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EKA8564A
USB Audio Controller
Product Specification
DOC. VERSION 0.1
ELAN MICROELECTRONICS CORP.
September 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 (c) 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: 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 Hong Kong: Elan (HK) Microelectronics Corporation, Ltd. Flat A, 19F., World Tech Centre 95 How Ming Street, Kwun Tong Kowloon, HONG KONG Tel: +852 2723-3376 Fax: +852 2723-7780 elanhk@emc.com.hk Shenzhen: Elan Microelectronics Shenzhen, Ltd. SSMEC Bldg., 3F, Gaoxin S. Ave. Shenzhen Hi-Tech Industrial Park Shenzhen, Guandong, CHINA Tel: +86 755 2601-0565 Fax: +86 755 2601-0500 USA: Elan Information Technology Group (USA) 1821 Saratoga Ave., Suite 250 Saratoga, CA 95070 USA Tel: +1 408 366-8225 Fax: +1 408 366-8220
Europe: Elan Microelectronics Corp. (Europe) Siewerdtstrasse 105 8050 Zurich, SWITZERLAND Tel: +41 43 299-4060 Fax: +41 43 299-4079 http://www.elan-europe.com
Shanghai: Elan Microelectronics Shanghai, Ltd. 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 2 3 4 5 6 7 8 9 General Description.....................................................................................................1 Features ........................................................................................................................1 Applications..................................................................................................................2 Block Diagram..............................................................................................................2 Pin Configuration.........................................................................................................3 Pin Assignment ............................................................................................................4 Function Description...................................................................................................6 Absolute Maximum Rating .........................................................................................6 Electrical Characteristic..............................................................................................7 9.1 10 11 12 DC Electrical Characteristic ................................................................................. 7 9.2 Analog Electrical Characteristic........................................................................... 8 Application Circuit .......................................................................................................9 2 I S Interface Signal ....................................................................................................10 Package.......................................................................................................................11
Product Specification (V0.1) 09.08.2006
* iii
Contents
Specification Revision History
Doc. Version 0.1 Revision Description Initial Preliminary Version Date 2006/09/08
iv *
Product Specification (V0.1) 09.08.2006
EKA8564A
USB Audio Controller
1
General Description
The EKA8564A is a USB digital audio controller with audio data processing that supports 16-bit 2-channel format at 48kHz, 44.1kHz, 32kHz or 8kHz sampling rate. 2 The device has an integrated USB transceiver, USB core, MCU, 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 48kHz, 44.1kHz, 32kHz, 8kHz sampling rate Single oscillator: 6MHz Audio buffer size: 192x16 bits x 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 2Kx13 on-chip program ROM 32 bytes of general purpose RAM (R20~R3F) RC Oscillator with internal RC 5 level stack for subroutine nesting Total of 8 HID control pins (Mute Speaker, Volume Down, Volume Up, Mute REC, Play/Pause, Stop, Scan next track, Scan previous track) Total of 4 LED output pins (REC Mute LED, Power LED, Play LED, SPK Mute LED) MCU run at 6 MHz frequency Package: 48-pin LQFP
Product Specification (V0.1) 09.08.2006
(This specification is subject to change without further notice)
*1
EKA8564A
USB Audio Controller
3
Applications
USB Speaker USB Microphone USB Telephone
4
Block Diagram
USB Bus
Transceiver
48MHz UDC PLL
6MHz
Arbiter
Audio RAM
Memory Manage Unit
MCU
To Speaker DAC
From Microphone ADC AMP
2*
Product Specification (V0.1) 09.08.2006
(This specification is subject to change without further notice)
EKA8564A
USB Audio Controller
5
Pin Configuration
FS_SEL1
FS_SEL0
48 BCLK LRCLK SDATA I_BCLK I_LRCLK I_SDATA PLAY_LED POWER_LED REC_MUTE_LED SPK_MUTE_LED MuteREC Vol1 2 3 4 5 6 7 8 9 10 11 12 13 Vol+
47
46
45
44
43
42
41
40
AGND1 38
39
37 36 35 34 33 32 VDA1 VDA2 F_ROUT ALC AMPO OPNF AGND2 VREF MIC_IN VMIC VA AGND3
EKA8564A LQFP-48
F_LOUT 31 30 29 28 27 26 25 24 VAD
MCLKE
MCLK
DGND1
DGND2
DM
14 MuteSPK
15 SPT
16 SNT
17 STOP
18 PlayPause
19 RECORD_SEL
DP
20 OSCO
21 OSCI
22 TEST
VBUS
VPHY
23 PLLC
Fig 5-1 48-Pin Configuration of EKA8564A LQFP Type
Product Specification (V0.1) 09.08.2006
(This specification is subject to change without further notice)
*3
EKA8564A
USB Audio Controller
6
Pin Assignment
Symbol BCLK LRCLK SDATA I_BCLK I_LRCLK I_SDATA Play_LED Power_LED REC_Mute_LED SPK_Mute_LED MuteREC VolVol+ MuteSPK SPT SNT Stop PlayPause Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 I/O O O O I I I O O O O I I I I I I I I BCLK for I S interface LRCLK for I S interface I S interface for FL, FR output BCLK for I S interface LRCLK for I S interface I S interface for FL, FR input Play LED Power LED Record Mute LED Speaker Mute LED Mute record button Volume down button Volume up button Mute Speaker button Media Key: Scan previous track button Media Key: Scan next track button Media Key: Stop button Media Key: Play/Pause button Record select pin. RECORD_SEL 19 I 1 : I S record 0 : ADC record An internal pull-low resistor is connected to DGND. OSCO OSCI 20 21 O I Crystal output Crystal input Test mode select pin Test 22 I Test = 0, enter normal mode Test = 1, enter test mode An internal pull-low resistor is connected to DGND. PLLC VAD AGND3 VA VMIC MIC_IN Vref AGND2 23 24 25 26 27 28 29 30 I PWR - PWR O I O - External capacitor for PLL ADC analog power supply pin A/D and PLL ground pin Analog power supply pin Power supply for external MIC Microphone analog input pin Bandgap reference output MIC ground pin
2 2 2 2 2 2 2
Function
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Product Specification (V0.1) 09.08.2006
(This specification is subject to change without further notice)
EKA8564A
USB Audio Controller
Symbol OPNF AMPO ALC F_ROUT VDA2 VDA1 F_LOUT AGND1 VBUS VPHY DGND2 DP DM DGND1
Pin No. 31 32 33 34 35 36 37 38 39 40 41 42 43 44
I/O I O I O PWR PWR O PWR PWR PWR - I/O I/O PWR
Function Non-inverting type amplifier. Normally, a feedback resistor connects from AMPO to OPNF and a gain resistor connects to MIC. Gain amplifier output and negative feedback terminal for MIC Automatic Level Control adjustment pin for MIC Front right channel analog audio output pin DAC analog power supply Pin 2 DAC analog power supply Pin 1 Front left channel analog audio output pin 2-channel D/A ground pin USB bus power supply pin PHY and PLL power supply pin PHY ground pin USB plus data line interface USB minus data line interface Digital ground pin I S's Sample Frequency Sample Frequency 00 32kHz 8kHz 44.1kHz 48kHz MCLK 8.192 MHz 2.048 MHz 11.2896 MHz 12.288 MHz
2
FS_SEL0 FS_SEL1
45,46
I
01 10 11
Internal pull-high resistors are connected to VD. External MCLK enable pin. MCLKE 47 I 0 : use external MCLK and MCLK pin is input pin 1 : use internal MCLK and MCLK pin is output pin An internal pull-high resistor is connected to VD. MCLK 48 I/O Crystal oscillator I/O pin
Product Specification (V0.1) 09.08.2006
(This specification is subject to change without further notice)
*5
EKA8564A
USB Audio Controller
7
Function Description
The EKA8564A 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, 44.1kHz, 32kHz, 8kHz PCM. It has three interfaces. Interface 1 supports four sampling frequencies. The sampling rate is changed by FS_SEL0 and FS_SEL1. For Interface 2, this device transmits data at a rate that is locked to frame timing. When user uses the recording format (ex. 8kHz) to record speech other than 48kHz stereo format, the application software will transform 48kHz data to 8kHz data. Interface 3 is HID pipe which is used to read button status.
8
Absolute Maximum Rating
Symbol Temperature under bias Storage temperature Input voltage Output voltage Min 0 -65 -0.5 -0.5 Max 70 150 6.0 6.0 Unit C C V V
6*
Product Specification (V0.1) 09.08.2006
(This specification is subject to change without further notice)
EKA8564A
USB Audio Controller
9
Electrical Characteristic
9.1 DC Electrical Characteristic
Ta=0C~70C, VBus=5V, DGND=0V
Symbol IIL VIH VIL VIHX VILX VOH1 VOH2 VOL1 VOL2 VOL3 IPH IPL ISB1 ISB2 ICC
Parameter Input Leakage Current Input High Voltage Input Low Voltage Clock Input High Voltage Clock Input Low Voltage Output High Voltage (Port 5, Port 6) Output High Voltage 2 (I S Interface Pin) Output Low Voltage (Port 5, Port 6) (P5 : Normal Mode) Output Low Voltage (P5 : LED driver Mode) Output Low Voltage 2 (I S Interface Pin) Pull-high Current (Port 5 and Sel_Vref pin) Pull-low Current (Test pin) Power Down Current Power Down Current Operating Supply Current OSCI OSCI
Condition VIN = VBus, DGND - -
Min - 2.0
Typ - - - - - - - - 1.3 - -125 125 - - -
Max 1 - 2.0 - 1.0 -
Unit A V V V V V V
2.5 - 2.4 2.4 - -10% -
IOH = -10.0mA IOH = -6.67mA IOL = 10.0mA IOL = 10.0mA VBus = 5 V IOL = 6.67mA
0.4 +10% 0.4 +20% +20% 50 100 10
V V V A A A A mA
Pull-high active, input pin at DGND -20% (PH resistor = 25 K) Test pin at VBus (PL resistor = 25 K) All input and I/O pin at VBus, output pin floating, WDT disabled All input and I/O pin at VBus, output pin floating, WDT enabled Fosc= 6.0 MHz , output pin floating -20% - - -
Product Specification (V0.1) 09.08.2006
(This specification is subject to change without further notice)
*7
EKA8564A
USB Audio Controller
9.2 Analog Electrical Characteristic
Parameter ADC ADC Resolution ADC Sampling Frequency Internal High Reference Voltage for ADC Internal Low Reference Voltage for ADC Pre-Amplifier Spec. Pre-Amplifier Voltage Gain Gain Amplifier Spec. Voltage Amplifier Gain Output Voltage Swing Output Voltage ALC Circuit Spec. ALC Detection Level ALC Operating Range LPF Spec Pass-Band Ripple Pass-Band Cutoff Frequency Stop-Band Attenuation @ 24kHz Stop-Band Attenuation @ 48kHz DAC DAC Resolution DAC Sampling Frequency Reference Voltage (Vref) Minimum Analog Output Voltage Maximum Analog Output Voltage Full Scale Voltage Range Analog Output Impedance at Each Output Pin Analog Output Capacitance at Each Output Pin External Load Impedance Volume Control Step - - - - - VDA=3.3V - - - - - - 1.45 0.45 2.45 -5% - - - - 10 48 1.65 0.65 2.65 2.0 - - 32 16 - - 1.85 0.85 2.85 +5% 200 20 - - Bits kHz V V V V pF Step - - - - - - 70 90 - 4 - - 0.5 - - - dB kHz dB dB MIC input = 7.5mV - -40 36 - 40 44 dBm dB - - - 49 - 0.85 50 1.6 - 51 - 2.45 dB Vp-p V - 19.5 20 20.5 dB - - - - - - - - 10 48 2.55 0.75 - - - - Bits kHz V V Condition Min Typ Max Unit
8*
Product Specification (V0.1) 09.08.2006
(This specification is subject to change without further notice)
EKA8564A
USB Audio Controller
10 Application Circuit
Fig 10-1 EKA8564A 48-pin Application Circuit Product Specification (V0.1) 09.08.2006
(This specification is subject to change without further notice)
*9
EKA8564A
USB Audio Controller
11 I2S Interface Signal
LRCLK
0
Left Channel
31 0
Right Channel
31
BCLK
SDA TA
MSB -1
-2
-3
+3 +2 +1 LSB
MSB -1
-2
-3
+3 +2 +1 LSB
Fig 11-1 I S Justified Audio Stream Format
2
LRCLK
0
Left Channel
31 0
Right Channel
31
BCLK
SDA TA
MSB -1
-2
-3
+3 +2 +1 LSB
MSB -1
-2
-3
+3 +2 +1 LSB
Fig 11-2 Left Justified Audio Stream Format
LRCLK
0
Left Channel
31 0
Right Channel
31
BCLK
SDA TA
MSB -1
-2
-3
+3 +2 +1 LSB
MSB -1
-2
-3
+3 +2 +1 LSB
Fig 11-3 Right Justified Audio Stream Format
The LRCLK and BCLK are derived from MCLK. The frequency ratio MCLK : LRCLK:BCLK = 256: 1 : 64. The frequency of LRCLK equals the sampling rate 48kHz, 44.1kHz, 32kHz or 8kHz based on FS_SEL0 and FS_SEL1 pins status.
10 *
Product Specification (V0.1) 09.08.2006
(This specification is subject to change without further notice)
EKA8564A
USB Audio Controller
12 Package
Product Specification (V0.1) 09.08.2006
(This specification is subject to change without further notice)
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EKA8564A
USB Audio Controller
12 *
Product Specification (V0.1) 09.08.2006
(This specification is subject to change without further notice)

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