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PDF WM9010 Data sheet ( Hoja de datos )

Número de pieza WM9010
Descripción Class G Stereo Headphone Driver
Fabricantes Wolfson Microelectronics 
Logotipo Wolfson Microelectronics Logotipo



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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 pdf
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
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PD, February 2011, Rev 4.0
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WM9010 arduino
Production Data
IMPORTANT NOTICE
WM9010
Wolfson Microelectronics plc (“Wolfson”) products and services are sold subject to Wolfson’s terms and conditions of sale,
delivery and payment supplied at the time of order acknowledgement.
Wolfson warrants performance of its products to the specifications in effect at the date of shipment. Wolfson reserves the
right to make changes to its products and specifications or to discontinue any product or service without notice. Customers
should therefore obtain the latest version of relevant information from Wolfson to verify that the information is current.
Testing and other quality control techniques are utilized to the extent Wolfson deems necessary to support its warranty.
Specific testing of all parameters of each device is not necessarily performed unless required by law or regulation.
In order to minimize risks associated with customer applications, the customer must use adequate design and operating
safeguards to minimise inherent or procedural hazards. Wolfson is not liable for applications assistance or customer
product design. The customer is solely responsible for its selection and use of Wolfson products. Wolfson is not liable for
such selection or use nor for use of any circuitry other than circuitry entirely embodied in a Wolfson product.
Wolfson’s products are not intended for use in life support systems, appliances, nuclear systems or systems where
malfunction can reasonably be expected to result in personal injury, death or severe property or environmental damage.
Any use of products by the customer for such purposes is at the customer’s own risk.
Wolfson does not grant any licence (express or implied) under any patent right, copyright, mask work right or other
intellectual property right of Wolfson covering or relating to any combination, machine, or process in which its products or
services might be or are used. Any provision or publication of any third party’s products or services does not constitute
Wolfson’s approval, licence, warranty or endorsement thereof. Any third party trade marks contained in this document
belong to the respective third party owner.
Reproduction of information from Wolfson datasheets is permissible only if reproduction is without alteration and is
accompanied by all associated copyright, proprietary and other notices (including this notice) and conditions. Wolfson is
not liable for any unauthorisedٛ alteration of such information or for any reliance placed thereon.
Any representations made, warranties given, and/or liabilities accepted by any person which differ from those contained in
this datasheet or in Wolfson’s standard terms and conditions of sale, delivery and payment are made, given and/or
accepted at that person’s own risk. Wolfson is not liable for any such representations, warranties or liabilities or for any
reliance placed thereon by any person.
ADDRESS:
Wolfson Microelectronics plc
26 Westfield Road
Edinburgh
EH11 2QB
United Kingdom
Tel :: +44 (0)131 272 7000
Fax :: +44 (0)131 272 7001
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PD, February 2011, Rev 4.0
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