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Wolfson Microelectronics

WM5100 Datasheet Preview

WM5100 Datasheet

Low Power Audio System

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WM5100
Low Power Audio System with Wolfson myZone™
Ambient Noise Cancellation and Echo Cancellation
DESCRIPTION
The WM5100 is a highly-integrated low-power audio system
with exceptional levels of performance and signal
processing capability. Digital effects, noise reduction,
speech clarity and Ambient Noise Cancellation (ANC)
algorithms are all supported, suitable for a wide variety of
mobile and handheld devices.
The Wolfson myZone™ technology supports receive (RX)
path and transmit (TX) path noise cancellation. Acoustic
Echo Cancellation (AEC) algorithms are also supported. The
WM5100 is ideal for mobile telephony applications,
providing enhanced voice communication quality for near-
end and far-end handset users.
The WM5100 digital core provides extensive capability for
programmable signal processing algorithms. Equalisation
and application-specific filters can be implemented,
including digital effects to improve audibility and stereo
imaging in small size loudspeakers. Highly flexible digital
mixing, including multi-channel sample rate conversion
between asynchronous clocking domains, provides use-
case flexibility across a broad range of system architectures.
Three independent digital audio interfaces are provided,
each supporting a wide range of standard audio sample
rates.
The integrated headphone drivers provide 3 stereo ground-
referenced outputs. These can also be configured in mono
differential (BTL) configuration. Noise levels as low as
3.2μVRMS provide hi-fi quality output. Speakerphone
applications can be supported using the Class D speaker
driver or the integrated digital speaker (PDM) interface with
an external PDM-input speaker amplifier.
The WM5100 supports up to eight analogue or digital
microphone inputs. The Wolfson myZoneTM ANC processor
implements an enhanced filtering algorithm to consistently
deliver the optimum noise cancellation performance using
two or more microphone input channels. A smart digital
microphone interface provides power regulation, low jitter
clock output and decimation filters for digital microphones.
Microphone activity detection with interrupt is available.
Impedance sensing and measurement is provided for
external accessory and push-button detection.
The WM5100 is powered from a 1.8V external supply. A
supply is also required for the Class D speaker drivers
(typically 4.2V). Two integrated FLLs provide support for a
wide range of system clock frequencies. The WM5100 is
configured using a standard 2-wire serial control interface.
Fully differential internal architecture and on-chip RF noise
filters ensure a very high degree of noise immunity.
FEATURES
Programmable DSP and Noise Cancellation functions
- Wolfson myZoneTM adaptive ambient noise cancellation
- Transmit-path noise reduction and echo cancellation
- Wind noise, sidetone and other programmable filters
- Audio enhancements and voice processing functions
Audio inputs
- Up to 8 analogue or digital microphone inputs
- Single-ended or differential analogue microphone input
- Line input support (single-ended or differential)
Multi-purpose headphone / earpiece / line output drivers
- 3 stereo output paths
- Integrated Charge Pump for ground referenced output
- Mono differential (BTL) drive option on each output
- Pop suppression functions
- 30mW into 32load at 1% THD+N
- 3.2μVRMS noise floor (A-weighted)
- 4mW headphone playback power consumption
2 x 2W stereo Class D speaker output drivers
Four-channel digital speaker (PDM) interface
3 full digital audio interfaces
- Standard sample rates from 4kHz up to 768kHz
- Ultrasonic accessory function support
- TDM support on all AIFs
- 8 channel input and output on AIF1
Multi-channel sample rate conversion
- Allows digital audio to be routed between different sample
rates and between different clock reference domains
Flexible system clocking
- External clocking from 2 MCLK inputs or AIF BCLK
- Dual FLLs support wide range of input clock reference
frequencies, including down to 32kHz
Configurable functions on 6 GPIO pins
Advanced accessory detection functions
- Up to 6 push-button accessory inputs
- ‘Switchable ground’ support for different headset types
Integrated power management
- Two Charge Pumps and 2 LDO Regulators
- Support for single 1.8V supply operation
155-ball W-CSP package
- 7.259 x 6.190 x 0.553mm, 0.4mm pitch
APPLICATIONS
Smartphones
Feature phones
Tablets
Portable Media Players (PMP)
WOLFSON MICROELECTRONICS plc
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews
Product Preview, July 2011, Rev 1.0
Copyright ©2011 Wolfson Microelectronics plc
Datasheet pdf - http://www.DataSheet4U.net/




Wolfson Microelectronics

WM5100 Datasheet Preview

WM5100 Datasheet

Low Power Audio System

No Preview Available !

www.DataSheet.co.kr
WM5100
BLOCK DIAGRAM
Product Brief
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PP, July 2011, Rev 1.0
2
Datasheet pdf - http://www.DataSheet4U.net/


Part Number WM5100
Description Low Power Audio System
Maker Wolfson Microelectronics
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WM5100 Datasheet PDF






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