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PDF HT82V739 Data sheet ( Hoja de datos )
| Número de pieza | HT82V739 | |
| Descripción | 1200mW Audio Power Amp with Shutdown | |
| Fabricantes | Holtek Semiconductor | |
| Logotipo |  |
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HT82V739
1200mW Audio Power Amp with Shutdown
Features
· Operating voltage: 2.2V to 5.5V
· High signal-to-noise ratio
· Low distortion
· Large output voltage swing
· Low power consumption
· Output power 1200mW at 10% THD+N into 8W
(VDD=5V)
Applications
· Applied for HT36 series, HT86 series and other
Holtek products
· Wide temperature operating range
· Low power-on and chip enable or disable POP noise.
· Low standby current
· Power off control
· Direct drive speaker
· 8-pin DIP/SOP package
General Description
HT82V739 is an integrated class AB mono speaker
driver contained in a 8-pin DIP/SOP package. The
HT82V739 is capable of delivering 1200mW output
power to an 8W load with less than 10% (THD+N) from a
5V power supply. The very low standby current in
shutdown mode contributes to the reduction of power
consumption of battery-powered equipments.
Block Diagram
O U TN
A u d In
R
10R
AM P1
VREF
V S S B IA S
VDD
R
AM P2
R
O U TP
CE
Pin Assignment
O U TN
A u d In
VREF
VSS
18
27
36
45
H T82V 739
8 D IP -A /S O P -A
VDD
O U TP
NC
CE
Pin Description
Pin No. Pin Name
1 OUTN
2 Aud In
3 VREF
4 VSS
5 CE
6 NC
7 OUTP
8 VDD
I/O Description
O Negative output
I Audio input
O Speaker non-inverting input voltage reference
¾ Negative power supply, ground
I Chip enable, low active
¾ Not connected
O Positive output
¾ Positive power supply
Rev. 1.20
1 January 17, 2008
1 page  
Application Circuits
A u d io In
R
CE
C 3 1 V DD
1mF
2
A ud
O
In
U TN
VDD
8
H T82V 739
3 C2
VREF
C1
1mF
47mF
4
567
SPK
wHwTw8.D2aVta7S3he9et4U.com
Rev. 1.20
5 January 17, 2008
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet HT82V739.PDF ] | |
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