FEATURES
D 2.7-V Operation D Two Differential Microphone Inputs, One Differential Earphone Output, and One Single-Ended Earphone Output D Programmable Gain Amplifiers for Transmit, Receive, Sidetone, and Volume Control D Earphone Mute and Microphone Mute D On-Chip I2C Bus, Which Provides a Simple, Standard, Two-Wire Serial Interface With Digital ICs D Programmable for 15-Bit Linear Data or 8-Bit Companded (µ-Law or A-Law) Data D Available in a 32-Pin Thin Quad Flatpack (TQFP) Package and an 80-Pin GQE MicroStar Juniort Ball Grid Array (BGA) D Designed for Analog and Digital Wireless Handsets and Telecommunications APPLICATIONS
D Dual-Tone Multifrequency (DTMF) and Single Tone Generator D Pulse Density Modulated (PDM) Buzzer Output APPLICATIONS
D Digital Handset D Digital Headset D Cordless Phones D Digital PABX D Digital Voice Recording DESCRIPTION
The PCM codec is designed to perform transmit encoding analog/digital (A/D) conversion, receive decoding digital/analog (D/A) conversion, and transmit and receive filtering for voice-band communications systems.
Texas Instruments
