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TLV320AIC22C 双 VoIP 编解码器

	TLV320AIC22C
SNR DAC / SNR ADC(Typ)(dB)	78 / 77
# DACs / # ADCs	2 / 2
# Inputs / # Outputs	5 / 4
Sampling Rate(Max)(kHz)	16
Resolution(Bits)	16
Digital Audio Interface	DSP
Control Interface	SPI,I2C
Analog Supply(V)	3 - 3.6
Digital Supply(V)	3 - 3.6
Pd(Typ)(mW)	120
Operating Temperature Range(°C)	-40 to 85
Pin/Package	48LQFP

TLV320AIC22C 描述

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.

TLV320AIC22C 特性

• 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

TLV320AIC22C 芯片订购指南

器件	状态	温度 (oC)	价格（美元）	封装 | 引脚	封装数量 | 封装载体	丝印标记
TLV320AIC22CPT	ACTIVE	-40 to 85	3.70 | 1ku	LQFP (PT) | 48	250	320AIC22C TLV
TLV320AIC22CPTR	ACTIVE	-40 to 85	3.70 | 1ku	LQFP (PT) | 48	1000	320AIC22C TLV

TLV320AIC22C 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
TLV320AIC22CPT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-4-260C-72HRS/Level-3-220C-168HRS		TLV320AIC22CPT
TLV320AIC22CPTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-4-260C-72HRS/Level-3-220C-168HRS		TLV320AIC22CPTR

TLV320AIC22C 应用技术支持与电子电路设计开发资源下载

1. TLV320AIC22C 数据资料 dataSheet 下载.PDF
2. TI 德州仪器音频编解码器产品选型与价格参考 . xls
3. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
4. 所选封装材料的热学和电学性质 (PDF 645 KB)
5. 高速数据转换 (PDF 1967 KB)
6. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
7. Analog-to-Digital Converter Grounding Practices Affect System Performance (PDF 56 KB)
8. Principles of Data Acquisition and Conversion (PDF 50 KB)
9. Interleaving Analog-to-Digital Converters (PDF 64 KB)
10. What Designers Should Know About Data Converter Drift (PDF 95 KB)
11. Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (PDF 70 KB)
12. Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (PDF 105 KB)

TLV320AIC22C 工具与软件

名称	型号	公司	工具/软件类型
音频的快速搜索选择工具	AUDIO_SELECTION_TOOL	Texas Instruments	免费评估工具
针对 Code Composer Studio 的 DCPFREETOOL 软件插件	DCPFREETOOL	Texas Instruments	实用程序/插件
TLV320AIC22C 评估模块 (EVM) 和 USB 主板	TLV320AIC22CEVM-PDK	Texas Instruments	开发电路板/EVM
用于音频转换器的软件驱动程序	CODECDRIVERS-SW	Texas Instruments	应用软件