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发明公开
CN109101849A 集成电路及具有经改进ASK解调的应答器电路 审中-实审 转让

集成电路及具有经改进ASK解调的应答器电路
摘要：
本发明大体上涉及集成电路及具有经改进ask解调的应答器电路。揭示的实例包含RF应答器电路(100)，其具有：信号输入节点(106、108)；整流器电路(110)，其具有功率晶体管及电流镜电路(131)以生成整流器镜电流信号(k1*Ichg)；限制器电路(109)，其具有限制器晶体管及电流镜电路(132)以生成限制器镜电流信号(k2*Ilim)；及解调器电路(130)，其根据所述整流器及限制器镜电流信号(k1*Ichg、k2*Ilim)解调在所述信号输入节点(106、108)处接收到的移幅键控ASK RF信号(LFa、LFb)，以生成表示在所述RF信号(LFa、LFb)中存在或缺少阈值量的能量的二进制解调器数据信号(DEMOD DATA)。
摘要（英）：

The invention relates generally to integrated circuits and transponder circuitry with improved ask demodulation. Disclosed examples include an RF transponder circuit (100) with signal input nodes (106, 108), a rectifier circuit (110) with a power transistor and a current mirror circuit (131) to generate a rectifier mirror current signal (k1*Ichg), a limiter circuit (109) with a limiter transistorand a current mirror circuit (132) to generate a limiter mirror current signal (k2*Ilim), and a demodulator circuit (130) to demodulate an amplitude shift keying (ASK) RF signal (LFa, LFb) received atthe signal input nodes (106, 108) according to the rectifier and limiter mirror current signal (k1*Ichg, k2*Ilim) to generate a binary demodulator data signal (DEMOD DATA) representing the presence or absence of a threshold amount of energy in the RF signal (LFa, LFb).

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