TS4994 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
TS4994 Datasheet PDF : 31 Pages
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TS4994
Application Component Information
1 Application Component Information
Components
CS
CB
RFEED
RIN
CIN
Functional Description
Supply Bypass capacitor which provides power supply filtering.
Bypass capacitor which provides half supply filtering.
Feedback resistor which sets the closed loop gain in conjunction with RIN
AV= Closed Loop Gain= RFEED/RIN.
Inverting input resistor which sets the closed loop gain in conjunction with RFEED.
Optional input capacitor making a high pass filter together with RIN. (fcl = 1 / (2 x Pi x RIN x CIN)
Figure 1. Typical Application DFN10 Version
Diff. input - Cin1 Rin1
220nF 20k
Cin2 Rin2
GND
Diff. Input + 220nF 20k
Optional
Cb
1u
GND
Rfeed1
20k
2 Vin-
4 Vin+
5 Bypass
Mode
3
Stdby
1
VCC
Cs
1u
9
GND
VCC
-
+
Bias
Standby
GND
7
GND
Rfeed2
20k
Vo+ 10
Vo-
6
8 Ohms
TS4994IQ
GND VCC GND VCC
Figure 2. Typical Application Mini-SO8 Version
Diff. input - Cin1 Rin1
220nF 20k
Cin2 Rin2
GND
Diff. Input +220nF 20k
Optional
Cb
1u
GND
Rfeed1
20k
2 Vin-
3 Vin+
4 Bypass
Stdby
1
VCC
Cs
1u
7
GND
VCC
-
Vo+ 8
+
Bias
Vo-
5
Standby
GND
6
GND Rfeed2
20k
TS4994IS
8 Ohms
GNDVCC
2/31
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