Rev. 1.4 12/10 Copyright © 2010 by Silicon Laboratories Si3000
Si3000
VOICEBAND CODEC WITH MICROPHONE/SPEAKER DRIVE
Features
Complete voice codec solution includes the following:
Applications
Description
The Si3000 is a complete voice band audio codec solution that offers high integration by incorporating programmable input and output gain/attenuation, a microphone bias circuit, handset hybrid circuit, and an output drive for 32 Ă headphones. The Si3000 can be connected directly to the Si3034, Si3035, Si3044, and Si3056 North American and international DAA chipsets through their daisy-chaining serial interface. It also serves as a companion chip to a FAT ISOmodem chipset with voice features, providing hardware support for a handset and speaker phone. The device operates from a single 3.3 to 5 V power supply and is available in a 16-pin small outline package (SOIC).
Functional Block Diagram
ƒÞ84 dB ADC Dynamic Range
ƒÞ84 dB DAC Dynamic Range
ƒÞ4–12 kHz Sample Rates
ƒÞ30 dB Microphone Pre-Amp
ƒÞProgrammable Input Gain/Attenuation: –34.5 dB to 12 dB
ƒÞProgrammable Output Gain/Attenuation: –34.5 dB to 12 dB
ƒÞSupport for 32 ƒÇ Headphones
ƒÞ3:1 Analog Input Mixer
ƒÞ3.3–5.0 V Power Supply
ƒÞDirect Serial Interface to DSPs
ƒÞDirect Connection to Si303x/44/56, serial interface DAA chipsets
ƒÞLow profile 16-Pin SOIC Package
ƒÞRoHS-compliant package available
ƒÞModem Voice Channel (DSVD)
ƒÞTelephony
ƒÞSpeech Processing
ƒÞGeneral Purpose Analog I/O
ƒÞCompanion chip for FDX ISOmodems with voice features
Digital InterfaceProg Gain/AttenuatorADCDACHandset HybridHeadphone DriverHigh Pass Filter0/+10/+20/+30 dB0/+10/+20 dB0/–6/–12/–18 dB0/–6/–12/–18 dBMBIASMICLINEIHDSTSPKRRSPKRLLINEOMCLKSCLKFSYNCSDISDORESETProg Gain/AttenuatorSi3000
Ordering Information:
See page 29.
Pin Assignments
Si3000
21345678151614131211109SPKRRMBIASHDSTSDISDOMCLKSCLKLINEOGNDVAVDLINEIMICRESETSPKRLFSYNC