Codec (coder-decoder)
Silicon Laboratories

The Si3000 is a complete solution for voice I/O such as handsets in multi-function printers. It can be connected directly to any high-speed, ISOmodem system-side chip to support a telephone handset, and an extended AT command set is available to control the Si3000.

Features

84 dB dynamic range A/D and D/A converter with 16-bit resolution
Microphone input; programmable gain of 0, +10, +20, +30 dB
Line level input (1 V RMS)
3:1 analog input mixer
Integrated handset hybrid
Digital input/output gain; programmable range of +12.5 to -34.5 dB
Line level output (1 V RMS)
Headphone output capable of driving a 32 ohm load
1.5 dB step resolution
50 mW power consumption
Low profile 16-pin small outline package (SOIC)

Applications

Modems with voice channel - speakerphone
PC Card Modems with Cellular Telephone Support
Web Phone
Fax Machines with handset support
Voice Recognition Systems
Consumer Telephony