TLV320AIC1XCDBT中文资料德州仪器数据手册PDF规格书

FEATURES

· Mono 16-Bit Oversampling Sigma-Delta A/D

Converter

· Mono 16-Bit Oversampling Sigma-Delta D/A

Converter

· Support Maximum Master Clock of 100 MHz to

Allow the DSP Output Clock to be Used as a

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 92-dB SNR for DAC

· Smart Time Division Multiplexed

(SMARTDM™) Serial Port

– Glueless 4-Wire Interface to DSP

– Automatic Cascade Detection (ACD)

Self-Generates Master/Slave Device

Addresses

– Programming Mode to Allow On-the-Fly

Reconfiguration

– Continuous Data Transfer Mode to

Minimize Bit Clock Speed

– Support Different Sampling Rate for Each

Device

– Turbo Mode to Maximize Bit Clock for

Faster Data Transfer and Allow Multiple

Serial Devices to Share the Same Bus

– Allows up to 16 Devices to be Connected

to a Single Serial Port

· Host Port

– 2-Wire Interface

– Selectable I2C or S2C

· Differential and Single-Ended Analog

Input/Output

· Built-In Analog Functions:

– Analog and Digital Sidetone

– Antialiasing Filter (AAF)

– Programmable Input and Output Gain

Control (PGA)

– Microphone/Handset/Headset Amplifiers

– AIC12K has an 8-W Speaker Driver

– Power Management With

Hardware/Software Power-Down Modes

30 μW

· Separate Software Control for ADC and DAC

Power Down

· Fully Compatible With Common TMS320™

DSP Family and Microcontroller Power

Supplies

– 1.65 V - 1.95 V Digital Core Power

– 1.1 V - 3.6 V Digital I/O

– 2.7 V - 3.6 V Analog

· Power Dissipation (PD)

– 11.2 mW at 3.3 V in Standard Operation

– 17.8 mW at 3.3 V With Headphone Drivers

· Internal Reference Voltage (Vref)

· 2s Complement Data Format

· Test Modes Which Include Digital Loopback

and Analog Loopback

APPLICATIONS

· Digital Still Cameras

· Wireless Accessories

· Hands-Free Car Kits

· VOIP

· Cable Modem

DESCRIPTION

The TLV320AIC1x is a true low-cost, low-power, high-integrated, high-performance, mono voice codec. It

features one 16-bit analog-to-digital (A/D) channel and one 16-bit digital-to-analog (D/A) channel.

The TLV320AIC1x 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.

The TLV320AIC1x implements the smart time division multiplexed serial port (SMARTDM™). The SMARTDM

port is a synchronous 4-wire serial port in TDM format for glue-free interface to TI DSPs (i.e. TMS320C5000™,

TMS320C6000™) and microcontrollers. The SMARTDM supports both continuous data transfer mode and

on-the-fly reconfiguration programming mode. The TLV320AIC1x can be gluelessly cascaded to any

SMARTDM-based device to form multichannel codec and up to 16 TLV320AIC1x codecs can be cascaded to a

single serial port.

The TLV320AIC1x 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 TLV320AIC1x also integrates all of the critical functions needed for most voice-band applications including

MIC preamplifier, handset amplifier, headset amplifier, antialiasing filter (AAF), input/output programmable gain

amplifier (PGA), and selectable low-pass IIR/FIR filters. The AIC12K also includes an 8-W speaker driver.

The TLV320AIC1x implements an extensive power management; including device power-down, independent

software control for turning off ADC, DAC, operational-amplifiers, and IIR/FIR filter (bypass) to maximize system

power conservation. The TLV320AIC1x consumes only 11.2 mW at 3.3 V.

The TLV320AIC1x low power operation from 2.7 V to 3.6 V 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 TLV320AIC1x is characterized for commercial operation from 0°C to 70°C and industrial operation from

-40°C to 85°C. The TLV320AIC1xk is characterized for industrial operation from -40°C to 85°C.