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NCP2815 fiches techniques PDF

ON Semiconductor - LongPlay Headphone Amplifier

Numéro de référence NCP2815
Description LongPlay Headphone Amplifier
Fabricant ON Semiconductor 
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NCP2815 fiche technique
NCP2815
NOCAPt LongPlay
Headphone Amplifier
NCP2815 is a dual LongPlay true ground headphone amplifier
designed for portable communication device applications such as
mobile phones. This part is capable of delivering 26 mW of
continuous average power into a 32 W load from a 1.8 V power supply
with a THD+N of 1%.
Based on the power supply delivered to the device, an internal
power management block generates a symmetrical positive and
negative voltage. Thus, the internal amplifiers provide outputs
referenced to Ground and the losses are reduced which helps to
increase the battery life. In this NOCAP configuration, the two
external heavy coupling capacitors can be removed. This provides a
significant space and cost savings compared to a typical stereo
application.
NCP2815 is available with an external adjustable gain (version A),
or internal gain of 1.5 V/V (version B). It reaches a superior 100 dB
PSRR and noise floor. Thus, it offers high fidelity audio sound, as well
as a direct connection to the battery. It contains circuitry to prevent
“Pop & Click” noise that would otherwise occur during turnon and
turnoff transitions. The device is available in 12 bump CSP package
(1.2 x 1.6 mm) which helps to save space on the board.
Features
NOCAP Output Eliminates DCBlocking Capacitors:
Saves Board Area
Saves Component Cost
No LowFrequency Response Attenuation
LongPlay Architecture: Increase the Battery Life
High PSRR (100 dB): Direct Connection to the Battery
“Pop and Click” Noise Protection Circuitry
Internal Gain (1.5 V/V) or External Adjustable Gain
Ultra Low Current Shutdown Mode
High Impedance Mode
1.6 V – 3.6 V Operation
Thermal Overload Protection Circuitry
CSP 1.2 x 1.6 mm
These Devices are PbFree, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
Headset Audio Amplifier for
Cellular Phones
MP3 player
Personal Digital Assistant and Portable Media Player
Portable Devices
http://onsemi.com
12 PIN CSP
FC SUFFIX
CASE 499BJ
MARKING
DIAGRAM
815xz
AYWW
G
x = A for NCP2815A
= B for NCP2815B
z = C for Backside laminate
A = Assembly Location
Y = Year
WW = Work Week
G = PbFree Package
Pin Configuration
A1
CPM
B1
PGND
C1
CPP
A2 A3
PVM
B2
INL
B3
/SD HiZ
C2 C3
VP OUTL
(Top View)
A4
INR
B4
SGND
C4
OUTR
ORDERING INFORMATION
See detailed ordering and shipping information on page 10 of
this data sheet.
© Semiconductor Components Industries, LLC, 2012
January, 2012 Rev. 1
1
Publication Order Number:
NCP2815/D

PagesPages 11
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