Product Overview

Product Overview
NCP2704: Audio Management Subsystem - Power Amplifier, Class D
For complete documentation, see the data sheet
Product Description
The NCP2704 is a cost effective audio subsystem designed for portable applications such as cellular phones and portable media
players. 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 minimizes audio playback current consumption with minimum external components.
In addition
2 the user can set the output swing to have enough output dynamic even when a damping resistor is added. Through a
flexible I C interface, NCP2704 can support both single ended and differential types of analog input signals. 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 EMI perturbation by
lowering the rise and fall times of the Class D outputs (software programmable). The loudspeaker amplifier also includes an AGC
which performs two functions: limiter and non-clipping.
Features
Benefits
• Flexible MUX capability and volume control
• Separated mixer control between loudspeaker and headset
support, either differential or single-ended input
• High sound quality
• -100 dB PSRR on headphone amplifier
-80 dB PSRR on loudpseaker amplifier
• Low EMI filterless Class D loudspeaker amplifier,
programmable high efficiency or low EMI mode
• Programmable AGC: Non-clipping or power limit
(loudspeaker output)
• LongPlay true ground headphone amplifier
• No output filter required
• Sound pressure level maximization and speaker protection
• Increased playback time
Applications
End Products
• Audio amplification
• Cellular phones
• Portable media player
Part Electrical Specifications
Product
Compliance
Status
Class
Output
VCC Max
Power Typ (V)
(W)
Output
Type
NCP2704FCCT1G
Pb-free
Active
D
1.4
Differential 1
5.5
ton Typ
(ms)
For more information please contact your local sales support at www.onsemi.com
Created on: 6/30/2016
THD + N
Typ (%)
IQ Typ
(mA)
ISD Typ
(nA)
Package
Type
0.1
3.6
100
Flip-Chip20