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 (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 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.

• 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

C54x and TMS320C54x are trademarks of Texas Instruments Incorporated.

• Number of DAC channels (#)
• 1
• Digital audio interface
• DSP
• Analog inputs
• 5
• Sampling rate (Max) (kHz)
• 16
• Rating
• Catalog
• ADC SNR (Typ) (dB)
• 77
• DAC SNR (Typ) (dB)
• 78

TLV320AIC22C的完整型号有：TLV320AIC22CPT、TLV320AIC22CPTR，以下是这些产品的关键参数及官网采购报价：

TLV320AIC22CPT，工作温度：-40 to 85，封装：LQFP (PT)-48，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-4-260C-72HRS/Level-3-220C-168HRS，引脚镀层/焊球材料：NIPDAU，TI官网TLV320AIC22CPT的批量USD价格：4.591（1000+）

TLV320AIC22CPTR，工作温度：-40 to 85，封装：LQFP (PT)-48，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-4-260C-72HRS/Level-3-220C-168HRS，引脚镀层/焊球材料：NIPDAU，TI官网TLV320AIC22CPTR的批量USD价格：3.826（1000+）

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