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參數資料
| 型號： | TLV320AIC11I |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | PLASTIC, TQFP-48 |
| 文件頁數： | 53/55頁 |
| 文件大小： | 263K |
| 代理商： | TLV320AIC11I |
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1–1
1 Introduction
The TLV320AIC11 provides high resolution signal conversion from digital-to-analog (D/A) and from analog-to-digital
(A/D) using oversampling sigma-delta technology. It allows 2-to-1 MUX inputs with built-in antialiasing filter and
amplification for general-purpose applications such as telephone hybrid interface, electret microphone preamp, etc.
Both IN and AUX inputs accept normal analog signals. This device consists of a pair of 16-bit synchronous serial
conversion paths (one for each direction), and includes an interpolation filter before the DAC and a decimation filter
after the ADC. The FIR filters can be bypassed to offer flexibility and power savings. Other overhead functions
provided on-chip include timing (programmable sample rate, continuous data transfer, and FIR bypass) and control
(programmable-gain amplifier, communication protocol, etc.). The sigma-delta architecture produces high-resolution
analog-to-digital and digital-to-analog conversion at low system cost.
The TLV320AIC11 design enhances communication with the DSP. The continuous data transfer mode fully supports
TI’s DSP autobuffering (ABU) to reduce DSP interrupt service overhead. The automatic cascading detection (ACD)
makes cascade programming simple and supports a cascade operation of one master and up to seven slaves. The
direct-configuration mode for host interface uses a single-wire serial port to directly program internal registers without
interference from the data conversion serial port, or without resetting the entire device. The event monitor mode
allows the DSP to monitor external events like telephone’s ring and off-hook detection.
In the lower-power mode, the TLV320AIC11 converts data at a sampling rate of 8 KSPS consuming only 39 mW.
The programmable functions of this device are configured through a serial interface that can be gluelessly interfaced
to any DSP that accepts 4-wire serial communications, such as the TMS320UC54x. The options include software
reset, device power-down, separate control for ADC and DAC turnoff, communications protocol, signal-sampling
rate, gain control, and system-test modes. See Appendix A for further details.
The TLV320AIC11 is particularly suitable for a variety of applications in hands-free car kits, VOIP, cable modem,
speech, and telephony area including low-bit rate, high-quality compression, speech enhancement, recognition, and
synthesis. Its low-group delay characteristic makes it suitable for single or multichannel active-control applications.
The wide range of low-voltage I/O (1.1 V–3.6 V) enables the AIC11 to interface with a single power supply, or with
dual power supplies for mixed low-voltage DSP systems such as the TMS320UC54x. This feature eliminates the
need for external level-shifting and reduces power consumption.
The TLV320AIC11 is characterized for commercial operation from 0
°C to 70°C, and industrial operation from –40°C
to 85
°C.
1.1
Features
16-bit oversampling sigma-delta A/D converter
16-bit oversampling sigma-delta D/A converter
Maximum output conversion rate:
–
22 ksps with on-chip FIR filter
–
88 ksps with FIR bypassed
Voiceband bandwidth in FIR-bypassed mode and final sampling rate at 8 ksps
–
90-dB SNR/ADC and 87-dB SNR/DAC with DSP’s FIR (FIR bypassed @ 88 ksps/5 V)
–
87-dB SNR/ADC and 85-dB SNR/DAC with DSP’s FIR (FIR bypassed @88 ksps/3.3 V)
On-chip FIR produced 84-dB SNR for ADC and 85-dB SNR for DAC over 11-kHz BW
Built-in functions including PGA, antialiasing analog filter, and operational amplifiers for general-purpose
interface (such as MIC interface and hybrid interface)
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| TLV320AIC11CPFB | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| TLV320AIC11IPFB | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| TLV320AIC11CPFBG4 | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| TLV320A11IPFBG4 | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| TLV320AIC11IPFBG4 | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TLV320AIC11IPFB | 功能描述:接口—CODEC Gen Purp Lo-I/O Vltg 16-Bit 22-KSPS DSP RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量: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 |
| TLV320AIC11IPFBG4 | 功能描述:接口—CODEC 12-Bit To 24-Bit Reg Bus Exchg W/3-St Otp RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量: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 |
| TLV320AIC11PFB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:General-Purpose Low-Voltage 1.1V to 3.6V/0 16-bit 22-KSPS DSP CODEC |
| TLV320AIC12 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:PRODUCT NOTIFICATION |
| TLV320AIC12_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-POWER, HIGHLY-INTEGRATED, PROGRAMMABLE 16-Bit, 26-KSPS MONO CODEC |
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