TC1043CEQRTR Microchip Technology, TC1043CEQRTR Datasheet - Page 11

• Manufacturer Part Number: TC1043CEQRTR
• Description: IC DUAL OPAMP/COMP W/VREF 16QSOP
• Manufacturer: Microchip Technology
• Type: Amplifier, Comparator, Referencer

Specifications of TC1043CEQRTR

• Package / Case: 16-QSOP
• Applications: General Purpose
• Mounting Type: Surface Mount
• Number Of Channels: 2 Channels
• Output Type: Push-Pull
• Response Time: 4 us
• Offset Voltage (max): 1.5 mV
• Input Bias Current (max): 100 pA
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Supply Current (max): 30 uA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 4-8:
FIGURE 4-9:
©
2002 Microchip Technology Inc.
V
C
C1
PULSE WIDTH MODULATOR
MULTI-POLE BUTTERWORTH VOICE BAND RECEIVE FILTER
10k
R6
Passband Ripple
< 0.15 dB
Fch = 3.5kHz
-24 dB/Octave
Fcl = 70Hz
+6 dB/Octave
Gain = 0 dB
V
IN
2400 pF
21.0k
100k
R1
100k
R2
V
DD
Comparator
21.0k
TC1043
0.1 µF
TC1043
+
–
100k
R3
6800 pF
V
Two (2) TC1043 Op Amps
DD
21.0k
470 pF
R4
22.6k
V
DD
For Square Wave Generation,
Select R1 = R2 = R3
V
FREQ =
/2
V
V
H
L
C
=
=
=
V
+
+
V DD (R 1 R 2 R 6 + R 2 R 3 R 6 ) + V C (R 1 R 2 R 3 )
DD
–
–
V
V
R 1 R 2 R 6 + R 1 R 3 R 6 + R 2 R 3 R 6 + R 1 R 2 R 3
2
R 1 R 2 R 6 + R 1 R 3 R 6 + R 2 R 3 R 6 + R 1 R 2 R 3
DD
DD
2 (0.694) (R4) (C1)
V DD (R 2 R 3 R 6 ) + V C (R 1 R 2 R 3 )
750 pF
22.6k
1
V
OUT
TC1043
DS21347B-page 11