CF5073 series
MEASUREMENT CIRCUITS
Measurement Circuit 1
Measurement Circuit 4
When
measuring VOL
R3
R2
VDD
IRB1
A
VDD
VSS
C1
Signal
XT
VC
Q
VC
Generator
VDD
IRB1
R1
RB1 =
VSS
When
measuring VOH
XTN
VDD
VOH
0V
Q output
VDD
VOL
0V
Q output
XT input signal: 2.5Vp-p, 10MHz, sine wave
C1 = 0.001ꢀF, R1 = 50Ω, R2 = 417Ω, R3 = 434Ω, V = 1.65V
C
Measurement Circuit 2
Measurement Circuit 5
A
VDD
C1
VDD
VSS
Signal
Generator
XT
INHN
Q
XT
INHN
X'tal
XTN
VC
VC
Q
R1
VSS
V
= 1.65V, INHN = open, crystal oscillation
XT input signal: 2.5Vp-p, 10MHz, sine wave
C1 = 0.001ꢀF, R1 = 50Ω, V = 1.65V
C
C
Measurement Circuit 3
Measurement Circuit 6
VDD
IRUP
RUP =
VDD
VDD
INHN
INHN
VC
VC
Q
A
IRUP
A
VSS
VSS
V
= 1.65V
V = 1.65V
C
C
NIPPON PRECISION CIRCUITS INC.—12
NPC [ NIPPON PRECISION CIRCUITS INC ]
