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  • TAD5142 Hardware-control stereo audio DAC with 110dB dynamic range, and headphone/line driver

    • SLASF32A December   2023  – October 2024 TAD5142

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  • TAD5142 Hardware-control stereo audio DAC with 110dB dynamic range, and headphone/line driver
  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Timing Requirements: TDM, I2S or LJ Interface
    7. 5.7 Switching Characteristics: TDM, I2S or LJ Interface
    8. 5.8 Timing Diagrams
    9. 5.9 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Hardware Control
      2. 6.3.2 Audio Serial Interfaces
        1. 6.3.2.1 Time Division Multiplexed Audio (TDM) Interface
        2. 6.3.2.2 Inter IC Sound (I2S) Interface
        3. 6.3.2.3 Left-Justified (LJ) Interface
      3. 6.3.3 Phase-Locked Loop (PLL) and Clock Generation
      4. 6.3.4 Analog Output Configurations
      5. 6.3.5 Reference Voltage
      6. 6.3.6 DAC Signal-Chain
        1. 6.3.6.1 Digital Interpolation Filters
          1. 6.3.6.1.1 Linear-phase filters
            1. 6.3.6.1.1.1 Sampling Rate: 8kHz or 7.35kHz
            2. 6.3.6.1.1.2 Sampling Rate: 16kHz or 14.7kHz
            3. 6.3.6.1.1.3 Sampling Rate: 24kHz or 22.05kHz
            4. 6.3.6.1.1.4 Sampling Rate: 32kHz or 29.4kHz
            5. 6.3.6.1.1.5 Sampling Rate: 48kHz or 44.1kHz
            6. 6.3.6.1.1.6 Sampling Rate: 96kHz or 88.2kHz
            7. 6.3.6.1.1.7 Sampling Rate: 192kHz or 176.4kHz
          2. 6.3.6.1.2 Low-latency Filters
            1. 6.3.6.1.2.1 Sampling Rate: 24kHz or 22.05kHz
            2. 6.3.6.1.2.2 Sampling Rate: 32kHz or 29.4kHz
            3. 6.3.6.1.2.3 Sampling Rate: 48kHz or 44.1kHz
            4. 6.3.6.1.2.4 Sampling Rate: 96kHz or 88.2kHz
            5. 6.3.6.1.2.5 Sampling Rate: 192kHz or 176.4kHz
    4. 6.4 Device Functional Modes
      1. 6.4.1 Active Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Application
      2. 7.2.2 Design Requirements
      3. 7.2.3 Detailed Design Procedure
      4. 7.2.4 Application Performance Plots
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
  12. IMPORTANT NOTICE

Package Options

Mechanical Data (Package|Pins)
  • RGE|24
    • MPQF124G
Thermal pad, mechanical data (Package|Pins)
  • RGE|24
    • QFND808
Orderable Information
  • slasf32a_oa
  • slasf32a_pm
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Data Sheet

TAD5142 Hardware-control stereo audio DAC with 110dB dynamic range, and headphone/line driver

1 Features

    • Stereo audio DAC performance:
      • DAC to differential line-out dynamic range: 110dB
      • DAC to pseudo-differential headphone-out dynamic range: 107dB
      • DAC to differential line-out THD+N: –100 dB
      • Output voltage:
        • Differential Line-out/Receiver, 2VRMS full-scale
        • Pseudo-differential Headphone, 1VRMS full-scale
        • Single-ended Line-out, 1VRMS full-scale
      • DAC sample rates (fs) = 8kHz to 192kHz
    • Key Features
      • Pin or Hardware Control
      • Audio Serial Interface
        • Format: TDM, LJ or I2S
        • Bus Controller and Target Modes
        • Daisy chain in TDM Mode
        • Word Length: Selectable 24 or 32 Bits
      • Pin-selectable digital interpolation filter options:
        • Linear-phase
        • Low-latency
      • Auto clock detection
      • Interrupt output on clock error
      • Single supply operation AVDD: 1.8V or 3.3V
      • I/O Supply Operation: 1.8V or 3.3V
      • Temperature grade 1: –40°C ≤ TA ≤ +125°C

2 Applications

  • AV Receiver
  • IP Network Camera
  • Soundbar
  • Video Conference System

3 Description

The TAD5142 is a 2VRMS 110dB stereo audio DAC that can be configured for either line output or headphone load and supports both single-ended and differential output options. The device integrates a phase-locked loop (PLL) and supports sample rates up to 192kHz. TAD5142 can drive upto 62.5 mW into a 16Ω headphone load. The TAD5142 supports time-division multiplexing (TDM), left-justified (LJ), or I2S audio formats in controller and target modes, and is pin or hardware controlled. These integrated high-performance features, pin control along with a single supply operation, make TAD5142 an excellent choice for space-constrained audio applications.

Device Information
PART NUMBER PACKAGE(1) PACKAGE SIZE (NOM)(2)
TAD5142 VQFN (24) 4mm x 4mm with 0.5mm pitch
(1) For all available packages, see the orderable addendum at the end of the data sheet.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
TAD5142 Simplified Block Diagram Simplified Block Diagram

4 Pin Configuration and Functions

Figure 4-1 24-Pin QFN Package with Exposed Thermal Pad and Corner Pins, Top View
Table 4-1 Pin Functions
PIN TYPE DESCRIPTION
NAME NO.
VSS A1 Ground Ground pin. Short directly to board ground plane.
DREG 1 Digital Supply Digital on-chip regulator output voltage for digital supply (1.55V, nominal)
BCLK 2 Digital I/O Audio serial data interface bus bit clock
FSYNC 3 Digital I/O Audio serial data interface bus frame synchronization signal
MD6 4 Digital I/O TDM mode: Daisy chain output
I2S/LJ mode: Mono/Stereo DAC Channels selection
DIN 5 Digital Input Audio serial data interface bus input
IOVDD 6 Digital Supply Digital I/O power supply (1.8V or 3.3V, nominal)
VSS A2 Ground Ground pin. Short directly to board ground plane.
MD1 7 Digital Input Controller mode: Frame rate and BCLK frequency selection
Target mode: AVDD supply, word length, and interpolation filter type selection
MD2 8 Digital Input Controller mode: Frame rate and BCLK frequency selection
Target mode: AVDD supply, word length, and interpolation filter type selection
MD3 9 Digital Input Controller mode: Controller clock input
Target mode: Short directly to board ground plane.
MD4 10 Digital Input DAC output configuration selection
GPO 11 Digital Output Interrupt output (latched)
MD5 12 Digital Input DAC output configuration selection
VSS A3 Ground Ground pin. Short directly to board ground plane.
MD0 13 Analog Input Multi-level analog input for controller/target mode and I2S/TDM/LJ mode selection
VSSA 14 Ground Short directly to board ground plane
VSSA 15 Ground Short directly to board ground plane
VSSA 16 Ground Short directly to board ground plane
VSSA 17 Ground Short directly to board ground plane
VSSA 18 Ground Short directly to board ground plane
VSS A4 Ground Ground pin. Short directly to board ground plane.
OUT1M 19 Analog Output Analog output 1M pin
OUT1P 20 Analog Output Analog output 1P pin
OUT2P 21 Analog Output Analog output 2P pin
OUT2M 22 Analog Output Analog output 2M pin
AVDD 23 Analog Supply Analog power supply (1.8V or 3.3V, nominal)
VREF 24 Analog Analog reference voltage filter output

 
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