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TH71221ELQBAA-000TU Datasheet(PDF) 1 Page - Melexis Microelectronic Systems |
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TH71221ELQBAA-000TU Datasheet(HTML) 1 Page - Melexis Microelectronic Systems |
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1 / 44 page  TH71221 27 to 930MHz FSK/FM/ASK Transceiver 39010 071221 Page 1 of 44 Data Sheet Rev. 009 Nov/15 Features Single chip solution with only a few external components Stand-alone fixed-frequency user mode Programmable multi-channel user mode Low current consumption in active mode and very low standby current PLL-stabilized RF VCO (LO) with internal varactor diode Lock detect output in programmable user mode On-chip AFC for extended input frequency acceptance range 3wire bus serial control interface FSK/ASK mode selection FSK for digital data or FM for analog signal reception RSSI output for signal strength indication and ASK reception Peak detector for ASK detection Switchable LNA gain for improved dynamic range Automatic PA turn-on after PLL lock ASK modulation achieved by PA on/off keying 32-pin Quad Flat Lead Package (QFN) Ordering Code Product Code Temperature Code Package Code Option Code Packing Form Code TH71221 E LQ BAA-000 RE TH71221 E LQ BAA-000 TU Legend: Temperature Code: E for Temperature Range -40°C to 85°C Package Code: LQ for QFN, Packing Form: RE for Reel, TU for Tube Ordering example: TH71221ELQ-BAA-000-RE Application Examples General bi-directional half duplex digital data RF signaling or analog signal communication Remote Keyless Entry (RKE) Low-power telemetry systems Alarm and security systems Wireless access control Garage door openers Networking solutions Active RFID tags Remote controls Home and building automation Pin Description General Description The TH71221 is a single chip FSK/FM/ASK transceiver IC. It is designed to operate in low-power multi- channel programmable or single-channel stand-alone, half-duplex data transmission systems. It can be used for applications in automotive, industrial-scientific-medical (ISM), short range devices (SRD) or similar appli- cations operating in the frequency range of 300 MHz to 930 MHz. In programmable user mode, the trans- ceiver can operate down to 27 MHz by employing an external VCO varactor diode. bottom top IN_IFA IN_DEM INT2/PDO RSSI OUT_DEM OUT_DTA INT1 VCC_IF FS0/SDEN VEE_PLL VCC_PLL FS1/LD VEE_DIG LF TNK_LO TH71221 |
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