Instruction Manual
Table Of Contents
- CRD4299-1 AMR: CrystalClear™ AC '97 AMR Reference Design
- Features
- Description
- TABLE OF CONTENTS
- LIST OF FIGURES
- LIST OF TABLES
- Contacting Cirrus Logic Support
- 1. GENERAL INFORMATION
- 2. REFERENCE DESIGN FEATURES
- 3. SCHEMATIC DESCRIPTION
- 4. GROUNDING AND LAYOUT
- 5. AUDIO PERFORMANCE EVALUATION
- Table 1. Reference Designators
- Table 2. Microphone Support Specifications
- Table 3. Full Duplex Specifications
- Table 4. Analog Mixer, Line In to Line Out Specifications
- Table 5. Analog Mixer, Mic In to Line Out Specifications
- 5.1 Plots
- Figure 1. Full Duplex (A-D-PC-D-A): Line In/Out Frequency Response
- Figure 2. Full Duplex (A-D-PC-D-A): Line In/Out Dynamic Range
- Figure 3. Full Duplex (A-D-PC-D-A): Line In/Out THD+N vs. Frequency
- Figure 4. Analog Mixer (A-A): Line In/Out Frequency Response
- Figure 5. Analog Mixer (A-A): Line In/Out Dynamic Range
- Figure 6. Analog Mixer (A-A): Line In/Out THD+N vs. Frequency
- Figure 7. Analog Mixer (A-A): Mic In/Line Out Frequency Response
- Figure 8. Analog Mixer (A-A): Mic In/Line Out Dynamic Range
- Figure 9. Analog Mixer (A-A): Mic In/Line Out THD+N vs. Frequency
- Figure 10. Analog Mixer (A-A): Line In/Out Crosstalk vs. Frequency
- 6. REFERENCES
- 7. SCHEMATIC, LAYOUT, AND BRACKET DRAWINGS
- 8. BILL OF MATERIALS
CRD4299-1 AMR
DS319RD1A1 17
AMR BUS
populate R51 if
primar
y
codec.
populate R50 if
secondar
y
codec.
populate R2 for
CS4299 board
populate R3 for
CS4297 board
+12VD
+3.3VD
+5VD
AGND
-12VD
DGND DGND
DGND
DGND
+3.3VD
+5VD
CGND
R3 0
R50 47
KEY
KEY KEY
KEY
P1
AMR CONNECTOR
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
AUDIO_MUTE#
GND
MONO_OUT/PC_BEEP
RSVD
RSVD
PRIMARY_DN#
-12V
GND
+12V
GND
+5VD
GND
RSVD
RSVD
+3.3VD
GND
AC97_SDATA_OUT
AC97_RESET#
AC97_SDATA_IN3
GND
AC97_SDATA_IN2
GND
AC97_MSTRCLK
AUDIO_PWRDN
MONO_PHONE
RSVD
RSVD
RSVD
GND
+5Vdual/+5VSB
USB_OC#
GND
USB+
USB-
GND
S/PDIF_IN
GND
+3.3Vdual/+3.3VSB
GND
AC97_SYNC
GND
AC97_SDATA_IN1
GND
AC97_SDATA_IN0
GND
AC97_BITCLK
R51 47
C2
0.1uF
Z5U
M1
HOLE
1
M3
TOOLHOLE
M2
HOLE
1
+
C1
10uF
ELEC
+
C3
10uF
ELEC
R2 0
ASDIN
S/PDIF_OUT
ABITCLK
ARST#
PRIMARY_DN#
ASYNC
ASDOUT
PC_BEEP_BUS
MSTRCLK
S/PDIF_CODEC
Figure 12. AMR Bus