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TDA7496AL(20SOP) [UTC]

Audio Amplifier, 2 Func, Bipolar, PDSO20;
TDA7496AL(20SOP)
型号： TDA7496AL(20SOP)
厂家： Unisonic Technologies    Unisonic Technologies
描述：

Audio Amplifier, 2 Func, Bipolar, PDSO20

光电二极管
文件： 总7页 (文件大小：218K)
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UTCTDA7496A  
LINEAR INTEGRATED CIRCUIT  
2W+2W AMPLIFIER WITH DC VOLUME  
CONTROL  
DESCRIPTION  
The UTC TDA7496A is a stereo 2W+2W class AB power  
amplifier, specially designed for high quality sound, TV and  
Monitor applications.  
DIP-20  
FEATURES  
*Low turn-on turn-off pop noise  
*Single supply up to 15V  
*Thermal overload and short circuit protection  
*Soft clipping  
*Internally fixed gain  
*ST-BY and mute functions  
SOP-20  
*Built-in linear volume control  
*2W+2W output power: RL=8Ω@THD=10%,VCC=14V  
*Pb-free plating product number: TDA7496AL  
PIN CONNECTION  
1
2
20  
19  
18  
17  
GND  
GND  
GND  
GND  
GND  
3
4
GND  
INL  
VAROUT_L  
VOLUME  
OUTL  
Vs  
Vs  
5
6
7
16  
15  
14  
13  
12  
11  
OUTR  
GND  
MUTE  
STBY  
VAROUT_R  
N.C.  
8
9
INR  
SVR  
10  
UTC UNISONIC TECHNOLOGIES CO., LTD.  
1
www.unisonic.com.tw  
QW-R107-024,B  
UTCTDA7496A  
LINEAR INTEGRATED CIRCUIT  
BLOCK DIAGRAM  
Vs  
15,16  
VAROUT_R  
7
GND  
1,2,3,13  
VOLUME  
18,19,20  
INR  
1000µ F  
OUTR  
14  
+
-
470nF  
30K  
OP AMP  
S1 ST-BY  
S2 MUTE  
+5V  
STBY  
MUTE  
11  
12  
17  
MUTE/STBY  
10K  
S_GND  
PROTECTIONS  
1µ F  
+5V  
60K  
VOLUME  
30K  
4
OUTL  
INL  
+
-
470nF  
SVR  
1000µ F  
OP AMP  
10  
5
6
470µ F  
VOLUME  
+5V  
VAROUT_L  
300K  
100nF  
UTC UNISONIC TECHNOLOGIES CO., LTD.  
2
www.unisonic.com.tw  
QW-R107-024,B  
UTCTDA7496A  
LINEAR INTEGRATED CIRCUIT  
ABSOLUTE MAXIMUM RATINGS  
PARAMETER  
DC Supply Voltage  
Maximum Input Voltage  
Total Power Dissipation (Tcase =60℃)  
Ambient Operating Temperature  
Junction Temperature  
Storage Temperature  
SYMBOL  
VS  
RATINGS  
UNIT  
V
26  
8
6
VIN  
Ptot  
Ta  
Tj  
Tstg  
V6  
Vpp  
W
℃
0 ~ 70  
0 ~ +125  
-40 ~ +150  
7
℃
℃
Volume CTRL DC voltage  
V
ELECTRICAL CHARACTERISTICS  
(Refer to the test circuit VS = 14V, RL = 8Ω, Rg = 50Ω, Ta = 25℃).  
PARAMETER  
Supply Voltage Range  
Quiescent Current  
Output DC Offset Referred to  
SVR Potenial  
SYMBOL  
TEST CONDITIONS  
MIN  
10  
TYP  
MAX  
18  
50  
UNIT  
V
mA  
VS  
IQ  
25  
200  
7
No Input Signal  
DCVOS  
VO  
mV  
V
Quiescent Output Voltage  
THD=10%, RL=8Ω  
THD=1%, RL=8Ω  
GV=30dB, Po=1W, f=1KHz  
(internally limited)  
Output Power  
PO  
W
1.7  
0.9  
Total Harmonic Distortion  
Output Peak Current  
Input Signal  
Closed Loop Gain  
Monitor Out Gain  
Attenuation at Minimum  
Volume  
THD  
Ipeak  
Vin  
GV  
GVline  
0.4  
%
A
Vrms  
dB  
0.7  
2.8  
31.5  
1.5  
Vol Ctrl>4.5V  
Vol Ctrl>4.5V, Zload>30kΩ  
28.5  
-1.5  
30  
0
dB  
Amin Vol  
BW  
Vol Ctrl<0.5V  
80  
dB  
MHz  
µV  
Bandwidth  
0.6  
f=20Hz to 22KHz  
Play,max volume  
f=20Hz to 22KHz  
Play,max attenuation  
f=20Hz to 22KHz, Mute  
500  
800  
Total Output Noise  
eN  
100  
250  
150  
µV  
60  
8
30  
30  
µV  
V/µs  
kΩ  
Slew Rate  
Input Resistance  
Variable Output Resistance  
Variable Output Load  
SR  
Ri  
5
22.5  
Rvar Out  
Rload var Out  
100  
Ω
2
kΩ  
f=1kHz, max volume  
35  
39  
65  
C
SVR=470µF, VRIP=1Vrms  
Supply Voltage Rejection  
SVR  
dB  
f=1kHz, max attenuation  
CSVR=470µF, VRIP=1Vrms  
55  
Thermal Muting  
Thermal Shut-down  
TM  
TS  
150  
160  
°C  
°C  
MUTE STAND-BY & INPUT SELECTION FUNCTIONS  
Stand-by ON Threshold  
Stand-by OFF Threshold  
Mute ON Threshold  
VST ON  
VST OFF  
VM ON  
3.5  
3.5  
V
V
V
V
1.5  
1.5  
Mute OFF Threshold  
VM OFF  
UTC UNISONIC TECHNOLOGIES CO., LTD.  
3
www.unisonic.com.tw  
QW-R107-024,B  
UTCTDA7496A  
LINEAR INTEGRATED CIRCUIT  
PARAMETER  
Quiescent Current@Stand-by  
Mute Attenuation  
SYMBOL  
IQST-BY  
AMUTE  
TEST CONDITIONS  
MIN  
50  
TYP  
0.6  
65  
MAX  
1
UNIT  
mA  
dB  
Stand by on VST-BY=5V  
80  
µA  
Stand-by bias current  
Mute bias current  
IstbyBIAS  
VMUTE=5V  
Play or Mute  
Mute  
Play  
-20  
-5  
1
0.2  
µA  
µA  
µA  
5
2
ImuteBIAS  
APPLICATION SUGGESTIONS  
The recommended values of the external components are those shown on the application circuit of figure 1.  
Different values can be used, the following table can help the designer.  
SUGGESTION  
VALUE  
300K  
LARGER THAN  
SUGGESTION  
Larger volume regulation time Smaller volume regulation time  
SMALLER THAN  
SUGGESTION  
COMPONENT  
PURPOSE  
R1  
R2  
P1  
C1  
C2  
C3  
C4  
Volume control circuit  
Mute time constant  
Volume control circuit  
Supply voltage bypass  
Input DC decoupling  
Input DC decoupling  
Ripple rejection  
10K  
50K  
Larger mute on/off time  
Smaller mute on/off time  
1000µF  
470nF  
470nF  
470µF  
Danger of oscillation  
Higher low frequency cutoff  
Higher low frequency cutoff  
Worse SVR  
Lower low frequency cutoff  
Lower low frequency cutoff  
Better SVR  
Volume control time  
Constant  
Larger volume regulation time Smaller volume regulation time  
C5  
100nF  
C6  
C7  
C8  
C9  
1000µF  
1µF  
1000µF  
100nF  
Output DC decoupling Lower low frequency cutoff  
Mute time constant Larger mute on/off time  
Output DC decoupling Lower low frequency cutoff  
Supply voltage bypass  
Higher low frequency cutoff  
Smaller mute on/off time  
Higher low frequency cutoff  
Danger of oscillation  
UTC UNISONIC TECHNOLOGIES CO., LTD.  
4
www.unisonic.com.tw  
QW-R107-024,B  
UTCTDA7496A  
LINEAR INTEGRATED CIRCUIT  
+Vs  
C9  
C1  
0.1μF  
1000μF  
VAROUT R  
7
Vs  
PW_GND 1,2,3,13  
15,16  
18,19,20  
9
μF  
VOLUME  
1000  
PW_GND  
OUTR  
C8  
14  
+
-
INR  
C2  
470 nF  
30K  
OPAMP  
S1 STBY  
+5V  
11  
12  
MUTE/STBY  
S_GND  
R2 10K  
PROTECTIONS  
C7  
μF  
+5V  
VOLUME  
60 K  
1
S2 MUTE  
OUTL  
PW_GND  
4
17  
INL  
+
-
C3  
C6  
1000μF  
30K  
OPAMP  
470nF  
SVR 10  
C4  
470μF  
6
5
VOLUME  
VAROUT_L  
+5V  
VOL  
P1  
C5  
100 nF  
R1  
50 K  
LOG  
300K  
TP1  
FIGURE 1. APPLICATIONCIRCUIT  
MUTE STAND-BY TRUTH TABLE  
MUTE  
ST-BY  
OPERATING CONDITION  
STANDBY  
H
L
H
L
H
H
L
STANDBY  
MUTE  
PLAY  
L
UTC UNISONIC TECHNOLOGIES CO., LTD.  
5
www.unisonic.com.tw  
QW-R107-024,B  
UTCTDA7496A  
LINEAR INTEGRATED CIRCUIT  
TURN ON/OFF SEQUENCES (FOR OPTIMIZING THE POP PERFORMANCES)  
(A) USING MUTE AND STAND-BY FUNCTIONS  
Vs(V)  
ST-BY  
pin#11(V)  
VSVR  
pin#10(V)  
2.5  
MUTE  
pin#12(V)  
5
INPUT  
(mV)  
VOUT  
(V)  
MUTE  
STBY  
OFF  
OFF STBYMUTE  
PLAY  
IQ  
(mA)  
(B) USING ONLY THE MUTE FUNCTION  
To simplify the application, the stand-by pin can be connected directly to Ground. During the ON/OFF transitions is  
recommend to respect the following conditions.  
At the turn-on, the transition mute - play must be made when the SVR pin is higher than 2.5V.  
At the turn-off, the UTC TDA7496A must be brought to mute from the play condition when the SVR pin is higher than  
2.5V.  
UTC UNISONIC TECHNOLOGIES CO., LTD.  
6
www.unisonic.com.tw  
QW-R107-024,B  
UTCTDA7496A  
LINEAR INTEGRATED CIRCUIT  
Quiescent Current vs. Supply Voltage  
Output DC Offset vs. Supply Voltage  
Vi=0  
Vi=0  
550  
500  
450  
400  
350  
300  
250  
50  
45  
40  
35  
30  
25  
200  
150  
100  
20  
15  
12 14 16  
22 24 26  
12 14 16  
22 24 26  
10  
18 20  
10  
18 20  
Supply Voltage (V)  
Supply Voltage (V)  
Output Dc Offset vs. Supply Voltage  
Vi=0  
16  
15  
14  
13  
12  
11  
10  
9
8
7
6
5
4
12 14 16  
22 24 26  
10  
18 20  
Supply Voltage (V)  
UTC assumes no responsibility for equipment failures that result from using products at values that  
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or  
other parameters) listed in products specifications of any and all UTC products described or contained  
herein. UTC products are not designed for use in life support appliances, devices or systems where  
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in  
whole or in part is prohibited without the prior written consent of the copyright owner. The information  
presented in this document does not form part of any quotation or contract, is believed to be accurate  
and reliable and may be changed without notice.  
UTC UNISONIC TECHNOLOGIES CO., LTD.  
7
www.unisonic.com.tw  
QW-R107-024,B  

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