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PDF IS31AP4915 Data sheet ( Hoja de datos )
| Número de pieza | IS31AP4915 | |
| Descripción | 20VP-P CHARGE PUMP CERAMIC SPEAKER DRIVER | |
| Fabricantes | ISSI | |
| Logotipo |  |
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IS31AP4915
20VP-P CHARGE PUMP CERAMIC SPEAKER DRIVER
September 2012
GENERAL DESCRIPTION
The IS31AP4915 features a mono power amplifier
with an integrated charge-pump power supply
specifically designed to drive the high capacitance of
a ceramic loudspeaker.
The IS31AP4915 maximizes battery life by offering
high performance efficiency.
The IS31AP4915 is ideally suited to deliver the high
output-voltage swing required to drive
ceramic/piezoelectric speakers.
The device utilizes comprehensive click-and-pop
suppression and shutdown control. The IS31AP4915
is fully specified over the -40°C to +85°C extended
temperature range and is available in small lead-free
16-pin QFN (4mm × 4mm) packages.
FEATURES
Integrated charge-pump power supply - no
inductor required
Thermal protection
Pop reduction circuitry
20VP-P voltage swing into piezoelectric speaker
QFN-16, 4mm × 4mm
APPLICATIONS
CD/MP3 players
Smart phones
Cellular phones
PDAs
Handheld gaming
TYPICAL APPLICATION CIRCUIT
220pF
200K
33nF 5K
2.5 - 5.5V
1 uF
http://www.DataSheet4U.net/
IN
SVDD
PVDD
SHUTDOWN
100K
SD
SGND
PGND
OUT +
FB
OUT -
SVSS
PVSS
10ohm
10K
10K
10ohm
10 uF
10 uF
Figure 1 Typical Application Circuit
Integrated Silicon Solution, Inc. – www.issi.com
Rev.B, 09/11/2012
1
datasheet pdf - http://www.DataSheet4U.net/
1 page  
IS31AP4915
TYPICAL OPERATING CHARACTERISTICS
Vcc = 2.7V
Vout = 3Vrms
Vout = 1.25Vrms
Vcc = 2.7V
fIN = 1kHz
Figure 2 THD+N vs. Frequency(RL = 1µF+10Ω)
Vcc = 3.6V
Figure 3 THD+N vs. Output Voltage(RL = 1µF+10Ω)
Vcc = 3.6V
fIN = 1kHz
Vout = 4Vrms
Vout = 2Vrms
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Figure 4 THD+N vs. Frequency(RL = 1µF+10Ω)
Vcc = 5V
Vout = 6Vrms
Vout = 3Vrms
Figure 6 THD+N vs. Frequency(RL = 1µF+10Ω)
Integrated Silicon Solution, Inc. – www.issi.com
Rev.B, 09/11/2012
Figure 5 THD+N vs. Output Voltage(RL = 1µF+10Ω)
Vcc = 5 V
fIN = 1kHz
Figure 7 THD+N vs. Output Voltage(RL = 1µF+10Ω)
5
datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet IS31AP4915.PDF ] | |
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