WM8941GEFL/RV, WM8941GEFL/V, WM8950 Selling Leads, Datasheet
MFG:WOLFSON Package Cooled:QFN D/C:2007
WM8941GEFL/RV, WM8941GEFL/V, WM8950 Datasheet download
Part Number: WM8941GEFL/RV
MFG: WOLFSON
Package Cooled: QFN
D/C: 2007
WM8941GEFL/RV, WM8941GEFL/V, WM8950
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Info of WM8941GEFL/RV
Info of WM8941GEFL/V
Info of WM8950
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About WM8012CD
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Datasheet: WM8012CD
File Size: 86929 KB
Manufacturer:
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About WM8012CD
PDF/DataSheet Download
Datasheet: WM8012CD
File Size: 86929 KB
Manufacturer:
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About WM8950
PDF/DataSheet Download
Datasheet: WM8950
File Size: 685241 KB
Manufacturer: WOLFSON [Wolfson Microelectronics plc]
Download : Click here to Download
WM8950 General Description
The WM8950 is a low power, high quality mono ADC designed for portable applications such as Digital Still Camera, Digital Voice Recorder or games console accessories.
The device integrates support for a differential or single ended mic. External component requirements are reduced as no separate microphone amplifiers are required.
Advanced Sigma Delta Converters are used along with digital decimation filters to give high quality audio at sample rates from 8 to 48ks/s. Additional digital filtering options are available, to cater for application filtering such as wind noise reduction, noise rejection, 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 WM8950 operates at supply voltages from 2.5 to 3.6V,although the digital supplies can operate at voltages down to 1.71V to save power. Different sections of the chip can also be powered down under software control by way of the selectable two or three wire control interface.
WM8950 is supplied in a very small 4x4mm QFN package,offering high levels of functionality in minimum board area,with high thermal performance.
WM8950 Maximum Ratings
| CONDITION | MIN | MAX |
| DBVDD, DCVDD, AVDD, AVDD2 supply voltages | -0.3V | +4.2 |
| Voltage range digital inputs | DGND -0.3V | DBVDD +0.3V |
| Voltage range analogue inputs | AGND -0.3V | AVDD +0.3V |
| Voltage range LACIN, RACIN, LACOUT, RACOUT, MICBIAS | AGND -0.3V | MVDD +0.3V |
| Operating temperature range, TA | -25oC | +85oC |
| Storage temperature prior to soldering | 30°C max / 85% RH max | |
| Storage temperature (TQFP package only) | -65oC | +150oC |
WM8950 Features
• Mono ADC:
• Audio sample rates:8, 11.025, 16, 22.05, 24, 32, 44.1, 48kHz
• SNR 95dB, THD -85dB ('A'-weighted @ 8 48ks/s)
• Multiple auxiliary analog inputs
• Mic Preamps:
• Differential or single end Microphone Interface- Programmable preamp gain- Psuedo differential inputs with common mode rejection- Programmable ALC / Noise Gate in ADC path
• Low-noise bias supplied for electret microphones
• Audio sample rates:8, 11.025, 16, 22.05, 24, 32, 44.1, 48kHz
• SNR 95dB, THD -85dB ('A'-weighted @ 8 48ks/s)
• Multiple auxiliary analog inputs
• Mic Preamps:
• Differential or single end Microphone Interface- Programmable preamp gain- Psuedo differential inputs with common mode rejection- Programmable ALC / Noise Gate in ADC path
• Low-noise bias supplied for electret microphones
WM8950 Typical Application
• Digital Still Camera
• General Purpose low power audio ADC
• Games console accessories
• Voice recorders
• General Purpose low power audio ADC
• Games console accessories
• Voice recorders
WM8950 Connection Diagram
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