The TLV320AIC22CPTR contains two coders/decoders (codecs) for voice applications, including voice over internet protocol (VoIP). It features two analog-to-digital converter (ADC) channels and two digital-to-analog converter (DAC) channels that can be connected to a handset, headset, speaker, microphone, or a subscriber line via an analog crosspoint.
The TLV320AIC22CPTR has a flexible serial interface that allows the two channels of the TLV320AIC22CPTR to be interfaced to a single multichannel buffered serial port (McBSP) of the external digital signal processor (DSP). The two channels share the digital interface at different time slots. Up to four TLV320AIC22CPTR units can be cascaded together to obtain eight channels. For control purposes, either the serial interface or the inter-integrated circuit (I2C) interface can be used. Programmable-gain amplifiers (PGAs), preamp gain, microphone bias voltages, and analog crosspoint are programmed through the serial interface or the I2C interface. The TLV320AIC22CPTR can be powered down, via a dedicated terminal or by using software control, to reduce power dissipation.
The TLV320AIC22CPTR is available in a 48-terminal LQFP package and is characterized for operation from –40°C to 85°C.
Feature
Two 16-Bit Analog-to-Digital Converters (ADCs)
Two 16-Bit Digital-to-Analog Converters (DACs)
Programmable Input/Output Gain
Analog Crosspoint to Connect the Two Coders/Decoders (Codecs) to Any of the I/O Ports – Controlled Through the Serial Port or the Inter-Integrated Circuit (I2C) Bus
8-Bit A-Law/μ-Law Companded Data or 16-Bit Linear Data Complying With G.711 Standard
Filters Comply With G.712 and G.722 Standards
Programmable Analog-to-Digital and Digital-to-Analog Conversion Rate
Typical 77-dB Signal-to-Noise + Distortion for ADC
Typical 78-dB Signal-to-Noise + Distortion for DAC
Supports 8- and 16-kHz Sampling Rates
Preamplifiers for Microphone, Handset, Headset, and Speakerphone Gain Selectable Via the Serial Port or I2C Bus
2.5-V Microphone Bias Voltage
Seamless Interface to a Single Multichannel Buffered Serial Port (McBSP) of a C54x or a C6x Digital Signal Processor (DSP)
Four TLV320AIC22C ICs Can Be Cascaded Together to Allow up to Eight Channels
2s-Complement Data Format
Differential Outputs
Typical Low Crosstalk < –85 dB
Hardware/Software Power Down
Independent Power Down for Drivers
Single 3.3-V Supply Operation
204-mW Typical Power Consumption
Available in 48-Terminal Low-Profile Plastic Quad Flatpack (LQFP) Package
Catalogue
FPGA / CPLD
Memory
MOS 
MCU 
DSP
OCEP
Secondary 
Other 
