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TLV320AIC28IRGZR Datasheet(PDF) 1 Page - Texas Instruments |
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TLV320AIC28IRGZR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 85 page TLV320AIC28 SLAS418B − FEBRUARY 2004 − REVISED MAY 2005 STEREO AUDIO CODEC WITH INTEGRATED HEADPHONE AND SPEAKER AMPLIFIERS FEATURES D Stereo Audio DAC and Mono Audio ADC Support Rates Up to 48 ksps D High Quality 95-dB Stereo Audio Playback Performance D MIC Preamp and Hardware Automatic Gain Control With Up to 59.5-dB Gain D Stereo 16-W Headphone Amplifier With Capless Output Option D 400-mW 8-W Audio Power Amp With Direct Battery Supply Connection D 32-W Differential Earpiece Driver D Integrated PLL For Flexible Audio Clock Generation D Low Power 19-mW Stereo Audio Playback at 48 ksps and 3.3-V Analog Supply level D Programmable Digital Audio Bass/Treble/ EQ/De-Emphasis D Auto-Detection of Jack Insertion, Headset Type, and Button Press D Direct Battery Measurement Accepts Up to 6-V Input D On-Chip Temperature and Auxiliary Input Measurement D Programmable Measurement Converter Resolution, Speed, Averaging, and Timing D SPI and I2S Serial Interfaces D Full Power-Down Control D 48-Pin QFN Package APPLICATIONS D Personal Digital Assistants D Cellular Smartphones D Digital Still Cameras D Digital Camcorders D MP3 Players DESCRIPTION The TLV320AIC28 is a low-power, high-performance audio codec with 16/20/24/32-bit 95-dB stereo playback, mono record functionality at up to 48 ksps. Two microphone inputs include independent programmable bias voltages, built-in pre-amps, and hardware automatic gain control, with single-ended or fully-differential signal input capabilities. The stereo 16- Ω headphone drivers on the AIC28 support capless as well as ac-coupled output configurations. An 8- Ω BTL differential speaker driver provides up to 400 mW of power and 98-dB SNR, while a differential driver is also available for driving a 32- Ω speaker or telephone earpiece. A programmable digital audio effects processor enables bass, treble, midrange, or equalization playback processing. The digital audio data format is programmable to work with popular audio standard protocols (I2S, DSP, left/right justified) in master or slave mode, and also includes an on-chip programmable PLL for flexible clock generation capability. Highly configurable software power control is provided, enabling 48 ksps stereo audio playback to 16- Ω headphones at 19 mW with a 3.3-V analog supply level. The AIC28 offers a 12-bit measurement ADC and internal reference voltage. It includes an on-chip temperature sensor capable of reading 0.3 °C resolution, as well as a battery measurement input capable of reading battery voltages up to 6 V, while operating at an analog supply as low as 3 V. The AIC28 is available in a 48-lead 7 x 7 mm QFN package. US Patent No. 624639 SPI is a trademark of Motorola, Inc. I2S is a trademark of Philips Corporation. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. www.ti.com Copyright 2004 − 2005, Texas Instruments Incorporated |
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