH z]
59
10 0 0
50kHz
1 00kHz
1 50kHz
200kHz
250kHz
350kHz
IQ Filter
f
3dB
10 0 0 0
TDA5255 E1
f
Version 1.1
Application
iq_filter_curve.wmf
2002-11-28
iq_char.wmf