CHT-CG-050 Datasheet, PDF (4/9 Pages) List of Unclassifed Manufacturers – Versatile High Temperature Clock Generator

CHT-CG-050 - Preliminary datasheet - Version 0.4 (08/2005)
4
AC Electrical Characteristics
Unless otherwise stated: V_DD=5V, T_j=25°C. Bold figures indicate values over the whole tem-
perature range (-30°C < T_j < +225°C).
Parameter
Condition
Min
Typ
Max Units
Frequency range
FIN
1
50
MHz
Duty cycle @ 50% VDD
DC^{b c}
FIN=1.8MHz, VDD = 5V
FIN=32MHz, VDD = 5V
47/53
48/52
45/55 ^%
Output rise time^d
10% to 90% VDD
tr
Output fall time^e
10% to 90% VDD
tf
FIN=50MHz, VDD = 5V
Vdd = 5V, ZLOAD = 1MΩ // 22pF
Vdd = 5V, ZLOAD = 600Ω // 15pF
Vdd = 5V, ZLOAD = 1MΩ // 22pF
Vdd = 5V, ZLOAD = 600Ω // 15pF
45/55
3.0
ns
2.5
2.5
ns
2.1
Oscillation established after
Vdd goes high^f
tpower-on
Oscillation established after
/XtalEn goes LOW^g
tstart-up
VDD from 0 to 5V
VDD = 5V
/XtalEn from LOW to HIGH
1.2
3.2
ms
0.6
1.4
ms
b _{Duty cycle is measured with a unitary division factor and ZLOAD = 1050Ω // 22pF.}
c _{Depends on used crystal and R2 value.}
d _{Depends on load conditions and DRI_0, DRI_1 settings.}
e _{Depends on load conditions and DRI_0, DRI_1 settings.}
f _{Depends on used crystal and XtalDR_0, XtalDR_1 settings.}
g _{Depends on used crystal and XtalDR_0, XtalDR_1 settings.}
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