SI3000

Si3000 VO I C E B A N D C O D E C W I T H M I C R O P H O N E /S P E A K E R D R I V E Features Complete voice codec solution includes the following: 84 dB ADC Dynamic Range 84 dB DAC Dynamic Range 4–12 kHz Sample Rates 30 dB Microphone Pre-Amp Programmable Input Gain/ Attenuation: –34.5 dB to 12 dB Programmable Output Gain/ Attenuation: –34.5 dB to 12 dB Support for 32 Ω Headphones 3:1 Analog Input Mixer 3.3–5.0 V Power Supply Direct Serial Interface to DSPs Direct Connection to Si303x/44/56, serial interface DAA chipsets Low profile 16-Pin SOIC Package Lead-free / RoHS-compliant package available Ordering Information: See page 30. Applications Modem Voice Channel (DSVD) Telephony Speech Processing General Purpose Analog I/O Pin Assignments Si3000 SPKRR MBIAS HDST SDI SDO FSYNC MCLK SCLK 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 SPKRL LINEO GND VA VD LINEI MIC RESET 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 Ω headphones. The Si3000 can be connected directly to the Si3034, Si3035, Si3044 and Si3056 North American and international DAA chipsets through its daisy-chaining serial interface. 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 Si3000 0/+10/+20/+30 dB High Pass Filter MBIAS MI...