UPC1944T-E2 Просмотр технического описания (PDF) - NEC => Renesas Technology
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UPC1944T-E2 Datasheet PDF : 12 Pages
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µ PC1943,1944
IREF vs TA
IKoff vs TA
4.0
0.2
VKA = VREF, IK = 10 mA,
VKA = 24 V
R1 = 10 kΩ, R2 = ∞
VREF = 0 V
3.0
2.0
0.1
1.0
0 −20 0 20 40 60 80 100 120
TA - Operating Ambient Temperature - °C
Av, φ vs f
60
+90
Av
40
0
0 −20 0 20 40 60 80 100 120
TA - Operating Ambient Temperature - °C
| ZKA | vs f
50
VKA = VREF
1mA ≤ IK ≤ 30 mA
10
φ
20
220 Ω
0
IK
υo
υin
10 kΩ
10 kΩ
−201k
(IK = 10 mA)
10k
100k
1M
f - Frequency - Hz
−90
−180
10M−270
1.0
0.1
1k
10k
100k
1M
10M
f - Frequency - Hz
2.0
1.8
a: VKA = VREF
b: VKA = 3 V
1.6 c: VKA = 5 V
Stability Area
1.4
1.2
a
1.0
Stable
c
0.8
0.6
0.4
0.2
0
0.001
b
Unstable
0.01
0.1
1
CKA - Lode Capacitance - µ F
Stable
10
Test Circuit
a:
150 Ω
IKA
CKA
b, c:
150 Ω
IKA
R
CKA
10 kΩ
CKA: Monolithic Ceramic Capacitor
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.
Data Sheet G10239EJ3V0DS00
5
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