NCP4896
Product Preview
1.0 Watt Audio Power
Amplifier with Earpiece
Driving Capability
The NCP4896 is an audio power amplifier designed for portable
communication device applications such as mobile phones. This part
is capable of delivering 1.0 W of continuous average power to an
8.0
W
BTL load from a 5.0 V power supply and, 250 mW to a 4.0
W
BTL from 2.6 V power supply. It also provides the control of driving
a single鈭抏nded earpiece and delivers 90 mW from a 5.0 V power
supply to a 32
W
load.
This device provides high quality audio while requiring few
external components and minimal power consumption. It features a
low鈭抪ower consumption shutdown mode, which is achieved by
driving the shutdown pin with logic Low.
The NCP4896 contains circuitry to prevent from 蘆 pop and click 祿
noise that would otherwise occur during turn鈭抩n and turn鈭抩ff
transitions. It is also efficient when switching modes from BTL to SE
and SE to BTL.
For maximum flexibility, the part provides an externally controlled
gain (with resistors), as well as an externally controlled turn鈭抩n time
(with bypass capacitor).
Due to its excellent PSRR, it can be directly connected to the
battery, saving the use of an LDO.
Features
http://onsemi.com
MARKING
DIAGRAM
1
9鈭扨IN FLIP鈭扖HIP CSP
FC SUFFIX
CASE 499E
XXX
YYWW
A1
XXX
YY
WW
= Specific Device Code
= Year
= Work Week
PIN CONNECTIONS
9鈭扨IN FLIP鈭扖HIP CSP
A1
SE/BTL
B1
Vp
C1
INM
A2
BYP
B2
NC
C2
SD
(Top View)
A3
OUTB
B3
VM
C3
OUTA
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Single鈭扙nded or Differential Control
1.0 W to an 8.0
W
BTL Load from a 5.0 V Power Supply
Excellent PSRR: Direct Connection to the Battery
Ultra Low Current Shutdown Mode
2.2 V鈭?.5 V Operation
External Gain Configuration Capability
External Turn鈭抩n Time Configuration Capability
Thermal Overload Protection Circuitry
Up to 1.0 nF Capacitive Load Driving Capability
蘆 Pop and Click 祿 Noise Protection Circuit
Pb鈭扚ree Package is Available
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
Typical Applications
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Portable Electronic Devices
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PDAs
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Mobile Phones
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
漏
Semiconductor Components Industries, LLC, 2004
1
February, 2004 鈭?Rev. P0
Publication Order Number:
NCP4896/D
NCP4896/D相關(guān)型號(hào)PDF文件下載
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