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1-14
coupled.
1.5.14.2
Option 11 0.1 ppm Internal Reference
Frequency
10 MHz
Accuracy
± 1 x10
-8
Warm-Up Time
To within 1x10 in <3 minutes
-7
Temperature Stability
0.05 ppm, -10
E
C to 55
E
C
Short Term Stability
3 x 10 /second
-11
Aging
#
0.1 ppm/year
Internal Reference Output
1V
rms
nominal into 50
S
TTL/CMOS compatible
Voh
min
4.3V at -24 mA
Vol
max
0.44V at +24mA
Single Sideband (SSB) Phase Noise
-115dBc/Hz @ 10 Hz
-145dBc/Hz @ 100 Hz
-150dBc/Hz @ 1KHz, 10KHz
NOTE: Options 10 and 11 are mutually exclusive.
1.5.14.3
Option 41 1.3 GHz Input C
Factory installed option extending the counter range to 1.3 GHz.
Frequency Range:
40 MHz to 1.3 GHz
(Refer to Sections 1.5.1 and 1.5.3.2 for additional specifications.)
1.6
Definitions and Notes
1.6.1
Trigger Error
Trigger Error =
SQR ( e + e )
i
n
2
2
Input slew rate at trigger point
where e = input amplifier rms noise (typically 150
F
V, 450
F
V max. in a 160 MHz
i
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