TLV320AIC24 Datasheet PDF - TI

The TLV320AIC2x is a low-cost, low-power, highly-integrated, high-performance, dual-voice codec. It features two 16-bit analog-to-digital (A/D) channels and two 16-bit digital-to-analog (D/A) channels, which can be connected to a handset, headset, speaker, microphone, or a subscriber line via a programmable analog crosspoint.

●The TLV320AIC2x 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 TLV320AIC2x 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 DSP platforms) and microcontrollers. The SMARTDM™ supports both continuous data transfer mode and on-the-fly reconfiguration programming mode. The TLV320AIC2x can be gluelessly cascaded to any SMARTDM-based device to form a multichannel codec, and up to eight TLV320AIC2x codecs can be cascaded to a single serial port.

●The TLV320AIC2x 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 TLV320AIC2x integrates all of the critical functions needed for most voice-band applications including MIC preamplifier, handset amplifier headset amplifier, 8- speaker driver, sidetone control, antialiasing filter (AAF), input/output programmable gain amplifier (PGA), and selectable low-pass IIR/FIR filters.

●The TLV320AIC2x implements an extensive power management; including device power-down, independent software control for turning off ADC, DAC, operational-amplifiers, and IIR/FIR filter (bypassable) to maximize system power conservation. The TLV320AIC2x consumes only 14.9 mW per channel at 3 V.

●The TLV320AIC2x 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 TLV320AIC2x is characterized for commercial operation from 0°C to 70°C, and industrial operation from -40°C to 85°C. The TLV320AIC2xk is characterized for industrial operation from -40°C to 85°C.

● Stereo 16-Bit Oversampling Sigma-Delta A/D Converter

● Stereo 16-Bit Oversampling Sigma-Delta D/A Converter

● Support Maximum Master Clock of 100 MHz to Allow DSPs 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 over 13-Khz BW

● 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 Eight 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

● AIC20/21/20K Have a Built-In 8- 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

● Internal Reference Voltage (Vref)

● 2s Complement Data Format

● Test Mode Which Includes Digital Loopback and Analog Loopback

● APPLICATIONS

● Wireless Accessories

● Hands-Free Car Kits

● VOIP

● Cable Modem

● Speech Processing

●SMARTDM, TMS320, TMS320C5000, TMS320C6000 are registered trademarks of Texas Instruments.