CF5073 series
MEASUREMENT CIRCUITS
Measurement Circuit 1
Measurement Circuit 4
R3
VDD
When
measuring
V
OL
Signal
Generator
C1
XT
R1
VC
VSS
Q
R2
I
RB1
A
VC
R
B1
=
V
DD
I
RB1
XTN
VDD
When
measuring
V
OH
Q output
V
DD
V
OH
0V
V
DD
V
OL
0V
VSS
Q output
XT input signal: 2.5Vp-p, 10MHz, sine wave
C1 = 0.001µF, R1 = 50Ω, R2 = 417Ω, R3 = 434Ω, V
C
= 1.65V
Measurement Circuit 2
Measurement Circuit 5
A
VDD
XT
X'tal
XTN
VC
VSS
Q
INHN
Signal
Generator
C1
XT
R1
VC
VDD
INHN
Q
VSS
V
C
= 1.65V, INHN = open, crystal oscillation
XT input signal: 2.5Vp-p, 10MHz, sine wave
C1 = 0.001µF, R1 = 50Ω, V
C
= 1.65V
Measurement Circuit 3
Measurement Circuit 6
R
UP
=
VDD
V
DD
I
RUP
VDD
INHN
INHN
VC
VSS
A
I
RUP
VC
VSS
Q
A
V
C
= 1.65V
V
C
= 1.65V
SEIKO NPC CORPORATION —12
SEIKO [ SEIKO EPSON CORPORATION ]
