ncp4896 ON Semiconductor, ncp4896 Datasheet

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ncp4896

Manufacturer Part Number
ncp4896
Description
1w Audio Amplifier With Earpiece Driving Capability
Manufacturer
ON Semiconductor
Datasheet

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Part Number:
ncp4896FCT1G
Manufacturer:
ON
Quantity:
50 700
NCP4896
1.0 Watt Audio Power
Amplifier with Earpiece
Driving Capability
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−ended earpiece and delivers 90 mW from a 5.0 V power
supply to a 32 W load.
external components and minimal power consumption. It features a
low−power consumption shutdown mode, which is achieved by
driving the shutdown pin with logic Low.
noise that would otherwise occur during turn−on and turn−off
transitions. It is also efficient when switching modes from BTL to SE
and SE to BTL.
gain (with resistors), as well as an externally controlled turn−on time
(with bypass capacitor).
battery, saving the use of an LDO.
Features
Typical Applications
March, 2005 − Rev. 3
The NCP4896 is an audio power amplifier designed for portable
This device provides high quality audio while requiring few
The NCP4896 contains circuitry to prevent from “pop and click”
For maximum flexibility, the part provides an externally controlled
Due to its excellent PSRR, it can be directly connected to the
Single−Ended 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−5.5 V Operation
External Gain Configuration Capability
External Turn−on Time Configuration Capability
Thermal Overload Protection Circuitry
Up to 1.0 nF Capacitive Load Driving Capability
“Pop and Click” Noise Protection Circuit
This is a Pb−Free Device
Portable Electronic Devices
PDAs
Mobile Phones
Semiconductor Components Industries, LLC, 2005
1
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
9−PIN FLIP−CHIP
CASE 499AL
FC SUFFIX
ORDERING INFORMATION
XXX = Specific Device Code
A
Y
WW
1
SE/BTL
INM
PIN CONNECTIONS
9−PIN FLIP−CHIP CSP
VP
B1
A1
C1
http://onsemi.com
= Assembly Location
= Year
= Work Week
(Top View)
BYP
NC
SD
B2
C2
A2
Publication Order Number:
A3
OUTB
OUTA
MARKING
DIAGRAM
A1
A3
B3
VM
C3
AYWW
XXX
NCP4896/D
C1

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ncp4896 Summary of contents

Page 1

... Low. The NCP4896 contains circuitry to prevent from “pop and click” noise that would otherwise occur during turn−on and turn−off transitions also efficient when switching modes from BTL to SE and SE to BTL ...

Page 2

... C b VIH SHUTDOWN SE VIL SE/BTL D Figure 1. Typical NCP4896 Application Circuit with Single−Ended Input PIN DESCRIPTION Pin Type Symbol A1 I SE/BTL When this pin is Low , the audio amplifier is in differential mode High level is applied, the configuration is in Single−Ended Mode ...

Page 3

... C/W with a 500 mm 4. Human Body Model, 100 pF discharge through a 1.5 kW resistor following specification JESD22/A114. 5. Machine Model, 200 pF discharged through all pins following specification JESD22/A115. 6. Maximum ratings per JEDEC Standard JESD78. NCP4896 Symbol Iout ...

Page 4

... Power Supply Rejection Ratio Efficiency Thermal Shutdown Temperature Total Harmonic Distortion 7. Min/Max limits are guaranteed by design, test or statistical analysis. 8. See section “Application Information” for a theoretical approach of this parameter. NCP4896 between − +85 C (Unless otherwise noted). A Symbol Conditions 3 Load ...

Page 5

... Figure 4. THD + N vs. Power Out (BTL Mode 3 BTL Mode = 0 250 mW out 0.01 0.001 10 100 1000 FREQUENCY (Hz) Figure 6. THD + N vs. Frequency (BTL Mode) NCP4896 3 BTL Mode = 1.0 kHz 0.1 0.01 0.001 1000 1200 0 100 Figure 3. THD + N vs. Power Out 1 0.1 0.01 ...

Page 6

... − 200 mV pk−pk ripple −50 −60 −70 −80 −90 −100 10 100 1000 FREQUENCY (Hz) Figure 12. PSRR (BTL Mode 2.6 V NCP4896 10.000 1.000 SE Mode = 1.0 kHz 0.100 0.010 0.001 80 100 0 Figure 9. THD + N vs. Output Power 1.000 ...

Page 7

... W − 200 mV pk−pk ripple −40 −50 −60 −70 −80 −90 −100 10 100 1000 FREQUENCY (Hz) Figure 18. PSRR (SE Mode 3.6 V NCP4896 0 − 3 −20 BTL Mode = 8 W − 200 mV pk−pk ripple −40 −50 −60 −70 −80 =1 ...

Page 8

... 1.1 1 −40 Figure 25. Quiescent Current (SE Mode) vs. VP http://onsemi.com 8 = 200 mV pk−pk GAIN = 5 GAIN = 1 100 1000 10000 100000 FREQUENCY (Hz) NCP4896 ON NCP4896 OFF 100 1000 FREQUENCY ( MODE = − TEMPERATURE (C ) 10000 ...

Page 9

... NCP4896 TYPICAL PERFORMANCE CHARACTERISTICS BTL Mode = Figure 26. Turn On Sequence (BTL Mode 3.6 V http://onsemi.com 9 ...

Page 10

... P = 633 mW Dmax 100 for 100 T , AMBIENT TEMPERATURE ( C) A Figure 31. Power Derating − 9−Pin Flip−Chip CSP NCP4896 0.3 0.25 0.2 0.15 0.1 0. 1.2 0 0.1 Figure 28. Power Dissipation vs. Output Power 0.4 0.35 R 0.3 0.25 0.2 0.15 0.1 0.05 0 0.3 0.4 0 0.05 0.1 Figure 30. Power Dissipation vs. Output Power ...

Page 11

... SE/BTL Operation Due to the internal control of each amplifier through SE/BTL pin, the NCP4896 allows a cost saving for application which requires to drive a example an 8.0 W BTL and Single−Ended load. The internal circuitry avoids “pop and click” noises that could occur in both BTL and Singled− ...

Page 12

... RF set the closed−loop gain of both amplifier order to optimize device and system performance, the NCP4896 should be used in low gain configurations. The low gain configuration minimizes THD + noise values and maximizes the signal to noise ratio, and the amplifier can still be used without running into the bandwidth limitations ...

Page 13

... J12 J13 SHUTDOWN Shutdown Input J20 SE/BTL J8 J10 J11 VP J19 SE/BTL Input C5 100 nF 100 100 kW Figure 33. Typical NCP4896 Application Circuit with Single−Ended Input NCP4896 − OUTA + BYPASS VP VMC BRIDGE 20 kW BIAS CONTROL 20 kW − ...

Page 14

... NCP4896 Silkscreen Layer Top Layer Figure 34. Demonstration Board for 9−Pin Flip−Chip CSP Device − PCB Layers http://onsemi.com Bottom Layer 14 ...

Page 15

... BILL OF MATERIAL Item Part Description 1 NCP4896 Audio Amplifier 2 3.5 mm PCB Jack Connector 3 SMD Resistor SMD Resistor 100 kW 5 SMD Resistor 1.0 kW Ceramic Capacitor 1.0 mF X7R 6 Tantalum Capacitor 47 mF, 6 Ceramic Capcitor 100 nF X7R 9 Jumper Header Vertical Mount, 2*1, 100 mils 10 Jumper Connector, 400 mils 11 I/O Connector ...

Page 16

... MILLIMETERS DIM MIN MAX A 0.540 0.660 A1 0.210 0.270 A2 0.330 0.390 D 1.450 BSC E 1.450 BSC b 0.290 0.340 e 0.500 BSC D1 1.000 BSC E1 1.000 BSC 0.50 mm inches ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative. NCP4896/D ...

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