HOLTEK HT82V733_02

HT82V733
240mA Audio Power Amp
Features
· High signal-to-noise ratio
· Wide temperature operating range
· High slew rate
· No switch ON/OFF clicks
· Low distortion
· Low standby current
· Large output voltage swing
· Power off control
· Excellent power supply ripple rejection
· Direct drive speaker
· Low power consumption
· 8-pin SOP package
· Short-circuit elimination
General Description
HT82V733 is an integrated class AB mono speaker
driver contained in an SOP-8 package. The device is
fabricated in a CMOS process and has been primarily
developed for portable digital audio applications.
Block Diagram
Pin Assignment
O U T N
A u d In
O U T P
1 0 R
R
R
A M P 2
A M P 1
V R E F
B IA S
1
8
V D D
2
7
O U T P
V R E F
3
6
N C
V S S
4
5
C E
H T 8 2 V 7 3 3
8 S O P -A
R
V S S
V D D
O U T N
A u d In
C E
Pin Description
Pin No.
Pin Name
I/O
Description
1
OUTN
O
Negative output
2
Aud In
I
Audio input
3
VREF
O
Speaker non-inverting input voltage reference
4
VSS
¾
Negative power supply, ground
5
CE
I
6
NC
¾
Not connected
7
OUTP
O
Positive output
8
VDD
¾
Positive power supply
Rev. 1.00
Chip enable, low active
1
October 24, 2002
HT82V733
Electrical Characteristics
Symbol
Parameter
VSS=0V, Ta=25°C
Test Conditions
VDD
Conditions
Min.
Typ.
Max.
Unit
Supplies
VDD
Supply Voltage
¾
¾
2.4
5.0
6.0
V
VSS
Negative Supply Voltage
5V
¾
¾
0
¾
V
ISTB
Standby Current
¾
¾
¾
¾
1
mA
2
4
10
VP-P=500mV, fi=1kHz
No load
4.8
12.3
23.5
VP-P=500mV, fi=1kHz
No load
15
60
140
¾
12
¾
¾
2.5
¾
5V Current
¾
240
¾
3V Current
¾
160
¾
RL=16W
1.2
¾
4
5V RL=8W
1.8
¾
3.4
RL=4W
2.1
¾
3
RL=16W
0.6
¾
2.3
3V RL=8W
0.9
¾
1.9
RL=4W
1.1
¾
1.7
¾
71
¾
¾
62
¾
VO(p-p)=3.5V
RL=8W
¾
-48
¾
dB
¾
3
¾
%
VO(p-p)=1.5V
RL=8W
¾
-30
¾
dB
¾
3
¾
%
¾
60
¾
¾
58
¾
Vi=0, No load
IDD
Operating Current
Ptot
Total Power Dissipation
¾
¾
mA
mW
DC Characteristics
VI(OS)
5V
¾
Input Offset Voltage
3V
IO
VO
PSRR
Maximum Output Current
(THD+N)/S<1%
Output Voltage Swing
(THD+N)/S<1%
Power Supply Rejection Ratio
5V fi=100Hz;
3V Vripple(p-p)=100mV
mV
mA
V
V
dB
AC Characteristics
5V
(THD+N)/S
Total Harmonic Distortion
Plus Noise-to-signal Ratio
3V
5V
S/N
¾
Signal-to-noise Ratio
3V
Rev. 1.00
2
dB
October 24, 2002
HT82V733
Functional Description
OUTP rising time (tR)
When CE active low, the HT82V733 need rising time to output fully on OUTP pin. However, the rising time depends on
C1. (*see the application circuits)
C E
O U T P
tR
Capacitor
tR
0.1mF
1mF
4.7mF
10mF
2.2V
15ms
30ms
90ms
185ms
3V
15ms
30ms
90ms
185ms
4V
15ms
30ms
90ms
185ms
Voltage
For battery based applications, power consumption is a key issue, therefore the amplifier should be turned off when in
the standby state. In order to eliminate any speaker sound bursts while turning the amplifier on, the application circuit,
which will incorporate a capacitance value of C1, should be adjusted in accordance with the speaker s audio frequency
response. A greater value of C1 will improve the noise burst while turning on the amplifier. The recommended operation sequence is:
Turn On: audio1 signal standby (1/2 VDD) ® enable amplifier ® wait tR for amplifier ready ® audio1 output
Turn Off: audio1 signal finished ® disable amplifier ® wait tR for amplifier off ® audio1 signal off
A u d io 1
tR
tR
E N
O U T
If the application is not powered by batteries and there is no problem with amplifier On/Off issue, a capacitor value of
0.1uF for C1 is recommended.
Application Circuits
A u d io In
1
C 3
0 .1 m F
R
2
O U T P
Rev. 1.00
N C
C E
5
6
7
3
D D
8
C 2
4 7 m F
H T 8 2 V 7 3 3
V R E F
C E
C 1
1 m F
3
V
O U T N
V D D
A u d io In
S p e a k e r
4
October 24, 2002
HT82V733
Package Information
8-pin SOP (150mil) outline dimensions
5
8
A
B
4
1
C
C '
G
H
D
E
Symbol
Rev. 1.00
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°
4
October 24, 2002
HT82V733
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±0.15
T1
Space Between Flange
12.8+0.3
-0.2
T2
Reel Thickness
18.2±0.2
Rev. 1.00
5
October 24, 2002
HT82V733
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. 1.00
9.3
6
October 24, 2002
HT82V733
Holtek Semiconductor Inc. (Headquarters)
No.3, Creation Rd. II, Science-based Industrial Park, Hsinchu, Taiwan
Tel: 886-3-563-1999
Fax: 886-3-563-1189
http://www.holtek.com.tw
Holtek Semiconductor Inc. (Sales Office)
11F, No.576, Sec.7 Chung Hsiao E. Rd., Taipei, Taiwan
Tel: 886-2-2782-9635
Fax: 886-2-2782-9636
Fax: 886-2-2782-7128 (International sales hotline)
Holtek Semiconductor (Shanghai) Inc.
7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China
Tel: 021-6485-5560
Fax: 021-6485-0313
http://www.holtek.com.cn
Holtek Semiconductor (Hong Kong) Ltd.
RM.711, Tower 2, Cheung Sha Wan Plaza, 833 Cheung Sha Wan Rd., Kowloon, Hong Kong
Tel: 852-2-745-8288
Fax: 852-2-742-8657
Holmate Semiconductor, Inc.
48531 Warm Springs Boulevard, Suite 413, Fremont, CA 94539
Tel: 510-252-9880
Fax: 510-252-9885
http://www.holmate.com
Copyright Ó 2002 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 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. 1.00
7
October 24, 2002