Overview
The TLV320AIC23BPWRG4, produced by Texas Instruments, is a high-performance stereo audio codec that integrates advanced analog functionality. This component is designed for portable digital audio-player and recorder applications, such as MP3 players, offering high-fidelity audio recording and playback capabilities. It features low power consumption and a compact design, making it ideal for space-saving and cost-effective audio solutions.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 28-Pin TSSOP |
| Core Digital Supply | 1.42 V to 3.6 V |
| Buffer and Analog Supply | 2.7 V to 3.6 V |
| Sampling Frequency | 8 kHz to 96 kHz |
| ADC SNR | Up to 90 dB (A-weighted at 48 kHz) |
| DAC SNR | Up to 100 dB (A-weighted at 48 kHz) |
| Data Transfer Word Lengths | 16, 20, 24, and 32 bits |
| Serial Port Protocols | 2-wire and SPI compatible |
| Audio Interface | I2S compatible, requiring only one McBSP for both ADC and DAC |
| Power Consumption | Less than 23 mW during playback only |
Key Features
- High-performance stereo codec with multibit sigma-delta technology and integrated oversampling digital interpolation filters.
- Integrated analog features include stereo-line inputs, a stereo headphone amplifier with analog volume control and mute, and a complete electret-microphone-capsule biasing and buffering solution.
- Programmable gain microphone amplifier (gain adjustable from 1 to 5 or 0 dB/20 dB).
- Support for audio sample rates of 48 kHz and CD standard 44.1 kHz directly from a 12-MHz master clock.
- Internal oscillator providing system clock to DSP and other peripherals at 12 MHz or 6 MHz.
- Low power consumption with flexible power management for selective shutdown of codec functions.
- Compact design using TI’s MicroStar Junior package, occupying only 25 mm² of board area.
Applications
The TLV320AIC23BPWRG4 is ideally suited for portable solid-state audio players and recorders, such as MP3 digital audio players. It is also applicable in various consumer electronics, professional audio equipment, and telecommunications products where high-quality audio processing and low power consumption are critical.
Q & A
- What is the primary function of the TLV320AIC23BPWRG4?
The TLV320AIC23BPWRG4 is a high-performance stereo audio codec designed for audio input/output (I/O) in portable digital audio-player and recorder applications. - What are the supported sampling frequencies?
The TLV320AIC23BPWRG4 supports sampling frequencies from 8 kHz to 96 kHz. - What is the signal-to-noise ratio (SNR) of the ADC and DAC?
The ADC has an SNR of up to 90 dB (A-weighted at 48 kHz), and the DAC has an SNR of up to 100 dB (A-weighted at 48 kHz). - What are the supported data transfer word lengths?
The supported data transfer word lengths are 16, 20, 24, and 32 bits. - What serial port protocols does the TLV320AIC23BPWRG4 support?
The TLV320AIC23BPWRG4 supports 2-wire and SPI-compatible serial port protocols. - How does the internal oscillator function?
The internal oscillator provides a system clock to the DSP and other peripherals at either 12 MHz or 6 MHz when connected to a 12-MHz external crystal. - What is the power consumption during playback?
The power consumption during playback only is less than 23 mW. - What is the package type and size of the TLV320AIC23BPWRG4?
The TLV320AIC23BPWRG4 comes in a 28-Pin TSSOP package, occupying only 25 mm² of board area. - What are some of the integrated analog features?
The integrated analog features include stereo-line inputs, a stereo headphone amplifier, and a complete electret-microphone-capsule biasing and buffering solution. - Is the TLV320AIC23BPWRG4 suitable for battery-powered devices?
Yes, it is suitable due to its low power consumption and flexible power management capabilities.
