(China (Mainland))
Product Summary
The WM9705 is a high-quality stereo audio codec with an integrated touch screen controller. The audio section is compliant with the Intel AC’97 Rev 2.2 specification. The WM9705 performs full-duplex 18-bit codec functions and supports variable sample rates from 8 to 48k samples/s with high signal to noise ratio. Optional AC’97 features include 3D sound enhancement, line-level outputs, stereo buffered headphone outputs, hardware sample rate conversion, primary/secondary mode operation and S/PDIF output. Headphone auto-detect, I2S output and headphone buffer on the mono output are included. The WM9705 is suitable for Personal Digital Assistants and Smartphones and PocketPC systems.
Parametrics
WM9705 absolute maximum ratings: (1)Digital supply voltage: -0.3V to +7V; (2)Analogue supply voltage: -0.3V to +7V; (3)Voltage range digital inputs: DVSS -0.3V to DVDD +0.3V; (4)Voltage range analogue inputs: AVDD -0.3V to AVDD +0.3V; (5)Operating temperature range, TA: -25 to +85℃; (6)Storage temperature after soldering: -65 to +150℃; (7)Package body temperature (soldering 10 seconds): +240℃; (8)Package body temperature (soldering 2 minutes): +183℃.
Features
WM9705 features: (1)AC’97 rev2.2 compliant codec with pen digitiser; (2)18-bit stereo audio codecs; (3)On-chip sample rate conversion; (4)Multiple channel input mixer; (5)S/PDIF digital audio output; (6)Headphone drivers on AUX and MONO outputs; (7)4-wire touch screen interface with co-ordinate and pressure measurement, and pen-down detection; (8)Wake-up from sleep mode on pen down; (9)3V to 5V operation; (10)Extensive power management features including hardware power down option; (11)Standard AC’97 pinout in 48-pin TQFP package or 48-pin QFN package.
Diagrams
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 WM9705 |
Other |
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Data Sheet |
Negotiable |
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WM9705SEFL/RV |
Wolfson Microelectronics |
Audio CODECs STR AC'97 CODEC T/P Interface 48-pin |
Data Sheet |
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WM9705SEFT/V |
Wolfson Microelectronics |
Audio CODECs Stereo AC'97 Codec T/P Interface |
Data Sheet |
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WM9705SEFL/V |
Wolfson Microelectronics |
Audio CODECs Stereo AC'97 CODEC T/P Interface |
Data Sheet |
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WM9705SEFT/RV |
Wolfson Microelectronics |
Audio CODECs Stereo AC'97 Codec T/P Interface |
Data Sheet |
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