DESCRIPTION
●The ETC5064 (µ-law), ETC5067 (A-law) are mono lithic PCM CODEC/FILTERS utilizing the A/D and
●D/A conversion architecture shown in the Block Diagrams and a serial PCM interface. The devices are
●fabricated using double-poly CMOS process.
●.COMPLETE CODEC AND FILTERING SYSTEM INCLUDING :
● -Transmit high-pass and low-pass filtering.
● -Receive low-pass filter with sin x/x correction.
● -Active RC noise filter.
● -µ-law or A-law compatible CODER and DECODER.
● -Internal precision voltage reference.
● -Serial I/O interface.
● -Internal auto-zero circuitry.
● -Receive push-pull power amplifiers.
●.µ-LAW ETC5064
●.A-LAW ETC5067
●.MEETS OR EXCEEDS ALL D3/D4 AND CCITT SPECIFICATIONS.
●.±5 V OPERATION.
●.LOW OPERATING POWER-TYPICALLY 70 mW
●.POWER-DOWN STANDBY MODE-TYPICALLY 3 mW
●.AUTOMATIC POWER DOWN
●.TTL OR CMOS COMPATIBLE DIGITAL INTERFACES
●.MAXIMIZES LINE INTERFACE CARD CIRCUIT DENSITY
●.0°C TO 70°C OPERATION: ETC5064/67
●.–40°C TO 85°C OPERATION: ETC5064-X/67-X
