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DAC 2-CH Delta-Sigma 16-bit 28-Pin SSOP Bulk

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PCM2704CDB General Description

The PCM270xC are TI?s single-chip USB stereo audio digital-to-analog converters (DACs) with USB 2.0 compliant full-speed protocol controller and S/PDIF. The USB-protocol controller works with no software code, but USB descriptors can be modified in some areas (for example, vendor ID/product ID) through the use of an external ROM (PCM2704C and PCM2706C) or serial peripheral interface (SPI) (PCM2705C and PCM2707C). The PCM270xC also employ SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog phase-locked loops (PLLs) with SpAct enable playback with low clock jitter.

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Key Features

  • On-Chip USB Interface:
    • No Dedicated Device Driver Needed
    • Full-Speed Transceivers
    • Fully Compliant With USB 2.0 Specification
      • USB 1.1 Descriptors With USB Audio
        Class Support
    • Certified by USB-IF
    • Partially Programmable Descriptors
    • Adaptive Isochronous Transfer for Playback
    • Bus-Powered or Self-Powered Operation
  • Sampling Rates: 32 kHz, 44.1 kHz, and 48 kHz
  • On-Chip Clock Generator With Single 12-MHz
    Clock Source
  • Single Power Supply:
    • Bus-Powered: 5 V, Typical (VBUS)
    • Self-Powered: 3.3 V, Typical
  • 16-Bit Delta-Sigma Stereo DAC
    • Analog Performance at 5 V (Bus-Powered),
      3.3 V (Self-Powered):
      • THD + N: 0.006% RL > 10 kΩ, Self-
      • THD + N: 0.025% RL = 32 Ω
      • SNR = 98 dB
      • Dynamic Range: 98 dB
      • PO = 12 mW, RL = 32 Ω
    • Oversampling Digital Filter
      • Passband Ripple = ±0.04 dB
      • Stop-Band Attenuation = –50 dB
    • Single-Ended Voltage Output
    • Analog LPF Included
  • Multiple Functions:
    • Up to Eight Human Interface Device (HID)
      Interfaces (Model and Setting Dependent)
    • Suspend Flag
    • S/PDIF Out With SCMS
    • External ROM Interface (PCM2704C/6C)
    • Serial Programming Interface (PCM2705C/7C)
    • I2S Interface (Selectable on PCM2706C/7C)
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Texas Instruments, Inc Inventory


Category Integrated Circuits (ICs)Data AcquisitionADCs/DACs - Special Purpose Mfr Texas Instruments
Series - Package Bulk
Product Status Active Type Audio
Number of Channels 1 Resolution (Bits) 16 b
Sampling Rate (Per Second) 48k Data Interface SPI, USB
Voltage Supply Source Analog and Digital Voltage - Supply 3V ~ 3.6V, 5V
Operating Temperature -25°C ~ 85°C Mounting Type Surface Mount
Package / Case 28-SSOP (0.209", 5.30mm Width) Supplier Device Package 28-SSOP
Base Product Number PCM2704

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Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

warranty Warranty & Returns

Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.

Ratings and Reviews

G**n 2023-10-29

Tested and works fine. Draws around 100mA at 6V no load. 500mA when trying to stall it. Good torque for being so small.First shipment failed, but seller responded immediately and offered free DHL shipping. A+ Seller. Very trustworthy!

N**s 2023-05-08

Long went the order but there are no complaints about the quality.

A**a 2022-11-16

The goods received, everything is fine... Thank you...

L**e 2020-05-12

Went long.Until i checked



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