NCP2824FCT2GEVB ON Semiconductor, NCP2824FCT2GEVB Datasheet

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NCP2824FCT2GEVB

Manufacturer Part Number
NCP2824FCT2GEVB
Description
Audio IC Development Tools NCP2824 EVB
Manufacturer
ON Semiconductor
Type
Audio Amplifiersr
Datasheet

Specifications of NCP2824FCT2GEVB

Rohs
yes
Product
Evaluation Boards
Tool Is For Evaluation Of
NCP2824
Operating Supply Voltage
5 V
Interface Type
1-Wire
Operating Supply Current
1.5 A
Output Power
2.4 W
NCP2824EVB/D
NCP2824:
Evaluation Board Manual
Prepared by: Dominique ROMEO
Overview
The NCP2824 is a Filterless Class D amplifier
capable of delivering up to 2.4 W to a 4 Ω load
with a 5 V supply voltage. With the same battery
voltage, it can deliver 1.2 W to an 8 Ω load with
less than 1% THD+N. The Non-clipping function
adjusts automatically the output voltage in order to
control the distortion when an excessive input is
applied to the amplifier. This adjustment is done
thanks to an Automatic Gain Control circuitry
(AGC) built-in the chip.
interface allows to enable/disable the non Clipping
function and also to configure the maximum
distortion level in the output.
power limit function is also embedded in order to
protect speakers from damage caused by an
excessive sound level.
..
© Semiconductor Components Industries, LLC, 2007
novembre, 2010 – Rev1.0
ENABLE- SINGLE WIRE
J3
Jumper2
J2
Jumper2
1
2
1
2
1
2
1
2
J1
Jumper3
J6
TP 1.0D
J7
TP 1.0D
1
2
3
0
0
1
2
3
INPF
INMF
Vdd
CNTL
0
1
1
J8
TP 1.0D
CUT H
CUT H
1
1
J4
J5
C1
100n
C2
100n
2
2
2
2
A simple Single wire
0
C4
NC
A programmable
Figure 1. NCP2824EVB Schematic
NCP2824
C1
C2
A1
0
J14 CON2
0
U1
100µF-NC
INP
INM
CNTL
1
C5
1
0
GND
J13
2
1
Vdd
2
OUTM
OUTP
0
POWER SUPPLY
J9
TP 1.0D
typical operation of the NCP2824 device for
laboratory characterization. The NCP2824EVB
schematic is depicted Figure 1
Title
Size
Date:
0
A3
C3
Custom
The intent of the demo boards is to illustrate
C3
4.7µF
1
0
J12
TP 1.0D
1
NCP2824 EVB
Document Number
NCP2824 EVB TLS-P-001-A-0310-DR
OUTP
OUTN
Friday , Nov ember 05, 2010
0
EVALUATION BOARD MANUAL
C6
4.7µF
J10
TP 1.0D
J11
TP 1.0D
BOARD FIXATION HOLES
http://onsemi.com
FIX 3.2 H
2
1
SPEAKER CONNECTION
J16
J15
CON2
2
1
Sheet
FIX 3.2 H
Publication Order Number
J17
1
0
FIX 3.2 H
J18
of
FIX 3.2 H
J19
1
Rev
<Rev Code>
:

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NCP2824FCT2GEVB Summary of contents

Page 1

NCP2824EVB/D NCP2824: Evaluation Board Manual Prepared by: Dominique ROMEO Overview The NCP2824 is a Filterless Class D amplifier capable of delivering Ω load with supply voltage. With the same battery ...

Page 2

Operation The operating power supply of the NCP2824 is from 2.5 to 5.5 V. The absolute maximum input voltage is 7 power supply set to 3.6 V and current limit set to at least 1.5 A must be ...

Page 3

TEST POINT Symbol J12 This test point is directly connected to the GND J9 This test point is directly connected to the Vdd pin J6 This test point is connected to the positive audio input J7 This test point is ...

Page 4

TYPICAL OPERATING CHARACTERISTICS THD+N vs Pout @ 25°C Vdd=2.5V Vdd=2.7V Vdd=3V Vdd=3.6V 100 10 1 0.1 0.01 10 100 Pout (mW) Figure 2. THD vs. P Rl=8 Ohms, f=1kHz OUT, Eff vs Pout @ Vdd=3.6V RL=8 Ohms 100 90 80 ...

Page 5

PCB Layout As with all Class D amplifiers, care must be observed to place the components on the PCB and layout the critical nodes. The evaluation board is made of 4 PCB layers where first internal NCP2824EVB/D layer is a ...

Page 6

NCP2824EVB/D Figure 10: Bottom Layer Routing http://onsemi.com 6 ...

Page 7

BILL OF MATERIALS Qty Ref Des. Description . 1 U1 NCP2824 2 C1,C2 Capacitor , Ceramic 100nF 2 C3,C6 Capacitor, Ceramic 4.7 µF 6.3 V Mal. SL5.08/2/90B plus Fem. BLZ 2 J14, J15 5.08 Header 3 pin, 100 ...

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