Features: • Stereo Audio DAC
100 dB A Signal-to-Noise Ratio
16/20/24/32-Bit Data
Supports Rates From 8 kHz to 96 kHz
3D/Bass/Treble/EQ/De-Emphasis Effects
• Stereo Audio ADC
92 dB A Signal-to-Noise Ratio
Supports Rates From 8 kHz to 96 kHz
• Six Audio Input Pins
Two Stereo Differential/Single-Ended
• Six Audio Output Drivers
Stereo 8-Ω,500 mw/Channel Speaker Drive
Capability
Stereo Fully-Differential or Single-Ended
Headphone Drivers
Fully Differential Stereo Line Outputs
• Low Power:14-mW Stereo, 48-kHz Playback
With 3.3-V Analog Supply
• Programmable Input/Output Analog Gains
• Automatic Gain Control (AGC) for Record
• Programmable Microphone Bias Level
• Programmable PLL for Flexible Clock Generation
• I2C Control Bus
• Audio Serial Data Bus Supports I2S,
Left/Right-Justified,DSP,andTDM Modes
• Extensive Modular Power Control
• Power Supplies:
Analog: 2.7V
3.6V
Digital Core:1.525V
1.95V
Digital I/O:1.1V
3.6V
• Available Packages:5*5mm,32-Pin QFNSpecifications
| |
VALUE |
UNIT |
| AVDD to DRVDD1/2 to DRVSS |
0.3 to 3.9 |
V |
| AVDDA1 to DRVSS |
0.3 to 3.9 |
V |
| IOVDD to DVSS |
0.3 to 3.9 |
V |
| DVDD to DVSS |
0.3 to 3.5 |
V |
| AVDD to DRVDD1/2 |
0.1 to 0.1 |
V |
| Digital input voltage to DVSS |
0.3V to IOVDD+0.3 |
V |
| Analog input voltage to AVSS |
0.3V to AVDD+0.3 |
V |
| Operating temperature range |
-40 to +85 |
°C |
| Storage temperature range |
-65 to +105 |
°C |
TJ Junction temperature
Max |
105 |
|
| QFN package |
|
(TJ MaxTA)/JA |
|
| |
TBD |
|
| Lead temperature |
|
TBD |
|
| |
TBD |
|
DescriptionThe TLV320AIC31 is a low-power stereo-audio codec with a stereo headphone amplifier, as well as multiple inputs and outputs,programmable in single-ended or fully-differential configurations. Extensive register-based power control is included, enabling stereo 48-kHz DAC playback as low as 14 mW from a 3.3-V analog supply, making TLV320AIC31 ideal for portable, battery-powered audio and telephony applications.
The record path of the TLV320AIC31 contains integrated microphone bias, digitally-controlled stereo-microphone pre-amp, and automatic gain control (AGC), with mix/mux capability among the multiple analog inputs. The playback path of TLV320AIC31 includes mix/mux capability from the stereo DAC and selected inputs, through programmable volume controls, to the various outputs.
The TLV320AIC31 contains four high-power output drivers as well as two fully differential output drivers. The high-power output drivers are capable of driving a variety of load configurations, including up to four channels of single-ended 16-Ω headphones using ac-coupling capacitors, or stereo 16-Ω headphones in a cap-less output configuration.
In addition,pairs of drivers TLV320AIC31 can be used to drive 8-Ω speakers in a BTL configuration at 500 mW per channel.
The stereo audio DAC TLV320AIC31 supports sampling rates from 8 kHz to 96 kHz and includes programmable digital filtering in the DAC path for 3D,bass,treble, midrange effects, speaker equalization, and de-emphasis for 32 kHz, 44.1 kHz, and 48 kHz rates. The stereo-audio ADC TLV320AIC31 supports sampling rates from 8 kHz to 96 kHz and is preceded by programmable gain amplifiers providing up to +59.5 dB analog gain for low-level microphone inputs.
The serial control bus of TLV320AIC31 supports the I2C protocol, while the serial-audio data bus is programmable for I2S, left/right justified, DSP, or TDM modes. A highly programmable PLL is included for flexible clock generation and support for all standard audio rates from a wide range of available MCLKs, varying from 512 kHz to 50 MHz, with special attention paid to the most popular cases of 12 MHz, 13 MHz, 16 MHz, 19.2 MHz, and 19.68 MHz system clocks.
TLV320AIC31 Data Sheet
