Description

The SI3000-KS is a voice band audio codec solution developed by Silabs. It offers high integration with programmable input and output gain/attenuation, a microphone bias circuit, handset hybrid circuit, and output drive for 32Ω headphones. This model can be directly connected to the Si3034, Si3035, and Si3044 ISOcap North American and international DAA chipsets through its daisy-chaining serial interface. It operates on a single 3.3 to 5V power supply and comes in a 16-pin small outline package (SOIC).

Specifications and features

The SI3000-KS voice codec solution includes the following features:

• 84 dB ADC Dynamic Range
• 84 dB DAC Dynamic Range
• 4–12 kHz Sample Rates
• 30 dB Microphone Pre-Amp
• Programmable Input Gain/Attenuation: –36 dB to 12 dB
• Programmable Output Gain/Attenuation: –36 dB to 12 dB
• Support for 32 Ω Headphones
• 3:1 Analog Input Mixer
• 3.3–5.0 V Power Supply
• Direct Interface to DSPs
• Direct Connection to Si3034, Si3035, and Si3044 ISOcap™ DAA
• Low profile 16 Pin SOIC Package

Application Scenarios

The SI3000-KS voice codec solution is suitable for various applications, including:

• Modem Voice Channel (DSVD)
• Telephony
• Speech Processing
• General Purpose Analog I/O