Q-Tech QT725C User Manual
Page 4
ms
10
STARTUP TIME
ppm
±10
70 °C ± 3°C
FREQUENCY AGING (AFTER 1 YEAR)
ppm
±1.5
70 °C ± 3°C
FREQUENCY AGING (AFTER 30 DAYS)
%
60/40
DUTY CYCLE
7/
nS
2.5
80 MHZ - 100 MHZ
7/
nS
3.5
12 MHZ - 80 MHZ
7/
nS
7
Below 12 MHZ
Output frequency:
RISE / FALL TIME
N/A
Squarewave
OUTPUT WAVEFORM
6/
Vdc
V
CC
x 0.9
OUTPUT VOLTAGE - LOGIC "1"
6/
Vdc
V
CC
x 0.1
OUTPUT VOLTAGE - LOGIC "0"
7/
-
CMOS
LOAD
mA
50
60 MHZ - 100 MHZ
mA
30
12 MHZ - 59.99 MHZ
mA
12
Less than 12 MHZ
Output frequency:
INPUT CURRENT
Measured without load at 5.5 Vdc
Vdc
5.5
5
4.5
SUPPLY VOLTAGE
8/
k
Ω
50
CONTROL VOLTAGE INPUT IMPEDANCE
8/
kHz
10
DC
MODULATION BANDWIDTH
%
±10
LINEARITY
-
Positive
TRANSFER FUNCTION
5/
PPM/VOL
T
120
80
TUNING SCALE FACTOR, AVERAGE
Vdc
5
0
CONTROL VOLTAGE (Vc) RANGE
4/
PPM
± 110
0 < Vc < 5
-55°C < T < +125°C
FREQUENCY DEVIATION
4/
PPM
± 25
Vc = 2.5 volts (center)
T = +25°C ± 2 °C
INITIAL FREQUENCY ACCURACY
1/
See Table I
FREQUENCY/TEMPERATURE STABILITY
MHz
100
3
FREQUENCY RANGE AVAILABLE
UNITS
MAX.
NOM.
MIN.
NOTES
LIMITS
TEST CONDITIONS 2/,3/
ELECTRICAL PARAMETER
TABLE Ill. ELECTRICAL PERFORMANCE CHARACTERISTICS
NOTES
1.
The limit for frequency/temperature stability shall be referenced to the output frequency at 25 °C with Vc = any constant value
within the control voltage range.
2.
Unless otherwise specified, the limits are over the full operating temperature range and under specified load conditions.
3.
Unless otherwise specified, all measurements are in accordance with MIL-PRF-55310.
4.
Referenced to nominal output frequency. Up to 30 days after shipment (does not include Aging). Center tuning voltage is
defined as Vc = 2.5 volts.
5.
Slope of linear estimate (least squares) for 0 < Vc < 5V.
6.
Voltage values are with respect to network ground terminal.
7.
A standard CMOS load of 10 kOhm || 15 pF shall be used. See MIL-PRF-55310/26 for CMOS waveform measurement
definitions.
8.
Tested at room temperature only.
Q-Tech Corporation
10150 W. Jefferson Blvd.
Culver City, CA. 90232
Specification number: QT725C rev A
Sheet 4 of 5