Texas Instruments TLC320AD91CPT

Mfr. Part

TLC320AD91CPT

Manufacturer

Luminary Micro/Texas Instruments

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Detailed Description

Stereo audio codec IC for integrated circuits. 2 ADC and 2 DAC channels. 18-bit resolution. Serial audio data interface. 5 V analog and digital supplies. Surface-mount 48-LQFP (7x7 mm). Commercial operating temperature 0°C to 70°C. Typical SNR 95 dB for both ADC and DAC. RoHS non-compliant. Supplied in tube packaging. Base product family TLC320. Category: Integrated Circuits (ICs), Subclass: Interface - CODECs.

Key Features

18-bit stereo audio codec

2 ADC channels and 2 DAC channels

Serial audio data interface for easy MCU/DSP connection

Analog supply 4.5 V to 5.5 V

Digital supply 4.5 V to 5.5 V

SNR typical 95 dB ADC / 95 dB DAC

48-LQFP package, 7x7 mm body

Surface-mount, reflow compatible

Commercial temperature range 0°C to 70°C

Sigma-Delta architecture not used

Base product number TLC320

Key Advantages

Simple single 5 V design reduces power rail complexity

High SNR supports clean audio capture and playback

Compact 48-pin LQFP saves PCB space

Mature TI codec family simplifies legacy maintenance

Straightforward serial interface reduces firmware effort

Y-IC inventory and support help shorten lead time and reduce risk

Packaging

Type: Tube, anti-static protective tubes for factory handling

Package case: 48-LQFP, 7x7 mm body, gull-wing leads

Supplier device package: 48-LQFP (7x7)

Material: Molded epoxy over copper leadframe; tin-lead plated leads (RoHS non-compliant)

Pin configuration: 48 pins on four sides, typical lead pitch around 0.5 mm; see datasheet for exact pinout and numbering

Mounting: Surface-mount, compatible with standard reflow soldering

Thermal characteristics: Designed for commercial ambient 0°C to 70°C; ensure adequate copper area for heat spreading; consult datasheet for thermal resistance and derating

Electrical properties related to package: Low lead inductance suited for audio clocks and data; ESD protection per TI specifications; check datasheet for moisture sensitivity level; store in dry pack and follow J-STD-020 reflow profile

Lifecycle

Status: Legacy TI codec. RoHS non-compliant variant suggests mature or end-of-life status for many programs

Action: Verify current lifecycle and availability on our website or with Y-IC sales

Alternative and equivalent models to consider

- Texas Instruments TLV320AIC23B Stereo Codec, 16–24-bit, I2S/PCM, 3.3 V

- Texas Instruments TLV320AIC24, TLV320AIC26 Low-power stereo codecs for portable designs

- Texas Instruments TLV320AIC33, AIC3101, AIC3104 Enhanced codecs with integrated audio features

- Texas Instruments TLV320AIC3204, AIC3254 Programmable miniDSP codecs

- Texas Instruments PCM1802/PCM1804 (ADC only) and PCM1793/PCM1773 (DAC only) if separate ADC/DAC is acceptable

- Cirrus Logic CS4270, CS4272 Stereo audio codecs

- Analog Devices ADAU1761, ADAU1361 SigmaDSP-based codecs

- Wolfson/Cirrus WM8731, WM8721 classic stereo audio codecs

Note: Pinouts, voltage rails, control interfaces, audio formats, and performance can differ. Review datasheets carefully. For closest matches or drop-in guidance, contact Y-IC sales via our website

Key Application Areas

Stereo audio capture and playback in embedded systems

Industrial HMI and control panels with audio prompts

Telephony and VoIP equipment using 5 V domains

MCU/DSP-based systems requiring analog audio I/O

Legacy equipment maintenance and spare parts replacement

Audio test fixtures and instrumentation

Datasheet

Our website hosts the most authoritative datasheet for TLC320AD91CPT. Download it on this page to get full specifications, pin maps, timing, layout, and design guidelines.

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