Overview
The TLV320AIC34 is a low-power, four-channel audio codec designed by Texas Instruments for use in portable audio and telephony applications. This device features a four-channel audio DAC and ADC, along with multiple programmable inputs and outputs. It is optimized for low power consumption, making it ideal for battery-powered devices. The TLV320AIC34 supports a wide range of sampling rates from 8 kHz to 96 kHz and includes advanced audio processing capabilities such as 3D, bass, treble, EQ, and de-emphasis effects.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Signal-to-Noise Ratio (DAC) | 102 dB | A-weighted |
| Signal-to-Noise Ratio (ADC) | 92 dB | A-weighted |
| Data Resolution | 16, 20, 24, 32 bits | |
| Sampling Rates | 8 kHz to 96 kHz | |
| Analog Supply Voltage | 2.7 V to 3.6 V | V |
| Digital Core Supply Voltage | 1.65 V to 1.95 V | V |
| Digital I/O Supply Voltage | 1.1 V to 3.6 V | V |
| Package | 6-mm × 6-mm, 87-pin NFBGA | |
| Operating Temperature | –40°C to 85°C | °C |
Key Features
- Four-channel audio DAC and ADC with programmable gain amplifiers.
- Supports sampling rates from 8 kHz to 96 kHz.
- Advanced audio processing: 3D, bass, treble, EQ, and de-emphasis effects.
- Twelve programmable audio inputs and fourteen audio output drivers.
- Low power consumption: 15 mW for stereo 48-kHz playback at 3.3 V analog supply.
- Ultra-low-power mode with passive analog bypass.
- Automatic Gain Control (AGC) for record path.
- Dual programmable PLLs for flexible clock generation.
- I2C control bus and dual audio serial data buses supporting I2S, left- or right-justified, DSP, PCM, and TDM modes.
- Digital microphone input support and concurrent digital and analog microphone support.
Applications
- Digital cameras.
- Smart cellular phones.
- Portable audio devices.
- Telephony applications.
Q & A
- What is the signal-to-noise ratio of the TLV320AIC34 DAC?
The signal-to-noise ratio of the TLV320AIC34 DAC is 102 dB A-weighted. - What are the supported sampling rates for the TLV320AIC34?
The TLV320AIC34 supports sampling rates from 8 kHz to 96 kHz. - What is the power consumption for stereo 48-kHz playback?
The power consumption for stereo 48-kHz playback is as low as 15 mW from a 3.3-V analog supply. - What types of audio processing effects are supported by the TLV320AIC34?
The TLV320AIC34 supports 3D, bass, treble, EQ, and de-emphasis effects. - How many audio inputs and outputs does the TLV320AIC34 have?
The TLV320AIC34 has twelve programmable audio inputs and fourteen audio output drivers. - What is the operating temperature range of the TLV320AIC34?
The operating temperature range is –40°C to 85°C. - What is the package type of the TLV320AIC34?
The TLV320AIC34 is available in a 6-mm × 6-mm, 87-pin NFBGA package. - Does the TLV320AIC34 support digital microphone inputs?
Yes, the TLV320AIC34 supports digital microphone inputs and concurrent digital and analog microphone support. - What control bus does the TLV320AIC34 use?
The TLV320AIC34 uses an I2C control bus. - What are the typical applications of the TLV320AIC34?
The typical applications include digital cameras, smart cellular phones, portable audio devices, and telephony applications.
