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 21
place close to
pins 8 and 4
Connect CGND
to the jack
CGND
+5VA
AGND
AGND
+5VA
+5VA
AGND
AGND
+5VA
AGND
AGND
AGND
AGND
R26
68K
+
C37
10uF
ELEC
C34 1uF
X7R
R32 2.7K
C35
220pF
C30
0.1uF
Z5U
+
C31
10uF
ELEC
R25
47K
C38 220pF
R27
47K
C33
0.068 uF
X7R
R29
47K
R28
100K
+
-
U1A
MC33078D
3
2
1
C36
220pF
+
-
U1B
MC33078D
5
6
7
R33 6.8K
J6
PHONO-1/8
4
3
5
2
1
R34 47K
MIC1
Figure 16. Audio Out