ماژول تبدیل USB به I2S با چیپ PCM2706 یک ماژول مبدل صوت با انکودر DAC است و فرکانس نمونه برداری حداکثر آن 48 کیلوهرتز است. از این مبدل یا
ماژول کانورتر USB به I2S برای دریافت خروجی I2S استفاده می شود اما ممکن است درگیر نویز خروجی شوند. استفاده از چیپ PCM2706 باعث افزایش سرعت تبدیل نسبت به چیپ های قدیمی تر شده است.
ماژول کانورتر USB به I2S برای تقویت صوت OTG قابل استفاده است و با ویندوزهای 7، 8 ،10، مک و تلفن همراه سازگاری دارد.
Description:
The PCM2706 is TI's single-chip USB stereo audio DAC with USB-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 parts (for example, vendor ID/product ID) through the use of an external ROM (PCM2704/6) or on request. The modification of the USB descriptor through external ROM or SPI must comply with USB-IF guidelines, and the vendor ID must be your own ID as assigned by the USB-IF. The descriptor also can be modified by changing a mask; contact your representative for details. The PCM2704/5/6/7 employs SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback with low clock jitter.
This module is converter from USB to I2S bus up to 48kHz sample frequency. It use circuit PCM2706 from Texas Instruments. It is connected in mode where send his output to signals in format of I2S bus. Analog part is completely unconnected similar to S/PDIF output which can't be used in this mode. I2S output is electrically isolated to prevent of ground loops and his troubles with noise and hum on the output.
Application:
USB Headphones
USB Audio Speaker
USB CRT/LCD Monitor
USB Audio Interface Box
USB-Featured Consumer Audio Product
Features:
Single Power Supply:
Bus-Powered: 5 V, Typical (VBUS)
Self-Powered: 3.3 V, Typical
Sampling Rate: 32, 44.1, 48 kHz
16-Bit Delta-Sigma Stereo DAC
Type: I2S DAC Decoder
Supporting Android 4.0 And Above Version
Can I2S external DAC WINXP WIN7 WIN8 WIN10 decoder, support MAC or mobile phone OTG