3-48
Vol. 2
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DTCXO
QED 45-BH/BO
Typical value
QED 45-BH
QED 45-BO
at10 MHz
5 MHz to 20 MHz
Overall stability
≤ ±2 ppm
including
temperature variation, load variation ±10%, supply variation ±5%, ageing on 10 years
Input current
≤ 30 mA
Output levels
"0"
≤ 0.5 V / "1" ≥ 4.5 V
0 dBm
Load
5 TTL or 20 pF (HCMOS)
50
Duty cycle
50/50% ± 10%
N/A
Rise/Fall time
≤ 10 nS
N/A
Harmonics & Sub-Har.
N/A
≤-30 dBc
Package
Option P
page 3-54
Option
Description
The QED45-BO/BH series exhibit a lower phase noise
gure and a better ageing over 10 - 15 years by using a
special version of the compensation process and a quartz
resonator of high quality.
Frequency range
4 MHz to 60 MHz
Applications
SatCom base stations
Low phase noise requirement
Test equipment
Navigation devices
Features
Temperature ranges:
up to -40° C to +85° C
Frequency stability:
≤ ±0.2 ppm
Supply voltage:
+5 V ±5%
Input current:
≤ 50 mA
Frequency adjustment:
≥ ±2 ppm
Ageing:
≤ ±0.2 ppm/1st year
≤±1.5 ppm/10 years
Phase noise:
10 Hz
-95 dBc/Hz
@ 10 MHz
100 Hz
-125 dBc/Hz
1 kHz
-145 dBc/Hz
10 kHz
-150 dBc/Hz
Better phase noise on request
Start-up time:
≤ 10 S
LOW PHASE NOISE DTCXO
Table 1:
Other temperature ranges and stability available
QED45
Minimum ordering information requirement
Example: QED 45 - BO P 10 MHz DT47
Package
45 = standard (36 x 27)
Output
BO = Sine 50
BH = HCMOS
Option
P = External potentiometer or resistor 20k
V = External Control Voltage 0.5 V to 4.5 V
Temperature range
HQ = -20° C ~ +70° C
DT = -40° C ~ +85° C
"
Thermal stability
±0.2 ppm
"
±0.4 ppm
Note: 1. Options with the same marker may not be combined with
each other.