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NCP2704

更新时间： 2024-09-19 01:17:51
品牌 Logo 应用领域
安森美 - ONSEMI /
页数 文件大小 规格书
28页 784K
描述
Audio Management Integrated Circuit

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NCP2704 数据手册

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NCP2704  
Audio Management  
Integrated Circuit with  
2.8 W Class D and LongPlay  
True Ground Headphone  
Amplifier  
http://onsemi.com  
MARKING  
The NCP2704 is a cost effective audio subsystem designed for  
portable applications such as cellular phones and portable media  
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  
when a damping resistor is added.  
DIAGRAM  
NCP2704  
AYWW  
G
A1  
20 PIN CSP  
FC SUFFIX  
CASE 499BH  
NCP2704= Specific Device Code  
2
Through a flexible I C interface, NCP2704 can support both single  
A
= Assembly Location  
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 offers the possibility to reduce the EMI perturbation by  
lowering the rise and fall times of the Class D outputs (software  
programmable). The Loudspeaker also amplifier includes an AGC  
which performs two functions: limiter and non−clipping.  
Y
= Year  
= Work Week  
= Pb−Free Package  
WW  
G
PINOUT  
A1  
A2  
A3  
A4  
A5  
Features  
PVM  
IN2B  
IN1B  
HSR  
HSL  
• Flexible MUX Capability and Volume Control  
♦ Separated Mixer Control Between Louspeaker and Headset  
♦ Support Either Differential or Single−ended Input  
• High Sound Quality  
B1  
B2  
B3  
B4  
B5  
IN2A  
IN1A  
GND  
I2CEN  
C1N  
C1  
C2  
C3  
C4  
C5  
NC  
GND  
SCL  
SDA  
GND  
♦ −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  
D1  
D2  
D3  
D4  
D5  
LPN  
PVDD  
LPP HSVDD C1P  
• Low EMI Filterless Class D Loudspeaker Amplifier, Programmable  
High Efficiency or Low EMI Mode  
• Programmable AGC: Non−Clipping or Power Limit (Loudspeaker  
Output)  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 27 of this data sheet.  
• Long Play True Ground Headphone Amplifier,  
• 20−Bump Chip Scale Package (2.5 x 2.0 mm)  
• This is a Pb−Free Device  
Programmable Output Swing (Up to 5 V )  
pp  
2
• I C Control  
Typical Applications  
• Cellular Phones  
• Portable Media Player  
• Software Shutdown  
• No Pop and Click Noise  
• TDMA Noise Free  
• Thermal and Short−Circuit Protection  
© Semiconductor Components Industries, LLC, 2010  
1
Publication Order Number:  
NCP2704/D  
November, 2010 − Rev. 0  
1234567...28

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