Low-Power Stereo DAC with 4 Outputs, HP/Speaker Amplifier and 3D Effects - TLV320DAC32

TLV320DAC32 (ACTIVE)

Low-Power Stereo DAC with 4 Outputs, HP/Speaker Amplifier and 3D Effects

 

Recommended alternative parts

  • TLV320DAC3100  -  Stereo DAC, 95dB SNR supports up to 192kHZ Sample Rates, and has a Mono Class-D Amplifier
  • TLV320DAC3101  -  Stereo DAC, 95dB SNR supports up to 192kHZ Sample Rates, and has a Stereo Class-D Amplifier

Description

The TLV320DAC32 is a low power stereo audio DAC with and integrated power amplifier designed to drive stereo headphones or speakers. This device also has a pair of analog inputs which allow routing of external signals to the output amplifiers. The playback path includes a mix/mux capability from the stereo DAC and analog inputs, through programmable volume controls, to the headphone outputs. Extensive register-based power control is included, enabling stereo 96-kHz playback as low as 20mW from a 3.3-V analog supply, making it ideal for portable battery-powered audio and telephony applications.

The TLV320DAC32 contains four high-power output drivers. These 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 configuraton. In addition, pairs of drivers can be used to drive 8-Ω speakers in a BTL configuration at 500 mW per channel.

The stereo audio DAC 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 serial control bus uses 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.

The TLV320DAC32 operates from analog supplies of 2.7 V - 3.6 V, a digital core supply of 1.525 V - 1.95 V, and a digital I/O supply of 1.1 V - 3.6 V. An internal LDO regulator allows the device to internally generate the lower voltage power supply needed for digital core logic, thereby allowing full operation from a single 3.3-V supply voltage.

The TLV320DAC32 is a software-compatible subset of the existing TLV320AIC32 and TLV320AIC33 audio codecs, allowing simple transition from a system with record and playback to a system with playback only.

The device is available in a 5 x 5mm 32-lead QFN package.

Features

  • Stereo Audio DAC
    • 95-dBA 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
  • Two Audio Input Pins
    • Allows Analog Bypass Path
  • Four Audio Output Drivers
    • Stereo 8-, 500-mW/Channel SpeakerDrive Capability
    • Stereo Fully Differential or Single-Ended Headphone Drivers
  • Low Power: 18-mW Stereo 48-kHz Playback With 3.3-V Analog Supply
  • Programmable Input/Output Analog Gains
  • Programmable Microphone Bias Level
  • Headphone Jack Detection
  • Programmable PLL for Flexible Clock Generation
  • I2C Control Bus
  • Audio Serial Data Bus Supports I2S, Left/Right-Justified, DSP, and TDM Modes
  • Extensive Modular Power Control
  • Internal Selectable LDO Allows Operation From Single 3.3-V Supply
  • Power Supplies:
    • Analog: 2.7 V-3.6 V.
    • Digital Core: 1.525 V-1.95 V
    • Digital I/O: 1.1 V-3.6 V
  • Package: 5 × 5 mm 32-QFN

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Parametrics Compare all products in Audio DAC

 
DAC Channels
Analog Inputs
Analog Outputs
DAC SNR (Typ) (dB)
Sampling Rate (Max) (kHz)
Control Interface
Resolution (Bits)
Architecture
Package Size: mm2:W x L (PKG)
Approx. Price (US$)
TLV320DAC32 TLV320DAC23 TLV320DAC26 TLV320DAC3100 TLV320DAC3101 TLV320DAC3120 TLV320DAC3203
2    2    2    2    2    1    2   
2    0    0    2    2    2    2   
4    4    2    4    4    2    2   
95    100    97    95    95    95    100   
96    96    53    192    192    192    192   
I2C    I2C
SPI   
SPI    I2C    I2C    I2C    I2C
SPI   
24    24    24    32    32    32    32   
Class AB    Delta-Sigma    Delta-Sigma    Class D    Class D    Class D    Class AB   
32VQFN: 25 mm2: 5 x 5(VQFN)    80BGA MICROSTAR JUNIOR: 25 mm2: 5 x 5(BGA MICROSTAR JUNIOR)
28TSSOP: 62 mm2: 6.4 x 9.7(TSSOP)
28VQFN: 25 mm2: 5 x 5(VQFN)   
32VQFN: 25 mm2: 5 x 5(VQFN)    32VQFN: 25 mm2: 5 x 5(VQFN)    32VQFN: 25 mm2: 5 x 5(VQFN)    32VQFN: 25 mm2: 5 x 5(VQFN)    See datasheet (DSBGA)
24VQFN: 16 mm2: 4 x 4(VQFN)   
1.84 | 1ku    2.16 | 1ku    2.65 | 1ku    1.45 | 1ku    1.75 | 1ku    1.75 | 1ku    1.40 | 1ku   

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