TLC04/MF4A-50, TLC14/MF4A-100

BUTTERWORTH FOURTH-ORDER LOW-PASS

SWITCHED-CAPACITOR FILTERS

SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995

1

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

D Low Clock-to-Cutoff-Frequency Ratio Error

TLC04/MF4A-50...

±0.8%

TLC14/MF4A-100 . . .

±1%

D Filter Cutoff Frequency Dependent Only on

External-Clock Frequency Stability

D Minimum Filter Response Deviation Due to

External Component Variations Over Time

and Temperature

D Cutoff Frequency Range From 0.1 Hz

to 30 kHz, VCC± = ±2.5 V

D 5-V to 12-V Operation

D Self Clocking or TTL-Compatible and

CMOS-Compatible Clock Inputs

D Low Supply-Voltage Sensitivity

D 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.

AVAILABLE OPTIONS

CLOCK TO CUTOFF

PACKAGE

TA

CLOCK-TO-CUTOFF

FREQUENCY RATIO

SMALL OUTLINE

PLASTIC DIP

FREQUENCY RATIO

(D)

(P)

0

°C to 70°C

50:1

100:1

TLC04CD/MF4A-50CD

TLC14CD/MF4A-100CD

TLC04CP/MF4A-50CP

TLC14CP/MF4A-100CP

–40

°C to 85°C

50:1

100:1

TLC04ID/MF4A-50ID

TLC14ID/MF4A-100ID

TLC04IP/MF4A-50IP

TLC14IP/MF4A-100IP

–55

°C to 125°C

50:1

100:1

TLC04MP/MF4A-50MP

TLC14MP/MF4A-100MP

The D package is available taped and reeled. Add the suffix R to the device type (e.g., TLC04CDR/MF4A-50CDR).

Copyright

© 1995, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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2

3

4

8

7

6

5

CLKIN

CLKR

LS

VCC–

FILTER IN

VCC+

AGND

FILTER OUT

D OR P PACKAGE

(TOP VIEW)