wm8904 Wolfson Microelectronics plc, wm8904 Datasheet
wm8904
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wm8904 Summary of contents
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... Ultra Low Power CODEC for Portable Audio Applications DESCRIPTION The WM8904 is a high performance ultra-low power stereo CODEC optimised for portable audio applications. The device features stereo ground-referenced headphone amplifiers using the Wolfson ‘Class-W’ amplifier techniques - incorporating an innovative dual-mode charge pump architecture - to optimise efficiency and power consumption during playback ...
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... X IN3L* DIGITAL MIC INTERFACE IN1R/DMICDAT2 M IN2R PGA U 1µF X IN3R* MICBIAS VMID CONTROL Reference INTERFACE MICVDD w WM8904 DYNAMIC RANGE CONTROLLER ADC DAC (DRC) 5-BAND EQUALISER DIGITAL MONO MIX DIGITAL SIDE TONE MIXING ADC DAC DIGITAL VOLUME CONTROL AUDIO FLL / INTERFACE CLOCK ...
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... Pre-Production PIN CONFIGURATION The WM8904 is supplied in a 32-pin QFN package 36-ball CSP format. The diagram below shows the 32-pin QFN configuration. The following diagram shows the 36-ball CSP configuration. w WM8904 Product Brief, Rev 3.0, February 2010 3 ...
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... WM8904 ORDERING INFORMATION TEMPERATURE DEVICE RANGE WM8904GEFL/V -40°C to +85°C WM8904GEFL/RV -40°C to +85°C WM8904ECS/R -40°C to +85°C Note: Reel quantity = 3,500 w PACKAGE 32-lead QFN (4x4x0.4mm, lead-free) 32-lead QFN (4x4x0.4mm, lead-free, tape and reel) 36-ball W-CSP (6x6 ball grid, 0.4mm, lead-free, tape and reel) ...
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... Digital Input 3 Digital Input / Output 1 Digital Input / Output n/a Digital Input / Output n/a Digital Input / Output 33 WM8904 DESCRIPTION Left channel input 1 / Digital microphone data input 1 Left channel input 2 Left channel input 3 Right channel input 1 / Digital microphone data input 2 Right channel input 2 Right channel input 3 ...
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... All digital and analogue supplies are completely independent from each other; there is no restriction on power supply sequencing. 3. HPOUTL, HPOUTR, LINEOUTL, LINEOUTR are outputs, and should not normally become connected to DC levels. However, if the limits above are exceeded, then damage to the WM8904 may occur. RECOMMENDED OPERATING CONDITIONS PARAMETER Digital supply range (Core) ...
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... THIS DRAWING IS SUBJECT TO CHANGE WITHOUT NOTICE. 7. FOLLOWS JEDEC DESIGN GUIDE MO-211-C. w 2.515 0.7mm BODY, 0.40 mm BALL PITCH X X DETAIL CORNER 0. DETAIL 2 MAX NOTE 0.785 0.235 0.445 5 0.105 DM066 TOP VIEW 0. Product Brief, Rev 3.0, February 2010 WM8904 E 7 ...
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... WM8904 The 32-pin QFN package drawing is shown below. FL: 32 PIN QFN PLASTIC PACKAGE EXPOSED 6 GROUND PADDLE BOTTOM VIEW A3 C SIDE VIEW SEATING PLANE A3 b Exposed lead Dimensions (mm) Symbols MIN NOM 0. 0.035 A3 0.203 REF b 0.15 0.2 D 4.00 BSC 2 ...
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... Wolfson is not liable for any such representations, warranties or liabilities or for any reliance placed thereon by any person. ADDRESS Wolfson Microelectronics plc Westfield House 26 Westfield Road Edinburgh EH11 2QB Tel :: +44 (0)131 272 7000 Fax :: +44 (0)131 272 7001 Email :: sales@wolfsonmicro.com w WM8904 Product Brief, Rev 3.0, February 2010 9 ...