TDA7299 [STMICROELECTRONICS]
SOUND 2W MONO AMPLIFIER; 声音2W单声道放大器
| 型号： | TDA7299 |
| 厂家： | 
ST |
| 描述： | SOUND 2W MONO AMPLIFIER |
| 文件： | 总7页 (文件大小：96K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TDA7299
SOUND 2W MONO AMPLIFIER
■
■
■
■
■
■
Ω
CAN DELIVER 2W THD 10% 12V/8
INTERNAL FIXED GAIN 20dB
NO BOUCHEROT CELL
THERMAL PROTECTION
AC SHORT CIRCUIT PROTECTION
SVR CAPACITOR FOR BETTER
RIPPLEREJECTION
SO8 (4+4)
ORDERING NUMBER: TDA7299
■
■
LOW TURN-ON/OFF POP
STAND-BY MODE
DESCRIPTION
The device TDA7299 is a new technology Mono Au-
dio Amplifier in SO package specially designed for
12V sound cards application.
tion the device delivers a rail voltage swing without
need of boostrap capacitors.
Thanks to the fully complementary output configura-
BLOCK DIAGRAM
VS=12V
VS
100µF
0.1µF
IN
470µF
+
-
IN
OUT
SVR
8Ω
47µF
GND
D94AU160A
September 2002
1/7
TDA7299
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
18
Unit
V
V
S
Operating Supply Voltage
Output Put Peak Current
I
O
1.5
A
T
Operating Temperature Range
Junction Temperature
0 to 70
150
°C
°C
°C
op
T
j
T
stg
Storage Temperature Range
-40 to 125
PIN CONNECTION (Top view)
VS
OUT
SVR
IN
1
2
3
4
8
7
6
5
GND
GND
GND
GND
D94AU162
THERMAL DATA
Symbol
Parameter
Value
80
Unit
°C/W
°C/W
R
th j-amb
Thermal Resistance Junction to ambient (on PCB)
Thermal Resistance Junction to case
R
20
th j-case
ELECTRICAL CHARACTERISTICS
Ω
(T
= 25°C; V = 12V; R = 8 ; f = 1KHz; unless otherwise specified.)
amb
S
L
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
18
Unit
V
V
S
Supply Voltage Range
Quiescent Current
Stand-By Current
Quiescent Output Voltage
Voltage Gain
4.5
I
20
30
mA
mA
V
S
I
sb
Pin 2 shorted to GND
0.3
V
O
A
V
6
20
100
2
dB
KΩ
W
R
Input Impedance
Output Power
50
IN
P
O
THD = 10%
1.8
R = 4Ω, V = 8.5V, THD = 10%
2
W
L
S
2/7
TDA7299
ELECTRICAL CHARACTERISTICS (continued)
Ω
(T
= 25°C; V = 12V; R = 8 ; f = 1KHz; unless otherwise specified.)
amb
S
L
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
*)
P
V = 400mVp, THD < 2%, R = 4Ω
2
W
ot
i
L
Transient Output Power
Distortion
THD
SVR
P
= 1W
1
%
O
Supply Voltage Rejection
V
F
= 150mVrms;
= 1KHz
50
dB
ripple
ripple
E
Input Noise Voltage
Rg = 10KΩ; BW = 20Hz to 20KHz
1.5
5
1
µV
I
V
sb
Stand-By Enable Voltage
V
*) Limited by the RTH of the package
Figure 1. Application Circuit
VS=12V
VS
100µF
0.1µF
470µF
IN
IN
OUT
SVR
8Ω
STAND-BY
47µF
GND
VS
0.1µF
470µF
IN
IN
OUT
SVR
8Ω
STAND-BY
47µF
GND
D94AU161A
APPLICATION HINTS:
Ω
For 12V supply and 8 speaker application, its maximum power dissipation is about 1.8W.
Assumming that max ambient temperature is 70°C. required thermal resistance of the device and heat dissipat-
ing means must be equal to (150 - 70)/1.8 = 45°C/W.
Junction to pin thermal resistance of the package is about 20°C/W. That means external heat sink of about
25°C/W is required.
Cu ground plane of PCB can be used as heat dissipating means.
Stand-By switches must be able to discharge C current.
svr
3/7
TDA7299
Figure 2. On Board Copper Area
copper area
2 x 1 cm
Rth j-a = 60°C/W
TDA7299
Vcc = 12V
Rl = 4 ohm
Pout = 2W
Pd = 1.8W
∆
Tj = 108°C
∆Tpin = 82°C
copper area
3 x 3 cm
Rth j-a = 53°C/W
∆
∆
Tj = 96°C
Tpin = °70C
copper 35um
Figure 3. P vs Supply Voltage (Rload = 8Ω)
out
AUDIO PRECISION remote
LEVEL(W) vs measured
DMM(Vdc)
5
Pout(W)
THD = 10%
Power dissipation
limited
THD = 0.1%
1
Rload= 8 ohm
f = 1KHz
0.1
4.500
6.000
7.500
9.000
10.50
12.00
13.50
15.00
16.50
18.00
Vs (V)
Figure 4. P vs Supply Voltage (Rload = 4Ω)
out
AUDIO PRECISION remote
5
LEVEL(W) vs measured
DMM(Vdc)
Pout(W)
Power dissipation
limitation
THD = 10%
THD = 0. 1%
1
Current Limiter
Intervention
Rload = 4 OHM
f = 1KHz
0.1
4.500
6.000
7.500
9.000
10.50
12.00
13.50
15.00
16.50
18.00
Vs (V)
4/7
TDA7299
Figure 5. SVR vs Frequency
AUDIO PRECISION remote
XTALK(dB) vs measured
FREQ(Hz)
-30.00
-35.00
-40.00
-45.00
-50.00
-55.00
-60.00
-65.00
-70.00
-75.00
-80.00
S.V.R.(dB)
Vs = 4.5V
Vs = 12V
Vs = 9V
Vs = 18V
Rload = 4 OHM
SVR
C
= 47uF
Rs = 600OHM
Vrip = 0.5 Vrms
20
100
1k
10k
20k
Frequency (Hz)
5/7
TDA7299
mm
inch
DIM.
OUTLINE AND
MECHANICAL DATA
MIN. TYP. MAX. MIN. TYP. MAX.
A
a1
a2
a3
b
1.75
0.069
0.010
0.065
0.033
0.019
0.010
0.020
0.1
0.25 0.004
1.65
0.65
0.35
0.19
0.25
0.85 0.026
0.48 0.014
0.25 0.007
b1
C
0.5
0.010
c1
D (1)
E
45° (typ.)
4.8
5.8
5.0
6.2
0.189
0.228
0.197
0.244
e
1.27
3.81
0.050
0.150
e3
F (1)
L
3.8
0.4
4.0
0.15
0.157
0.050
0.024
1.27 0.016
0.6
M
SO8
S
8° (max.)
(1) D and F do not include mold flash or protrusions. Mold flash or
potrusions shall not exceed 0.15mm (.006inch).
6/7
TDA7299
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
© 2002 STMicroelectronics - All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
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