eKA8561A USB Audio Controller Product Specification DOC. VERSION 0.1 ELAN MICROELECTRONICS CORP. April 2006 Trademark Acknowledgments: IBM is a registered trademark and PS/2 is a trademark of IBM. Windows is a trademark of Microsoft Corporation. ELAN and ELAN logo are trademarks of ELAN Microelectronics Corporation. Copyright © 2006 by ELAN Microelectronics Corporation All Rights Reserved Printed in Taiwan The contents of this specification are subject to change without further notice. ELAN Microelectronics assumes no responsibility concerning the accuracy, adequacy, or completeness of this specification. ELAN Microelectronics makes no commitment to update, or to keep current the information and material contained in this specification. Such information and material may change to conform to each confirmed order. In no event shall ELAN Microelectronics be made responsible for any claims attributed to errors, omissions, or other inaccuracies in the information or material contained in this specification. ELAN Microelectronics shall not be liable for direct, indirect, special incidental, or consequential damages arising from the use of such information or material. The software (if any) described in this specification is furnished under a license or nondisclosure agreement, and may be used or copied only in accordance with the terms of such agreement. ELAN Microelectronics products are not intended for use in life support appliances, devices, or systems. Use of ELAN Microelectronics product in such applications is not supported and is prohibited. NO PART OF THIS SPECIFICATION MAY BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY ANY MEANS WITHOUT THE EXPRESSED WRITTEN PERMISSION OF ELAN MICROELECTRONICS. ELAN MICROELECTRONICS CORPORATION Headquarters: Hong Kong: USA: No. 12, Innovation Road 1 Hsinchu Science Park Hsinchu, TAIWAN 30077 Tel: +886 3 563-9977 Fax: +886 3 563-9966 http://www.emc.com.tw Elan (HK) Microelectronics Corporation, Ltd. Elan Information Technology Group (U.S.A.) Rm. 1005B, 10/F Empire Centre 68 Mody Road, Tsimshatsui Kowloon , HONG KONG Tel: +852 2723-3376 Fax: +852 2723-7780 [email protected] 1821 Saratoga Ave., Suite 250 Saratoga, CA 95070 USA Tel: +1 408 366-8225 Fax: +1 408 366-8220 Europe: Shenzhen: Shanghai: Elan Microelectronics Corp. (Europe) Elan Microelectronics Shenzhen, Ltd. Elan Microelectronics Shanghai, Ltd. Siewerdtstrasse 105 8050 Zurich, SWITZERLAND Tel: +41 43 299-4060 Fax: +41 43 299-4079 http://www.elan-europe.com SSMEC Bldg., 3F, Gaoxin S. Ave. Shenzhen Hi-Tech Industrial Park Shenzhen, Guandong, CHINA Tel: +86 755 2601-0565 Fax: +86 755 2601-0500 23/Bldg. #115 Lane 572, Bibo Road Zhangjiang Hi-Tech Park Shanghai, CHINA Tel: +86 21 5080-3866 Fax: +86 21 5080-4600 Contents Contents 1 General Description .................................................................................................. 1 2 Features ..................................................................................................................... 1 3 Applications............................................................................................................... 2 4 Pin Configuration ...................................................................................................... 2 5 Pin Description.......................................................................................................... 3 6 Function Description ................................................................................................ 5 7 Absolute Maximum Rating ....................................................................................... 5 8 Electrical Characteristic ........................................................................................... 6 8.1 DC Electrical Characteristic................................................................................ 6 8.2 Analog Electrical Characteristic.......................................................................... 7 9 Application Circuit .................................................................................................... 8 10 I S Interface Signal.................................................................................................... 9 11 Package.................................................................................................................... 10 2 Product Specification (V0.1) 04.21.2006 • iii Contents Specification Revision History Doc. Version 0.1 iv • Revision Description Initial Preliminary Version Date 2006/04/21 Product Specification (V0.1) 04.21.2006 eKA8561A USB Audio Controller 1 General Description The eKA8561A is a USB digital audio controller with audio data processing that supports 16-bit 2-channel format at 48 kHz sampling rate. The device has an 2 integrated USB transceiver, USB core, DAC, ADC, and I S Input/Output. It can handle a high-level USB protocol, and manages user interface via HID I/O pins. 2 Features USB Specification v1.1 Compliant USB Audio and Human Interface Device (HID) Class v1.1 Compliant Supports 12 Mbits/s Full Speed Serial Data Transmission Supports 48K, 44.1kHz, 32kHz, 8kHz sampling rate Single oscillator: 6MHz Audio buffer size: 192×16 bits × 2 Total of four Endpoints: Endpoint 0 for control transfer , Endpoint 1 for audio streaming out , Endpoint 2 for streaming in , Endpoint 3 for HID Supports stereo/mono playback Built-in 2-channel D/A Converter with 10-bit resolution Built-in 1-channel A/D converter with 10-bit resolution Alternative settings supported by the audio streaming-out interface: ALT-0: (default setting) zero isochronous bandwidth ALT-1: 16-bit PCM 2 channel Alternative settings supported by the audio streaming-in interface: ALT-0: (default setting) zero isochronous bandwidth ALT-1: 16-bit PCM stereo 2 LED direct sink pins with internal serial resistor RC Oscillator with internal RC Total of 3 HID control pins (Mute Speaker, Volume Down, Volume Up) Wake-up pin in HID control pin Package: 48-pin LQFP Product Specification (V0.1) 04.21.2006 (This specification is subject to change without further notice) •1 EKA8561A USB Audio Controller 3 USB Speaker USB Microphone USB Telephone Pin Configuration F_LOUT VDA1 VDA2 F_ROUT NC AGND2 ALC AMPO OPNF MIC_IN VAD VD NC NC NC NC VolDn VolUp Mute RECORD_SEL OSCO OSCI Test PLLC FS_SEL0 FS_SEL1 MCLKE MCLK BCLK LRCLK SDATA I_MCLK I_BCLK I_LRCLK I_SDATA LED 36 35 34 33 32 31 30 29 28 27 26 25 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 NC NC NC NC DGND DM DP VBUS CMP1_IN CMP2_IN VPHY AGND 48 47 46 45 44 43 42 41 40 39 38 37 4 Applications Fig 4-1 48-Pin Configuration of eKA8561A LQFP Type 2• Product Specification (V0.1) 04.21.2006 (This specification is subject to change without further notice) eKA8561A USB Audio Controller 5 Pin Description Symbol Pin No. I/O Function 2 I S Sample Frequency. FS_SEL0 FS_SEL1 1, 2 I Sample Frequency MCLK 00 32kHz 8.192MHz 01 8kHz 2.048MHz 10 44.1kHz 11.2896MHz 11 48kHz 12.288MHz Pull-high resistors are connected to VD. External MCLK enable pin. MCLKE 3 I 0 : use external MCLK and MCLK pin is input pin 1 : use internal MCLK and MCLK pin is output pin A pull-high resistor is connected to VD. MCLK 4 I Crystal oscillator I/O pin BCLK 5 O BCLK for I S interface LRCLK 6 O LRCLK for I S interface SDATA 7 O I S interface for FL, FR output I_MCLK 8 I MCLK input pin I_BCLK 9 I BCLK for I S interface I_LRCLK 10 I LRCLK for I S interface I_SDATA 11 I I S interface for FL, FR input 2 2 2 2 2 2 LED output pin P57 (PlayLED) 12 O Play/Pause: flash LED Stop: LED On LED output pin P56(PowerLED) 13 O Suspend: LED off Power On: LED On LED output pin P55 (RecordLED) 14 O Record: LED On Non-record: LED Off P54, P53 (NC) 15-16 P52 (VolDn) 17 I Volume down control pin P51 (VolUp) 18 I Volume up control pin P50 (Mute) 19 I Mute control pin Record select pin RECORD_SEL 20 I 0 : ADC record 2 1 : I S record A pull-low resistor is connected to DGND Product Specification (V0.1) 04.21.2006 (This specification is subject to change without further notice) •3 EKA8561A USB Audio Controller Symbol Pin No. I/O Function OSCO 21 O Crystal output OSCI 22 I Crystal input Test mode select pin Test 23 I Test =0, enter normal mode Test=1, enter test mode A pull-low resistor is connected to DGND. PLLC 24 I External capacitor for PLL VD 25 PWR 5V digital power supply pin VAD 26 PWR ADC analog power supply pin MIC_IN 27 I Microphone analog input pin OPNF 28 I Non-inverting type amplifier. Normally, a feedback resistor connects from AMPO to OPNF and a gain resistor connects to MIC. AMPO 29 O Gain amplifier output and negative feedback terminal for MIC ALC 30 I Automatic Level Control adjustment pin for MIC AGND2 31 - Analog Ground Pin 2 NC 32 - No connection F_ROUT 33 O Front right channel analog audio output pin VDA2 34 PWR DAC analog power supply Pin 2 VDA1 35 PWR DAC analog power supply Pin 1 F_LOUT 36 O AGND 37 PWR Analog ground pin VPHY 38 PWR Phy and PLL power supply pin CMP2_IN 39 I Comparator 2 Input (FR) CMP1_IN 40 I Comparator 1 Input (MIC) VBUS 41 PWR USB bus power supply pin DP 42 I/O USB plus data line interface DM 43 I/O USB minus data line interface DGND 44 PWR 45-48 - NC 4• Front left channel analog audio output pin Digital ground pin No connection Product Specification (V0.1) 04.21.2006 (This specification is subject to change without further notice) eKA8561A USB Audio Controller 6 Function Description The eKA8561A is a USB Audio Controller that transmits/receives audio data stream to/from the host through its Audio Streaming interface. The Audio Data Format supports 16-bit, 2-channel, and 48kHz PCM. It has three interfaces. Interface 1 supports three sampling frequencies. The sampling rate is changed when “Set Endpoint Control Request” is issued. If user plays other format audio data, the application software transforms it to 48kHz data and then transmit to this device. For Interface 2, this device transmits data at a rate that is locked to frame timing. When user use the recording format (ex. 8kHz) to record speech other than 48kHz stereo format, the application software transforms 48kHz data to 8kHz data. Interface 3 is HID pipe which is used to read button status. The volume and mute control can be activated via host (audio device class requests) or via I/O pins (HID plus audio device class requests). When this function is activated via host, the host manages the audio PCM data directly. The eKA8561A device just playback the audio data. Otherwise, when it is activated via I/O pins, the eKA8561A sends the controlled feature (Volume, Mute) message through HID pipe and signals the host to manage the audio PCM data directly. 7 Absolute Maximum Rating Symbol Min Max Unit 0 70 ºC Storage temperature -65 150 ºC Input voltage -0.5 6.0 V Output voltage -0.5 6.0 V Temperature under bias Product Specification (V0.1) 04.21.2006 (This specification is subject to change without further notice) •5 EKA8561A USB Audio Controller 8 Electrical Characteristic 8.1 DC Electrical Characteristic Ta=0°C~70°C, VBus=5V, DGND=0V Symbol 2 Parameter Condition VIN = VBus, DGND Min Typ Max Unit - - ±1 µA IL Input Leakage Current VIH Input High Voltage - 2.0 - - V VIL Input Low Voltage - - - 0.8 V VIHX Clock Input High Voltage OSCI 2.5 - - V VILX Clock Input Low Voltage OSCI - - 1.0 V VOH Output High Voltage 2 (I S Interface Pin) IOH = -10.0mA 2.4 - - V VOL1 Output Low Voltage 2 (I S Interface Pin) IOL = 10.0mA - - 0.4 V Output Low Voltage IOL = 10.0mA (LED driver ) VBus = 5V -10% 1.3 +10% V IPH Pull-high Current (Input and Sel_Vref pin) Pull-high active, input pin at DGND (PH resistor = 25 KΩ) -20% -125 +20% µA IPL Pull-low Current (Test pin) Test pin at VBus (PL resistor = 25 KΩ) -20% 125 +20% µA ISB1 Power Down Current All input and I/O pin at VBus, Output pin floating, WDT disabled - - 50 µA ISB2 Power Down Current All input and I/O pin at VBus, Output pin floating, WDT enabled - - 100 µA ICC Operating Supply Current Fosc= 6.0 MHz , output pin floating - - 10 mA VOL2 6• Product Specification (V0.1) 04.21.2006 (This specification is subject to change without further notice) eKA8561A USB Audio Controller 8.2 Analog Electrical Characteristic Parameter Condition Min Typ Max Unit ADC Resolution - - 10 - Bits ADC Sampling Frequency - - 48 - kHz Internal High Reference Voltage for ADC - - 2.55 - V Internal Low Reference Voltage for ADC - - 0.75 - V - 19.5 20 20.5 dB Voltage Amplifier Gain - 49 50 51 dB Output Voltage Swing - - 1.6 Output Voltage - 0.85 - 2.45 V MIC input = 7.5mV -40 - - dBm - 36 40 44 dB Pass-Band Ripple - - - 0.5 dB Pass-Band Cutoff Frequency - - 4 - kHz Stop-Band Attenuation @ 24kHz - 70 - - dB Stop-Band Attenuation @ 48kHz - 90 - - dB DAC Resolution - - 10 - Bits DAC Sampling Frequency - - 48 - kHz Reference Voltage (Vref) - 1.45 1.65 1.85 V Minimum Analog Output Voltage - 0.99 1.04 1.09 V Maximum Analog Output Voltage - 2.15 2.26 2.37 V VDA=3.3V -5% 1.2 +5% V Analog Output Impedance at Each Output Pin - - - 200 Ω Analog Output Capacitance at Each Output Pin - - - 20 pF External Load Impedance - - 32 - Ω Volume Control Step - - 16 - Step ADC Pre-Amplifier Spec. Pre-Amplifier Voltage Gain Gain Amplifier Spec. Vp-p ALC Circuit Spec. ALC Detection Level ALC Operating Range LPF Spec DAC Full Scale Voltage Range Product Specification (V0.1) 04.21.2006 (This specification is subject to change without further notice) •7 EKA8561A USB Audio Controller 9 Application Circuit Fig 9-1 eKA8561A 48-pin, Audio Circuit 8• Product Specification (V0.1) 04.21.2006 (This specification is subject to change without further notice) eKA8561A USB Audio Controller 2 10 I S Interface Signal LRCLK Left Channel 0 Right Channel 31 0 31 BCLK SDATA MSB -1 -2 -3 +3 +2 +1 LSB MSB -1 -2 -3 +3 +2 +1 LSB Fig 10-1 I 2S Justified Audio Stream Format LRCLK Right Channel Left Channel 0 31 0 31 BCLK SDATA MSB -1 -2 -3 +3 +2 +1 LSB MSB -1 -2 -3 +3 +2 +1 LSB Fig 10-2 Left Justified Audio Stream Format LRCLK Right Channel Left Channel 0 31 0 31 BCLK SDATA MSB -1 -2 -3 +3 +2 +1 LSB MSB -1 -2 -3 +3 +2 +1 LSB Fig 10-3 Right Justified Audio Stream Format The LRCLK and BCLK are derived from MCLK. The frequency ratio is MCLK: LRCLK: BCLK = 256: 1: 64 The frequency of LRCLK equals the sampling rate of 48kHz, 44.1kHz, 32kHz or 8kHz based on FS_SEL0 and FS_SEL1 pins status. Product Specification (V0.1) 04.21.2006 (This specification is subject to change without further notice) •9 EKA8561A USB Audio Controller 11 Package 10 • Product Specification (V0.1) 04.21.2006 (This specification is subject to change without further notice)