TDA7496A(20SOP) [UTC]
Audio Amplifier, 2 Func, Bipolar, PDSO20;型号: | TDA7496A(20SOP) |
厂家: | Unisonic Technologies |
描述: | Audio Amplifier, 2 Func, Bipolar, PDSO20 放大器 光电二极管 商用集成电路 |
文件: | 总7页 (文件大小:218K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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.
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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
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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.
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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.
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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
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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.
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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.
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QW-R107-024,B
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