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CRD4201-1
CrystalClearTM AC '97 Six Channel CNR Audio Reference Design
Features
l Six
Description
The CRD4201-1 CNR reference design features six channel analog audio outputs and a optical S/PDIF digital output. This board uses the CS4201 audio codec which has several advanced features such as a built-in headphone amplifier, up to 30 dB of microphone boost, and serial digital audio outputs. The CRD4201-1 reference design is available by ordering the CMK4201-1 manufacturing kit. This kit includes a full set of schematic design files (OrCAD(R) 7.2 format), PCB job files (PADS(R) ASCII), PCB artwork files, and bill of materials. This reference design offers significant cost savings over competing solutions and can be easily modified to meet your specific design goals.
Channel Analog Audio Output l Built-in Headphone Amplifier l CS4201 audio codec and CS4334 DACs l 20-bit D to A conversion (DAC) l 18-bit A to D conversion (ADC) l S/PDIF (IEC-958) optical digital output l Complete suite of Analog I/O connections:
- Line, Mic, CD, Video and Aux Inputs - Line Front, and Line Rear Outputs
l Joystick/MIDI
Interface l 2-layer low cost PC board l Meets Intel (R) AC `97 version 2.1 specification l Exceeds Microsoft's(R) PC 99 audio performance requirements.
ORDERING INFO CMK4201-1 (Manufacturing Kit)
MIC IN AUX IN VIDEO IN CD IN INT MODEM LINE IN LINE OUT HEADPH OUT SURR OUT CNT/LFE OUT
Cirrus Logic CRD4201-1
CS4201
S/PDIF OUT
Preliminary Product Information
P.O. Box 17847, Austin, Texas 78760 (512) 445 7222 FAX: (512) 445 7581 http://www.cirrus.com
This document contains information for a new product. Cirrus Logic reserves the right to modify this product without notice.
Copyright (c) Cirrus Logic, Inc. 2000 (All Rights Reserved)
AUG `00 DS483RD1A1 1
CRD4201-1
TABLE OF CONTENTS
1. GENERAL INFORMATION ..........................................................................................3 2. SCHEMATIC DESCRIPTION .......................................................................................3 2.1 CS4201 Audio Codec ...........................................................................................3 2.2 Analog Inputs .......................................................................................................3 2.3 Rear Channel and Surround Outputs ...................................................................4 2.4 Front Channel and Headphone Outputs .............................................................4 2.5 S/PDIF Optical Output .........................................................................................4 2.6 CNR Connector and EEPROM ............................................................................4 2.7 Component Selection ...........................................................................................4 2.8 EMI Components ..................................................................................................5 3. GROUNDING AND LAYOUT .......................................................................................5 3.1 Partitioned Voltage and Ground Planes ...............................................................5 3.2 CS4201 Layout Notes ..........................................................................................5 4. REFERENCES .............................................................................................................6 4.1 ADDENDUM .........................................................................................................6 5. BILL OF MATERIALS ................................................................................................19
LIST OF FIGURES
Figure 1. Block Diagram ....................................................................................................7 Figure 2. CS4201 Audio Codec .........................................................................................8 Figure 3. Analog Inputs ......................................................................................................9 Figure 4. Rear Channel and Surround Outputs ...............................................................10 Figure 5. Front Channel and Headphone Outputs ..........................................................11 Figure 6. S/PDIF Optical Output ......................................................................................12 Figure 7. CNR Connector ................................................................................................13 Figure 8. PCB Layout: Top Assembly Drawing ................................................................14 Figure 9. PCB Layout: Top Layer ....................................................................................15 Figure 10. PCB Layout: Bottom Layer .............................................................................16 Figure 11. PCB Layout: Bottom Assembly ......................................................................17 Figure 12. PCB Layout: Top Silkscreen ..........................................................................18
Contacting Cirrus Logic Support
For a complete listing of Direct Sales, Distributor, and Sales Representative contacts, visit the Cirrus Logic web site at: http://www.cirrus.com/corporate/contacts/
Microsoft , Windows 95, Windows 98 and Windows Millennium and WHQL is registered trademark of Microsoft. CrystalClear is a trademark of Cirrus Logic, Inc. Intel is a registered trademark of Intel Corporation. OrCAD is a registered trademark of OrCAD, Inc. PADS is a registered trademark of, PADS Software, Inc. Preliminary product information describes products which are in production, but for which full characterization data is not yet available. Advance product information describes products which are in development and subject to development changes. Cirrus Logic, Inc. has made best efforts to ensure that the information contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided "AS IS" without warranty of any kind (express or implied). No responsibility is assumed by Cirrus Logic, Inc. for the use of this information, nor for infringements of patents or other rights of third parties. This document is the property of Cirrus Logic, Inc. and implies no license under patents, copyrights, trademarks, or trade secrets. No part of this publication may be copied, reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photographic, or otherwise) without the prior written consent of Cirrus Logic, Inc. Items from any Cirrus Logic website or disk may be printed for use by the user. However, no part of the printout or electronic files may be copied, reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photographic, or otherwise) without the prior written consent of Cirrus Logic, Inc.Furthermore, no part of this publication may be used as a basis for manufacture or sale of any items without the prior written consent of Cirrus Logic, Inc. The names of products of Cirrus Logic, Inc. or other vendors and suppliers appearing in this document may be trademarks or service marks of their respective owners which may be registered in some jurisdictions. A list of Cirrus Logic, Inc. trademarks and service marks can be found at http://www.cirrus.com.
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1. GENERAL INFORMATION
The CRD4201-1 reference design is a CNR card that features six channel CD quality analog audio outputs. The card includes a CS4201 AC '97 audio codec and two CS4334 24-bit serial stereo DACs. This combination gives the CRD4201-1 a rich feature set and industry leading audio performance. The CS4201 audio codec has a stereo 20-bit DAC, a stereo 18-bit ADC and a very flexible analog audio mixer. The serial data outputs are paired with two CS4334 DACs to provide four additional channels of analog audio. The CS4201 also features three stereo pairs of line level analog inputs, a microphone input, and a stereo pseudo-differential CD input. The input signals can be routed to the ADC for recording or mixed together for recording and direct playback. The CS4201 has internal registers that are used to control its various features such as volume levels, audio muting, and signal routing. The CS4201 maintains high audio quality and exceeds the Microsoft(R) PC-99 audio performance specification. The CS4201 audio codec communicates to the audio controller across the CNR interface through the AC-Link. The AC-Link is a 5-wire serial digital interface that transfers digital audio between the two devices and also sends commands from the audio controller to the CS4201's registers. For more information on the AC-Link, see the Intel(R) AC'97 version 2.1 specification. shown in Figure 5. AFLT1 and AFLT2 (pins 29, 30) require 1000 pF NPO/COG capacitors connected to analog ground. These capacitors provide a single pole lowpass filter at the inputs of the ADC. No other input filtering is required. FLT3D, FLTI, and FLTO (pins 32, 33, 34) form the internal analog 3D enhancement filter. The FLT3D pin requires a 0.01 F capacitor to analog ground. The FLT0 and FLT1 pins require a NPO/COG 1000 pF series capacitor. The AC-Link may require series termination resistors to prevent reflections. These are normally placed as close as possible to the transmitting end of a particular AC-Link signal. Both SDATA_IN (pin 8) and BIT_CLK (pin 6) are outputs of the CS4201 and each have a 47 series termination resistor. The CS4201 is powered by separate analog and digital power supplies, each with their own respective grounds. The AGND symbols refer to analog ground, and DGND symbols refer to digital ground. Each power pin needs separate decoupling capacitors. The CS4201 audio codec uses a 0.1 uF ceramic capacitor for each of the 3.3 V digital and 5 V analog supply pins. These decoupling capacitors are placed as close as possible to their respective pins.
2.2
Analog Inputs
2. SCHEMATIC DESCRIPTION
The block diagram in Figure 1 illustrates the interconnections between the various schematic pages found at the end of this document. Sections 2.1 through 2.8 describe the circuitry contained in these schematics.
The LINE_IN, VIDEO, and AUX_IN stereo input jacks in Figure 3 are connected to a 6 dB voltage divider and AC coupled to the CS4201. The voltage divider allows input signal levels of up to 2 Vrms. The 2.2 F AC coupling capacitor values are used to minimize low frequency roll-off. The microphone circuit is AC coupled and also provide bandpass filtering on the incoming microphone signal. This bandpass filter was designed for a 3 dB rolloff at 60 Hz and 15 kHz. The microphone circuit provides low voltage phantom power for electret microphones. Phantom power is de3
2.1
CS4201 Audio Codec
The CS4201 audio codec is shown in Figure 2. The input signals to the CS4201 originate from the analog inputs in Figure 3, and the analog outputs are
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rived from the +5 V analog supply and provides a maximum of 4.2 V under no load and a minimum of 2.0 V under a 0.8 mA load. These parameters are required by PC-99. The CS4201 features a pseudo-differential CD input that minimizes common mode noise and interference. Each CD signals acts as one side of the differential input and CD_COM acts as the other side. CD_COM is used as the common return path for both the left and right channels. For good common mode rejection performance, the voltage divider resistors for CD_COM are half the value of those for CD L and R inputs.
2.5
S/PDIF Optical Output
The S/PDIF (IEC-958) digital output shown in Figure 6, is compatible with digital outputs on consumer devices such as Mini Disk recorders and consumer stereo receivers. The S/PDIF output operates at a fixed sampling frequency of 48 KHz. It uses an industry standard TOSLINK digital optical transmitter, the Toshiba TOTX-173.
2.6
CNR Connector and EEPROM
2.3
Rear Channel and Surround Outputs
The outputs in Figure 4 drive the rear speakers (surround), center speaker (CNT), and sub-woofer (LFE) in a six channel audio application. These four outputs are driven digitally from the CS4201 through two serial output ports and converted to analog audio through two high-performance CS4334 24-bit stereo DACs.
2.4
Front Channel and Headphone Outputs
The Communications and Network Riser interface (CNR) is shown in Figure 7. CNR is a motherboard interface that supports audio, modem and LAN subsystems. CNR applications are targeted at OEMs, system manufacturers, and system integrators who wish take advantage of physically separating their audio, modem or LAN circuitry from the PC motherboard. CNR accomplishes this with out the additional cost associated with the interface circuitry required for a PCI bus add-in card. Manufacturers of aftermarket add-in cards should still use the PCI bus. For that application, Cirrus Logic offers the CRD4630-10 six channel PCI add-in card reference design (order information: CMK4630-10). The CRD4201-1 uses the AC-Link, SMBus and power. The SMBus is used to provide Plug-andPlay functionality for the CNR card. The SMBus signals are connected to a AT24C02 EEPROM. The EEPROM holds the Subsystem Vendor ID and Subsystem ID. It also contains other information for implementing a plug-and-play CNR card. For CNR design specifications, programming utilities, and information on programming the EEPROM see the Intel(R) Communication and Network Riser (CNR) homepage at http://developer.intel.com/technology/cnr/.
Figure 5 details the Headphone Output and Line Output circuits. The Line Outputs are the main analog outputs in a two channel system or the Front Outputs in a six channel audio system. The Line Outputs of the CS4201 (pins 35 and 36) are buffered by a Motorola MC34072 dual opamp. The MC34072 is a high performance low noise op-amp well suited for audio applications. Line Out is designed to drive high impedance loads of 10 K or higher. The CS4201 has a built in headphone amplifier on pins 39 and 41. These outputs are capable of driving headphones with impedances as low as 32 . The headphone outputs are AC coupled through 220 F capacitors. These large capacitor values create excellent low frequency response even under 32 loads.
4
2.7
Component Selection
Great attention was given to the particular components used on the CRD4201-1 board with cost, performance, and package selection as the most
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important factors. Listed are some of the guidelines used in the selection of components: * * No components smaller than 0805 SMT package. Only single package passive components. No resistor packs. This reduces the risk of crosstalk between analog audio signals. All components except connectors, jumpers and the 24.576 MHz crystal are in surface mount packages. Dual footprints are used for the 24.576 MHz crystal. The CS4201 audio codec is placed at the transition point between the analog and digital ground planes. The pins are arranged on the CS4201 so that the analog and digital signals are separated from each other. The analog and digital ground planes must be tied together for the CS4201 to maintain proper voltage references. For best results, the two ground planes are tied together with a single 50 mil trace under the CS4201 near its digital ground pins. Data converters are generally susceptible to noise on the crystal pins. In order reduce noise from coupling onto these pins, the area around the 24.576 MHz crystal and its signal traces is filled with copper on the top and bottom of the PCB and attached to digital ground. A separate chassis ground provides a noise-free reference point for all of the EMI suppression components. The chassis ground plane is connected to the analog ground plane at the external jacks.
*
*
2.8
EMI Components
Optional capacitors and inductors are included to help the board meet EMI compliance tests, such as FCC Part 15. Choose these component values according to individual requirements.
3. GROUNDING AND LAYOUT
The component layout and signal routing of the CRD4201-1 provides a good model for laying out your own CNR add-in card.
3.2
CS4201 Layout Notes
3.1
Partitioned Voltage and Ground Planes
Refer to the CS4201 Data Sheet for analog and digital partitioning guidelines and bypass capacitors placement. Pay special attention to the bypass capacitors on REFFLT, AFLT1, AFLT2 and the power supply capacitors.
It is critical for good audio performance to separate digital and analog sections to prevent digital noise from effecting the performance of the analog circuits. The analog section of the CRD4201-1 is completely isolated from the digital section with a 100 mil partition. Partitioning is defined as the absence of copper on all signal layers. The analog and digital sections each have their own separate ground planes. All analog components, power traces, and signal traces are routed over the analog ground plane. Digital components, power traces and signal traces are not allowed to crossover into the analog section.
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5
CRD4201-1
4. REFERENCES
1) Intel(R), Audio Codec `97 Component Specification, Revision 2.1, May 22, 1998. http://developer.intel.com/ 2) Intel(R), CNR Specification 1.0 http://developer.intel.com/technology/cnr/index.htm 3) Cirrus Logic, CS4201 Audio Codec `97 Data Sheet http://www.cirrus.com/products 4) Steve Harris, Clif Sanchez, Personal Computer Audio Quality Measurements, Ver 1.0 http://www.cirrus.com/pubs/meas100.pdf 5) Microsoft, PC Design Guidelines, http://www.microsoft.com/hwdev/desguid/ 6) M. Montrose. Printed Circuit Board Design Techniques for EMC Compliance, IEEE Press, New York: 1996.
4.1
* * *
ADDENDUM
Schematic drawings Layout drawings Bill of materials
6
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ANALOG_IN
LINE_INL LINE_INR CD_INL CD_INR CD_COM VIDEO_INL VIDEO_INR AUX_INL AUX_INR MIC_IN PHONE_IN MONO_OUT PC_BEEP
CS4201
LINE_IN_L LINE_IN_R CD_INL CD_INR CD_COM VIDEO_L VIDEO_R AUX_INL AUX_INR MIC1 PHONE_IN MONO_OUT PC_BEEP PRIMARY_DN# LINE_OUT_L LINE_OUT_R Vrefout HP_OUT_L HP_OUT_R HP_OUT_C
ANALOG_OUT
LINE_OUTL LINE_OUTR Vref HP_OUT_L HP_OUT_R HP_OUT_C
ANALOG_OUT
SPDO/SDO2
SERIAL PORT
SDOUT SCLK LRCLK SDATA_1 SCLK LRCLK
ASDIN ASDOUT ASYNC ABITCLK
ARST#
ANALOG_IN
CS4201
SDATA_2 MCLK
SERIAL PORT CNR_BUS SPDIF_OUT
PRIM_DN#
ARST#
ASDIN ASDOUT ASYNC ABITCLK
SPDIF_TX
CNR_BUS
SPDIF_OUT
Figure 1. Block Diagram
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7
LINE_OUT_L
LINE_OUT_R
MONO_OUT
8
+3.3VD +5VA +3.3VD +5VA 25 38 1 9 12 13 14 15 16 17 18 19 20 21 22 23 24 28 27 29 30 32 33 34 C10 1000pF NPO 2 3 U1 AVdd1 AVdd2 DVdd1 DVdd2 PC_BEEP PHONE AUX_L AUX_R VIDEO_L VIDEO_R CD_L CD_GND CD_R MIC1 MIC2 LINE_IN_L LINE_IN_R Vrefout REFFLT AFLT1 AFLT2 FLT3D FLTI FLTO XTL_IN XTL_OUT CS4201 AVss1 AVss2 DVss1 DVss2 BIT_CLK SDATA_OUT SDATA_IN SYNC RESET# LINE_OUT_L LINE_OUT_R HP_OUT_L HP_OUT_R MONO_OUT SPDO/SDO2 EAPD/SCLK ID0# ID1# HPCFG HP_OUT_C GPIO0/LRCLK GPIO1/SDOUT 26 42 4 7 DGND 6 5 8 10 11 35 36 39 41 37 48 47 45 46 31 40 43 44 R1 R2 47 47 ABITCLK ASDOUT ASDIN ASYNC ARST# LINE_OUT_L LINE_OUT_R HP_OUT_L HP_OUT_R MONO_OUT SPDO/SDO2 SCLK PRIMARY_DN# AGND C1 0.1uF Z5U C2 0.1uF Z5U C3 0.1uF Z5U C4 0.1uF Z5U DGND AGND PC_BEEP PHONE_IN AUX_INL AUX_INR VIDEO_L VIDEO_R CD_INL CD_COM CD_INR MIC1 LINE_IN_L LINE_IN_R Vrefout C5 2.2uF Y5V C6 0.1uF X7R C7 1000pF NPO C8 1000pF NPO C9 0.01uF X7R HP_OUT_C LRCLK SDOUT AGND Y1 C11 1000pF NPO C12 1000pF NPO C13 1000pF NPO 24.576 MHz C14 22pF NPO C15 22pF NPO
CRD4201-1
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AGND
DGND
DGND
Figure 2. CS4201 Audio Codec
AGND
AGND
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CD IN
L1 J2 4 3 2 1 4X1HDR-AU 31@100MHz AGND R9 3.4K 31@100MHz AGND R5 6.8K R3 6.8K C16 2.2uF ELEC + CD_INR
LINE IN
J1 4 3 5 2 1 PHONO-1/8 C19 100pF NPO C20 100pF NPO AGND R4 6.8K C17 2.2uF ELEC + LINE_INR R6 AGND 6.8K
L2
R7
3.4K
C18
4.7uF ELEC +
CD_COM
R8
6.8K
C21
2.2uF ELEC +
Connect CGND to AGND at the jack
C22 2.2uF ELEC + CD_INL AGND CGND
LINE_INL
R10
6.8K
L3
R11
6.8K
31@100MHz AGND
R12
6.8K
VIDEO IN
L4 J4 4 3 2 1 4X1HDR-AU 31@100MHz AGND R19 6.8K 31@100MHz AGND R16 6.8K R13 6.8K C23 2.2uF ELEC + VIDEO_INR
MIC IN
+5VA J3 4 5 2 1 C25 2.2uF ELEC + PHONO-1/8 VIDEO_INL C26 100pF NPO C27 100pF NPO + C28 10uF ELEC R17 100 C24 0.1uF X7R R14 2.2K R15 1.5K
MIC_IN
L5
R18
6.8K
Connect CGND to AGND at the jack
AGND CGND
C29 0.1uF X7R
-3 dB corners at 60 Hz and 16 kHz (Ri = 28 kOhm)
AGND
AGND
AGND
AUX IN
L6 J5 4 3 2 1 4X1HDR-AU 31@100MHz AGND R25 6.8K 31@100MHz AGND R22 6.8K R20 6.8K C30 2.2uF ELEC + AUX_INR
PC SPEAKER IN
L7 J6 31@100MHz 2 1 R24 6.8K C33 2.2uF ELEC + 2X1HDR-SN/PB DGND AGND AGND R23 4.7K C32 2700pF X7R R21 47K C31 0.1uF Z5U PC_BEEP
L8
AUX_INL
-3 dB corners at 60 Hz and 13.8 kHz (Ri >= 28 kOhm)
AGND
INTERNAL MODEM CONNECTION
L9 J7 4 3 2 1 4X1HDR-AU 31@100MHz R29 47K 31@100MHz AGND R27 6.8K R26 6.8K C34 2.2uF ELEC + PHONE_IN
L10
R28
0
C35
2.2uF ELEC +
CRD4201-1
MONO_OUT
Figure 3. Analog Inputs
SDATA_1
1 2 3 4
SDATA DEM#/SCLK LRCK MCLK
AOUTL VA+ AGND AOUTR
8 7 6 5
+
+
SDATA_2 SCLK LRCLK MCLK
1 2 3 4
SDATA DEM#/SCLK LRCK MCLK
AOUTL VA+ AGND AOUTR
8 7 6 5
+
+
10
+5VA
SURROUND JACK
U2 CS4334 C36 10uF ELEC 10uF ELEC R30 560 4 R31 560 2 1 PHONO-1/8 R32 270K +5VA R33 270K R34 47K R35 47K C38 2700pF X7R C39 2700pF X7R J8
C37
Connect CGND to AGND at the jack
+ C40 10uF ELEC
C41 0.1uF Z5U
C42 0.1uF Z5U AGND AGND CGND AGND
AGND
CNT/LFE JACK
U3 CS4334 C43 10uF ELEC 10uF ELEC R36 560 4 R37 560 2 1 PHONO-1/8 R38 270K AGND R39 270K R40 47K R41 47K C45 2700pF X7R C46 2700pF X7R J9
C44
Connect CGND to AGND at the jack
AGND
AGND
CGND
AGND
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Figure 4. Rear Channel and Surround Outputs
+
3 R43 LINE_OUTR 27K 2
+
R46 Vref
33K
Vcc
U4B 5 R47 LINE_OUTL 27K 6 + 7 MC34072D
Vee
+
+
HP_OUT_C
+
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R42 33K
LINE OUT JACK
C48 10uF ELEC 10uF ELEC J10 4
C47
22pF NPO U4A
C49
+ 1 +5VA MC34072D
2 1 PHONO-1/8
R44 220K C52 0.1uF Z5U
R45 220K
C50 100pF NPO
C51 100pF NPO
Connect CGND to AGND at the jack
C53
22pF NPO
AGND AGND
CGND
AGND
HEADPHONE JACK
C54 220uF ELEC 220uF ELEC 1uF ELEC J11 4
HP_OUT_R HP_OUT_L
C55
2 1 PHONO-1/8
C56
R48 10K
R49 10K
C57 100pF NPO
C58 100pF NPO
Connect CGND to AGND at the jack
AGND
CGND
AGND
CRD4201-1
Figure 5. Front Channel and Headphone Outputs 11
CRD4201-1
SPDIF_TX
J12 5 +5VD 4 3 R50 C59 0.1uF Z5U 8.2K 2 1 6 TOTX-173 DGND DGND
DGND
Figure 6. S/PDIF Optical Output
12
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3 2 1
1 2 3
2
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+3.3VD -12V +3.3Vdual JP2 3x1 HDR SMB_A0 SMB_SCL PR_DN# ASYNC ASDOUT ABITCLK DGND +12VD C65 0.1uF Z5U
P1 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 reserved reserved reserved GND reserved reserved GND LAN_TXD1 LAN_RSTSYNC GND LAN_RXD2 LAN_RXD0 GND reserved +5Vdual USB_OC# GND -12V +3.3VD reserved reserved GND reserved reserved GND LAN_TXD2 LAN_TXD0 GND LAN_CLK LAN_RXD1 reserved USB+ GND USB+12V GND +3.3Vdual +5VD A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 +3.3VD
U5 SMB_A0 SMB_A1 SMB_A2 1 2 3 4 A0 A1 A2 Vss Vcc WP SCL SDA 8 7 6 5 C60 0.1uF Z5U
SMB_SCL SMB_SDA
AT24C02 DGND +12VD +12V +3.3Vdual JP1 3x1 HDR 1 ARESET# 2 3 DGND SMB_A1 SMB_A2 SMB_SDA ARESET# ASDIN1 ASDIN0 JP3 3x1 HDR 1 PR_DN# 2 3 ASDIN DGND JP4 3x1 HDR DGND +3.3VD J13 +5VD -12V 20 18 ASDIN0 16 ASDIN1 14 ASDOUT 12 ABITCLK 10 ASYNC 8 ARESET# 6 PR_DN# 4 +12V 2 19 17 15 13 11 9 7 5 3 1 +5VD DGND
ARST#
B20 B21 B22 B23 B24 B25 B26 B27 B28 B29 B30
GND EE_DOUT EE_SHCLK GND SMB_A0 SMB_SCL PRIMARY_DN# GND AC97_SYNC AC97_SDATA_OUT AC97_BITCLK CNR Connector
A20 GND A21 EE_DIN A22 EE_CS A23 SMB_A1 A24 SMB_A2 A25 SMB_SDA A26 AC97_RESET# A27 reserved A28 AC97_SDATA_IN1 A29 AC97_SDATA_IN0 A30 GND
PRIM_DN#
+5VA U6 1 3 + C67 10uF ELEC DGND DGND C61 0.1uF Z5U + C62 10uF ELEC C63 0.1uF Z5U + C64 10uF ELEC
DGND
IN GND
OUT
+ C66 10uF ELEC
MC78M05C
10x2 CON
AGND
Connect AGND to DGND with a 50 mil trace near the regulator. Connect CGND to DGND with a 50 mil trace near the finger edge of the board.
CRD4201-1
Figure 7. CNR Connector 13
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Figure 8. PCB Layout: Top Assembly Drawing
14
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Figure 9. PCB Layout: Top Layer
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Figure 10. PCB Layout: Bottom Layer
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Figure 11. PCB Layout: Bottom Assembly
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Figure 12. PCB Layout: Top Silkscreen
18
DS483RD1A1
5. BILL OF MATERIALS
Item Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 13 1 3 6 1 4 10 1 4 12 5 4 2 1 4 1 4 1 1 4 1 1 10 1 2 Reference Manufacturer Part Number Description C1,C2,C3,C4,C31,C41,C42,C KEMET 52,C59,C60,C61,C63,C65 C5 C6,C24,C29 C7,C8,C10,C11,C12,C13 C9 C14,C15,C47,C53 C16,C17,C21,C22,C23,C25, C30,C33,C34,C35 C18 C19,C20,C26,C27 C28,C36,C37,C40,C43,C44, C48,C49,C62,C64,C66,C67 C32,C38,C39,C45,C46 C50,C51,C57,C58 C54,C55 C56 JP1,JP2,JP3,JP4 J1 J2,J4,J5,J7 J3 J6 J8,J9,J10,J11 J12 J13 L1,L2,L3,L4,L5,L6,L7,L8,L9, L10 P1 R1,R2 KEMET KEMET KEMET KEMET KEMET PANASONIC PANASONIC KEMET PANASONIC KEMET KEMET PANASONIC PANASONIC SAMTEC LZR ELECTRONICS MOLEX LZR ELECTRONICS MOLEX LZR ELECTRONICS TOSHIBA AMP TDK NONE PHILIPS C0805C104M5UAC CAP, 0805, Z5U, .1uF, 20%, 50V C1206C225M8VAC C0805C104K5RAC C0805C102K5GAC C0805C103K5RAC C0805C220K5GAC ECE-V1VS2R2SR ECE-V1ES4R7SR C0805C101J5GAC ECE-V1CA100R C0805C272K5RAC C0805C101J5GAC ECE-V0GA221P ECE-V1HA010R TSW-103-07-T-S SJ372 70553-0003 SJ374 70553-0036 SJ373 TOTX173 103309-5 HF50ACB321611-T NONE 9C08052A47R0J CAP, 1206, Y5V, 2.2uF, 20%, 10V CAP, 0805, X7R, .1uF, 10%, 50V CAP, 0805, C0G, 1000pF, 10%, 50V CAP, 0805, X7R, .01uF, 10%, 50V CAP, 0805, C0G, 22pF, 10%, 50V CAP, SMT A, ELEC, 2.2uF, 20%, 35V CAP, SMT A, ELEC, 4.7uF, 20%, 25V CAP, 0805, COG, 100pF, 5%, 50V CAP, SMT B, ELEC, 10uF, 20%, 16V CAP, 0805, X7R, 2700pF, 10%, 50V CAP, 0805, C0G, 100pF, 5%, 50V CAP, SMT D, ELEC, 220uF, 20%, 4V CAP, SMT B, ELEC, 1uF, 20%, 50V HDR, 3x1, 0.025" PIN, 0.1" CTR CONN, 1/8" DOUBLE SW. STEREO PHONE JACK HDR, 4X1, 0.025" PIN, 0.1" CTR, 15u" AU CONN, 1/8" SINGLE SW. STEREO PHONE JACK HDR, 2X1, 0.025" PIN, 0.1" CTR, 150u" SN/PB CONN, 1/8" NON-SW. STEREO PHONE JACK CONN, OPTICAL TOSLINK TRANSMITTER CONN, 10x2 RIBBON, MALE, STRAIGHT, SHROUDED IND, FBEAD, 1206, 31@100MHz, 25% CNR BUS CONNECTOR RES, SO, 0805, 47, 5%, 1/10W, METAL FILM
DS483RD1A1 19
CRD4201-1
20 DS483RD1A1
26
18
R3,R4,R5,R6,R8,R10,R11,R1 PHILIPS 2,R13,R16,R18,R19,R20,R22 ,R24,R25,R26,R27 R9,R7 R14 R15 R17 R21,R29,R34,R35,R40,R41 R23 R28 R30,R31,R36,R37 R32,R33,R38,R39 R42,R46 R43,R47 R44,R45 R48,R49 R50 U1 U2,U3 U4 U5 U6 Y1 PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS CRYSTAL SEMICOND. CRYSTAL SEMICOND. MOTOROLA ATMEL MOTOROLA FOX
9C08052A6801F
RES, SO, 0805, 6.8K, 1%, 1/10W, METAL FILM RES, SO, 0805, 3.4K, 1%, 1/10W, METAL FILM RES, SO, 0805, 2.2K, 5%, 1/10W, METAL FILM RES, SO, 0805, 1.5K, 5%, 1/10W, METAL FILM RES, SO, 0805, 100, 5%, 1/10W, METAL FILM RES, SO, 0805, 47K, 5%, 1/10W, METAL FILM RES, SO, 0805, 4.7K, 5%, 1/10W, METAL FILM RES, SO, 0805, 0, 5%, 1/10W, METAL FILM RES, SO, 0805, 560, 5%, 1/10W, METAL FILM RES, SO, 0805, 270K, 5%, 1/10W, METAL FILM RES, SO, 0805, 33K, 1%, 1/10W, METAL FILM RES, SO, 0805, 27K, 1%, 1/10W, METAL FILM RES, SO, 0805, 220K, 5%, 1/10W, METAL FILM RES, SO, 0805, 10K, 5%, 1/10W, METAL FILM RES, SO, 0805, 8.2K, 5%, 1/10W, METAL FILM IC, TQFP, AC '97 2.1 SERIAL CODEC W/ HP AMP + SRC IC, SO, SOIC8, ADC, STEREO IC, SO, SOIC8, 34072, SINGLE SUPPLY DUAL OP AMP IC, SO, SOIC8, SERIAL EEPROM, 256 x 8, 2.7V IC, SO, +5V REGULATOR, DPAK, 4%, 500mA XTAL, 24.576MHz, HC49S, Fund Mode, Par Res
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
2 1 1 1 6 1 1 4 4 2 2 2 2 1 1 2 1 1 1 1
9C08052A3401F 9C08052A2201J 9C08052A1501J 9C08052A1000J 9C08052A4702J 9C08052A4701J 9C08052A0R00J 9C08052A5600J 9C08052A2703J 9C08052A3302F 9C08052A2702F 9C08052A2203J 9C08052A1002J 9C08052A8201J CS4201-KQ CS4334-KS MC34072D AT24C02N-10SC2.7 MC78M05CDT FS24.576
CRD4201-1
* Notes *

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