OSC P2

OSC P1

OSC P0

F

|

F

|

Skew

1

100

2 F

|

§

·

u

¨

¸

©

¹

OSC P2

OSC P1

OSC P0

F

|

F

|

L.D.B.W

100

F

|

u

LMC567

www.ti.com

SNOSBY1C – JUNE 1999 – REVISED DECEMBER 2015

Electrical Characteristics (continued)

Test Circuit, TA = 25°C, Vs = 5 V, RtCt #2, Sw. 1 Pos. 0, and no input, unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Vs = 2 V

11

20

27

Set input frequency equal to f0 measured

Vin

Input threshold

above. Increase input level until pin 8 goes

Vs = 5 V

17

30

45

mVrms

low.

Vs = 9 V

45

Starting at input threshold, decrease input

ΔVin

Input hysteresis

1.5

mVrms

level until pin 8 goes high.

I8 = 2 mA

0.06

0.15

Input level > threshold

V8

Output sat voltage

Vdc

Choose RL for specified I8.

I8 = 20 mA

0.7

Measure Fosc with Sw. 1 in

Vs = 2 V

7%

11%

15%

Pos. 0, 1, and 2;

Largest detection

Vs = 5 V

11%

14%

17%

L.D.B.W.

bandwidth

Vs = 9 V

15%

(2)

ΔBW

Bandwidth skew

0%

±1.0%

(3)

Highest center

RtCt #3

fmax

700

kHz

frequency

Measure oscillator frequency and divide by 2.

Set input frequency equal to fmax measured above. Increase

Vin

Input threshold at fmax

35

mVrms

input level until pin 8 goes low.

Copyright © 1999–2015, Texas Instruments Incorporated

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