SI3000-C データシートの表示（PDF） - Silicon Laboratories
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SI3000-C Datasheet PDF : 34 Pages
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Si3000
VOICEBAND CODEC WITH MICROPHONE/SPEAKER DRIVE
Features
Complete voice codec solution includes the following:
84 dB ADC Dynamic Range Support for 32 Headphones
84 dB DAC Dynamic Range 3:1 Analog Input Mixer
4–12 kHz Sample Rates
3.3–5.0 V Power Supply
30 dB Microphone Pre-Amp Direct Serial Interface to DSPs
Programmable Input Gain/ Direct Connection to Si303x/44/56,
Attenuation: –34.5 dB to 12 dB serial interface DAA chipsets
Programmable Output Gain/ Low profile 16-Pin SOIC Package
Attenuation: –34.5 dB to 12 dB RoHS-compliant package
available
Applications
Modem Voice Channel (DSVD) Speech Processing
Telephony
General Purpose Analog I/O
Companion chip for FDX
ISOmodems with voice features
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 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
Ordering Information:
See page 29.
Pin Assignments
Si3000
SPKRR 1
MBIAS 2
HDST 3
SDI 4
SDO 5
FSYNC 6
MCLK 7
SCLK 8
16 SPKRL
15 LINEO
14 GND
13 VA
12 VD
11 LINEI
10 MIC
9 RESET
MCLK
SCLK
FSYNC
SDI
SDO
RESET
Digital
Interface
Si3000
0/+10/+20/+30 dB
Prog Gain/
Attenuator
Prog Gain/
Attenuator
ADC
DAC
0/+10/+20 dB
Handset
Hybrid
0/–6/–12/–18 dB
Headphone
Driver
0/–6/–12/–18 dB
MBIAS
MIC
LINEI
HDST
SPKRR
SPKRL
LINEO
Rev. 1.4 12/10
Copyright © 2010 by Silicon Laboratories
Si3000
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