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News/Events > CHR2270-QRG a multi-function transponder
CHR2270-QRG a multi-function transponder
CHR2270-QRG a multi-function transponder

The CHR2270-QRG is a reflective transponder operating at 5.8GHz for short and medium range automotive communication (DSRC), Electronic Traffic Control (ETC) and identification transponders. This product is designed using SiGe technology and features a very low power consumption which can result in 5 years battery life.

The CHR2270-QRG features numerous assets:

  •     Single RF antenna port for compact systems
  •      Integrated high selectivity wake-up
  •     Ultra Low Standby current
  •     3V battery bias voltage range
  •     Downlink RF input power monitoring
  •     Uplink gain control
  •     -25°C to +90°C operating temperature range
  •     Very good performance over temperature,
  •     More than 5 years battery life,
  •     Plastic package (QFN-24),
  •     ESD protection.

Three operating modes are implemented:

  1. STANDBY: ultra low current AM detector, providing a wake-up signal (high selectivity system avoiding untimely wake-up) on SB-Out output.
  2. DOWLINK: low current AM detector, with optimized IF bandwidth.
  3. UPLINK: multiplier based on a passive reflective mixer.

The circuit is designed to be fully compliant with ETSI EN 300674, ETSI 200674 and Italian norms.

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