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Burr-Brown Audio
PCM2704C, PC...
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Sample & Buy
Technical Documents
Tools & Software
Support & Community
Burr-Brown Audio
PCM2704C, PCM2705C, PCM2706C, PCM2707C
SBFS036B – MAY 2015 – REVISED AUGUST 2015
PCM270xC Stereo Audio DAC With USB Interface, Single-Ended Headphone Output and
S/PDIF Output
1 Features
1 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-
Powered – 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)
2 Applications
USB Headphones ...