CIRRUS CRD4205-1

CRD4205-1
CrystalClear® Notebook Audio Docking Station Example
Features
l Emulates
Description
Docking Station Environment
The CRD4205-1 reference design features the CS4205
AC ‘97 audio codec and emulates the audio sub-system
in a PC notebook computer. The CRD4205-1 can be
used alone or with the CRD4205-2 companion card. The
CRD4205-2 companion card simulates the audio subsystem in a PC digital docking station.
– Simulates audio portion of a notebook
computer
– “Docks” to the CRD4205-2
l Features
the CS4205 AC ‘97 audio codec.
– 18-bit Analog to Digital Converters (ADCs)
– 20-bit Digital to Analog Converters (DACs)
– Digital mixer
– Integrated digital effects
This reference design features stereo analog audio inputs for Line, CD, Video, and Aux inputs. In addition, the
card has mono analog inputs for Microphone, Modem
Audio, and PC Beep. It also has several advanced features including a ZV port digital input and a S/PDIF digital
output.
l Four stereo and two mono analog inputs
l Digital ZV port input
l Five GPIO pins
l CNR interface
l S/PDIF (IEC-958) digital output
l Crystal, oscillator, or PLL operation
l Exceeds Microsoft PC-99 and PC-2001
The CRD4205-1 is available by ordering the CMK42053 manufacturing kit. This kit includes a full set of schematics (OrCAD® 7.2 format), PCB job files (PADS ®
ASCII), PCB Gerber files, and bill of materials. In addition, WDM audio drivers that support Windows 98se,
Millennium®, and Windows 2000 are also included.
audio performance requirements
ORDERING INFORMATION
CMK4205-3 Manufacturing Kit for the CRD4205-1
MIC
IN
INT MODEM
CD IN
VIDEO IN
AUX IN
LINE
IN
LINE / HEADPHONE
OUT
CS4205
Cirrus Logic
CRD4205-1_REVB
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  Cirrus Logic, Inc. 2001
(All Rights Reserved)
FEB ‘01
DS489RD1A2
1
CRD4205-1
TABLE OF CONTENTS
1.
2.
3.
4.
5.
6.
GENERAL INFORMATION .......................................................................... 3
SCHEMATIC DESCRIPTION ...................................................................... 3
2.1 Block Diagram ...................................................................................... 3
2.2 CS4205 Audio Codec ........................................................................... 3
2.3 Analog Inputs ....................................................................................... 3
2.4 Dock Interface ..................................................................................... 4
2.5 AnalogOutputs ..................................................................................... 4
2.6 S/PDIF Optical Output .......................................................................... 4
2.7 CNR Connector .................................................................................... 4
2.8 Component Selection ........................................................................... 5
2.9 EMC Components ................................................................................ 5
GROUNDING AND LAYOUT ....................................................................... 5
REFERENCES ............................................................................................. 6
ADDENDUM ................................................................................................. 6
BILL OF MATERIALS ............................................................................ 22
LIST OF FIGURES
Figure 1. Block Diagram........................................................................................7
Figure 2. CS4205 Audio Codec.............................................................................8
Figure 3. Analog Inputs .........................................................................................9
Figure 4. Docking Interface .................................................................................10
Figure 5. Analog Outputs ....................................................................................11
Figure 6. S/PDIF Optical Outputs........................................................................12
Figure 7. CNR Connector....................................................................................13
Figure 8. Assembly Drawing ...............................................................................14
Figure 9. Top Silkscreen .....................................................................................15
Figure 10. Top Layer ...........................................................................................16
Figure 11. Ground Layer .....................................................................................17
Figure 12. Vcc Layer ...........................................................................................18
Figure 13. Bottom Layer......................................................................................19
Figure 14. Bottom Silkscreen ..............................................................................20
Figure 15. Drill Drawing.......................................................................................21
LIST OF TABLES
Table 1. Serial I/O Breakout Connector ................................................................ 3
Table 2. CNR Connector Jumper Settings ............................................................ 5
Table 3. JP8 and JP3 Positions for Each Clock Mode .......................................... 5
Table 4. Bill of Materials ...................................................................................... 22
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/sales.cfm
Microsoft , Windows 95, Windows 98 and Windows Millenium 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.
2
CRD4205-1
1. GENERAL INFORMATION
The CRD4205-1 reference design can be used for
the development of CNR or motherboard PC audio
systems that use the CS4205. The CRD4205-1 can
also be used in conjunction with the CRD4205-2 to
develop audio systems for PC notebook computers
with digital docking stations.
The CS4205 is an AC ‘97 audio codec with the
same great features as our other Crystal Clear® audio codecs and some unique features especially designed for PC notebook computers. These include
I2S outputs for digital docking and a ZV port for
digital audio inputs. For additional information on
the CS4205 audio codec, see the CS4205
Datasheet.
2. SCHEMATIC DESCRIPTION
This section describes the CRD4205-1 schematics
shown in figures 1 through 7. These schematics are
also available in the CMK4205-3 manufacturing
kit as ORCAD version 7.2 files.
2.1
Block Diagram
The block diagram shows the interconnections between schematic pages. The schematic is divided
into six blocks: the CS4205 Audio Codec, Analog
Inputs, Docking Interface, Analog Outputs,
S/PDIF Optical Output, and CNR Connector.
2.2
The CS4205 has anti-alias filters for the ADCs that
require external filter capacitors on AFLT1,
AFLT2, and AFLT3 (pins 29, 30, and 31). Each
pin has a 1000 pF NPO/COG capacitor to analog
ground. NPO/COG capacitors are used to minimize
audio distortion.
The internal ADCs, DACs, and AC-Link operate at
a fixed 48 kHz sampling rate. The CS4205 is
clocked by a 24.576 MHz (+ 50 PPM) crystal.
This design provides two population options for
different crystal footprints. Footprint Y1 is for CA301 miniature crystals and footprint Y2 supports
standard HC-49S package. Footprint Y3 is for an
optional clock oscillator.
Many notebook computers have a ZV or “Zoomed
Video” port that carries PCM audio data in I2S serial format. The CS4205 has a built-in ZV port input connected to JP5.
The CS4205 has seven multi-purpose pins that primarily support I2S serial inputs and outputs for digital docking or multi-channel audio. These signals
are tied to a a 5x2 (0.1 inch center) breakout connector.
Pin
1
3
5
7
9
Even Pins
CS4205 Audio Codec
Figure 2 shows the CS4205 and its associated circuitry. The CS4205 communicates digitally to the
audio controller or core logic through a five wire
bi-directional 12.288 MHz serial interface called
the AC-Link. The AC-Link may require series termination resistors. These resistors should be located close to their respective signal source. The
BIT_CLK and SDATA_IN signals are driven from
the CS4205, while the SDATA_OUT, SYNC, and
RESET# signals are driven from the controller.
RESET# does not require serial termination.
Function
LRCLK
SDO1
DSSD1
DSSD2
DSDD3
Digital Ground
Table 1. Serial I/O Breakout Connector
2.3
Analog Inputs
The CRD4205-1 has four stereo and three mono
analog audio inputs as shown in figure 3. The inputs for VIDEO, AUX and LINE are passed
through a divider circuit that reduces the voltage by
6 dB to allow connection of line level sources up to
2 Vrms. The 100 pF capacitors are provided on
Line In and Mic In for EMI suppression. The capacitors may be removed if EMC testing determines they are not required.
3
CRD4205-1
MIC IN and PC BEEP IN are AC coupled through
0.1 µF capacitors. All analog other analog inputs
are AC coupled through 2.2 µF electrolytic capacitors to minimize the low frequency roll-off.
The internal CD audio connection utilizes a pseudo-differential interface with CD GND as the common return path for both the left and right channels.
This arrangement will reduce any common mode
noise picked up by the CD signal path.
The MODEM AUDIO connector provides monitoring of modem audio signals during modem dialing and connecting. This connector has both the
modem audio input and output signals. The modem
input voltage is divided by 6 dB and can accommodate a line level source up to 2 Vrms. The output is
connected to the CS4205 MONO_OUT pin. The
maximum output voltage is 1 Vrms.
The MIC IN circuit complies with PC-99 requirements for both microphone phantom power and optional frequency response roll-offs. Phantom
power for the microphone is derived from the +5 V
analog supply and filtered by R14, R15, C27, and
C28. The 3 dB roll-off points located at 60 Hz and
15 kHz.
The PC BEEP input connector routes the computer
beep tones to the CS4205. The CS4205 has a feature called PC Beep Bypass that allows system
beeps to be heard even during system reset or
BIOS boot-up.
2.4
Dock Interface
The CRD4205-1 is designed to “dock” with the
CRD4205-2 to simulate a notebook computer digital docking system. The CRD4205-1 simulates the
audio circuitry in the notebook computer and the
CRD4205-2 simulates the audio circuitry in the
docking station. The CS4205 serial ports provides
the digital audio output for the digital docking station.
4
2.5
Analog Outputs
The LINE_OUT jack in figure 5 functions as the
main stereo outputs in a two channel system. This
circuit utilizes a Motorola MC34072 dual opamp
which is capable of driving high impedance line
level signals (10 kΩ or greater). This circuit has a
gain of 3 dB.
2.6
S/PDIF Optical Output
The S/PDIF (IEC-958) digital output in figure 6 is
compatible with digital inputs on consumer devices
such as stereo receivers and MiniDisc recorders.
The S/PDIF output of the CS4205 operates at a fix
sampling frequency of 48 kHz. The CRD4205-1
S/PDIF digital optical output uses an industry standard Toshiba TOTX-173 optical transmitter.
2.7
CNR Connector
The CNR connector shown in figure 7 is the interface between the CRD4205-1 and the system motherboard. The CNR interface supports audio,
modem, and LAN subsystems. Also present on the
CNR connector is 12 Volt, 5 Volt, and 3.3 Volt
power. The CRD4205-1 uses the AC-Link, SMBus, 12 Volt, and 3.3 Volt power. The SMBus signals are connected to a AT24C02 EEPROM that
enables plug-in-play functionality. The EEPROM
holds the subsystem vendor ID and subsystem ID.
It also contains other information for implementing
a Plug-and-Play CNR card. See the Intel® Communication and Network Riser homepage at http://developer.intel.com/technology/cnr/ for CNR design
specifications, programming utilities, and information on programming the EEPROM.
The CRD4205-1 CNR connector includes jumpers
for several functions. These are summarized in
table 2.
CRD4205-1
.
Jumper
Pins 1-2
Reset from CNR
Bus
3.3 V from CNR
Bus
From CNR Bus
JP1
Codec Reset
JP2
3.3 V supply
JP3
Primary Down
JP8
From CNR Bus
Secondary Down
JP4
SDATA_IN0
SDIN Target
JP9
Places pull-up
Primary Down
on Primary Down
when inserted.
Pins 2-3
Force Low
Not Used
Force Low
2.8
Great attention was given to the particular components used on the CRD4205-1 board with cost, performance, and package selection as the most
important factors. Listed are some of the guidelines
used in the selection of components:
Force Low
•
No components smaller than 0805 package.
SDATA_IN1
•
Only single package components passive components. No resistor packs. This reduces the
risk of crosstalk between audio signals.
•
All ICs are surface mount.
•
Dual footprint for XTAL. Standard H49S and
small circular CA-301 pin in hole package.
NA
(2 pin jumper)
Table 2. CNR Connector Jumper Settings
Note:The CRD4205-1 default positions for all jumpers is
between pins 1-2
JP9 inserts a 1 kΩ pull-up on Primary Down. This
is used to disable on-board audio for motherboards
that have a 10 kΩ pull-down resistor on Primary
Down as required by the CNR 1.1 specification.
In addition, JP3 and JP8 can be used to determine
the clocking mode of the CS4205. The CS4205
supports three clocking modes: oscillator (Osc),
crystal (Xtal), and AC-Link bit clock (BIT_CLK).
This is shown in table 3.
JP8
1-2
1-2
2-3
2-3
1-2
1-2
2-3
2-3
JP3
1-2
2-3
1-2
2-3
1-2
2-3
1-2
2-3
ID
0
0
0
0
0
1
2
3
Osc
Osc
Osc
Osc
Osc
Xtal
Bclk
Bclk
Bclk
PLL
no
yes
yes
yes
no
no
no
no
Component Selection
Frequency
Mode
24.576 MHz
Primary
14.318 MHz
Primary
27.000 MHz
Primary
48.000 MHz
Primary
24.576 MHz
Primary
12.288 MHz Secondary
12.288 MHz Secondary
12.288 MHz Secondary
Table 3. JP8 and JP3 Positions for Each Clock Mode
The CS4205 requires both digital +3.3 V and analog +5 V supply. The digital power is supplied
from the CNR connector. A Motorola MC78M05C
regulates the +12 V supply from the CNR bus
down to a clean +5 V analog supply. This +5 V linear regulator is used to maintain good audio quality.
2.9
EMC 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
One of the most critical aspects of PC audio design
is good PC board layout. The PC is a hostile environment for audio and good layout is essential for
achieving high audio quality.
The CRD4205-1 is partitioned into a digital and analog sections to help isolate noisy digital circuitry
from quiet analog audio circuitry. The most important rule for successful PC audio layout is to keep
all digital signal traces and components over the
digital ground plane, and all analog signal traces
and components over an analog ground plane.
These planes are separated by a minimum of 60 to
100 mils (0.060 to 0.100 inches). Do not allow digital and analog signals to cross planes, otherwise
digital noise may be induced into the analog signals
and severely reduce audio performance.
The CS4205 is placed at the transition point of the
analog and digital ground planes. The CS4205 pins
are partitioned into analog and digital areas. This is
5
CRD4205-1
done to make board layout easier. The digital and
analog grounds are tied together by a wide trace,
over 50 mils or 0.050 inches, at a single point underneath the CS4205 in order to provide a common
ground reference.
Delta-sigma converters are highly susceptible to
noise on the crystal pins. The area around the crystal oscillator and the two XTAL signals is filled
with copper on the top and bottom sides and attached to digital ground. This ground plane serves
to keep noise from coupling onto these pins. A separate chassis ground provides a reference plane for
all of the EMC components. The chassis ground
plane is connected to the analog ground plane at the
external jacks. The capacitors on REFFLT,
AFLT1, AFLT2, AFLT3, and the power supply
are placed close to the CS4205 pins for best audio
performance.
6
4. REFERENCES
1) Intel, Audio Codec ‘97 Component Specification, Revision 2.1, May 22, 1998.
developer.intel.com/pc-supp /platform/ac97/
2) Communication and Network Riser Specification revision 1.0, Feb 7, 2000 http://developer.intel.com/technology/cnr/.
3) Steve Harris, Clif Sanchez, Personal Computer
Audio Quality Measurements, Ver 1.0
www.cirrus.com/products/papers/meas/meas.htm
4) Cirrus Logic, CS4205 Data Sheet
5. ADDENDUM
•
Schematic drawings
•
Layout drawings
LINE_IN_L
LINE_IN_L
LINE_OUT_L
LINE_OUT_L
LINE_IN_R
LINE_IN_R
LINE_OUT_R
LINE_OUT_R
CD_IN_L
CD_IN_L
CD_IN_R
CD_COM
CD_IN_R
CD_COM
VIDEO_IN_L
VIDEO_IN_R
VREF
VREF
DSSDI3
DSSDI2
DSSDI1
VIDEO_L
VIDEO_R
AUX_IN_L
AUX_IN_R
AUX_IN_R
PC_BEEP
Analog Inputs
ABITCLK
ASYNC
ASDOUT
ASDIN
PHONE_IN
MONO_OUT
ARST#
PHONE_IN
MONO_OUT
MIC1
SEC_DN#
PRIM_DN#
MIC_IN
SPDIF/SDATA_2
Front Channel Outputs
AUX_IN_L
PC_BEEP
SDATA_1
SCLK
LRCLK
SDATA_1
SCLK
LRCLK
CS4205 Audio Codec
SPDIF/SDATA_2
ABITCLK
DSSDI3
ARST#
ABITCLK
ASYNC
ASDOUT
ASDIN
SEC_DN#
PRIM_DN#
DSSDI2
DSSDI1
Dock Interface/Surround Outputs
CNR Connector
SPDIF/SDATA_2
S/PDIF Optical Output
7
CRD4205-1
Figure 1. Block Diagram
8
+3.3VD
+3.3VD
+5VA
+5VA
U1
25
38
C1
0.1uF
X7R
C2
0.1uF
X7R
C3
0.1uF
X7R
C4
0.1uF
X7R
1
9
CS4205
AVdd1
AVss1
AVdd2
AVss2
DVdd1
DVss1
DVdd2
DVss2
26
42
4
7
AGND
DGND
12
PC_BEEP
AGND
C11
1000pF
NPO
MONO_OUT
LINE_OUT_L
LINE_OUT_R
DGND
C12
1000pF
NPO
13
14
PHONE_IN
AUX_IN_L
AUX_IN_R
VIDEO_L
C13
1000pF
NPO
15
16
17
VIDEO_R
CD_IN_L
18
CD_COM
CD_IN_R
MIC1
20
19
21
22
23
LINE_IN_L
LINE_IN_R
AGND
24
28
VREF
27
29
30
31
PC_BEEP
BIT_CLK
PHONE
SDATA_OUT
AUX_L
SDATA_IN
AC-Link
AUX_R
SYNC
VIDEO_L
RESET#
VIDEO_R
CD_L
LINE_OUT_L
Analog
CD_GND
LINE_OUT_R
CD_R
MONO_OUT
MIC1
MIC2
ID0#
LINE_IN_L
ID1#
ZSDATA
REFFLT
ZSCLK
AFLT1
AFLT2
SPDO/SDO2
AFLT3
EAPD/SCLK
GPIO4/SDI3
GPIO,
C5
2.2uF
Y5V
C6
0.1uF
X7R
C7
1000pF
NPO
C8
1000pF
NPO
C10
1000pF
NPO
3
2
0
ABITCLK
ASDOUT
ASDIN
ASYNC
ARST#
10
11
35
LINE_OUT_L
LINE_OUT_R
MONO_OUT
PRIM_DN#
36
37
SEC_DN#
1
2
32
33
34
48
47
41
39
GPIO2/SDI1
XTL_OUT
GPIO1/SDOUT
XTL_IN
GPIO0/LRCLK
JP5
44
43
ZV Port
Pin 1 can provide a
3
DGND on the back side
4
over to DGND test pin.
4X1CON
40
GPIO3/SDI2
Serial
0
R2
46
ZLRCLK
ZV Port
R1
45
LINE_IN_R
Vrefout
6
5
8
SPDIF/SDATA_2
SCLK
DSSDI3
DSSDI2
DSSDI1
SDATA_1
LRCLK
Y1
NOTE:
AGND
Populated only
For Crystal operation:
24.576MHz
Y2
R51
NO POP
2.2k
populate C15=22 pF
For Oscillator operation:
populate Y3 = 14.318 MHz, C68=
0.022 uF, R51= 2.2 k ohms, R52 =
100 ohms, C15=220 pF
and remove C14, and Y1
+3.3VD
C68
NO POP
0.022uF
C15
22pF
NPO
24.576MHz
NO POP
8
or Y3.
C14
22pF
NPO
GPIOs
J13
10
9
4
8
7
3
6
5
2
4
3
1
2
1
0
5x2 CON
DGND
DGND
Y3
NO POP
one of Y1, Y2,
DGND
DGND
1
R52
NO POP
5
osc.
4
100
14.318MHz
Figure 2. CS4205 Audio Codec
CRD4205-1
DGND
CD IN
LINE IN
L1
C16
2.2uF
ELEC
3
2
J1
CD_IN_R
4
3
270K
5
2
[No Pop]
1
R4
6.8K
R6
6.8K
R8
6.8K
R10
6.8K
C17
2.2uF
ELEC
+
R5
AGND
[email protected]
0
+
4
AGND
J2
R3
LINE_IN_R
1
L2
0
C18
4.7uF
ELEC
+
270K
C19
100pF
NPO
Connect CGND
C20
100pF
NPO
to AGND at
[No Pop]
C21
2.2uF
ELEC
+
R9
PHONO-1/8
CD_COM
AGND
[email protected]
AGND
4X1HDR-AU
R7
LINE_IN_L
the jack
L3
0
C22
2.2uF
ELEC
+
AGND
[email protected]
R11
R12
CD_IN_L
AGND
CGND
270K
[No Pop]
VIDEO IN
L4
6.8K
C23
2.2uF
ELEC
+
[email protected]
R13
AGND
J4
4
+5VA
MIC IN
R16
R14
J3
2.2K
R15
1.5K
4
VIDEO_IN_R
5
6.8K
3
2
R17
100
C24
2
1
0.1uF
X7R
MIC_IN
1
L5
6.8K
R19
6.8K
C25
2.2uF
ELEC
+
[email protected]
AGND
4X1HDR-AU
R18
C26
100pF
NPO
PHONO-1/8
VIDEO_IN_L
Connect CGND
+ C28
10uF
ELEC
C29
0.1uF
X7R
to AGND at
-3 dB corners at 60 Hz
and 16 kHz
the jack
(Ri = 28 kOhm)
AGND
AGND
AUX IN
C27
100pF
NPO
AGND
CGND
AGND
PC BEEP IN
J6
L6
R20
6.8K
C30
J5
+
[email protected]
AGND
4
3
2.2uF
ELEC
R22
L7
6.8K
R26
6.8K
R27
6.8K
L10
R28
0
[email protected]
R29
47K
[email protected]
C33
R23
4.7K
C32
2700pF
X7R
2.2uF
ELEC
+
R25
4X1HDR-AU
AGND
6.8K
0.1uF
PC_BEEP
[email protected]
2X1HDR-SN/PB
R24
C31
47K
X7R
6.8K
2
1
L8
R21
2
1
AUX_IN_R
AUX_IN_L
-3 dB corners at 60 Hz
and 13.8 kHz
(Ri >= 28 kOhm)
DGND
AGND
AGND
AGND
MODEM AUDIO
L9
2.2uF
ELEC
PHONE_IN
3
2
1
C35
2.2uF
ELEC
+
AGND
AGND
4X1HDR-AU
MONO_OUT
Figure 3. Analog Inputs
9
CRD4205-1
[email protected]
C34
+
4
AGND
J7
10
NOT SUPPORTED
+5VA
SURROUND
JACK
SDATA
DEM#/SCLK
LRCK
MCLK
AOUTL
VA+
AGND
AOUTR
8
7
6
5
C36
1
4
NO POP
Connect CGND
2
R35
NO POP
1
R34
NO POP
2
R33
NO POP
C39
NO POP
X7R
2
2
2
to AGND at
+
C41
NO POP
X7R
2
2
C40
ELEC
NO POP
2
To Docking
NO POP
2
1
1
10
C42
NO POP
X7R
DGND
AGND
AGND
AGND
AGND
AGND
13
11
9
7
5
3
1
/OBE
CNT/LFE
DSMCK
JACK
DSLRCK
U3
DSSCK
J9
NO POP
C44
1
SDATA1
SDATA2
n.c. (reserved)
1
2
3
4
SDATA
DEM#/SCLK
LRCK
MCLK
AOUTL
VA+
AGND
AOUTR
8
7
6
5
NO POP
2
ELEC
C43 NO POP
1
2
ELEC
+
7x2 CON
R30
1
1
the jack
GND
J14
DSSDI1
DSSDI3
DSSDI2
1
2
1
R32
NO POP
74HC244
14
12
10
8
6
4
2
NO POP
2
1
+5VA
1
VCC
R31
C38
NO POP
X7R
1OE
2OE
20
NO POP
2
ELEC
1
9
7
5
3
+
1
2
3
4
2
1
19
2Y1
2Y2
2Y3
2Y4
18
16
14
12
NO POP
2
ELEC
1
DGND
2A1
2A2
2A3
2A4
1Y1
1Y2
1Y3
1Y4
C37
1
1
11
13
15
17
SPDIF/SDATA_2
+5VD
1A1
1A2
1A3
1A4
J8
NO POP
+
2
4
6
8
SDATA_1
SCLK
LRCLK
ABITCLK
U2
+
U7
1
2
R36
1
NO POP
2
4
R41
NO POP
2
2
C45
NO POP
X7R
AGND
NO POP
1
R39
NO POP
1
R38
NO POP
NO POP
2
1
1
R40
NO POP
1
1
Station
DGND
R37
1
C46
NO POP
X7R
Connect CGND
2
2
2
2
to AGND at
the jack
AGND
AGND
AGND
CRD4205-1
Figure 4. Docking Interface
AGND
R42
33K
LINE OUT
JACK
C47
22pF
C48
10uF
+
NPO
+5VA
U4A
1
+
27K
10uF
+
C49
3
R43
J10
4
ELEC
2
ELEC
1
2
-
LINE_OUT_R
PHONO-1/8
MC34072D
+5VA
Vcc
AGND
33K
R46
R44
R45
C50
C51
220K
220K
100pF
100pF
NPO
NPO
Connect CGND
to AGND at
the jack
C52
C53
VREF
22pF
0.1uF
NPO
X7R
5
R47
27K
Vee
+5VA
U4B
7
+
AGND
AGND
AGND
AGND
6
LINE_OUT_L
-
MC34072D
AGND
11
CRD4205-1
Figure 5. Analog Outputs
12
SPDIF/SDATA_2
J12
5
4
+5VD
3
1
C59
0.1uF
X7R
R50
1
DGND
8.2K
2
2
1
2
6
TOTX-173
DGND
DGND
CRD4205-1
Figure 6. S/PDIF Optical Outputs
+3.3VD
P1
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
reserved
GND
GND
reserved
reserved
reserved
reserved
GND
GND
LAN_TXD2
LAN_TXD1
LAN_RSTSYNC
LAN_TXD0
GND
GND
LAN_RXD2
LAN_CLK
LAN_RXD1
LAN_RXD0
GND
reserved
USB+
GND
USB+12V
GND
-12V
B18
B19
GND
+3.3Vdual
+3.3VD
+5VD
U5
A2
A3
SMB_A0
SMB_A1
SMB_A2
A4
A5
1
2
3
A6
4
A7
A8
A0
A1
Vcc
WP
A2
SCL
Vss
SDA
8
7
6
5
C60
0.1uF
X7R
SMB_SCL
SMB_SDA
AT24C02
A9
A10
DGND
A11
A12
DGND
JP1
3x1HDR
A13
A14
+12VD
1
+5VD
A15
ARESET#
2
A16
A17
+12V
A18
A19
+3.3Vdual
ARST#
3
DGND
1
B23
B24
SMB_A0
SMB_SCL
PR_DN#
B25
B26
GND
EE_DIN
EE_SHCLK
GND
EE_CS
SMB_A1
SMB_A0
SMB_SCL
SMB_A2
SMB_SDA
PRIMARY_DN#
GND
B27
B28
ASYNC
ASDOUT
ABITCLK
GND
EE_DOUT
B29
B30
AC97_RESET#
reserved
AC97_SYNC
AC97_SDATA_IN1
AC97_SDATA_OUT
AC97_BITCLK
AC97_SDATA_IN0
GND
A20
A23
A24
A25
A26
A27
A28
A29
+3.3VD
JP3
3x1HDR
A21
A22
PR_DN#
1
SMB_A1
SMB_A2
SMB_SDA
ARESET#
2
3
PRIM_DN#
R53
1k
JP8
3x1HDR
ASDIN1
ASDIN0
DGND
2
1
B21
B22
1
ASDIN
A30
3
B20
JP2
3x1HDR
1
2
3
2
reserved
reserved
+5Vdual
USB_OC#
B16
B17
+3.3Vdual
reserved
reserved
reserved
B15
+3.3VD
A1
2
3
SEC_DN#
JP9
2x1HDR
JP4
3x1HDR
CNR Connector
DGND
DGND
DGND
+5VD
JP8 JP3 id Osc? PLL
1-2 1-2 0 Osc. no
Frequency Mode
24.576 MHz Primary
1-2 2-3 0 Osc. yes 14.318 MHz Primary
2-3 1-2 0 Osc. yes 27.000 MHz Primary
C63
0.1uF
X7R
+12VD
+5VA
+3.3VD
U6
IN
OUT
3
DGND
C65
0.1uF
X7R
+ C66
10uF
ELEC
2
GND
1
MC78M05C
+ C67
10uF
ELEC
C61
0.1uF
X7R
+ C64
10uF
ELEC
2-3 2-3 0 Osc
yes 48.000 MHz Primary
1-2* 1-2* 0 Xtal no
24.576 MHz Primary
1-2 2-3 1 BCLK no
12.288 MHz Secondary
2-3 1-2 2 BCLK no
12.288 MHz Secondary
2-3 2-3 3 BCLK no
12.288 MHz Secondary
* Indicates Default Jumper Setting
+ C62
10uF
ELEC
DGND
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.
Figure 7. CNR Connector
13
CRD4205-1
AGND
CRD4205-1
Figure 8. Assembly Drawing
14
CRD4205-1
Figure 9. Top Silkscreen
15
CRD4205-1
Figure 10. Top Layer
16
CRD4205-1
Figure 11. Ground Layer
17
CRD4205-1
Figure 12. Vcc Layer
18
CRD4205-1
Figure 13. Bottom Layer
19
CRD4205-1
Figure 14. Bottom Silkscreen
20
CRD4205-1
Figure 15. Drill Drawing
21
22
6. BILL OF MATERIALS
Manufacturer
KEMET
Part Number
C0805C104K5RAC
Description
CAP, 0805, X7R, .1uF, 10%, 50V
KEMET
KEMET
KEMET
PANASONIC
C1206C225M8VAC
C0805C102K5GAC
C0805C220K5GAC
ECE-V1VS2R2SR
CAP, 1206, Y5V, 2.2uF, 20%, 10V
CAP, 0805, C0G, 1000pF, 10%, 50V
CAP, 0805, C0G, 22pF, 10%, 50V
CAP, SMT A, ELEC, 2.2uF, 20%, 35V
PANASONIC
KEMET
PANASONIC
ECE-V1ES4R7SR
C0805C101J5GAC
ECE-V1CA100R
CAP, SMT A, ELEC, 4.7uF, 20%, 25V
CAP, 0805, COG, 100pF, 5%, 50V
CAP, SMT B, ELEC, 10uF, 20%, 16V
KEMET
NO POP
NO POP
KEMET
SAMTEC
SAMTEC
SAMTEC
LZR ELECTRONICS
MOLEX
LZR ELECTRONICS
MOLEX
NO POP
NO POP
LZR ELECTRONICS
TOSHIBA
MOLEX
AMP
TDK
C0805C272K5RAC
NO POP
NO POP
NO POP
TSW-103-07-T-S
TSW-104-07-G-S
TSW-102-07-T-S
SJ372
70553-0003
SJ374
70553-0036
NO POP
NO POP
SJ373
TOTX173
10-89-1101
103309-2
HF50ACB321611-T
CAP, 0805, X7R, 2700pF, 10%, 50V
NO POP
NO POP
NO POP
HDR, 3x1, 0.025" PIN, 0.1" CTR
HDR, 4x1, 0.025" PIN, 0.1" CTR
HDR, 2x1, 0.025" PIN, 0.1" CTR
CONN, 3.5MM DOUBLE SW. STEREO PHONE JACK
HDR, 4X1, 0.025" PIN, 0.1" CTR, 15u" AU
CONN, 3.5MM DOUBLE SW. STEREO PHONE JACK
HDR, 2X1, 0.025" PIN, 0.1" CTR, 150u" SN/PB
NO POP
NO POP
CONN, 1/8" NON-SW. STEREO PHONE JACK
CONN, OPTICAL TOSLINK TRANSMITTER
CONN, 5x2 HEADER, MALE, STRAIGHT
CONN, 7x2 RIBBON, MALE, STRAIGHT, SHROUDED
IND, FBEAD, 1206, [email protected], 25%
NONE
PHILIPS
PHILIPS
NONE
9C08052A0R00J
9C08052A6801F
CNR BUS CONNECTOR
RES, SO, 0805, 0, 5%, 1/10W, METAL FILM
RES, SO, 0805, 6.8K, 1%, 1/10W, METAL FILM
PHILIPS
PHILIPS
PHILIPS
PHILIPS
PHILIPS
PHILIPS
9C08052A2703J
9C08052A2201J
9C08052A1501J
9C08052A1000J
9C08052A4702J
9C08052A4701J
RES, SO, 0805, 270K, 5%, 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
CRD4205-1
Item Quantity
Reference
1
14
C1,C2,C3,C4,C6,C24,C29,
C31,C52,C59,C60,C61,C63,
C65
2
1
C5
3
6
C7,C8,C10,C11,C12,C13
4
4
C14,C15,C47,C53
5
10
C16,C17,C21,C22,C23,C25,
C30,C33,C34,C35
6
1
C18
7
6
C19,C20,C26,C27,C50,C51
8
7
C28,C48,C49,C62,C64,C66,
C67
9
1
C32
10
5
C36,C37,C40,C43,C44
11
6
C38,C39,C42,C45,C46,C68
12
1
C41
13
5
JP1,JP2,JP3,JP4,JP8
14
1
JP5
15
1
JP9
16
1
J1
17
4
J2,J4,J5,J7
18
1
J3
19
1
J6
20
1
J8
21
1
J9
22
1
J10
23
1
J12
24
1
J13
25
1
J14
26
10
L1,L2,L3,L4,L5,L6,L7,L8,L9,
L10
27
1
P1
28
6
R1,R2,R3,R7,R11,R28
29
14
R4,R6,R8,R10,R13,R16,R18,
R19,R20,R22,R24,R25,R26,
R27
30
3
R5,R9,R12
31
1
R14
32
1
R15
33
1
R17
34
2
R29,R21
35
1
R23
36
14
37
38
39
40
41
42
43
44
45
46
47
48
49
50
2
2
2
1
1
1
2
1
1
1
1
1
1
1
R30,R31,R32,R33,R34,R35,
R36,R37,R38,R39,R40,R41,
R51,R52
R42,R46
R43,R47
R45,R44
R50
R53
U1
U2,U3
U4
U5
U6
U7
Y1
Y2
Y3
NO POP
NO POP
NO POP
PHILIPS
PHILIPS
PHILIPS
PHILIPS
PHILIPS
CIRRUS LOGIC
NO POP
MOTOROLA
ATMEL
MOTOROLA
MC74HC244DAW
FOX
NO POP
NO POP
9C08052A3302F
9C08052A2702F
9C08052A2203J
9C08052A8201J
9C08052A1001J
CS4205-KQ
NO POP
MC34072D
AT24C02N-10SC-2.7
MC78M05CDT
MOTOROLA
FS24.576
NO POP
NO POP
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, 8.2K, 5%, 1/10W, METAL FILM
RES, SO, 0805, 1k, 5%, 1/10W, METAL FILM
IC, TQFP, AC ’97 2.1 SERIAL CODEC
NO POP
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
IC,74HC244, HCTTL, S020
XTAL, 24.576MHz, HC49S, Fund Mode, Par Res
NO POP
NO POP
CRD4205-1
23