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Details, datasheet, quote on part number: WM1811
 
 
Part numberWM1811
Category
TitleMulti-Channel Audio Hub CODEC for Smartphones
DescriptionThe WM1811 is a highly integrated ultra-low power hi-fi CODEC designed for smartphones and other portable devices rich in multimedia features.

An integrated stereo class D speaker driver and class W headphone driver minimize power consumption during audio playback.

The device requires only two voltage supplies, with all other internal supply rails generated from integrated LDOs.

Stereo full duplex asynchronous sample rate conversion and multi-channel digital mixing combined with powerful analogue mixing allow the device to support a huge range of different architectures and use cases.

A programmable parametric EQ provides speaker compensation in the digital playback paths. The dynamic range controller can be used in record or playback paths for maintaining a constant signal level, maximizing loudness and protecting speakers against overloading and clipping.

A smart digital microphone interface provides power regulation, a low jitter clock output and decimation filters for up to two digital microphones. Microphone activity detection with interrupt is available. Impedance sensing and measurement is provided for external accessory / push-button detection.

Fully differential internal architecture and on-chip RF noise filters ensure a very high degree of noise immunity. Active ground loop noise rejection and DC offset correction help prevent pop noise and suppress ground noise on the headphone outputs.
CompanyWolfson Microelectronics Ltd.
DatasheetDownload WM1811 datasheet
Request For QuoteFind where to buy WM1811
 


 
Specifications, Features, Applications
DESCRIPTION

The is a highly integrated ultra-low power hi-fi CODEC designed for smartphones and other portable devices rich in multimedia features. An integrated stereo class D speaker driver and class W headphone driver minimize power consumption during audio playback. The device requires only two voltage supplies, with all other internal supply rails generated from integrated LDOs. Stereo full duplex asynchronous sample rate conversion and multi-channel digital mixing combined with powerful analogue mixing allow the device to support a huge range of different architectures and use cases. A programmable parametric EQ provides speaker compensation in the digital playback paths. The dynamic range controller can be used in record or playback paths for maintaining a constant signal level, maximizing loudness and protecting speakers against overloading and clipping. A smart digital microphone interface provides power regulation, a low jitter clock output and decimation filters for up to two digital microphones. Microphone activity detection with interrupt is available. Impedance sensing and measurement is provided for external accessory / push-button detection. Fully differential internal architecture and on-chip RF noise filters ensure a very high degree of noise immunity. Active ground loop noise rejection and DC offset correction help prevent pop noise and suppress ground noise on the headphone outputs.

FEATURES

24-bit 2-channel Hi-Fi DAC and 2-channel Hi-Fi ADC 100dB SNR during DAC playback (`A' weighted) Smart MIC interface - Power, clocking and data input for up to two digital MICs - High performance analogue MIC interface - MIC activity detect & interrupt allows processor to sleep - Impedance sensing for accessory / push-button detection 2W stereo x 2W) class D speaker driver Capless Class W headphone drivers - Integrated charge pump - 5.3mW total power for DAC playback to headphones 4 Line outputs (single-ended or differential) BTL Earpiece driver Digital audio interfaces for multi-processor architecture - Asynchronous stereo duplex sample rate conversion - Powerful mixing and digital loopback functions TM ReTune Mobile 5-band, 4-channel parametric EQ Dynamic range controller Dual FLL provides all necessary clocks - Self-clocking modes allow processor to sleep - All standard sample rates from to 96kHz Active noise reduction circuits - DC offset correction removes pops and clicks - Ground loop noise cancellation Integrated LDO regulators 80-ball W-CSP package x 0.596mm)

APPLICATIONS
Smartphones and music phones Portable navigation Tablets eBooks Portable Media Players
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ORDER CODE TEMPERATURE RANGE to +85C PACKAGE 80-ball W-CSP (Pb-free, Tape and reel) MOISTURE SENSITIVITY LEVEL MSL1 PEAK SOLDERING TEMPERATURE 260C




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