skyworks的COBRA电路原理图

COBRA-REFERENCE DESIGN 5

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Revision History Table Of Contents Page Page Page Page Page Page Page Page 01: 02: 03: 04: 05: 06: 07: 08: Table of Contents and Revision History RF and MSD Baseband and memory Memory and FM Connectors Camera and LCM Keypad and Audio Bluetooth
Rev 00 Date 08/04/05 08/08/05 Sheet Change Description Initial Release
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08/09/05

Antana match circuit revised. Add supply option to VDD2_ANLG (LU JUN) Add pull-up/down option to XBOOT, TESTM[2:0] Add buffer to BB_LOW_CLK supply to FM radio Add DNI resistor between pin4 RSVD of 77331 and Vbat Buck control circuit changed acording to Lu Jun's mail Add IRDA Revise SAW203 P/N to B7851, SAW204 P/N to B7852 for better performance.(By Li Hui) Revise the crystal OSC201 Pin2, Pin4 connection. According to the DSX321G26MHz datasheet, the P