TDA5251XT Infineon Technologies, TDA5251XT Datasheet - Page 65

• Manufacturer Part Number: TDA5251XT
• Manufacturer: Infineon Technologies

Specifications of TDA5251XT

• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 4.4mm
• Product Length (mm): 9.7mm
• Operating Supply Voltage (min): 2.1V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / Rohs Status: Compliant

Figure 3-27
Figure 3-28
3.7
In order to detect valid data two criteria must be fulfilled.
One criteria is the data rate, which can be set in register 06h and 07h. The other one is the received
RF power level, which can be set in register 08h in form of the RSSI threshold voltage. Thus for
using the data valid detection FSK modulation is recommended.
Data Sheet
Vcc
Signal
0
Power ON
Data Valid Detection
Peak detector - power down mode
Power down mode
Neg. Peak Detector (pin12)
Pos. Peak Detector (pin13)
Threshold (pin14)
Power Down
65
Power ON
2,2ms
Peak Detector Power ON
Data Signal
TDA5251 F1
Version 1.1
Application
PkD_PWDN3.wmf
2007-02-26
PKD_PWDN.wmff
t