Overview
The TLV320AIC23IPWR is a high-performance stereo audio codec produced by Texas Instruments. It is designed with highly integrated analog functionality, making it an ideal choice for portable digital audio-player and recorder applications, such as MP3 digital audio players. The codec features multibit sigma-delta technology with integrated oversampling digital interpolation filters, supporting data-transfer word lengths of 16, 20, 24, and 32 bits, and sample rates from 8 kHz to 96 kHz.
Key Specifications
| Parameter | Description |
|---|---|
| ADC SNR | Up to 90 dB (A-weighted at 48 kHz) |
| DAC SNR | Up to 100 dB (A-weighted at 48 kHz) |
| 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 |
| Word Lengths | 16, 20, 24, 32 bits |
| Serial Port Protocols | 2-wire, SPI, TI McBSP-compatible |
| Package Type | TSSOP (28 pins) |
| Power Consumption |
Key Features
- High-performance stereo codec with multibit sigma-delta ADC and DAC.
- Integrated analog features including stereo-line inputs, analog bypass path, stereo headphone amplifier with analog volume control and mute, and complete electret-microphone-capsule biasing and buffering solution.
- Headphone amplifier capable of delivering 30 mW per channel into 32 Ω.
- Adjustable and programmable gain microphone amplifier.
- Software control via TI McBSP-compatible multiprotocol serial port.
- Support for industry-standard oversampling rates and unique oversampling rates of 250 fs and 272 fs for optimized interface with TI C54x DSPs and USB data interfaces.
- Internal oscillator with selectable clock divider for flexible clocking options.
- Low power consumption with selective shutdown of codec functions to extend battery life in portable applications.
Applications
The TLV320AIC23IPWR is ideally suited for portable digital audio-player and recorder applications, such as MP3 digital audio players, solid-state audio recorders, and other compact audio devices. Its integrated analog features and low power consumption make it a versatile choice for various portable audio solutions.
Q & A
- What is the signal-to-noise ratio (SNR) of the ADC in the TLV320AIC23IPWR?
The ADC SNR is up to 90 dB (A-weighted at 48 kHz).
- What is the signal-to-noise ratio (SNR) of the DAC in the TLV320AIC23IPWR?
The DAC SNR is up to 100 dB (A-weighted at 48 kHz).
- What are the supported sampling frequencies for the TLV320AIC23IPWR?
The supported sampling frequencies range from 8 kHz to 96 kHz.
- What are the supported word lengths for data transfer in the TLV320AIC23IPWR?
The supported word lengths are 16, 20, 24, and 32 bits.
- What serial port protocols are supported by the TLV320AIC23IPWR?
The TLV320AIC23IPWR supports 2-wire, SPI, and TI McBSP-compatible serial port protocols.
- What is the power consumption of the TLV320AIC23IPWR during playback?
The power consumption is less than 23 mW during playback only.
- What is the package type of the TLV320AIC23IPWR?
The package type is TSSOP with 28 pins.
- What are the key integrated analog features of the TLV320AIC23IPWR?
The key features include stereo-line inputs, an analog bypass path, a stereo headphone amplifier, and a complete electret-microphone-capsule biasing and buffering solution.
- How does the TLV320AIC23IPWR optimize interface considerations with TI C54x DSPs and USB data interfaces?
The TLV320AIC23IPWR supports unique oversampling rates of 250 fs and 272 fs, and a single 12-MHz crystal can supply clocking to the DSP, USB, and codec, optimizing interface considerations.
- What are the typical applications for the TLV320AIC23IPWR?
The TLV320AIC23IPWR is typically used in portable digital audio-player and recorder applications, such as MP3 digital audio players and solid-state audio recorders.
