(China (Mainland))
Product Summary
The TCM1250AP is a single-chip PCM codec (pulse-code-modulated encoders and decoders) and PCM line filter. The TCM1250AP provide all the functions required to interface a full-duplex (4-wire) voice telephone circuit with a TDM (time-division-multiplexed) system. Primary applications include: (1)Line interface for digital transmission and switching of T1 carrier, PABX, and central office telephone systems; (2)Subscriber line concentrators; (3)Digital-encryption systems; (4)Digital voice-band data-storage systems; (5)Digital signal processing.
Parametrics
TCM1250AP absolute maximum ratings: (1)Supply voltage range, VCC (see Note 1): –0.3 V to 15 V; (2)Output voltage range, VO: –0.3 V to 15 V; (3)Input voltage range, VI: –0.3 V to 15 V; (4)Digital ground voltage range: –0.3 V to 15 V; (5)Continuous total dissipation at (or below)25°C free-air temperature: 1375 mW; (6)Storage temperature range, Tstg: –65°C to 150°C; (7)Lead temperature 1,6 mm (1/16 inch)from case for 10 seconds: DW or N package: 260 ℃.
Features
TCM1250AP features: (1)Reliable silicon-gate cmos technology; (2)Low power consumption: operating mode: 80 mW. typical power-down mode: 5 mW typical; (3)Excellent power-supply rejection ratio over frequency range of 0 Hz to 50 kHz; (4)No external components needed for sample, hold, and autozero functions; (5)Precision internal voltage references; (6)Recommended for direct voice applications.
Diagrams
