UPC1944J datasheet(5/7 Pages) NEC

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Data Sheet G10239EJ3V0DS00

µµµµ PC1943,1944

20406080

100 120

1.0

−20

2.0

3.0

4.0

VKA = VREF, IK = 10 mA,

R1 = 10 k

Ω, R2 =

∞

TA - Operating Ambient Temperature -

°C

IREF vs TA

20406080

100 120

−20

0.1

0.2

VKA = 24 V

VREF = 0 V

TA - Operating Ambient Temperature -

°C

IKoff vs TA

10k

100k

10M

−20

−90

−180

−270

+90

f - Frequency - Hz

Av,

vs f

220

Ω

10 k

Ω

10 k

Ω

(IK = 10 mA)

υo

υin

10k

100k

10M

1.0

0.1

f - Frequency - Hz

| ZKA | vs f

VKA = VREF

1mA

≤ IK ≤ 30 mA

0.001

0.01

0.1

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

CKA - Lode Capacitance -

Stability Area

Test Circuit

b, c:

CKA: Monolithic Ceramic Capacitor

a: VKA = VREF

b: VKA = 3 V

c: VKA = 5 V

Unstable

Stable

150

Ω

IKA

CKA

150

Ω

10 k

Ω

IKA

Caution of Stability Area

If the Aluminum electrolytic capacitor is used, it should be kept CKA

≥ 6.8

µ F. When using plural different types of

capacitors, each capacitor is needed to be stable independently.

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