TDMA Receivers Come With Sleep Mode

With a power down or sleep mode to extend standby and talk times in wireless applications, the TQ5122 and TQ5622 GaAs TDMA-mode receiver ICs are for cellular frequency band and PCS frequency band, respectively. The devices are for use in IS-136, TDMA or equivalent wireless handsets. They include an LNA, mixer, LO buffer, and IF buffer amplifier and operate from a single 2.8V supply. The ICs are designed to minimize the number of bypass and matching elements to keep board space and cost to a minimum. Evaluation boards are available.