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ON Semiconductor - Audio Management Integrated Circuit

Numéro de référence NCP2704
Description Audio Management Integrated Circuit
Fabricant ON Semiconductor 
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NCP2704 fiche technique
NCP2704
Audio Management
Integrated Circuit with
2.8 W Class D and LongPlay
True Ground Headphone
Amplifier
http://onsemi.com
The NCP2704 is a cost effective audio subsystem designed for
portable applications such as cellular phones and portable media
MARKING
DIAGRAM
player. It has been designed to cover the power audio requirements in
portable equipment: including a high fidelity Class D speaker
amplifier and a Class G equivalent LongPlay true ground headphone
amplifier. This patented headphone amplifier circuitry allows the
removal of the bulky output capacitors and minimize audio playback
current consumption with minimum external components. In addition
the user can set the output swing to have enough output dynamic even
A1
20 PIN CSP
FC SUFFIX
CASE 499BH
NCP2704
AYWW
G
when a damping resistor is added.
Through a flexible I2C interface, NCP2704 can support both single
ended and differential types of analog input signal. In both cases, it
offers a zero pop noise signature. The same interface allows a user
defined architecture with an input control, highly accurate gain setting
capability from 60 dB to +12 dB and output control. In addition
NCP2704 = Specific Device Code
A = Assembly Location
Y = Year
WW = Work Week
G = PbFree Package
NCP2704 offers the possibility to reduce the EMI perturbation by
lowering the rise and fall times of the Class D outputs (software
PINOUT
programmable). The Loudspeaker also amplifier includes an AGC
which performs two functions: limiter and nonclipping.
Features
Flexible MUX Capability and Volume Control
Separated Mixer Control Between Louspeaker and Headset
Support Either Differential or Singleended Input
High Sound Quality
100 dB PSRR on Headphone Amplifier
80 dB PSRR on Loudspeaker Amplifier
0.02% THD+N at 1 kHz on Headset Amplifier
0.1% THD+N at 1 kHz on Loudspeaker Amplifier
A1
IN2B
B1
IN2A
C1
NC
D1
LPN
A2
IN1B
B2
IN1A
C2
GND
D2
PVDD
A3 A4 A5
HSR HSL PVM
B3
GND
B4
I2CEN
B5
C1N
C3
SCL
C4
SDA
C5
GND
D3 D4 D5
LPP HSVDD C1P
Low EMI Filterless Class D Loudspeaker Amplifier, Programmable
High Efficiency or Low EMI Mode
Programmable AGC: NonClipping or Power Limit (Loudspeaker
ORDERING INFORMATION
Output)
See detailed ordering and shipping information in the package
Long Play True Ground Headphone Amplifier,
20BumpdimCehnispionSscsaelcetioPnaocnkpaaggee (227.o5f txhis2d.0atamsmhe)et.
Programmable Output Swing (Up to 5 Vpp)
I2C Control
Software Shutdown
No Pop and Click Noise
TDMA Noise Free
This is a PbFree Device
Typical Applications
Cellular Phones
Portable Media Player
Thermal and ShortCircuit Protection
© Semiconductor Components Industries, LLC, 2010
November, 2010 Rev. 0
1
Publication Order Number:
NCP2704/D

PagesPages 28
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