Datasheet

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TLC04/MF4A-50, TLC14/MF4A-100

BUTTERWORTH FOURTH-ORDER LOW-PASS

SWITCHED-CAPACITOR FILTERS

SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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, V

CC±

= ±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.

AVAILABLE OPTIONS

CLOCK TO CUTOFF

PACKAGE

CLOCK

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).

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.

CLKIN

CLKR

CC–

FILTER IN

CC+

AGND

FILTER OUT

D OR P PACKAGE

(TOP VIEW)

Summary of content (14 pages)

PAGE 1
TLC04/MF4A-50, TLC14/MF4A-100 BUTTERWORTH FOURTH-ORDER LOW-PASS SWITCHED-CAPACITOR FILTERS SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995 D D D D D D D D D OR P PACKAGE (TOP VIEW) 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.
PAGE 2
TLC04/MF4A-50, TLC14/MF4A-100 BUTTERWORTH FOURTH-ORDER LOW-PASS SWITCHED-CAPACITOR FILTERS SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995 functional block diagram LS CLKIN CLKR Level Shift 3 1 2 Nonoverlapping Clock Generator φ1 FILTER IN AGND 8 φ2 Butterworth Fourth-Order Low-Pass Filter 6 5 FILTER OUT Terminal Functions TERMINAL NAME NO. I/O DESCRIPTION AGND 6 I Analog ground. The noninverting input to the operational amplifiers of the Butterworth fourth-order low-pass filter.
PAGE 3
TLC04/MF4A-50, TLC14/MF4A-100 BUTTERWORTH FOURTH-ORDER LOW-PASS SWITCHED-CAPACITOR FILTERS SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC± (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 7 V Operating free-air temperature range, TA: TLC04C/MF4A-50C, TLC14C/MF4A-100C . . . . . .
PAGE 4
TLC04/MF4A-50, TLC14/MF4A-100 BUTTERWORTH FOURTH-ORDER LOW-PASS SWITCHED-CAPACITOR FILTERS SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995 electrical characteristics over recommended operating free-air temperature range, VCC+ = 5 V, VCC– = –5 V, fclock ≤ 250 kHz (unless otherwise noted) filter section VOO TLC04/MF4A-50 TYP† MAX TEST CONDITIONS PARAMETER MIN Output offset voltage VOM Peak output voltage IOS Short circuit output current Short-circuit TLC14/MF4A-100 TYP† MAX UNIT 200 mV MIN 150
PAGE 5
TLC04/MF4A-50, TLC14/MF4A-100 BUTTERWORTH FOURTH-ORDER LOW-PASS SWITCHED-CAPACITOR FILTERS SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995 operating characteristics over recommended operating free-air temperature range, VCC+ = 2.5 V, VCC– = –2.
PAGE 6
TLC04/MF4A-50, TLC14/MF4A-100 BUTTERWORTH FOURTH-ORDER LOW-PASS SWITCHED-CAPACITOR FILTERS SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995 TYPICAL CHARACTERISTICS FILTER OUTPUT vs SUPPLY VOLTAGE VCC+ RIPPLE FREQUENCY 0 VCC+ = 5 V + 50-mV Sine Wave (0 to 40 kHz) VCC – = – 5 V Filter in at 0 V fclock = 250 kHz Filter Output – dB – 10 – 20 – 30 – 40 – 50 – 60 0 5 10 15 20 25 30 35 40 Supply Voltage VCC+ Ripple Frequency – kHz Figure 1 FILTER OUTPUT vs SUPPLY VOLTAGE VCC – RIPPLE FREQUENCY 0 VCC+ = 5 V
PAGE 7
TLC04/MF4A-50, TLC14/MF4A-100 BUTTERWORTH FOURTH-ORDER LOW-PASS SWITCHED-CAPACITOR FILTERS SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995 APPLICATION INFORMATION 5V 7 VCC+ CMOS CLKIN 5V –5 V 3 LS 1 CLKIN 2 CLKR Level Shift Nonoverlapping Clock Generator φ1 8 FILTER IN 6 AGND φ2 Butterworth Fourth-Order Low-Pass Filter 5 FILTER OUT VCC – 4 –5 V Figure 3.
PAGE 8
TLC04/MF4A-50, TLC14/MF4A-100 BUTTERWORTH FOURTH-ORDER LOW-PASS SWITCHED-CAPACITOR FILTERS SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995 APPLICATION INFORMATION 5V 7 VCC+ R 3 LS 1 CLKIN 2 CLKR Level Shift C Nonoverlapping Clock Generator φ1 Filter Input 8 FILTER IN 6 AGND φ2 Butterworth Fourth-Order Low-Pass Filter FILTER OUT 5 Filter Output VCC – 4 –5 V f clock + ƪǒ Ǔǒ Ǔƫ 1 V RC In V –V CC IT– –V CC IT ) V ) IT V IT– For VCC = 10 V fclock = 1 1.69 RC Figure 5.
PAGE 9
TLC04/MF4A-50, TLC14/MF4A-100 BUTTERWORTH FOURTH-ORDER LOW-PASS SWITCHED-CAPACITOR FILTERS SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995 APPLICATION INFORMATION 10 V 7 VCC+ 3 LS 1 CLKIN 2 CLKR Level Shift 10 V CMOS CLKIN See Note A 0V –5 V TTL CLKR Nonoverlapping Clock Generator 10 kΩ 0V FILTER IN (see Note B) φ1 5 VOC 8 FILTER IN 6 AGND φ2 Butterworth Fourth-Order Low-Pass Filter FILTER OUT 5 VCC – 0.1 µF 4 10 kΩ See Note C NOTES: A.
PAGE 10
TLC04/MF4A-50, TLC14/MF4A-100 BUTTERWORTH FOURTH-ORDER LOW-PASS SWITCHED-CAPACITOR FILTERS SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995 APPLICATION INFORMATION 10 V 7 VCC+ R 3 LS 1 CLKIN 2 CLKR Level Shift Nonoverlapping Clock Generator C φ1 10 kΩ 8 FILTER IN 6 AGND Butterworth Fourth-Order Low-Pass Filter φ2 FILTER OUT VCC – 4 10 kΩ 0.1 µF See Note A f clock + ƪǒ Ǔǒ Ǔƫ 1 V RC In V –V CC IT– –V CC IT ) V ) IT V IT– For VCC = 10 V fclock = 1 1.
PAGE 11
TLC04/MF4A-50, TLC14/MF4A-100 BUTTERWORTH FOURTH-ORDER LOW-PASS SWITCHED-CAPACITOR FILTERS SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995 APPLICATION INFORMATION 5V 7 VCC+ Clock Input 3 LS 1 CLKIN 2 CLKR Level Shift Nonverlapping Clock Generator φ1 8 FILTER IN 6 AGND 10 kΩ Butterworth Fourth-Order Low-Pass Filter φ2 FILTER OUT 5 VCC – 0.1 µF 4 –5 V Figure 8.
PAGE 12
PACKAGE MATERIALS INFORMATION www.ti.com 11-Mar-2008 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel Diameter Width (mm) W1 (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TLC04IDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TLC14CDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.
PAGE 13
PACKAGE MATERIALS INFORMATION www.ti.com 11-Mar-2008 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TLC04IDR SOIC D 8 2500 346.0 346.0 29.0 TLC14CDR SOIC D 8 2500 346.0 346.0 29.
PAGE 14
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