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參數(shù)資料
| 型號(hào)： | NCP9004FCT1G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2.65 W Filterless Class−D Audio Power Amplifier |
| 中文描述： | 2.65 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9 |
| 封裝： | LEAD FREE, FLIP-CHIP, CSP-9 |
| 文件頁(yè)數(shù)： | 1/17頁(yè) |
| 文件大?。?/td> | 323K |
| 代理商： | NCP9004FCT1G |
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Semiconductor Components Industries, LLC, 2006
August, 2006
Rev. 2
1
Publication Order Number:
NCP9004/D
NCP9004
2.65 W Filterless ClassD
Audio Power Amplifier
The NCP9004 is a cost
effective mono Class
D audio power
amplifier capable of delivering 2.65 W of continuous average power
to 4.0
from a 5.0 V supply in a Bridge Tied Load (BTL)
configuration. Under the same conditions, the output power stage can
provide 1.4 W to a 8.0 BTL load with less than 1% THD+N. For
cellular handsets or PDAs it offers space and cost savings because no
output filter is required when using inductive tranducers. With more
than 90% efficiency and very low shutdown current, it increases the
lifetime of your battery and drastically lowers the junction
temperature.
The NCP9004 processes analog inputs with a pulse width
modulation technique that lowers output noise and THD when
compared to a conventional sigma
delta modulator. The device allows
independent gain while summing signals from various audio sources.
Thus, in cellular handsets, the earpiece, the loudspeaker and even the
melody ringer can be driven with a single NCP9004. Due to its low
42 V noise floor, A
weighted, a clean listening is guaranteed no
matter the load sensitivity.
Features
Optimized PWM Output Stage: Filterless Capability
Efficiency up to 90%
Low 2.5 mA Typical Quiescent Current
Large Output Power Capability: 1.4 W with 8.0 Load and
THD+N < 1%
Wide Supply Voltage Range: 2.5
5.5 V Operating Voltage
High Performance, THD+N of 0.03% @ V
p
= 5.0 V,
R
L
= 8.0 , P
out
= 100 mW
Excellent PSRR (
65 dB): No Need for Voltage Regulation
Surface Mounted Package 9
Pin Flip
Chip CSP (SnPb and Pb
Free)
Fully Differential Design. Eliminates Two Input Coupling Capacitors
Very Fast Turn On/Off Times with Advanced Rising and Falling
Gain Technique
External Gain Configuration Capability
Internally Generated 250 kHz Switching Frequency
Short Circuit Protection Circuitry
“Pop and Click” Noise Protection Circuitry
Applications
Cellular Phone
Portable Electronic Devices
PDAs and Smart Phones
Portable Computer
http://onsemi.com
9
PIN FLIP
CHIP CSP
FC SUFFIX
CASE 499E
PIN CONNECTIONS
9
Pin Flip
Chip CSP
1
A3
B3
C3
A2
B2
C2
A1
B1
C1
GND
INP
OUTM
VP
SD
OUTP
GND
INM
MARKING
DIAGRAM
MAQ = Device Code
A
= Assembly Location
Y
= Year
WW
= Work Week
= Pb
Free Package
MAQ
AYWW
1
VP
(Top View)
OUTM
OUTP
Cs
GND
R
i
R
i
SD
INP
INM
VP
Input from
Microcontroller
Audio
Input
from
DAC
3.7 mm
1.6 mm
Solution Size
Cs
R
i
R
i
See detailed ordering and shipping information on page 16 of
this data sheet.
ORDERING INFORMATION
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