TDA5251 Infineon Technologies, TDA5251 Datasheet - Page 29

• Manufacturer Part Number: TDA5251
• Description: TXRX FSK/ASK SGL LP TSSOP-38
• Manufacturer: Infineon Technologies
• Type: Transceiverr

Specifications of TDA5251

• Package / Case: 38-TSSOP
• Frequency: 315MHz
• Data Rate - Maximum: 64kbps
• Modulation Or Protocol: ASK, FSK
• Applications: RKE, Remote Control Systems
• Power - Output: 13dBm
• Sensitivity: -109dBm
• Voltage - Supply: 2.1 V ~ 5.5 V
• Current - Receiving: 9.3mA
• Current - Transmitting: 14mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Operating Frequency: 0.35 MHz
• Operating Supply Voltage: 2.5 V, 3.3 V, 5 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• 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: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Compliant
• Other names: SP000014554; TDA5251; TDA5251INTR; TDA5251XT

Data Sheet
Table 2-22
Table 2-26
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Bit
D7
D6
D5
D4
D3
D2
D1
D0
COMP_0,5*HIGH
COMP_0,5*LOW
COMP_0,5*IN
COMP_HIGH
COMP_LOW
RSSI=TH3
RSSI>TH3
COMP_IN
Function
Function
SELECT
not used
TH3_5
TH3_4
TH3_3
TH3_2
TH3_1
TH3_0
Sub Address 08H: RSSI_TH3
Sub Address 80H: STATUS
Table 2-25
D15
D14
D13
D12
D11
D10
Bit
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Table 2-24
Bit
D7
D6
D5
D4
D3
D2
D1
D0
0= VCC, 1= RSSI
1 if RSSI value is greater than TH3
1 if 0,5*TH1 < data rate < 0,5*TH2
DATA_SLIC_PD
PEAK_DET_PD
Description
DATA_FIL_PD
WINDOW_PD
1 if RSSI value is equal TH3
I/Q_FIL_PD
QUAD_PD
1 if TH1 < data rate < TH2
XTAL_PD
Function
MIX2_PD
MIX1_PD
FSK-Ramp 0
FSK-Ramp 1
ADC_PD
Bipolar_FET
REF_PD
LNA_PD
PLL_PD
LIM_PD
1 if data rate < 0,5*TH1
1 if 0,5*TH2 < data rate
RC_PD
PA_PD
Function
1 if data rate < TH1
1 if TH2 < data rate
Description
Sub Address 0FH: BLOCK_PD
Sub Address 0EH: XTAL_CONFIG
Default
1
1
1
1
1
1
1
1
1= power down Band Gap Reference
1= power down Quadri Correlator
1= power down Window Counter
1= power down Power Amplifier
1= power down XTAL Oscillator
1= power down Peak Detectors
1= power down RC Oscillator
1= power down Data Slicer
1= power down Data Filter
1= power down I/Q Filters
1= power down I/Q Mixer
1= power down 1st Mixer
1= power down Limiter
only in bipolar mode
0= FET, 1=Bipolar
1= power down ADC
1= power down LNA
1= power down PLL
29
Table 2-23
Description
Description
not used
not used
not used
not used
not used
Table 2-27
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Function
PD_ADC
SELECT
RSSI_5
RSSI_4
RSSI_3
RSSI_2
RSSI_1
RSSI_0
Sub Address 0DH: CLK_DIV
Sub Address 81H: ADC
DIVMODE_1
DIVMODE_0
CLKDIV_3
CLKDIV_2
CLKDIV_1
CLKDIV_0
Function
not used
not used
Default
Functional Description
0
0
0
0
0
0
0
1
Default
ADC power down feedback Bit
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
SELECT feedback Bit
RSSI value Bit5
RSSI value Bit4
RSSI value Bit3
RSSI value Bit2
RSSI value Bit1
RSSI value Bit0
Description
TDA5251 F1
Version 1.1
2007-02-26
Default
0
0
0
0
1
0
0
0