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TC1043 Fiches technique(PDF) 11 Page - Microchip Technology

No de pièce TC1043
Description  Linear Building Block . Low Power Voltage Reference with Dual Op Amp, Dual Comparator, and Shutdown Mode
PDF  20 Pages
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Fabricant  MICROCHIP [Microchip Technology]
Site Internet  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC1043 Fiches technique(HTML) 11 Page - Microchip Technology

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© 2002 Microchip Technology Inc.
DS21347B-page 11
TC1043
FIGURE 4-8:
PULSE WIDTH MODULATOR
FIGURE 4-9:
MULTI-POLE BUTTERWORTH VOICE BAND RECEIVE FILTER
+
–
R6
10k
R4
VC
VDD
VDD
R1
100k
R3
100k
R2
100k
C1
FREQ =
1
2
2 (0.694) (R4) (C1)
For Square Wave Generation,
Select R1 = R2 = R3
TC1043
Comparator
VH =
VC =
VDD
VDD (R1R2R6 + R2R3R6) + VC (R1R2R3)
R1R2R6 + R1R3R6 + R2R3R6 + R1R2R3
VDD (R2R3R6) + VC (R1R2R3)
R1R2R6 + R1R3R6 + R2R3R6 + R1R2R3
VL =
VDD
VDD
+
–
+
–
VOUT
VIN
21.0k
21.0k
21.0k
2400 pF
470 pF
750 pF
VDD /2
6800 pF
0.1 µF
22.6k
22.6k
Gain = 0 dB
Fch = 3.5kHz
-24 dB/Octave
Fcl = 70Hz
+6 dB/Octave
Passband Ripple
< 0.15 dB
TC1043
Two (2) TC1043 Op Amps



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