Preliminary Product InformationThis document contains information for a new product.Cirrus Logic reserves the right to modify this product without not
CRD4299-1 AMR10 DS319RD1A1 CwGRAPH 0.65 CrystalWare(tm)20 100 1 k 10 k 20 k3210-1-2-3-4-5-6-76543210-1-2-3-4CRD429
CRD4299-1 AMRDS319RD1A1 11CwGRAPH 0.65 CrystalWare(tm)20 100 1 k 10 k 20 k-60-65-70-75-80-85-90-95-100-105-110-50-55-60-65-70-75-80-85-90-95-100CRD42
CRD4299-1 AMR12 DS319RD1A1CwGRAPH 0.65 CrystalWare(tm)20 100 1 k 10 k 20 k-60-65-70-75-80-85-90-95-100-105-110-50-55-60-65-70-75-80-85-90-95-100CRD42
CRD4299-1 AMRDS319RD1A1 13CwGRAPH 0.65 CrystalWare(tm)20 100 1 k 10 k 20 k3210-1-2-3-4-5-6-7CRD429~1\99-1MAM.ADXFrequency (Hz)Amplitude (dB)Figure 7.
CRD4299-1 AMR14 DS319RD1A1CwGRAPH 0.65 CrystalWare(tm)20 100 1 k 10 k 20 k-60-65-70-75-80-85-90-95-100-105-110CRD429~1\99-1DAM.ADXFrequency (Hz)THD+N
CRD4299-1 AMRDS319RD1A1 156. REFERENCES1) Intel, Audio Codec ‘97 Component Specification, Revision 2.1, http://developer.intel.com/pc-supp/platform/a
CRD4299-1 AMR16 DS319RD1A17. SCHEMATIC, LAYOUT, AND BRACKET DRAWINGS AUDIO_INVIDEO_RVIDEO_LAUX_INRAUX_INLCD_INRCD_INLCD_COMLI
CRD4299-1 AMRDS319RD1A1 17AMR BUSpopulate R51 ifprimary codec.populate R50 ifsecondary codec.populate R2 for CS4299 boardpopulate R3 forCS4297 board+1
CRD4299-1 AMR18 DS319RD1A1POWER SUPPLIESConnect AGND to DGND with a 50 mil trace near the 4297Connect CGND to DGND with a 50 mil trace near the finger
CRD4299-1 AMRDS319RD1A1 19Do not populateC62 and C63 forCS4297.Do not populateR45layout Y1 on top of Y2 --populate only one XTALDo not populateR48MONO
CRD4299-1 AMR2 DS319RD1A1TABLE OF CONTENTS1. GENERAL INFORMATION ... 42. R
CRD4299-1 AMR20 DS319RD1A1MONO OUTPHONE INGNDGNDINTERNAL MODEM CONNECTIONDo notpopulate R52PC SPEAKER INCD INLGNDGNDRConnect CGND to AGND at the jackL
CRD4299-1 AMRDS319RD1A1 21place close topins 8 and 4Connect CGNDto the jackCGND+5VAAGNDAGND+5VA+5VAAGNDAGND+5VAAGNDAGNDAGNDAGNDR2668K+C3710uFELECC34 1
CRD4299-1 AMR22 DS319RD1A1HEADPHONE JACKLINE OUTJACKConnect CGND toAGND at thejackConnect CGND toAGND at thejackDigital OutputCGNDAGNDCGNDAGNDAGND+12V
CRD4299-1 AMRDS319RD1A1 23Figure 18. Assembly Drawing
CRD4299-1 AMR24 DS319RD1A1Figure 19. Top Layer
CRD4299-1 AMRDS319RD1A1 25Figure 20. Bottom Layer
CRD4299-1 AMR26 DS319RD1A1Figure 21. Bracket Drawing
CRD4299-1 AMRDS319RD1A1 278. BILL OF MATERIALSCRD4299-AMR Item Qty Reference Value Type PCB Footprint Mnfr Part Number Description1 9 C1,C3,C31,C37,C
CRD4299-1 AMR28 DS319RD1A123 3 R28,R43,R44 100K RES RES_0805 PHILIPS 9C08052A1003J RES, SO, 0805, 100K, 5%, 1/10W, METAL FILM24 1 R31 4.7K RES RES_080
• Notes •
CRD4299-1 AMRDS319RD1A1 3LIST OF FIGURESFigure 1. Full Duplex (A-D-PC-D-A): Line In/Out Frequency Response ... 10Fi
CRD4299-1 AMR4 DS319RD1A11. GENERAL INFORMATIONThe CRD4299-1 AMR is a production-gradeAMR audio card reference design using theCS4299 SoundFusion Aud
CRD4299-1 AMRDS319RD1A1 5MC78L05 regulates the AMR +12 V supply downto provide a clean +5 V analog supply for theCS4299. The MC78L05 regulator can pro
CRD4299-1 AMR6 DS319RD1A1- Pin 3 : Common return- Pin 4 : Right Channel2.4.6 Aux In• Internal 4-pin (0.1 inch center) right-angledconnector•Wir
CRD4299-1 AMRDS319RD1A1 7down to a clean +5 V analog supply. Two packag-ing options are supported, where U5 is an SO8 sur-face mount package and U4 is
CRD4299-1 AMR8 DS319RD1A13.8 Component SelectionGreat attention was given to the particular compo-nents on the CRD4299-1 AMR board with cost,performa
CRD4299-1 AMRDS319RD1A1 9 Signal Name Connector Maximum Voltage Reference DesignatorImp. (kΩ)Line In (A-D-PC-D-A) Jack 2.376 VRMS0 dB
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