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WM7230 Datasheet(PDF) 12 Page - Wolfson Microelectronics plc |
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WM7230 Datasheet(HTML) 12 Page - Wolfson Microelectronics plc |
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12 / 12 page  WM7230 Preliminary Technical Data w PTD, Rev 2.4, October 2012 12 REVISION HISTORY DATE REV ORIGINATOR CHANGES 20/10/10 1.0/2.0 PH Front page description and features re-worded. Description of LRSEL pin updated. Electrical Characteristics re-ordered, and terminology updated. Microphone interface timing drawing and descriptions updated. Frequency response graph added. Illustration of recommended external components replaced with text. Connection to Wolfson CODEC text and illustration updated. Recommended PCB land patterns moved to Applications Information. 26/10/10 1.0/2.0 JMacD Package Diagram DM089.D added 23/11/10 CST Specification of FSR corrected. Specification for THD corrected Time to data valid changed to minimum Grammatical errors 28/01/11 2.0 JMacD Reel quantity added to order information 01/05/11 2.1 JMacD Updated the LRSEL pin description , Timing diagram and notes for the rising and falling clock edges. Sleep mode current updated to 2uA Updated the reel quantity Updated the start up time Updated the new freq response and THD curves Updated +3dB frequency cut off Updated VDD to 1.64V 06/09/11 2.1 JMacD Package Diagram updated to DM089.E. References and dimension letters changed to be consistent with all mems package diagrams. Lid dimensions updated. Swapped dimensions L and E. Added marking area boundary 16/12/11 2.2 KC Introduced E variant with sensitivity +/-1dB Added E variant ordering info Added voltage range digital input Updated the CODEC to WM8994 Added Reference to WAN_0273 22/06/12 2.3 MR/JMacD Dynamic Range added, p5 Active mode current changed to 700uA, p1 and p5 CLK cycle time min and max updated, p6 Package Diagram updated to DM089F 08/10/12 2.4 JMacD Optimised System RF Design added. |
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