HT82V735

HT82V735
330mW Stereo Audio Power Amp With Shutdown
Features
· Operating voltage: 2.4V~6.0V
· Low power consumption
· Very low standby current 0.5mA (Typ.)
· Wide temperature operating range
· High signal-to-noise ratio
· Direct drive speaker
· High slew rate
· Shutdown function
· Output power 330mW at 10% THD+N into 8W
· 8-pin SOP package
· Excellent power supply ripple rejection
Applications
· CD ROM DVD player
· Headphone Amplifier
· Notebook/Desktop PC
· Microphone Pre-amplifier
· Portable Audio Device
· Discman/MP3
General Description
HT82V735 is a class AB stereo earphone driver designed for portable digital audio application. Pin assignments and application circuits are compatible with
LM4880 which is suitable for effective low cost applications. The HT82V735 can deliver a maximum of 330mW
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.
Block Diagram
Pin Assignment
V D D
O U T 2
O U T 1
+
B
+
A
IN 1
B IA S
O U T 1
1
8
V D D
IN 1
2
7
O U T 2
B IA S
3
6
IN 2
V S S
4
5
C E
IN 2
V S S
P o w e r D o w n
H T 8 2 V 7 3 5
8 S O P -A
C E
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
HT82V735
Absolute Maximum Ratings
Supply Voltage .............................VSS-0.3V to VSS+6V
Storage Temperature ...........................-50°C to 125°C
Input Voltage .............................VSS-0.3V to VDD+0.3V
Operating Temperature ..........................-20°C to 70°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those
listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
Electrical Characteristics
Symbol
Parameter
VSS=0V; fi=1kHz; RL=32W; Ta=25°C
Test Conditions
VDD
Conditions
Min.
Typ.
Max.
Unit
2.4
¾
6
V
Supplies
VDD
Supply Voltage
¾
IDD
Supply Current
5V
¾
¾
10
¾
mA
IPD
Power-down Current
5V
¾
¾
1
¾
mA
¾
¾
10
¾
mV
¾
62
¾
mA
No load
D.C. Characteristics
VI(OS)
Input Offset Voltage
5V
IO
Maximum Output Current
5V
RO
Output Resistance
5V
VO
Output Voltage Swing
5V
(THD+N)/S<0.1%
¾
230
¾
mW
RL=8W
¾
0.66
¾
3
V
RL=16W
0.38
¾
3.15
V
RL=32W
0.18
¾
3.29
V
PSRR
Power Supply Rejection Ratio
5V
CS=2.2mF,
VRIPPLE=200VRMS,
f=120Hz
¾
66
¾
dB
XTALK
Channel Separation
5V
PO=200mW, RL=8W,
CB=2.2mF
¾
85
¾
dB
PO=200mW, RL=8W,
f=1kHz
¾
0.03
¾
PO=120mW, RL=16W,
f=1kHz
¾
0.01
¾
PO=75mW, RL=32W,
f=1kHz
¾
0.01
¾
PO=30mW, RL=32W,
f=1kHz
¾
0.01
¾
(THD+N)/S=0.1%,
f=1kHz
¾
¾
¾
RL=8W
¾
240
¾
RL=16W
¾
160
¾
RL=32W
¾
90
¾
(THD+N)/S=10%,
f=1kHz
¾
¾
¾
RL=8W
¾
330
¾
RL=16W
¾
200
¾
RL=32W
¾
110
¾
A.C. Characteristics
(THD+N)/S
Total Harmonic Distortion Plus
Noise to Signal Ratio
5V
3.3V
PO
Rev. 1.10
Output Power
5V
2
%
mW
February 18, 2004
HT82V735
Symbol
Test Conditions
Parameter
VDD
S/N
Signal to Noise Ratio
5V
SR
Slew Rate
5V
ATT
Power-down Attenuation
5V
Conditions
VIN=1VRMS, RL=8W
¾
1kHz, 0dB
Min.
Typ.
Max.
Unit
¾
92
¾
dB
¾
3
¾
V/ms
¾
70
¾
dB
5 0 0 m
1
Typical Performance Characteristics
THD+N vs. Output Power
1 0
V D D = 5 V
F = 2 0 H z
A V = - 1
5
2
1
0 .5
0 .2
T H D + N
%
0 .1
0 .0 5
0 .0 2
0 .0 1
0 .0 0 5
R
L
= 8 W
0 .0 0 2
R
L
= 1 6 W
R
0 .0 0 1
L
= 3 2 W
0 .0 0 0 5
0 .0 0 0 2
0 .0 0 0 1
1 m
2 m
5 m
1 0 m
2 0 m
5 0 m
1 0 0 m
2 0 0 m
O u tp u t P o w e r (W )
Rev. 1.10
3
February 18, 2004
HT82V735
V
5 0
D D = 5 V
F = 1 k H z
A V = - 1
2 0
1 0
5
2
T H D + N %
1
0 .5
0 .2
0 .1
0 .0 5
R
= 8 W
L
= 1 6 W
R
L
= 3 2 W
0 .0 2
0 .0 1
L
R
0 .0 0 5
0 .0 0 2
0 .0 0 1
1 m
2 m
5 m
1 0 m
2 0 m
5 0 m
1 0 0 m
2 0 0 m
5 0 0 m
1
O u tp u t P o w e r (W )
2 0
V D D = 5 V
F = 2 0 k H z
A V = - 1
5
2
1
R
L
= 1 6 W
0 .5
0 .2
T H D + N
%
0 .1
0 .0 5
0 .0 2
0 .0 1
0 .0 0 5
R
L
= 8 W
R
L
= 3 2 W
0 .0 0 2
0 .0 0 1
0 .0 0 0 5
0 .0 0 0 2
0 .0 0 0 1
1 m
2 m
5 m
1 0 m
2 0 m
5 0 m
1 0 0 m
2 0 0 m
5 0 0 m
1
O u tp u t P o w e r (W )
Rev. 1.10
4
February 18, 2004
HT82V735
Application Circuits
+ 5 V
2 2 0 p F
+
1 5 k W
0 .1 m F
+
1 0 0 m F
8
V in A
2 .2 m F
1 5 k W
5
3
H T 8 2 V 7 3 5
2 .2 m F
2 .2 m F
V in B
2 2 0 m F
+
1
2
7
6
C E
2 2 0 m F
+
1 5 k W
1 5 k W
4
2 2 0 p F
Rev. 1.10
5
February 18, 2004
HT82V735
Package Information
8-pin SOP (150mil) Outline Dimensions
5
8
A
B
4
1
C
C '
G
H
D
E
Symbol
Rev. 1.10
a
F
Dimensions in mil
Min.
Nom.
Max.
A
228
¾
244
B
149
¾
157
C
14
¾
20
C¢
189
¾
197
D
53
¾
69
E
¾
50
¾
F
4
¾
10
G
22
¾
28
H
4
¾
12
a
0°
¾
10°
6
February 18, 2004
HT82V735
Product Tape and Reel Specifications
Reel Dimensions
D
T 2
A
C
B
T 1
SOP 8N
Symbol
Description
Dimensions in mm
A
Reel Outer Diameter
330±1.0
B
Reel Inner Diameter
62±1.5
C
Spindle Hole Diameter
13.0+0.5
-0.2
D
Key Slit Width
2.0±0.5
T1
Space Between Flange
12.8+0.3
-0.2
T2
Reel Thickness
18.2±0.2
Rev. 1.10
7
February 18, 2004
HT82V735
Carrier Tape Dimensions
P 0
D
P 1
t
E
F
W
C
D 1
B 0
P
K 0
A 0
SOP 8N
Symbol
Description
Dimensions in mm
W
Carrier Tape Width
12.0+0.3
-0.1
P
Cavity Pitch
8.0±0.1
E
Perforation Position
1.75±0.1
F
Cavity to Perforation (Width Direction)
5.5±0.1
D
Perforation Diameter
1.55±0.1
D1
Cavity Hole Diameter
1.5+0.25
P0
Perforation Pitch
4.0±0.1
P1
Cavity to Perforation (Length Direction)
2.0±0.1
A0
Cavity Length
6.4±0.1
B0
Cavity Width
5.20±0.1
K0
Cavity Depth
2.1±0.1
t
Carrier Tape Thickness
0.3±0.05
C
Cover Tape Width
Rev. 1.10
9.3
8
February 18, 2004
HT82V735
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Copyright Ó 2004 by HOLTEK SEMICONDUCTOR INC.
The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used
solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable
without further modification, nor recommends the use of its products for application that may present a risk to human life
due to malfunction or otherwise. Holtek¢s products are not authorized for use as critical components in life support devices
or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information,
please visit our web site at http://www.holtek.com.tw.
Rev. 1.10
9
February 18, 2004