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What is WM9010?

This electronic component, produced by the manufacturer "Wolfson Microelectronics", performs the same function as "Class G Stereo Headphone Driver".


WM9010 Datasheet PDF - Wolfson Microelectronics

Part Number WM9010
Description Class G Stereo Headphone Driver
Manufacturers Wolfson Microelectronics 
Logo Wolfson Microelectronics Logo 


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WM9010
Low Power, Class G Stereo Headphone Driver
DESCRIPTION
FEATURES
The WM9010 is a low power stereo headphone driver designed
for mobile handset and portable media player (PMP)
applications. Class G amplifier technology is used to achieve
high power efficiency and low quiescent current.
Stereo analogue inputs accept 1Vrms line level inputs; the Hi-Fi
output drivers deliver up to 28mW into a 32load.
An integrated charge pump circuit generates split-rail voltage
supplies to power the ground-referenced headphone driver.
The WM9010 incorporates Wolfson Silent Switch™ technology
to provide pop and click suppression whenever the WM9010 is
enabled or disabled.
The WM9010 is supplied in a 12-pin CSP package.
Hi-fi audio headphone drivers (104dB SNR - ‘A’ weighted)
Stereo analogue audio inputs
Ground-referenced, cap-less headphone outputs
Integrated charge pump and oscillator circuits
Low quiescent current
RF noise suppression
Pop and click suppression
12-pin CSP package (1.84 x 1.34 x 0.7mm)
APPLICATIONS
Mobile Handsets
Portable Media Players (PMP)
Notebooks / Laptop computers
LCD televisions
ENA
GND
VDD
RF noise
suppression
Pop and click
suppression
INL
INR
INREF
-
+
-
+
HPOUTL
HPOUTR
Oscillator
WM9010
Charge Pump
WOLFSON MICROELECTRONICS plc
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews
Production Data, February 2011, Rev 4.0
Copyright ©2011 Wolfson Microelectronics plc

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WM9010 equivalent
Production Data
WM9010
ELECTRICAL CHARACTERISTICS
Test Conditions
VDD = 1.8V, INREF = GND = 0V, Load resistance = 16Ω, TA = +25oC, 1kHz signal unless otherwise stated.
PARAMETER
SYMBOL
Analogue Inputs (INL, INR)
Maximum input signal
level
Input resistance
Input capacitance
TEST CONDITIONS
Single-ended input
MIN TYP
VDD/1.8
15 20
3
MAX
25
UNIT
Vrms
kΩ
pF
Headphone Output Path (HPOUTL, HPOUTR)
Output Power
PO RL = 32Ω; THD+N = 0.1%
RL = 32Ω; THD+N = 1%
27 mW
28
RL = 16Ω; THD+N = 0.1%
32
Signal to Noise ratio
SNR
RL = 16Ω; THD+N = 1%
A-weighted (20Hz – 20kHz)
34
95 104
dB
Total Harmonic
Distortion + Noise
THD+N
RL = 32Ω; PO = 20mW
(20Hz – 20kHz)
-90 dB
RL = 32Ω; PO = 5mW
(20Hz – 20kHz)
-91
RL = 16Ω; PO = 20mW
(20Hz – 20kHz)
-91 -81
RL = 16Ω; PO = 5mW
(20Hz – 20kHz)
-87
DC Offset
0.5 2
mV
Channel separation
Mute attenuation
RL = 16Ω
ENA = 0
80 87
95 110
dB
dB
Power supply rejection
PSRR
100mV pk-pk @ 217Hz on VDD
75
dB
Maximum load
capacitance
HPOUTL or HPOUTR
2 nF
Digital Input (ENA)
Input high level
Input low level
0.8 x VDD
0.2 x VDD
V
V
Other Parameters
Quiescent current
Shutdown current
Start-up time
IVDD ENA = 1, Inputs grounded
IVDD ENA = 0
750 1000
0.9 2
13
μA
μA
ms
w
PD, February 2011, Rev 4.0
5


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Featured Datasheets

Part NumberDescriptionMFRS
WM9010The function is Class G Stereo Headphone Driver. Wolfson MicroelectronicsWolfson Microelectronics

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