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WM5110
Low Power Audio System with Wolfson myZone™
Ambient Noise Cancellation and Echo Cancellation
DESCRIPTION
The WM5110 is a highly-integrated low-power audio system
for smartphones, tablets and other portable audio devices. It
combines an advanced DSP feature set with a flexible, high-
performance audio hub CODEC.
The WM5110 digital core combines a quad-core, 600MMAC
DSP system with a variety of power-efficient fixed-function
audio processing blocks. The programmable DSP cores
support advanced audio features, including multi-mic
wideband noise reduction and beamforming, high-
performance acoustic echo cancellation (AEC), stereo
ambient noise cancellation (ANC), speech enhancement,
advanced media enhancement, and many more. The DSP
cores are supported by a fully-flexible, all-digital mixing and
routing engine with sample rate converters, for wide use-
case flexibility.
A SLIMbus interface supports multi-channel audio paths and
host control register access. Multiple sample rates are
supported concurrently via the SLIMbus interface. Three
further digital audio interfaces are provided, each supporting
a wide range of standard audio sample rates and serial
interface formats. Automatic sample rate detection enables
seamless wideband/narrowband voice call handover.
Three stereo headphone drivers each provide stereo
ground-referenced or mono BTL outputs. 110dB SNR, and
noise levels as low as 2μVRMS, offer hi-fi quality line or
headphone output. High power, high-quality speaker output
is provided by a stereo pair of 2W Class-D speaker
amplifiers. Four channels of stereo PDM output are
provided, for connection to external amplifiers.
The WM5110 supports up to eight microphone inputs, (up to
six analogue, or up to eight PDM digital, or combinations of
each). Microphone activity detection with interrupt is
available. A smart accessory interface supports most
standard 3.5mm accessories. Impedance sensing and
measurement is provided for external accessory and push-
button detection.
The WM5110 power, clocking and output driver
architectures are all designed to maximise battery life in
voice, music and standby modes. The chip can be powered
from a 1.8V external supply. (For full device functionality, a
1.2V digital core supply and a 4.2V Class D speaker driver
supply are recommended.)
Two integrated FLLs provide support for a wide range of
system clock frequencies. The WM5110 is configured using
the I2C, SPI or SLIMbus interfaces. The fully-differential
internal analogue architecture, minimal analogue signal
paths and on-chip RF noise filters ensure a very high degree
of noise immunity.
FEATURES
600 MIPS, 600MMAC multi-core audio-signal processor
Programmable wideband, multi-mic audio processing
- myZoneTM stereo adaptive ambient noise cancellation
- Transmit-path noise reduction and echo cancellation
- Microphone beam-forming
- Wind noise, sidetone and other programmable filters
- Dynamic Range Control, Fully parametric EQs
- Multiband Compression, Virtual Surround Sound
Multi-channel asynchronous sample rate conversion
Integrated 6/8 channel 24-bit hi-fi audio hub CODEC
- 6 ADCs, 100dB SNR microphone input (48kHz)
- 8 DACs, 110dB SNR headphone playback (48kHz)
Audio inputs
- Up to 6 analogue or 8 digital microphone inputs
- Single-ended or differential mic/line inputs
Multi-purpose headphone / earpiece / line output drivers
- 3 stereo output paths
- 33mW into 32load at 1% THD+N
- 100mW into 16BTL load at 5% THD+N
- 3mW typical headphone playback power consumption
- Pop suppression functions
- 2µVRMS noise floor (A-weighted)
2 x 2W stereo Class D speaker output drivers
Four-channel digital speaker (PDM) interface
SLIMbus® audio and control 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
Flexible clocking, derived from MCLKn, BCLKn or SLIMbus
2 low-power FLLs support reference clocks down to 32kHz
Advanced accessory detection functions
- Low-power standby mode
- ‘Switchable ground’ support for different headset types
Configurable functions on 5 GPIO pins
Integrated LDO regulators and charge pumps
Small W-CSP package, 0.4mm pitch
APPLICATIONS
Smartphones and Multimedia handsets
Tablets and Mobile Internet Devices (MID)
General-purpose low-power audio CODEC hub
WOLFSON MICROELECTRONICS plc
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Product Brief May 2012, Rev 1.1
Copyright 2012 Wolfson Microelectronics plc

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WM5110
BLOCK DIAGRAM
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Product Brief, May 2012, Rev 1.1
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WM5110
TABLE OF CONTENTS
DESCRIPTION....................................................................................................... 1 
FEATURES ............................................................................................................ 1 
APPLICATIONS..................................................................................................... 1 
BLOCK DIAGRAM ................................................................................................ 2 
TABLE OF CONTENTS......................................................................................... 3 
PIN CONFIGURATION .......................................................................................... 4 
ORDERING INFORMATION.................................................................................. 5 
PIN DESCRIPTION................................................................................................ 5 
ABSOLUTE MAXIMUM RATINGS ........................................................................ 8 
RECOMMENDED OPERATING CONDITIONS..................................................... 9 
ELECTRICAL CHARACTERISTICS ................................................................... 10 
TERMINOLOGY ............................................................................................................. 20 
DEVICE DESCRIPTION ...................................................................................... 21 
INTRODUCTION ............................................................................................................ 21 
HI-FI AUDIO CODEC ..................................................................................................... 21 
DIGITAL AUDIO CORE.................................................................................................. 22 
DIGITAL INTERFACES.................................................................................................. 23 
OTHER FEATURES....................................................................................................... 23 
RECOMMENDED EXTERNAL COMPONENTS.................................................. 24 
PACKAGE DIMENSIONS.................................................................................... 25 
IMPORTANT NOTICE ......................................................................................... 26 
ADDRESS: ..................................................................................................................... 26 
REVISION HISTORY ........................................................................................... 27 
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PIN CONFIGURATION
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ORDERING INFORMATION
ORDER CODE
WM5110ECS/R
TEMPERATURE
RANGE
-40C to +85C
Note:
Reel quantity = 5000
PACKAGE
W-CSP
(Pb-free, Tape and reel)
MOISTURE
SENSITIVITY LEVEL
MSL1
WM5110
PEAK SOLDERING
TEMPERATURE
260C
PIN DESCRIPTION
A description of each pin on the WM5110 is provided below.
Note that, where multiple pins share a common name, these pins should be tied together on the PCB.
PIN NO
E2
D13
K11
J10
K9
H8
L14
J12
J13
J11
L7
H4
K7
H5
E1
C14
H6
H7
G4
K10
H9
L12
K12
C5
C6
B6
A6
C7
B8
A7
B7
D7
D6
D5
B5
NAME
AGND1
AGND2
AIF1BCLK
AIF1RXDAT
AIF1LRCLK
AIF1TXDAT
AIF2BCLK
AIF2RXDAT
AIF2LRCLK
AIF2TXDAT
AIF3BCLK
AIF3RXDAT
AIF3LRCLK
AIF3TXDAT
AVDD1
AVDD2
CIF1ADDR/
C¯¯IF¯1¯S¯S¯
CIF1MISO/
GPIO4
CIF1MODE
CIF1SCLK
CIF1SDA/
CIF1MOSI
CIF2SCLK
CIF2SDA
CP1C1A
CP1C1B
CP1C2A
CP1C2B
CP1VOUT1N
CP1VOUT1P
CP1VOUT2N
CP1VOUT2P
CP2CA
CP2CB
CP2VOUT
CPGND
TYPE
Supply
Supply
Digital Input / Output
Digital Input
Digital Input / Output
Digital Output
Digital Input / Output
Digital Input
Digital Input / Output
Digital Output
Digital Input / Output
Digital Input
Digital Input / Output
Digital Output
Supply
Supply
Digital Input
Digital Input / Output
Digital Input
Digital Input
Digital Input / Output
Digital Input
Digital Input / Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Supply
DESCRIPTION
Analogue ground (Return path for AVDD1)
Analogue ground (Return path for AVDD2)
Audio interface 1 bit clock
Audio interface 1 RX digital audio data
Audio interface 1 left / right clock
Audio interface 1 TX digital audio data
Audio interface 2 bit clock
Audio interface 2 RX digital audio data
Audio interface 2 left / right clock
Audio interface 2 TX digital audio data
Audio interface 3 bit clock
Audio interface 3 RXdigital audio data
Audio interface 3 left / right clock
Audio interface 3 TX digital audio data
Analogue supply
Analogue supply
Control interface 1 (I2C) address select /
Control interface 1 (SPI) Slave Select (SS)
Control interface 1 Master In Slave Out data /
General Purpose pin GPIO4
Control interface 1 mode select input
Control interface 1 clock input
Control interface 1 (I2C) data input and output /
Control interface 1 (SPI) Master Out Slave In data
Control interface 2 clock input
Control interface 2 data input and output / acknowledge output
Charge pump 1 fly-back capacitor 1 pin
Charge pump 1 fly-back capacitor 1 pin
Charge pump 1 fly-back capacitor 2 pin
Charge pump 1 fly-back capacitor 2 pin
Charge pump 1 negative output 1 decoupling pin
Charge pump 1 positive output 1 decoupling pin
Charge pump 1 negative output 2 decoupling pin
Charge pump 1 positive output 2 decoupling pin
Charge pump 2 fly-back capacitor pin
Charge pump 2 fly-back capacitor pin
Charge pump 2 output decoupling pin / Supply for LDO2
Charge pump 1 & 2 ground (Return path for CPVDD)
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