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參數(shù)資料
| 型號： | TLV320AIC14I |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO30 |
| 封裝： | PLASTIC, TSSOP-30 |
| 文件頁數(shù)： | 53/54頁 |
| 文件大小： | 450K |
| 代理商： | TLV320AIC14I |
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1–1
1 Introduction
The TLV320AIC14 is a true low-cost, low-power, high-performance, highly-integrated voiceband codec designed with
new technological advances. The TLV320AIC14 provides high resolution signal conversion from digital-to-analog
(D/A) and from analog-to-digital (A/D) using oversampling sigma-delta technology with programmable sampling rate.
1.1
Description
The TLV320AIC14 implements the smart time division multiplexed serial port (SMARTDM
). This is TI’s design
innovation to optimize DSP performance with its most advanced synchronous serial port in TDM format for glue-free
interface to popular DSPs (i.e., C5x, C6x) and microcontrollers. The SMARTDM supports both continuous data
transfer mode and on-the-fly reconfiguration programming mode. SMARTDM maximizes the bandwidth of data
transfer between the TLV320AIC14 DSP codec and the DSP. In normal operation, it automatically detects the number
of codecs in the serial interface and adjusts the number of time slots to match the number of codecs so that no time
slot in the TDM frame is wasted. In the turbo mode, it maintains the same number of time slots but maximizes the
bit transferred rate to 25 MHz to give the DSP more bandwidth to process other tasks in the same sampling period.
The SMARTDM technology allows up to 16 codecs to share a single 4-wire serial bus.
The TLV320AIC14 also provides a flexible host port. The host port interface is a two-wire serial interface that can be
programmed to be either an industrial standard I2C or a simple S2C (start-stop communication protocol).
The TLV320AIC14 also integrates all of the critical functions needed for most voice-band applications including MIC
preamp, handset/headset preamps, antialiasing filter (AAF), input/output programmable gain amplifier (PGA), and
selectable low-pass IIR/FIR filters.
The TLV320AIC14 implements an extensive power management; including device power-down, independent
software control for turning off ADC, DAC, op-amps, and IIR/FIR filter (bypassable) to maximize system power
conservation. The TLV320AIC14 consumes only 10 mW at 3 V.
The TLV320AIC14’s low power operation from 2.7 V to 3.6 V for analog and I/O and 1.65 V to 1.95 V for digital core
power supplies, along with extensive power management, make it ideal for portable applications including wireless
accessories, hands free car kits, VOIP, cable modem, and speech processing. Its low group delay characteristic
makes it suitable for single or multichannel active control applications.
The TLV320AIC14 is characterized for commercial operation from 0
°C to 70°C and industrial operation from –40°C
to 85
°C.
1.2
Features
C54x Software Driver Available
16-Bit Oversampling Sigma-Delta A/D Converter
16-Bit Oversampling Sigma-Delta D/A Converter
Support Maximum Master Clock of 100 MHz to Allow DSPs Output Clock to Be Used as Master Clock
Selectable FIR/IIR Filter With Bypassing Option
Programmable Sampling Rate up to:
–
Max 26 KSPS With On-Chip IIR/FIR Filter
–
Max 104 KSPS With IIR/FIR Bypassed
On-Chip FIR Produced 84-dB SNR for ADC and 91-dB SNR for DAC Over 13-kHz BW
External DSPs IIR/FIR for a Final Sampling Rate of 8 Ksps (IIR/FIR Bypassed) Produced 87-dB SNR for
ADC and 92-dB SNR for DAC.
SMARTDM is a trademark of Texas Instruments.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TLV320AIC14IDBT | 功能描述:接口—CODEC Lo-Pwr Mono Voice Band CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| TLV320AIC14IDBT-1 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| TLV320AIC14IDBTG4 | 功能描述:接口—CODEC Lo-Pwr Mono Voice Band CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| TLV320AIC14IDBTR | 功能描述:接口—CODEC Lo-Pwr Mono Voice Band CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| TLV320AIC14IDBTRG4 | 功能描述:接口—CODEC Lo-Pwr Mono Voice Band CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
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