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EVB7122
Evaluation Board for TH7122 and TH71221
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The TH7122 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 applications operating in the frequency range of 300 MHz to 930 MHz. In programmable user mode, the transceiver can operate down to 27 MHz by employing an external VCO varactor diode.
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Features and Benefits
- 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
- FSK for digital data or FM for analog signal reception
- FSK/ASK mode selection
- 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
- 3wire bus serial control interface
- EVB comes with a cable to connect to a PC’s LPT port
- EVB programming software is available on Melexis web site
Assets
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