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TLV320AIC22C-TLV320AIC22CPT-TLV320AIC22CPTR Fast Delivery,Good Price
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Partno Mfg Dc Qty AvailableDescript
TLV320AIC22CTIN/a160avaiDual VoIP Codec
TLV320AIC22CPTTIN/a258avaiDual VoIP Codec
TLV320AIC22CPTRTIN/a258avaiDual VoIP Codec
TLV320AIC22CPTRN/a10avaiDual VoIP Codec


TLV320AIC22CPTR ,Dual VoIP Codec           SPAS041B – OCTOBER 2001 – REVISED JANUARY 2003 T ..
TLV320AIC22CPTR ,Dual VoIP Codec           SPAS041B – OCTOBER 2001 – REVISED JANUARY 2003 T ..
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TLV320AIC22C-TLV320AIC22CPT-TLV320AIC22CPTR
Dual VoIP Codec
Analog Crosspoint to Connect the TwoCoders/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
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 120-mW Typical Power Consumption Available in 48-Terminal Low-Profile Plastic
Quad Flatpack (LQFP) Package

description

The TLV320AIC22C 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 TLV320AIC22C has a flexible serial interface that allows the two channels of the TLV320AIC22C 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 TLV320AIC22C units can be
cascaded together to obtain eight channels. For control purposes, either the serial interface or the
inter-integrated circuit (I2 C) 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 TLV320AIC22C can be powered down, via a dedicated terminal or by using software control, to
reduce power dissipation.
The TLV320AIC22C is available in a 48-terminal LQFP package and is characterized for operation from –40°C
to 85°C.
ORDERING INFORMATION

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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