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TDA1905 Fiches technique(PDF) 5 Page - STMicroelectronics

No de pièce TDA1905
Description  5W AUDIO AMPLIFIER WITH MUTING
Download  14 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA1905 Fiches technique(HTML) 5 Page - STMicroelectronics

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Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
BW
Small signal
bandwidth (-3dB)
Vs = 14V
RL =4
Po = 1W
40 to 40,000
Hz
Gv
Voltage gain (open loop)
Vs = 14V
f = 1KHz
75
dB
Gv
Voltage gain (closed loop)
Vs = 14V
f = 1KHz
RL =4
Po =1W
39.5
40
40.5
dB
eN
Total input noise
Rg =50
Rg =1K
Rg = 10K
(
°)
1.2
1.3
1.5
4.0
µV
Rg =50
Rg =1K
Rg = 10K
(
°°)
2.0
2.0
2.2
6.0
µV
S/N
Signal to noise ratio
Vs = 14V
Po = 5.5W
RL =4
Rg = 10K
Rg =0
(
°)
90
92
dB
Rg = 10K
Rg =0
(
°°)
87
87
dB
SVR
Supply voltage rejection
Vs = 18V
RL =8
fripple = 100 Hz
Rg = 10K
Vripple = 0.5Vrms
40
50
dB
Tsd
Thermal shut-down
case temperatura
(*)
Ptot = 2.5W
115
°C
MUTING FUNCTION
VTOFF
Muting-off threshold
voltage (pin 4)
1.9
4.7
V
VTON
Muting-on threshold
voltage (pin 4)
0
1.3
V
6.2
Vs
R5
Input-resistance (pin 5)
Muting off
80
200
K
Muting on
10
30
R4
Input resistance (pin 4)
150
K
AT
Muting attenuation
Rg +R1 = 10K
50
60
dB
ELECTRICAL CHARACTERISTICS (continued)
Note:
(
°)
Weighting filter = curve A.
(
° °) Filter with noise bandwidth: 22 Hz to 22 KHz.
(*)
See fig. 30 and fig. 31
5/14
TDA1905


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