Product Summary

The TLV320AIC23BPWR is an Integrated Headphone Amplifier. The TLV320AIC23BPWR is a high-performance stereo audio codec with highly integrated analog functionality. The analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) within the TLV320AIC23BPWR use multibit sigma-delta technology with integrated oversampling digital interpolation filters. Data-transfer word lengths of 16, 20, 24, and 32 bits, with sample rates from 8 kHz to 96 kHz, are supported. The ADC sigma-delta modulator features third-order multibit architecture with up to 90-dBA signal-to-noise ratio (SNR) at audio sampling rates up to 96 kHz, enabling high-fidelity audio recording in a compact, power-saving design. The DAC sigma-delta modulator features a second-order multibit architecture with up to 100-dBA SNR at audio sampling rates up to 96 kHz, enabling high-quality digital audio-playback capability, while consuming less than 23 mW during playback only. The TLV320AIC23BPWR is the ideal analog input/output (I/O) choice for portable digital audio-player and recorder applications, such as MP3 digital audio players. Integrated analog features consist of stereo-line inputs with an analog bypass path, a stereo headphone amplifier, with analog volume control and mute, and a complete electret-microphone-capsule biasing and buffering solution. The headphone amplifier is capable of delivering 30 mW per channel into 32 Ω. The analog bypass path allows use of the stereo-line inputs and the headphone amplifier with analog volume control, while completely bypassing the codec, thus enabling further design flexibility, such as integrated FM tuners. A microphone bias-voltage output provides a low-noise current source for electret-capsule biasing. The TLV320AIC23BPWR has an integrated adjustable microphone amplifier (gain adjustable from 1 to 5) and a programmable gain microphone amplifier (0 dB or 20 dB). The microphone signal can be mixed with the output signals if a sidetone is required.

Parametrics

TLV320AIC23BPWR absolute maximum ratings: (1)Supply voltage range, AVDD to AGND, DVDD to DGND, BVDD to DGND, HPVDD to HPGND: -0.3 V to + 3.63 V; (2)Analog supply return to digital supply return, AGND to DGND: -0.3 V to + 3 .63 V; (3)Input voltage range, all input signals: -0.3 V to DVDD + 0.3 V; (4)Case temperature for 10 seconds: 240℃; (5)Operating free-air temperature range: -10℃ to 70℃; (6)Storage temperature range: -65℃ to 150℃.

Features

TLV320AIC23BPWR features: (1)90-dB SNR Multibit Sigma-Delta ADC (A-weighted at 48 kHz); (2)100-dB SNR Multibit Sigma-Delta DAC (A-weighted at 48 kHz); (3)1.42 V – 3.6 V Core Digital Supply: Compatible With TI C54x DSP Core Voltages; (4)2.7 V – 3.6 V Buffer and Analog Supply: Compatible Both TI C54x DSP Buffer Voltages; (5)8-kHz – 96-kHz Sampling-Frequency Support; (6)2-wire-Compatible and SPI-Compatible Serial-Port Protocols; (7)Glueless Interface to TI McBSPs; (8)I2S-Compatible Interface Requiring Only One McBSP for both ADC and DAC; (9)Standard I2S, MSB, or LSB Justified-Data Transfers; (10)16/20/24/32-Bit Word Lengths; (11)Low-Noise MICBIAS pin at 3/4 AVDD for Biasing of Electret Capsules; (12)Integrated Buffer Amplifier With Tunable Fixed Gain of 1 to 5; (13)Additional Control-Register Selectable Buffer Gain of 0 dB or 20 dB; (14)Integrated Programmable Gain Amplifier; (15)Analog Bypass Path of Codec.

Diagrams

TLV320AIC23BPWR block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TLV320AIC23BPWR
TLV320AIC23BPWR

Texas Instruments

Audio CODECs Lo-Pwr Highly Integrated Codec

Data Sheet

0-1: $3.62
1-25: $3.22
25-100: $2.71
100-250: $2.61
TLV320AIC23BPWRG4
TLV320AIC23BPWRG4

Texas Instruments

Audio CODECs L-P Stereo CODEC with HP Amplifier

Data Sheet

0-1605: $2.51
1605-2000: $2.48