Best USB Audio Single Chip for PC Speakers Solution CM102-A+/102S+ USB 2CH Audio Controller for Speaker Datasheet Version 1.01 C-MEDIA ELECTRONICS INC. TEL: 886-2-8773-1100 FAX: 886-2-8773-2211 6F, 100, Sec. 4, Civil Boulevard, Taipei, Taiwan 106, R.O.C. For detailed product information, please contact [email protected] CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated NOTICES THIS DOCUMENT IS PROVIDED “AS IS” WITH NO WARRANTIES WHAT SO EVER, INCLUDING ANY WARRANTY OF MERCHANT ABILITY, NONINFRINGEMENT, FITNESS FOR ANY PARTICULAR PURPOSE, OR ANY WARRANTY OTHERWISE ARISING OUT OF ANY PROPOSAL, DOCUMENT OR SAMPLE. ALL RIGHTS RESERVED. NO PART OF THIS DOCUMENT MAY BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY ANY MEANS, ELECTRONIC OR MECHANICAL, INCLUDING INFORMATION STORAGE AND RETRIEVAL SYSTEMS, WITHOUT PERMISSION IN WRITING FROM C-MEDIA ELECTRONICS, INC. COPYRIGHT U Copyright (c) 2005-2007 C-Media Electronics Inc. All rights reserved. All content included on this document, such as text, graphics, logos, button icons, images, audio clips, digital downloads, data compilations, and software, is either the exclusive property of C-Media Electronics Inc., its affiliates (collectively, "C-Media"), its content suppliers, or its licensors and protected by Republic of China and international copyright laws. TRADEMARKS U C-Media, the C-Media Logo, Xear 3D, Xear 3D Logo, Speaker Shifter, Smart Jack, and Smart Audio Jack are trademarks of C-Media Electronics Inc. in Republic of China and/or other countries. All other brand and product names listed are trademarks or registered trademarks of their respective holders and are hereby recognized as such. *C-Media reserves the right to modify the specifications without further notice* Date: 09/25/2005 Version: -2- 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated TABLE OF CONTENTS 1. DESCRIPTIONS AND OVERVIEW 5 2. FEATURES 6 3. PIN/SIGNAL DESCRIPTIONS 7 3.1 PIN ASSIGNMENT BY PIN NUMBER 7 3.2 PIN-OUT DIAGRAM 7 3.3 PIN SIGNAL DESCRIPTIONS 8 4. BLOCK DIAGRAM 10 5. ORDERING INFORMATION 11 6. FUNCTION DESCRIPTIONS 12 6.1 12 USB INTERFACE 6.1.1 DEVICE DESCRIPTOR 12 6.1.2 CONFIGURATION DESCRIPTOR 13 6.1.3 USB AUDIO TOPOLOGY DIAGRAM 13 6.2 14 DYNAMIC RANGE CONTROL (DRC) 7. ELECTRICAL CHARACTERISTICS 15 7.1 ABSOLUTE MAXIMUM RATING 15 7.2 OPERATION CONDITIONS 15 7.3 SPERKER IMPEDANCE V.S. OUTPUT POWER (PER CHANNEL) 16 7.4 AUDIO PERFORMANCE 16 8. AUDIO PERFORMANCE CURVES 18 8.1 18 FREQUENCY RESPONSE (10K OHM LOADING) 8.1.1 18 FREQUENCY RESPONSE @ 44.1 KS/SEC Date: 09/25/2005 Version: -3- 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 8.1.2 8.2 18 FREQUENCY RESPONSE @ 48 KS/SEC 19 PASSBAND RIPPLE (10K OHM LOADING) 8.2.1 PASSBAND RIPPLE @ 44.1 KS/SEC 19 8.2.2 PASSBAND RIPPLE @ 48 KS/SEC 19 9. REFERENCE APPLICATION CIRCUIT 20 10. REFERENCE 20 Date: 09/25/2005 Version: -4- 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 1. DESCRIPTIONS AND OVERVIEW CM102-A+/102S+ series is a highly integrated single chip for USB stereo speakers application. Minimum external components are needed for building an USB speaker system, which makes CM102-A+/102S+ a simple and very cost-effective solution. Since no driver is necessary for audio playback on all major OS. CM102-A+/102S+ provides a truly plug-and-play feature for external digital audio playback. For energy saving, USB suspend mode and resume is supported by CM102-A+/102S+. With power amplifier enable pin and volume control VR input pin, a traditional speaker front panel design can be built. This new single chip not only support 44.1KHz and 48KHz sampling rate playback but also with X2 modulation for hi-frequency quality. Better yet, simplify anti-pop noise solution was embedded on chip for general pop noise issues. All of the functions have been approved by USB IF certification program. More flexible and customized design is possible with GPIO pin, which is accessible by USB vendor specific request. 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. The Dynamic Range Control function can support high efficiency volume output to get loudness sound effect similar D class amplifier capability. Vender can just using single chip to saving external amplifier component and getting a better listen experience when listen to a music source with wide dynamic range. Moreover, customers can use C-Media USB Audio Driver with Xear 3D functions to show up digital speaker features and upgrade PC multi-media stereo function to be a CE like devices. Xear 3D can support 10 band Equalizer, EnvironmentFX sound effects and virtual 7.1CH speaker shifter. This driver is optional for free bundle. Best USB Audio Chip for Digital Stereo Speakers Solution Date: 09/25/2005 Version: -5- 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 2. FEATURES USB 2.0 Full Speed Compatible and USB IF Certification USB audio device class specification v1.0 Compatible USB bus powered 500mA operation with suspend mode support USB audio function topology has 1 input terminal, 1 output terminal, and 1 feature unit Embedded high performance 16 bit stereo audio DAC Embedded Digital Control Power Amplifier for Speaker Driving Embedded power on reset block and Power amplifier enable / disable control pin Embedded X2 Modulation for Higher Audio Quality Embedded Anti-Pop Circuit with Internal Feedback Structure Embedded 5V to 3.3V Regulator with Voltage Level Detector for Single 5V External Power Supply Alternate zero bandwidth setting for releasing bandwidth on USB bus during inactive operation Single 12MHz crystal input with on-chip PLL and embedded USB transceiver Support Dynamic Range Control (DRC) Feature to Provide a Better Listen Experience Volume control input with simple external VR circuit Isochroous transfer using adaptive synchronization with internal PLL High performance 16-Bit Stereo, 48 / 44.1 KHz Sampling Rate for Audio Playback 3.3V IO with 5V tolerance; 3.3V core logics design GPIO pin for application specific usage Support S/PDIF output interface LED Indicator Pin During Playback Compatible with Win 98SE / Win ME / Win 2000 / Win XP, and Mac OS 9 / OS X without additional driver USB Software Drive Xear 3D Sound Technology With HRTF 3D, EAXTM, Speaker Shifter and Virtual 7.1CH effects for free bundle Compact 18 pin PDIP and SOP package Date: 09/25/2005 Version: -6- 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 3. PIN/SIGNAL DESCRIPTIONS 3.1 PIN ASSIGNMENT BY PIN NUMBER Pin # Signal Name Pin # Signal Name 1 PAEN 10 TEST 2 GPIO 11 VREF 3 XO 12 VOLADJ 4 XI 13 AVDD 5 DVDD5V 14 LOL 6 REGV 15 LOR 7 USBDP 16 AVSS 8 USBDM 17 SPDIFO 9 DVSS 18 PDSW 3.2 PIN-OUT DIAGRAM Date: 09/25/2005 Version: -7- 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 3.3 PIN SIGNAL DESCRIPTIONS Pin # Symbol Type Description Power Amplifier Control Input, Connect to a Switch or Pull-High in Normal Operation. 1 PAEN DI, ST H: Enable Power Amplifier (Normal Mode) L: Disable Power Amplifier DIO, 8mA, ST, GPIO Pin, Controlled via Vender Specific Command SR, PD 2 GPIO 3 XO AO Output Pin for 12MHz Oscillator 4 XI AI Input Pin for 12MHz Oscillator 5 DVDD5V P 5V Power Supply 6 REGV AO Regulator output 3.3v 7 USBDP AIO USB Data D+ 8 USBDM AIO USB Data D- 9 DVSS P 10 TEST DI, ST, PD 11 VREF AO Digital Ground Test Mode Select Pin, Pull-Down in normal Operation Connecting to External Decoupling Capacitor for Embedded Bandgap Circuit; 2.25V Output Analog Volume Control Input from external VR circuit. 12 VOLADJ AI 0 ~ 2.25V: +12 dB ~ 3 dB / mute 3.5 ~ 5V: 0 dB 13 AVDD P 14 LOL AO Line Out Left Channel 15 LOR AO Line Out Right Channel 5V Power Supply for Analog Circuit Date: 09/25/2005 Version: -8- 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 16 AVSS P 17 SPDIFO DO, 8mA, SR Analog Ground S/PDIF Data Output Power Down Switch Control Signal Output 18 PDSW DO, 8mA, SR 1: Normal Mode 0: Power Down Mode (Suspend Mode) *Note :DI / DO / DIO – Digital Input / Output / Bi-Directional Pad U AI / AO / AIO – Analog Input / Output / Bi-Directional Pad P – Power Pin SR – Slew Rate Control ST – Schmitt Trigger PD / PU – Pull Down / Pull Up 5VT – 5 Volt Tolerant (3.3V Pad) Date: 09/25/2005 Version: -9- 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 4. BLOCK DIAGRAM Block Diagram Of CM102-A+/102S+ Date: 09/25/2005 Version: - 10 - 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 5. ORDERING INFORMATION Model Number Package CM102-A+/102S+ 18-Pin PDIP 18-Pin SOP Outline of Dimensions Operating Ambient Temperature 0 o C to +70 o C 0 o C to +70 o C Supply Range DVdd = 5V, AVdd = 5V DVdd = 5V, AVdd = 5V Dimensions shown in inches and (mm) 18- Plastic dual-in-line packaging (PDIP) 18- Pin SOP Mechanical Dimension of CM102-A+ Mechanical Dimension of CM102S+ Date: 09/25/2005 Version: - 11 - 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 6. FUNCTION DESCRIPTIONS 6.1 USB INTERFACE 6.1.1 DEVICE DESCRIPTOR Offset Field Size Value (Hex) 0 bLength 1 12 Total 18 Bytes 1 bDescriptorType 1 01 Device Descriptor 2 bcdUSB 2 0110 4 bDeviceClass 1 00 5 bDeviceSubClass 1 00 6 bDeviceProtocol 1 00 7 bMaxPacketSize0 1 08 8 idVendor 2 0D8C Vendor ID 10 idProduct 2 0103 Product ID 12 bcdDevice 2 0010 Device Release Number 14 iManufacturer 1 01 Index of string descriptor describing manufacturer -> “C-Media INC.” 15 iProduct 1 02 Index of string descriptor describing product -> "C-Media USB Audio Description USB 1.1 compliant. Endpoint Zero Size = 8 bytes 16 iSerialNumber 1 00 Index of string descriptor describing the device’s serial number 17 bNumConfigurations 1 01 Configurations number = 1 Date: 09/25/2005 Version: - 12 - " 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 6.1.2 CONFIGURATION DESCRIPTOR Offset Field Size Value (Hex) 0 bLength 1 09 Total 9 Bytes 1 bDescriptorType 1 02 Configuration Descriptor 2 wTotalLength 2 008D 4 bNumInterfaces 1 03 5 bConfigurationValue 1 01 6 iConfiguration 1 00 7 bmAttributes 1 80 Self-powered without Remote Wakeup 8 bMaxPower 2 FA Maximum power consumption of the USB. 0xFA=500 mA Description Total length of data returned for this configuration. Number of interfaces supported by this Configuration. 6.1.3 USB AUDIO TOPOLOGY DIAGRAM USB streaming ID = 01 Feature Unit (Volume) (Mute) ID = 0D Date: 09/25/2005 Speaker ID = 03 Version: - 13 - 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 6.2 DYNAMIC RANGE CONTROL (DRC) CM102-A+/102S+ include a new feature called Dynamic Range Control (DRC), and with a default ON setting (Users can still turn it off within the Windows audio advance control panel) Dynamic range is defined as the difference, in decibels (dB), between the loudest and quietest sounds in any particular piece of audio content. Classical music is a good example, with ranges from piano (soft) to forte to FFF (for extremely loud). Movies also typically have a wide dynamic range, which may cause you to have to turn the volume up and down as scenes change. For example, when watching a movie at home, you may be forced to turn up volume to hear the dialog in a quiet scene, and then quickly turn it down again during a car chase scene that follows. In this way, there may be times in a home theater environment when it would be useful to be able to control the dynamic range. +20dB +10dB Peaks Reduced 0dB -10dB -20dB -30dB -40dB -50dB B A Lower Levels Raised -60dB With Dynamic Range Control enabled, the full dynamic range (A) of the program is reduced (B). Peaks Clipped Peaks Reduced DRC Lower Levels hard to heard A B Lower Levels Raised Date: 09/25/2005 Version: - 14 - 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 7. ELECTRICAL CHARACTERISTICS 7.1 ABSOLUTE MAXIMUM RATING Symbol Parameter Value Unit Dvmin Min Digital Supply Voltage – 0.3 V Dvmax Max Digital Supply Voltage +6 V Avmin Min Analog Supply Voltage – 0.3 V Avmax Max Analog Supply Voltage +6 V Dvinout Voltage on any Digital Input or Output Pin –0.3 to +5.5 V Avinout Voltage on any Analog Input or Output Pin –0.3 to +5.5 V T stg Storage Temperature Range -40 to +125 B B 0 P C P ESD (HBM) ESD Human Body Mode 2000 V ESD (MM) ESD Machine Mode 200 V Latchup Latch Up Test 200 mA 7.2 OPERATION CONDITIONS Min Typ Max Unit Analog Supply Voltage 4.5 5.0 5.5 V Digital Supply Voltage 4.5 5.0 5.5 V Total Power Consumption - - 500 mA Suspend Mode Power Consumption - - 320 uA Operating ambient temperature 0 - 70 Date: 09/25/2005 o P C P Version: - 15 - 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 7.3 SPERKER IMPEDANCE VS. OUTPUT POWER (PER CHANNEL) Loading (Ohm) 4 Ohm 8 Ohm 32 Ohm 10K Ohm Vpp 3.14 3.4 3.635 3.722 Vrms 1.11 1.202 1.285 1.316 W(rms/sin wave) 308 mW 181 mW 52 mW 0.17 mW W(rms/square wave) 616 mW 361 mW 103 mW 0.35 mW W(PMPO) 2460 mW 1450 mW 410 mW 1 mW Items *Note1: Test Condition @ 25oC, 5 Volt +- 10% *Note2: Typical Output with THD+N < 1%; Maximal Output with THD+N < 10% 7.4 AUDIO PERFORMANCE Min Typ Max Unit Resolution -- 16 -- Bits Frequency response @ 48KHz 20 -- 20K Hz Frequency Response @ 44.1KHz 20 -- 20K Hz Passband Ripple @ 48 KHz 40 -- 9.6K Hz Passband Ripple @ 44.1 KHz 40 -- 8.8K Hz SNR -- 97.75 -- dB Dynamic Range -- 96.27 -- dB THD + N -- -67.97 -- dB Output Voltage (rms) - 1.316 - Vrms DAC (10K Ohm Loading) Date: 09/25/2005 Version: - 16 - 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated DAC (32 Ohm Loading) SNR -- 97.68 -- dB Dynamic Range -- 95.99 -- dB THD + N -- -57.82 -- dB Output Voltage (rms) - 1.285 - Vrms SNR -- 97.67 -- dB Dynamic Range -- 96.03 -- dB THD + N -- -53.28 -- dB Output Voltage (rms) - 1.202 - Vrms SNR -- 97.45 -- dB Dynamic Range -- 95.89 -- dB THD + N -- -52.76 -- dB Output Voltage (rms) - 1.11 - Vrms DAC (8 Ohm Loading) DAC (4 Ohm Loading) Date: 09/25/2005 Version: - 17 - 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 8. AUDIO PERFORMANCE CURVES 8.1 FREQUENCY RESPONSE (10K OHM LOADING) 8.1.1FREQUENCY RESPONSE @ 44.1 KS/SEC C-MEDIA Digital Playback (PC-D -A) for Line Output Frequency Response 05/31/05 14:10:33 +1 +0 d B r -1 -2 -3 A -4 -5 -6 20 50 100 200 500 1k 2k 5k 10k Hz Sw ee p Trace C olor Line Style Thick D ata Axis 1 1 1 2 C yan Yellow Solid Solid 3 3 Fas ttes t.C h.1 Am pl!N orm alize Fas ttes t.C h.2 Am pl!N orm alize Left Left C om m ent WL-Multitone-44k.at2c 8.1.2 FREQUENCY RESPONSE @ 48 ks/sec C-MEDIA Digital Playback (PC-D-A) for Line Output Frequency Response 05/31/05 14:07:22 +1 +0 d B r -1 -2 -3 A -4 -5 -6 30 50 100 200 500 1k 2k 5k 10k Hz Sw eep Trace C olor Line Style Thick D ata Axis 1 1 1 2 C yan Yellow Solid Solid 3 3 Fas ttes t.C h.1 Am pl!N orm alize Fas ttes t.C h.2 Am pl!N orm alize Left Left C om m ent WL-Multitone-48k.at2c Date: 09/25/2005 Version: - 18 - 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 8.2 PASSBAND RIPPLE (10K OHM LOADING) 8.2.1 PASSBAND RIPPLE @ 44.1 ks/sec C-MEDIA Digital Playback (PC -D-A) for Line Output Passband Ripple @44.1ks/sec 05/31/05 14:11:07 +0.4 +0.2 d B -0 -0.2 -0.4 40 50 100 200 500 1k 2k 5k 8k Hz Sw eep Trace C olor Line Style Thick D ata Axis 1 1 1 2 C yan Yellow Solid Solid 3 3 Fas ttes t.C h.1 Am pl!N orm alize Fas ttes t.C h.2 Am pl!N orm alize Left Left C om m ent WL-Pas s bandR ipple-M44k.at2c 8.2.2 PASSBAND RIPPLE @ 48 ks/sec C-MEDIA Digital Playback (PC -D-A) for Line O utput Passband R ipple @ 48ks/sec 05/31/05 14:09:08 + 0.4 + 0.2 d B -0 -0.2 -0.4 40 50 100 200 500 1k 2k 5k 9k Hz Sw eep Trace C olor Line Style Thick D a ta Axis 1 1 1 2 C yan Yello w Solid Solid 3 3 Fas tte s t.C h.1 Am pl!N o rm alize Fas tte s t.C h.2 Am pl!N o rm alize Left Left C o m m en t WL-Pa s s ba ndR ipple-M48k.at2c Date: 09/25/2005 Version: - 19 - 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 9. REFERENCE APPLICATION CIRCUIT Date: 09/25/2005 Version: - 20 - 1.01 CM102-A+/102S+ USB Stereo Audio Chip for Speaker Integrated 10. REFERENCE ♦ Universal Serial Bus Specification, Version 2.0 ♦ Universal Serial Bus Device Class Definition for Audio Devices, Version 1.0. ♦ Universal Serial Bus Device Class Definition for Human Interface Devices (HID), Version 1.11 －End of Specifications－ C-MEDIA ELECTRONICS INC. 6F., 100, Sec. 4, Civil Boulevard, Taipei, Taiwan 106 R.O.C. TEL:886-2-8773-1100 FAX:886-2-8773-2211 E-mail：[email protected] URL：http://www.cmedia.com.tw Date: 09/25/2005 Version: - 21 - 1.01