CHR2270-QRG, a Multi-function Reflective Transponder Operating at 5.8GHz and Features a Very Low Power Consumption
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 multi-function reflective transponder is designed using SiGe technology and features a very low power consumption which can result in a 5-year 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℃ to +90℃ operating temperature range
Very good performance over temperature
More than 5 years of battery life
Plastic package (QFN-24)
ESD protection.
Three operating modes are implemented:
STANDBY: ultra-low current AM detector, providing a wake-up signal (high selectivity system avoiding untimely wake-up) on SB-Out output.
DOWLINK: low current AM detector, with optimized IF bandwidth.
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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