OxygenTM Express CM8826 High Performance PCI Express Audio Processor FEATURES DESCRIPTION The Oxygen Express™ HD CM8826 is a high quality PCI express multi-channel audio processor that not only an Intel HD Audio specification compatible Compatible with PCI Express 1.1 interface with bus mastering and burst modes Embedded an 8051-based MCU to transcode HD Audio command s(An external 4 or 8KB serial audio single chip, but also can be a controller EEPROM is required which can link HDA codec. CM8826 can be built in Build in HD Audio controller. the home audio electronics or personal computer Audio format supports 96K/48K/44.1K and to provide high fidelity sound and become a professional audio processing center in your life. It supports up to 8 outgoing channels and 4 ingoing channels. The 8 outgoing channels are composed of 2 playback DMA’s, which are multi-channel DMA (24 bits, 6 channels, 96k), S/PDIF (each 24 bits, 2 channels, 96k). The 6 ingoing channels are spread in 2 recording DMA’s , which are 2 channel line in, 16/24bits resolution integrated 96K/48K/44.1K, and 16/24-bit S/PDIF transmitter Supports SPI/I2C control interface 24.576MHz crystal input required with embedded PLL for adaptive clock rate Win7/8 WHQL compatible 2 channel mic (up to 24 bits, 96k) BLOCK DIAGRAM Block Diagram www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 1/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor TABLE OF CONTENTS Revision History....................................................................................................................................... 3 1. Description and Overview ................................................................................................................ 4 2. Features ............................................................................................................................................ 5 3. Applications ..................................................................................................................................... 7 4. Software and Features ...................................................................................................................... 7 5. Block Diagram ................................................................................................................................. 8 6. Pin Assignment ................................................................................................................................. 9 6.1 Pin-Out Diagram ........................................................................................................... 9 7. Electrical Characteristics ................................................................................................................ 14 7.1 Maximum Ratings ....................................................................................................... 14 7.2 Recommended Operation Conditions ......................................................................... 14 7.3 Power Consumption .................................................................................................... 14 7.4 DC Characteristics....................................................................................................... 14 7.5 AC Timing Characteristics .......................................................................................... 15 7.5.1 I2S Signal Timing................................................................................................... 15 7.5.2 Control Interface Timing - 3 - Wire Mode ............................................................. 16 7.5.3 EEPROM Interface Timing .................................................................................... 18 7.5.4 EEPROM AC Timing Characteristics .................................................................... 19 7.5.5 HD Audio-Link Timing Characteristics: ................................................................ 20 8. Mechanical Specification ............................................................................................................... 22 www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 2/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor Revision History Date Rev. Release Note 2011/12/22 Rev. 0.9 First release 2012/02/02 Rev. 0.91 -modify 3.3v power range -add power consumption 2012/05/07 Rev. 0.92 -modify pin definition table -modify block diagram -modify software and features 2013/09/13 Rev. 1.0 Formal Release www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 3/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor 1. Description and Overview The Oxygen Express™ HD CM8826 is a high quality PCI express multi-channel audio processor that not only an Intel HD Audio specification compatible audio single chip, but also can be a controller which can connect HDA codec. CM8826 can be built in the home audio electronics or personal computer to provide high fidelity sound and become a professional audio processing center in your life. It supports up to 8 outgoing channels and 4 ingoing channels. The 8 outgoing channels are composed of 2 playback DMA’s, which are multi-channel DMA (24 bits, 8 channels, 96k), S/PDIF DMA (each 24 bits, 2 channels, 96k). The 4 ingoing channels are spread in 2 recording DMA’s, which are 2 channel Line in, 2 channel Mic in (up to 24 bits, 192k). The Oxygen Express™ HD CM8826 is a MCU-based audio processor which can co-work with all the usual HDA codecs. The audio topology for HDA spec. can be flexible by only changing the Firmware. This ability gives customers the flexibility to design their products. The HDA-Link, 2-wire master bus, and SPI interfaces are used to transfer audio data and control data between the CM8826 and codecs. To facilitate the connection with the existing home audio electronics, the CM8826 has incorporated the S/PDIF transmitter with 96k sampling rate in it. A master I2C interface is built in to connect with the serial EEPROM to store and retrieve the non-evaporable data for firmware code and the customer applications, such as board configuration, sub-vender and sub-system IDs, or any dynamic data that customers want to save for the next power-on to restore. The Oxygen Express™ HD CM8826 has an independent 2-wire slave bus to communicate with micro control unit (MCU). Strictly speaking, this interface is used as a media for system driver and MCU to talk. There are nine GPIOs pins, which can be used to distinguish if a device is plugged in the phone jack or other purpose. www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 4/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor 2. Features Bus Compatible with PCI Express 1.1 interface with bus mastering and burst modes Architecture Build in HD Audio controller Embedded an 8051-based MCU to transcode HD Audio command to accommodate various external HDA codecs (An external 4 or 8KB serial EEPROM is required] Embedded ROM code for MCU to transcode HD Audio command to control embedded HDA codecs Analog mixer to mix all input data to output streams through HDA codecs DMA Controller Two playback DMAs and two recording DMAs following Vista/Win7 HD Audio controller requirements and to be WaveRT-port-friendly: Playback DMA#A supports up to 8ch audio output (2,4,6 CH configurable by SW driver control) Playback DMA#B supports independent 2ch audio output for S/PDIF Recording DMA#A supports up to 2ch audio input Recording DMA#B supports independent 2ch audio input Sampling rates: all DMA channels support: 96K/48K/44.1K PCM data Resolution (Word-length): all DMA channels support: 16/24bit PCM data transfer modes Audio I/O Intel HD Audio Link supports 1 external HDA codec Integrated 96K/48K/44.1K, and 16/24-bit S/PDIF transmitter All input data can be analog mixed to output streams Control Interface www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 5/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor SPI control interfaces I2C Interface supports both Master and Slave mode Interrupt pin for external MCU read transaction Serial EEPROM programming interface for customizing Sub-VendorID/Sub-DeviceID (and even Vendor/Device IDs as well), storing HDA power-on pin configuration (replacing MB BIOS function) and 8051 ROM-codes (HDA command transcoder) Maximum 9 GPIO pins for external devices control and various purposes General Compliant with Microsoft Win7/8 UAA design guideline and driver Pass Windows 7 Premium Audio logo certification 24.576MHz crystal input required with embedded PLL for adaptive clock rate Single 3.3V power supply 3.3 V digital I/O pads with 5V tolerance Package and Pin Number: LQFP-80 Default target codec: CM9862A www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 6/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor 3. Applications High Definition PCIe sound cards for retailer market Pro-Audio / High-End studio applications Gaming audio devices Bundle selling with high-profile VGA cards or motherboard Embedded system / Industrial computer audio 4. Software and Features Xear™ Living 1.1 Adaptive Volume EAX 2.0 / 3D supported on XP Xear™ surround to support surround speakers(not including headphones) Xear™ SingFX Xear™ MagicVoice Face Lift UI (APO driver architecture on 7/8) Stereo mix (Line-in, Mic-in and Wave files) www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 7/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor 5. Block Diagram Figure 1. Block Diagram of OxygenTM Express CM8826 www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 8/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor 6. Pin Assignment N.C N.C N.C N.C GND DVCC 45 44 43 42 41 XMCU_INT 46 N.C XGPIO_4 51 47 XGPIO_5 52 48 VDD18 53 XPWDN XGPIO_6 54 DVCC XGPIO_7 55 49 XGPIO_8 56 50 XMSDA DVCC 57 59 61 58 N.C XMSCL N.C 60 6.1 Pin-Out Diagram 40 XSCI_0 XSCO_0 N.C 62 39 GND 63 38 GND N.C 64 37 XOSC49 N.C 65 36 XOSC45 N.C 66 35 XGPIO_3 N.C 67 34 XGPIO_2 DVCC 68 33 XGPIO_1 N.C 69 32 XGPIO_0 N.C 70 31 XSPDIFI_0 30 DVCC 29 XTEST 28 XPERSTN 27 XSPI_CEN4 CM8826 71 72 XSPI_CLK 73 XSPI_DIN 74 XSPI_DOUT 75 26 XSPI_CEN5 XSPI_CEN0 76 25 XSPI_CEN6 XSPI_CEN1 77 24 XSPI_CEN7 XSPI_CEN2 78 23 XHDA_RSTN XSPI_CEN3 79 22 XHDA_SYNC XSPDIFO_0 80 21 XHDA_SDI 18 19 20 XHDA_SDO XHDA_BCLK 16 GND 17 15 DVCC VDD18 14 VDD18 V3D3_PLL 13 G_MBIAS 9 HSON 12 8 HSOP IBREF 7 VDDTX 11 6 REFCLK_N 10 5 REFCLK_P GNDPLL 4 GNDRX V_MBIAS 3 HSIP HSIN LQFP-80 2 VDDRX 1 N.C GND Figure 2. Pin-Out Diagram of OxygenTM Express CM8826 www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 9/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor Pin Descriptions The following table gives the pin descriptions for the Oxygen ExpressTM HD CM8826. The abbreviations used in the pin description table are explained below. DI: DO: DIO: AI: PU: PD: digital input signal digital output signal digital bidirectional signal analog input pull-up with 75KΩ resistor pull-down with 75KΩ resistor #: low active signal Table 5.1 Pin description table of Oxygen ExperssTM HD CM8826 Pin No. Pin Name Type Description 1 VDDRX P PHY VDD 2 HSIP AI PHY Signal 3 HSIN AI PHY Signal 4 GNDRX G PHY GND 5 REFCLK_P AI PHY Signal 6 REFCLK_M AI PHY Signal 7 VDDPLL / VDDTX P PHY VDD 8 HSOP AO PHY Signal 9 HSON AO PHY Signal 10 GNDPLL / GNDTX G PHY GND 11 VDDBIAS P PHY VDD 12 IBREF AO PHY Signal 13 GNDBIAS G PHY GND 14 VDD18 P Digital 1.8V Power 15 DVCC P Digital Core power 16 GND G Digital Ground 17 VDD18 P Digital 1.8V Power www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 10/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor 18 DVCC P Digital Core Power 19 XHDA_SDO DO HDA serial data output to codec 20 XHDA_BCLK DO HDA 24MHz serial clock output 21 XHDA_SDI DIO,PD 1 HDA serial data input from codec 22 XHDA_SYNC DO HDA frame synchronization 23 XHDA_RSTN DO HDA codec reset 0 24 XSPI_CEN7 DIO,PU 25 XSPI_CEN6 DIO,PU 26 XSPI_CEN5 DIO,PU 27 XSPI_CEN4 DIO,PU 28 XPERSTN DI,PU PCIe PHY Reset# 29 XTEST DI,PD Test mode enable 30 DVCC P Digital Core Power 31 XSPDIFI_0 DI 1 S/PDIF input 32 XGPIO_0 DIO,PD GPIO0, default input 33 XGPIO_1 DIO,PD GPIO1, default input 34 XGPIO_2 DIO,PD GPIO2, default input 35 XGPIO_3 DIO,PD GPIO3, default input 36 XOSC45 DI,PD 45.1584 MHz Osc in 37 XOSC49 DI,PD 49.1520 MHz Osc in 38 GND G Digital Ground 39 XSCO_0 DIO 24.576 Crystal out 40 XSCI_0 DIO 24.576 Crystal in 41 DVCC P Digital Core Power 42 GND G Digital Ground 43 N.C 44 N.C st SPI chip enable, which select the codec #7 to be controlled SPI chip enable, which select the codec #6 to be controlled SPI chip enable, which select the codec #5 to be controlled SPI chip enable, which select the codec #4 to be controlled st www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 11/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor 45 N.C 46 N.C 47 XMCU_INT 48 N.C 49 DIO,PD 2-wire serial bus interrupt DVCC P Digital Core Power 50 XPWDN DIO,PU Codec Reset (Low active) 51 XGPIO_4 DIO,PD GPIO4, default input 52 XGPIO_5 DIO,PD GPIO5, default input 53 VDD18 P Digital 1.8V Power 54 XGPIO_6 DIO,PD GPIO6, default input 55 XGPIO_7 DIO,PD GPIO7, default input 56 XGPIO_8 DIO,PD GPIO8, default input 57 DVCC P Digital Core Power 58 XMSDA DIO,PU 2-wire serial bus data 59 XMSCL DIO,PU 2-wire serial bus clock 60 N.C 61 N.C 62 N.C 63 GND G Digital Ground 64 N.C 65 N.C 66 N.C 67 N.C 68 DVCC P Digital Core Power 69 N.C 70 N.C 71 N.C 72 GND G Digital Ground 73 XSPI_CLK DIO,PD SPI clock output 74 XSPI_DIN DIO,PD SPI data input 75 XSPI_DOUT DIO,PD SPI data output(master) / data input (slave) 76 XSPI_CEN0 DIO,PU 77 XSPI_CEN1 DIO,PU SPI chip enable, which select the codec #0 to be controlled SPI chip enable, which select the codec #1 to be controlled www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 12/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor 78 XSPI_CEN2 DIO,PU 79 XSPI_CEN3 DIO,PU 80 XSPDIFO_0 DO SPI chip enable, which select the codec #2 to be controlled SPI chip enable, which select the codec #3 to be controlled st 1 S/PDIF transmitter www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 13/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor 7. Electrical Characteristics 7.1 Maximum Ratings Test Conditions DVDD = 3.3V, DGND =0V,TA=+25oC Parameter Storge temperature Symbol Min Typ Max - -25 - +120 o C o C Operating ambient temperature - 0 25 70 DC supply voltage(DVCC) - 3.1 3.3 3.6 V 1.62 1.8 1.98 V - VDD Vrms - W DC supply voltage(VDD18) 7.2 Units I/O pin voltage - GND Power dissipation - - Symbol Min Typ Max Units DVDD Input voltage range - VDD-0.2 VDD VDD+0.3 Vrms DVDD Output voltage range - 0 - VDD Vrms Vavdd-5% Vavdd Vavdd+5% Vrms Symbol Min Typ Max Units Supply current : power up - - 203 - mA Supply current : power down - - 0.2 - uA Recommended Operation Conditions Test Conditions DVDD = 3.3V, DGND =0V,TA=+25oC Parameter AVDD Input voltage range 7.3 Power Consumption Test Conditions DVDD = 3.3V, DGND =0V,TA=+25oC Parameter 7.4 DC Characteristics Test Conditions DVDD = 3.3V, DGND =0V,TA=+25oC Parameter Symbol Min Typ Max Units Vin V DD -0.2 V DD V DD +0.3 V Vout 0 - V DD V High level input voltage Vih 0.7V DD - - V Low level input voltage Vil - - 0.3V DD V High level output voitage Voh 2.4 - - V Low level output voltage Vol - 0.4 V Input leakage current Iil - 10 uA Input voltage range Output voltage range www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 14/23 -10 OxygenTM Express CM8826 High Performance PCI Express Audio Processor Output leakage current 7.5 Iol -10 - 10 uA Output buffer driver current - - 8 - mA SPDIF transmit output driver current - - 8 - mA AC Timing Characteristics 7.5.1 I2S Signal Timing a. System Clock Timing System Clock Timing Diagram Test Conditions DVDD = 3.3V, DGND =0V,TA=+25oC,fs=96KHz,MCLK=512fs,24 bit data,unless otherwise stated System Clock Timing Parameters Parameter Symbol Min Typ Max Units tmclk 20 - - ns MCLK pulse width high tmclkh 10 - - ns MCLK pulse width high tmclkl 10 - - ns 40 50 60 % Max Units MCLK clock cycle time MCLK duty cycle b. Audio Interface Timing Audio Interface Timing Diagram Test Conditions DVDD = 3.3V, DGND =0V,TA=+25oC,fs=96KHz,MCLK=512fs,24 bit data, unless otherwise stated Audio Interface Timing Parameters Parameter Symbol www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 15/23 Min Typ OxygenTM Express CM8826 High Performance PCI Express Audio Processor LRCK propagation delay from BCLK falling edge Tdl 5 - - ns SDOUT propagation delay from BCLK falling edge Tdd 5 - - ns 7.5.2 Control Interface Timing - 3 - Wire Mode Control Interface Timing -3- Wire Diagram Note: latch data at XSPI_CEN clock low mode, XSPI_CEN clock can be low or high mode Test Conditions DVDD = 3.3V, DGND =0V, TA=+25oC, SPI clock 160 ns, unless otherwise stated Control Interface Timing -3- Wire Parameters Parameter Symbol Min Typ Max Units XSPI_CLK rising edge to XSPI_CEN rising edge Tscs 120 - - ns XSPI_CLK pulse cycle time Tscy 160 - - ns XSPI_CLK pulse width low Tscl 80 - - ns XSPI_CLK pulse width high Tsch 80 - - ns XSPI_DOUT to XSPI_CLK set-up time Tdsu 40 - - ns XSPI_DOUT to XSPI_CLK hold time Tdho 40 - - ns XSPI_CEN rising to SCLK rising Tcss 40 - - ns www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 16/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor Control Interface Timing - 2 – Wire Mode Control Interface Timing -2- Wire Diagram Test Conditions DVDD = 3.3V, DGND =0V, TA=+25oC, 2 wire, Fast speed mode, unless otherwise stated Control Interface Timing -2- Wire Parameters Parameter Symbol XMSCL frequency Min Typ Max Units 400 - - KHz XMSCL pulse width low t1 650 - - ns XMSCL pulse width high t2 1.3 - - us Hold time (start condition) t3 650 - - ns Set-up time (start condition) t4 650 - - ns Data set-up time t5 650 - - ns XMSDI,XMSCL rise time t6 100 - - ns XMSDI,XMSCL fall time t7 100 - - ns Set-up time (stop condition) t8 650 - - ns Data hold time t9 650 - - ns Note: test parameters at 2 wire, Fast speed mode www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 17/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor 7.5.3 EEPROM Interface Timing EEPROM Interface Timing Diagram Test Conditions DVDD = 3.3V, DGND =0V, TA=+25oC, unless otherwise stated EEPROM Interface Timing Parameters Parameter Symbol Min Typ Max Units XEESK clock frequency tsk 555 - - KHz XEESK high time tskh 900 - - ns XEESK low time tskl 900 - - ns XEECS setup time tcss 900 - - ns XEEDI setup time tdis 900 - - ns XEECS hold time tcsh 900 - - ns XEEDI hold time tdih 2 - - ns Output delay to “1” tpd1 900 - - ns Output delay to “0” tpd0 30 - - ns XEECS to status valid tsv 30 - - ns XEECS to XEEDO in high impedance tdf 30 - - ns www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 18/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor 7.5.4 EEPROM AC Timing Characteristics Symbol fsk Description SK Clock Frequency Min Max Units 0 0.5 MHz tskh SK High Time 500 ns tskl SK Low Time 500 ns tcss CS Setup Time 100 ns tcsh CS Hold Time 0 ns tdis DI Setup Time 200 ns tdih DI Hold Time 200 ns tpd0 Output Delay to “0” 500 ns tpd1 Output Delay to “1” 500 ns tsv CS to Status Valid 500 ns tdf CS to DO High Impedance 200 ns www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 19/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor 7.5.5 HD Audio-Link Timing Characteristics: Test Conditions DVDD = 3.3V, DGND =0V,TA=+25oC ,unless otherwise stated 1. Link Reset and Initialization Timing Link Reset and Initialization Timing Parameters Parameter RESET#Active Low Pulse Width Symbol Min Typ Max Units Trst 1.0 - - us Tpll 20 - - us Tframe - - 1 FrameTime RESET#Inactive to BCLK Startup delay time for PLL ready SDI Initialization Request time 2. Link Timing Parameters www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 20/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor Link Timing Parameters Parameter Symbol Min Typ Max Units BCLK Frequency - - 24 - MHz BCLK out Period Tcycle - 41.67 - ns - - - 2.0 ns Thigh/Tlow 18.75 - 22.91 ns SDO Setup Time at Rising,Falling Edge of BCLK Tsetup 2.0 - - ns SDO Hold Time at Rising,Falling Edge of BCLK Thold 2.0 - - ns SDI Valid Time after Rising Edge of BCLK Ttco - 7.5 - ns Tflight - 2.0 - ns BCLK Jitter BCLK High,Low Level Width SDI Flight Time www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 21/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor 8. Mechanical Specification 8.1 Package Dimension www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 22/23 OxygenTM Express CM8826 High Performance PCI Express Audio Processor －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] Disclaimer: Information furnished by C-Media Electronics Inc. is believed to be accurate and reliable. However, no responsibility is assumed by C-Media Electronics Inc. for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of C-Media. Trademark and registered trademark are the property of their respective owners. www.cmedia.com.tw Copyright © C-Media Electronics Inc. Rev. 1.0 ︱ Page 23/23