PCM1774

ACTIVE

93dB SNR Low-Power Stereo DAC with HP Amplifier (S/W Control)

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Product details

Parameters

DAC channels 2 Analog inputs 0 Analog outputs 2 DAC SNR (Typ) (dB) 93 Sampling rate (Max) (kHz) 50 Control interface SPI, I2C Resolution (Bits) 16 Architecture Delta-Sigma open-in-new Find other Audio DACs

Package | Pins | Size

VQFN (RGP) 20 16 mm² 4 x 4 open-in-new Find other Audio DACs

Features

  • Analog Front End:
    • Stereo Single-Ended Input
    • Microphone Amplifier (12 dB, 20 dB)
  • Analog Back End:
    • Stereo/Mono Line Output With Volume
    • Stereo/Mono Headphone Amplifier With Volume
  • Analog Performance:
    • Dynamic Range: 93 dB
    • 40-mW + 40-mW Headphone Output at RL = 16
  • Power Supply Voltage
    • 1.71 V to 3.6 V for Digital I/O Section
    • 1.71 V to 3.6 V for Digital Core Section
    • 2.4 V to 3.6 V for Analog Section
    • 2.4 V to 3.6 V for Power Amplifier Section
  • Low Power Dissipation:
    • 6.4 mW in Playback, 1.8 V/2.4 V, 44.1 kHz
    • 3.3 µW in Power Down
  • Sampling Frequency: 5 kHz to 50 kHz
  • Operation From a Single Clock Input Without PLL
  • System Clock:
    • Common-Audio Clock (256 fS/384 fS), 12/24, 13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHz
  • 2 (I2C™) or 3 (SPI) Wire Serial Control
  • Programmable Function by Register Control:
    • Digital Attenuation: 0 dB to -62 dB
    • Digital Gain of DAC: 0, 6, 12, 18 dB
    • Power Up/Down Control for Each Module
    • 6-dB to -70-dB Gain for Analog Outputs
    • 0/12/20 dB for Microphone Input
    • 0-dB to -21-dB Gain for Analog Mixing
    • Three-Band Tone Control and 3D Sound
    • Analog Mixing Control
  • Pop-Noise Reduction Circuit
  • Short Protection Circuit
  • Package: 4-mm × 4-mm QFN Package
  • Operation Temperature Range: -40°C to 85°C
  • APPLICATIONS
    • Portable Audio Player, Cellular Phone
    • Video Camcorder, Digital Still Camera
    • PMP/DMB/PND

I2C is a trademark of Philips Electronics.

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Description

The PCM1774 is a low-power stereo DAC designed for portable digital audio applications. The device integrates headphone amplifier, line amplifier, line input, boost amplifier, programmable gain control, analog mixing, and sound effects. It is available in a small-footprint, 4-mm × 4-mm QFN package. The PCM1774 supports right-justified, left-justified, I2S, and DSP formats, providing easy interfacing to audio DSP and decoder/encoder chips. Sampling rates up to 50 kHz are supported. The user-programmable functions are accessible through a two- or three-wire serial control port.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet 16-Bit Low Power Stereo Audio DAC w/Analog Mixing Headphone Outputs datasheet Jul. 30, 2007
User guide DEM-DAI1774 EVM User's Guide Feb. 15, 2008
Application note Dynamic Performance Testing of Digital Audio D/A Converters Oct. 02, 2000
Application note A Low Noise, Low Distortion Design for Antialiasing and Anti-Imaging Filters Sep. 27, 2000
Application note THD+N Versus Frequency Characteristics and Spectra of the PCM1717/18/19/20/23/27 Sep. 27, 2000

Design & development

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Software development

SUPPORT SOFTWARE Download
SLAC238.ZIP (5997 KB)

Design tools & simulation

SIMULATION MODEL Download
SLAM131.ZIP (31 KB) - IBIS Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
QFN (RGP) 20 View options

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