tda5251f1 Infineon Technologies Corporation, tda5251f1 Datasheet - Page 27

• Manufacturer Part Number: tda5251f1
• Description: Ask/fsk 315mhz Wireless Transceiver
• Manufacturer: Infineon Technologies Corporation

Confidential
Subaddress Organization
Table 2-13
Table 2-14
Data Byte Specification
Table 2-15
Note D3: Function is only active in selfpolling and timer mode. When D3 is set to LOW the RX path
is not enabled if PwdDD pin is set to LOW. A delayed setting of D3 results in a delayed power ON
of the RX building blocks.
Preliminary Specification
MSB
MSB
1
1
0
0
0
0
0
0
0
0
0
0
0
0
D15
D14
D13
D12
D11
D10
Bit
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
F_COUNT_MODE
0
0
RX_DATA_INV
0
0
0
0
0
0
0
0
0
0
0
0
Sub Address 00H: CONFIG
ADC_MODE
Sub Addresses of Data Registers Write
Sub Addresses of Data Registers Read
TESTMODE
ASK_NFSK
LNA_GAIN
CONTROL
Function
PA_PWR
MODE_2
MODE_1
RX_NTX
CLK_EN
ALL_PD
SLICER
D_OUT
EN_RX
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0
0
1
1
1
1
0
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
1
1
LSB HEX
0
1
LSB
0
1
0
1
0
1
0
1
0
1
0
1
0= disable receiver, 1= enable receiver (in self polling and timer mode) *
80h
81h
0= RX/TX and ASK/FSK external controlled, 1= Register controlled
HEX
0= CLK off during power down, 1= always CLK on, ever in PD
0Dh
0Eh
0Fh
00h
01h
02h
03h
04h
05h
06h
07h
08h
Function
STATUS
XTAL_TUNING
XTAL_CONFIG
COUNT_TH1
COUNT_TH2
0= slave or timer mode, 1= self polling mode
ADC
BLOCK_PD
OFF_TIME
RSSI_TH3
ON_TIME
Function
CLK_DIV
CONFIG
0= normal operation, 1= all Power down
0= no Data inversion, 1= Data inversion
0= Data out if valid, 1= always Data out
0= low TX Power, 1= high TX Power
FSK
LPF
0= normal operation, 1=Testmode
0= Lowpass, 1= Peak Detector
0= slave mode, 1= timer mode
27
0= one shot, 1= continuous
0= one shot, 1= continuous
0= low gain, 1= high gain
0= FSK, 1=ASK
Results of comparison: ADC & WINDOW
0= TX, 1=RX
Description
Configuration and Ratio of clock divider
I/Q and data filter cutoff frequencies
Higher threshold of window counter
Lower threshold of window counter
General definition of status bits
Building Blocks Power Down
OFF time of wakeup counter
ON time of wakeup counter
Threshold for RSSI signal
Values for FSK-shift
XTAL configuration
Nominal frequency
ADC data out
Description
Description
Functional Description
TDA5251 F1
Version 1.0
2003-02-18
Bit Length
Bit Length
Default
0
0
0
0
0
1
0
0
1
1
1
1
1
0
0
1
8
8
16
16
16
16
16
16
16
16
8
8
8
8