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参数资料
| 型号： | TLV320AIC22PTR |
| 厂商： | Texas Instruments, Inc. |
| 元件分类： | Codec |
| 英文描述： | DUAL VOIP CODEC |
| 中文描述： | 双VoIP编解码器 |
| 文件页数： | 1/55页 |
| 文件大小： | 763K |
| 代理商： | TLV320AIC22PTR |
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TLV320AIC22
DUAL VOIP CODEC
SLAS281B – JULY 2000 – REVISED JUNE 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Two 16-Bit Analog-to-Digital Converters
(ADC)
D Two 16-Bit Digital-to-Analog Converters
(DAC)
D Programmable Input/Output Gain
D Analog Crosspoint to Connect the Two
Coder/Decoders (Codecs) to Any of the I/O
Ports. Controlled Through the Serial Port or
the I2C Bus
D 8-Bit A-Law/-Law Companded Data or
16-Bit Linear Data Complying With G.711
Standard
D Programmable ADC and DAC Conversion
Rate
D Typical 77-dB Signal-to-Noise + Distortion
for ADC
D Typical 78-dB Signal-to-Noise + Distortion
for the DAC
D Typical 80-dB Dynamic Range
D All Typical Sampling Rates, Such as 7.2, 8,
8.229, 9.6, 10.285, 12, 14.4, and 16 kHz
Supported
D Preamplifiers for Microphone, Handset,
Headset, and Speaker Phone Gain
Selectable Via the Serial Port or I2C Bus
D 2.5-V Microphone Bias Voltage
D Seamless Interface to a Single Multichannel
Buffered Serial Port (McBSP) of a C54x or a
C6x DSP
D Four TLV320AIC22 ICs Can Be Cascaded
Together to Allow up to Eight Channels
D 2s-Complement Data Format
D Differential Outputs
D Typical Low Crosstalk < –85 dB
(Interchannel)
D Hardware/Software Power Down
D Independent Power Down for Drivers
D Single 3.3-V Supply Operation
D 120-mW Typical Power Consumption
D Packaged in 48-Pin Low-Profile Quad
Flatpack (LQFP) Package
description
The TLV320AIC22 is a dual coder/decoder (codec) for voice applications, including voice-over-internet protocol
(VOIP). It features two ADC conversion channels and two DAC conversion channels that can be connected to
a handset, headset, speaker, microphone, or a subscriber line via an analog crosspoint.
The TLV320AIC22 has a flexible serial interface that allows the two channels of the TLV320AIC22 to be
interfaced to a single multichannel buffered serial port (McBSP) of the DSP. The two channels share the digital
interface at different time slots. Up to four TLV320AIC22 units can be cascaded together to allow eight channels.
For control purposes, either the serial interface or the I2C interface can be used. Programmable gain amplifiers,
preamplifier gain, microphone bias voltages, and analog crosspoint are programmed through the serial
interface or the I2C interface. The TLV320AIC22 can be powered down, via a dedicated pin or by using software
control, to reduce power dissipation.
The TLV320AIC22 is available in a 48-pin LQFP package and is characterized for operation from –40
°C to 85°C.
ORDERING INFORMATION
PACKAGE
TA
PLASTIC QUAD FLATPACK
(PT)
–40
°C to 85°C
TLV320AIC22PT
Copyright
2002, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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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相关代理商/技术参数 |
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| TLV320AIC23 | 制造商:TI 制造商全称:Texas Instruments 功能描述:STereo Audio CODEC, 8- to 96kHz, With Integrated Headphone Amplifier |
| TLV320AIC23_06 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Stereo Audio CODEC, 8-to 96-kHz, With Integrated Headphone Amplifier |
| TLV320AIC23B | 制造商:TI 制造商全称:Texas Instruments 功能描述:Stereo Audio CODEC, 8-to 96-kHz, With Integrated Headphone Amplifier |
| TLV320AIC23B_06 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Stereo Audio CODEC, 8-to 96-kHz, With Integrated Headphone Amplifier |
| TLV320AIC23BGQE | 功能描述:接口—CODEC Lo-Pwr Highly Integrated Codec RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
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