SM5073 Datasheet, PDF (12/14 Pages) Nippon Precision Circuits Inc – VCXO ICs with Built-in Varicap

MEASUREMENT CIRCUITS
Measurement Circuit 1
SM5073 series
Measurement Circuit 4
Signal
Generator
C1
R1
Q output
Q output
VDD
XT
Q
VC
VSS
R3 ^When
measuring VOL
R2 ^When
measuring VOH
VDD
VOH
0V
VDD
VOL
0V
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
IRB1 A
RB1 = ^VDD
IRB1
VDD
VC
XTN
VSS
Measurement Circuit 5
A
VDD
XT
INHN
X'tal
XTN
VC
Q
VSS
Signal
Generator
C1
R1
VDD
XT
INHN
VC
Q
VSS
V_C = 1.65V, INHN = open, crystal oscillation
Measurement Circuit 3
XT input signal: 2.5Vp-p, 10MHz, sine wave
C1 = 0.001µF, R1 = 50Ω, V_C = 1.65V
Measurement Circuit 6
VDD
INHN
VC
VSS
RUP = ^VDD
IRUP
A IRUP
VDD
INHN
VC
Q
A
VSS
V_C = 1.65V
V_C = 1.65V
SEIKO NPC CORPORATION —12