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Low Clock-to-Cutoff-Frequency Ratio Error

TLC04/MF4A-50 . . . ±0.8%

TLC14/MF4A-100 . . . ±1%

Filter Cutoff Frequency Dependent Only on

External-Clock Frequency Stability

Minimum Filter Response Deviation Due to

External Component Variations Over Time

and Temperature

Cutoff Frequency Range From 0.1 Hz

to 30 kHz, VCC± = ±2.5 V

5-V to 12-V Operation

Self Clocking or TTL-Compatible and

CMOS-Compatible Clock Inputs

Low Supply-Voltage Sensitivity

Designed to be Interchangeable With

National MF4-50 and MF4-100

description

The TLC04/MF4A-50 and TLC14/MF4A-100 are monolithic Butterworth low-pass switched-capacitor filters.

Each is designed as a low-cost, easy-to-use device providing accurate fourth-order low-pass filter functions in

circuit design configurations.

Each filter features cutoff frequency stability that is dependent only on the external-clock frequency stability. The

cutoff frequency is clock tunable and has a clock-to-cutoff frequency ratio of 50:1 with less than ±0. 8% error

for the TLC04/MF4A-50 and a clock-to-cutoff frequency ratio of 100:1 with less than ±1% error for the

TLC14/MF4A-100. The input clock features self-clocking or TTL- or CMOS-compatible options in conjunction

with the level shift (LS) terminal.

The TLC04C/MF4A-50C and TLC14C/MF4A-100C are characterized for operation from 0°C to 70°C. The

TLC04I/MF4A-50I and TLC14I/MF4A-100I are characterized for operation from –40°C to 85°C. The

TLC04M/MF4A-50M and TLC14M/MF4A-100M are characterized over the full military temperature range of

–55°C to 125°C.