HT82V735 Datasheet, PDF (1/9 Pages) Holtek Semiconductor Inc – 330mW Stereo Audio Power Amp With Shutdown

HT82V735
330mW Stereo Audio Power Amp With Shutdown
Features
· Operating voltage: 2.4V~6.0V
· Very low standby current 0.5mA (Typ.)
· High signal-to-noise ratio
· High slew rate
· Output power 330mW at 10% THD+N into 8W
· Excellent power supply ripple rejection
· Low power consumption
· Wide temperature operating range
· Direct drive speaker
· Shutdown function
· 8-pin SOP package
Applications
· CD ROM DVD player
· Notebook/Desktop PC
· Portable Audio Device
· Headphone Amplifier
· Microphone Pre-amplifier
· Discman/MP3
General Description
HT82V735 is a class AB stereo earphone driver de-
signed for portable digital audio application. Pin assign-
ments and application circuits are compatible with
LM4880 which is suitable for effective low cost applica-
tions. The HT82V735 can deliver a maximum of 330mW
Block Diagram
O U T1
A
IN 1
B IA S
VDD
O U T2
B
IN 2
VSS
P ow erD ow n
CE
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. It
provides 8-SOP package.
Pin Assignment
O U T1 ₁
IN 1 ₂
B IA S ₃
VSS ₄
8 ^VDD
7 ^{O U T2}
6 ^{IN 2}
5 ^CE
H T82V 735
8 S O P -A
Pin Description
Pin No. Pin Name I/O
Description
1
OUT1 O Channel 1 output pin
2
IN1
I Channel 1 Audio input
3
BIAS
I Supports a voltage driver for internal bias
4
VSS
¾ Negative power supply, ground
5
CE
I Power down mode when held high, I (power down) =1mA
6
IN2
I Channel 2 Audio input
7
OUT2 O Channel 2 output pin
8
VDD
¾ Positive power supply
Rev. 1.10
1
February 18, 2004