CF5034DA datasheet(5/6 Pages) NPC

5 / 6 page

CF5034 series

NIPPON PRECISION CIRCUITS INC.—5

FUNCTIONAL DESCRIPTION

Standby Function

When OE goes LOW, the oscillator stops and the

output pins (OUT, OUTN) become high impedance.

Power-saving Pull-up Resistor

The OE pin pull-up resistance changes in value in

response to the input level (HIGH or LOW). When

OE is LOW (standby state), the pull-up resistance

increases, thereby decreasing the current consump-

tion.

MEASUREMENT CIRCUITS

Measurement Circuit 1

Measurement Circuit 2

Measurement Circuit 3

Measurement Circuit 4

OUT, OUTN

Oscillator

HIGH (or open)

Either fO or fO/2

Normal operation

LOW

High impedance

Stopped

XIN input signal 500mVp-p, sine wave

C1: 0.001µF

R1: 50

Ω

VT: VCC − 2V

VOE: VCC, VIH, VIL

Signal

Generator

VCC

XIN

VCC2

OUT

GND

OUTN

VOE

A IEE1, IEE2

0.7VCC

VCC

VCC2

OUT

GND

OUTN

R1: 50

Ω, VT: VCC − 2V

R1: 50

Ω, VT: VCC − 2V

XOUT = HIGH: OUT pin is ﬁxed HIGH (VOH).

OUTN pin is ﬁxed LOW (VOL).

XOUT = LOW: OUT pin is ﬁxed LOW (VOL).

OUTN pin is ﬁxed HIGH (VOH).

VCC

XIN

XOUT

VCC2

OUT

GND

OUTN

VCC

XIN

XOUT

VCC2

OUT

GND

OUTN

TEST

CF5034DA Datasheet(PDF) 5 Page - Nippon Precision Circuits Inc

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