RECEIVER AND COMMUNICATION TERMINAL

摘要

A receiver and a communication terminal which can be used in a plurality of communication methods. The receiver and the communication terminal include an antenna block (1), high frequency filter block (2), a high frequency amplifier (3), a first orthogonal mixer (4), a first local oscillator (5), a first channel selection filter block (6), a variable gain amplifier (7), a second orthogonal mixer (8) used in the TDMA method, a second local oscillator (9), a selector switch block (10) for switching connection to the variable gain amplifier (7) or to the second orthogonal mixer (8), a second channel selection filter block (11), and decoding block (12) having AD converters (12a, 12b), an RSSI (12c), an AGC (12d) for gain−controlling the high frequency amplifier (3) and the variable gain amplifier (7), a CDMA decoder (12e), a TDMA decoder (12f), and a receiver mode setting block (12g) for setting the first channel selection filter block (6) according to the communication method.