TDA7266S

Obsolete Product(s) - Obsolete Product(s)
+V
S
(V)
V
IN
(mV)
V
ST-BY
pin 7
I
q
(mA)
ST-BY
MUTE
PLAY MUTE ST-BY
+18
1.8
0.8
V
MUTE
pin 6
4.1
2.3
OFF
OFF
D96AU259
V
OUT
(V)
2.9
1.3
Figure 2:
Microprocessor Driving Signals.
(B) Low Cost Application
In low cost applications where the mP is not pre-
sent, the suggested circuit is shown in fig.3.
The St-by and mute terminals are tied together
and they are connected to the supply line via an
external voltage divider.
The device is switched-on/off from the supply line
and the external capacitor C4 is intended to delay
the St-by and mute threshold exceeding, avoiding
"Popping" problems.
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Obsolete Product(s) - Obsolete Product(s)
1
2
4
Vref
ST-BY
7
IN1
C3 0.22µF
V
CC
133
D95AU260B
+
-
-
+
OUT1+
OUT1-
15
14
12
MUTE
6
IN2
C5 0.22µF
+
-
-
+
OUT2+
OUT2-
8
9
S-GND
PW-GND
C1
470µF
C2
100nF
R1
47K
C4
10µF
R2
47K
Vs
Figure 3a:
Stand-alone Low-cost Application.
Figure 3b:
PCB and Component Layout of the Application Circuit (Fig. 1).
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0.010
0.1
1
10
100 1k 10k 20k
THD(%)
Vcc = 11 V
Rl = 8 ohm
Pout = 100mW
Pout = 2W
frequency (Hz)
Figure 4:
Distortion vs Frequency
-5.000
-4.000
-3.000
-2.000
-1.000
0.0
1.0000
2.0000
3.0000
4.0000
5.0000
10 100 1k 10k 100k
Level(dBr)
Vcc = 11V
Rl = 8 ohm
Pout = 1W
frequency (Hz)
Figure 5:
Gain vs Frequency
11.522.533.544.55
0
10
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
Attenuation (dB)
Vpin.6(V)
Figure 6:
Mute Attenuation vs. V pin.6
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4
0
10
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
Attenuation (dB)
Vpin.7 (V)
Figure 7:
Stand-By Attenuation vs Vpin.7
3456789101112131415161718
30
35
40
45
50
55
60
65
70
Iq (mA)
Vsupply(V)
Figure 8:
Quiescent Current vs. Supply Voltage
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TDA7266S

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Audio Amplifiers 5W Dual Bridge Amp
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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