WM8973LGEFL/RV, WM8974, WM8974G Selling Leads, Datasheet
MFG:WM Package Cooled:QFN D/C:04+
WM8973LGEFL/RV, WM8974, WM8974G Datasheet download
Part Number: WM8973LGEFL/RV
MFG: WM
Package Cooled: QFN
D/C: 04+
MFG:WM Package Cooled:QFN D/C:04+
WM8973LGEFL/RV, WM8974, WM8974G Datasheet download
MFG: WM
Package Cooled: QFN
D/C: 04+
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PDF/DataSheet Download
Datasheet: WM8973LGEFL/RV
File Size: 655134 KB
Manufacturer: WOLFSON [Wolfson Microelectronics plc]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: WM8974
File Size: 814626 KB
Manufacturer: WOLFSON [Wolfson Microelectronics plc]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: WM8974GEFL
File Size: 814626 KB
Manufacturer: WOLFSON [Wolfson Microelectronics plc]
Download : Click here to Download
The WM8974 is a low power, high quality mono codec designed for portable applications such as Digital Still Camera or Digital Voice Recorder.
The device integrates support for a differential or single ended mic, and includes drivers for speakers or headphone, and mono line output. External component requirements are reduced as no separate microphone or headphone amplifiers are required.
Advanced Sigma Delta Converters are used along with digital decimation and interpolation filters to give high quality audio at sample rates from 8 to 48ks/s. Additional digital filtering options are available in the ADC path, to cater for application filtering such as 'wind noise reduction', plus an advanced mixed signal ALC function with noise gate is provided.An on-chip PLL is provided to generate the required Master Clock from an external reference clock. The PLL clock can also be output if required elsewhere in the system.
The WM8974 operates at supply voltages from 2.5 to 3.6V,although the digital core can operate at voltages down to 1.62V to save power. The speaker and mono outputs use a separate supply of up to 5V which enables increased output power if required. Different sections of the chip can also be powered down under software control by way of the selectable two or three wire control interface.
WM8974 is supplied in a very small 4x4mm QFN package,offering high levels of functionality in minimum board area,with high thermal performance.
CONDITION | MIN | MAX |
DBVDD, DCVDD, AVDD supply voltages | -0.3V | +3.63V |
SPKRVDD supply voltage | -0.3V | +7V |
Voltage range digital inputs | DGND -0.3V | DVDD +0.3V |
Voltage range analogue inputs | AGND -0.3V | AVDD +0.3V |
Operating temperature range, TA | -25°C | +85°C |
Storage temperature prior to soldering | 30°C max / 85% RH max | |
Storage temperature after soldering | -65°C | +150°C |