Products > Integrated Circuits (ICs) > Audio ICs > CM103
  • CM103

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Audio ICs QFP48

  • Package/Case :
  • QFP48
  • Product Categories :
  • Audio ICs
  • RoHs Status:
  • Lead free / RoHS Compliant
  • In-stock:
  • 1440


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CM103 Product Details

CM103+ is a highly integrated single chip for USB digital control speaker application. It is a truly plug-and-play USB audio device and provided high quality digital sound playback. This one chip solution not only embedded USB transceiver, ADC, DAC component but also integrated digital control power amplifier function for USB digital sound application. Minimum external components are needed for building a high-end 2CH USB speaker system, which makes CM103+ a simple and very cost-effective solution. Since no driver is necessary for audio playback on all major OS.


● USB 2.0 Full Speed Compatible and USB IF certification
● USB Audio Devices Class Specification Ver1.0 Compatible
● USB Bus Powered 500mA, without External Power Supply
● High performance 16-Bit Stereo, 48 / 44.1 KHz Sampling Rate for Audio Playback
● S/PDIF Output Interface
● Embedded USB Transceiver
● Embedded High Performance 16-Bit Audio DAC
● Embedded Digital Control Power Amplifier for Speaker Driving
● Support Power Amplifier Enable / Disable Control Pin
● Support Dynamic Range Control (DRC) Feature to Provide a Better Listen Experience
● Embedded Power-On-Reset Block
● Embedded 5V to 3.3V Regulator with Voltage Level Detector for Single 5V External Power Supply
● Embedded Temperature Protection Circuit
● Embedded X2 Modulation for Higher Audio Quality
● Embedded Anti-Pop Circuit with Internal Feedback Structure
● Single 12MHz Crystal Input with Embedded PLL
● Isochronous Transfer using Adaptive Synchronization with Internal PLL
● External EEPROM Interface for Vendor Specific VID / PID / Product String
● EEPROM Read / Write Function via Vendor Specific Request for Mass Production Convenience
● Analog Volume Control Input with Simple External VR Circuit
● Digital Volume Control Input with Digital Rotary Encoder or Vol_up / Vol_dn / Play_mute Bottoms
● Vol_up / Vol_dn / Play_mute Pins and Digital Rotary Encoder Interface Support USB HID Devices Class Ver1.11 for Host Volume Control Synchronization
● Supports USB Suspend / Resume Mode and Remote Wakeup with Digital Volume Control Pins
● LED Indicator Pin During Playback
● 1 GPIO pin for Application Specific Usage
● 3.3V I/O with 5V Tolerance
● Dolby® Digital and DTS Audio Streaming via S/PDIF Output
● Compatible with Win 98SE / Win ME / Win 2000 / Win XP, and Mac OS 10.X without additional driver

Technical Parameters

  • Manufacturer
  • Packing
  • Tape & Reel (TR)/Cut Tape (CT)/Tray/Tube
  • RoHs Status
  • Lead free / RoHS Compliant
  • Package/Case
  • QFP48

CM103 Related Products

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  • **rnst***

    fast shipping, good,A+++

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Shipping More
Estimated Delivery Time: Aug 23 - Aug 28 days (choose Expedited at checkout).

Shipping & Payment


  • Shipping Type
  • Ship Fee
  • Lead Time
  • $20.00-$40.00 (0.50 KG)
  • 2-5 days
  • $20.00-$40.00 (0.50 KG)
  • 3-7 days
  • $20.00-$45.00 (0.50 KG)
  • 2-5 days
  • $25.00-$65.00 (0.50 KG)
  • 2-5 days
  • $25.00-$45.00 (0.50 KG)
  • 5-14 days
  • $2.00-$3.00 (0.10 KG)
  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Terms of payment
  • Hand Fee
  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that CM103 is the original manufacturer or agent of C-MEDIA?
We have a professional business development department to strictly test and verify the qualifications of C-MEDIA original manufacturers and agents. All C-MEDIA suppliers must pass the qualification review before they can publish their CM103 devices; we pay more attention to the channels and quality of CM103 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of CM103 chips? Including C-MEDIA original factory information, application, CM103 pictures?
You can use Jotrin's intelligent search engine, or filter by Audio ICs category, or find it through C-Media Electronics Information page.
Q: Are the C-MEDIA's CM103 price and stock displayed on the platform accurate?
The C-MEDIA's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for CM103, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of CM103?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the CM103 we delivered, we will accept the replacement or return of the CM103 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of CM103.
(3)The CM103 is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as CM103 datasheet pdf, CM103 pin diagram?
Need any After-Sales service, please feel free contact us:

C-Media Electronics

Founded in 1991 and headquartered in Taipei, C-Media Electronics became the leading supplier of high-end audio solutions in the world with PCI multi-channel audio chips, and successfully developed AC'97 and HDA in the PC motherboard market. The built-in application has successfully occupied the P...

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