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Updated at 02/11/2025 10:30:15(UTC+8)

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Description

The TDA5250 is a low power consumption single chip FSK/ASK Wireless Transceiver for half duplex low data rate communication in the 868 to 870MHz band. The IC offers a very high level of integration and needs only a few external components. It contains a highly efficient power amplifier, a low noise amplifier (LNA) with AGC, a double balanced mixer, a complex direct conversion stage, 1/Q limiters with RSSI generation, an FSK demodulator, a fully integrated VCO and PLL synthesizer, a tuneable crystal oscillator, an onboard data filter, a data comparator (slicer), positive and negative peak detectors, a data rate detection circuit and a 2/3-wire bus interface. Additionally there is a power down feature to save battery power.
Low supply current
Power down mode with very low supply current consumption
FSK and ASK modulation and demodulation capability
Fully integrated VCO/PLL synthesizer and loop filter on-chip with on chip crystal oscillator tuning
l²C/3-wire µController interface
On-chip low pass channel select filter and data filter with tuneable bandwidth
Data slicer with self-adjusting threshold and 2 peak detectors
FSK sensitivity <-109dBm, ASK sensitivity <-109dBm
Transmit power up to +13dBm
Data rates up to 64kbps Manchester encoded
Self-polling logic with ultra fast data rate detection

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TDA5250 Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	38 Pin
Case/Package	TSSOP-38
Frequency	868 MHz
Supply Voltage (DC)	2.10V (min)
Number of Positions	38 Position
Data Rate	64.0 kbps
Output Power	13 dBm
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	2.1V ~ 5.5V
Supply Voltage (Max)	5.5 V
Supply Voltage (Min)	2.1 V
	Show
Size-Height	1 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Cut Tape (CT)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

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