FREQUENCY CONTROL PRODUCTS
SURFACE MOUNT LOW POWER VC-TCXO
TYPES DFAV S7-KHZ (5 V) & DFAV S7-LHZ (3.3 V)
RECOMMENDED FOR NEW DESIGNS
12.9± 0.2
19.9± 0.1
SURFACE MOUNTABLE PACKAGE
5 V OR 3.3 V SUPPLY VOLTAGE
WIDE PULLING RANGE
LOW AGEING
7.62
1.27
1.6
18.4
1.2
Function
V control
DFAV S7
1
2
3
4
5
6
7.8± 0.1
19.0
GND
N/C
Output
Vcc
E/D
5
7.62
1.3
4
3
2
PC board footprint
6
1
2.6
TYPE
Frequency Range
DFAV S7-KHZ
2 to 50 MHz
DFAV S7-KOZ
2 to 50 MHz
DFAV S7-LHZ
2 to 45 MHz
DFAV S7-LOZ
2 to 45 MHz
ELECTRICAL SPECIFICATIONS
supply voltage
supply current ( no load)
≤
25 MHz
≤
35 MHz
> 35 MHz
5V±5%
≤
20 mA
≤
30 mA
≤
40 mA
HCMOS 15 pF
or 2 TTL
≤
45/55...55/45 %
≤
10 ns
≥
3.5 V/
≤
0.5 V
≤
10 ms @ 4.75V
5V±5%
≤
20 mA
≤
30 mA
≤
40 mA
clipped sine
20kΩ//5 pF
≥
2 V p-p
≤
10 ms @ 4.75V
3.3 V ± 5 %
≤
10 mA
≤
15 mA
≤
20 mA
HCMOS 15 pF
or 1 TTL
≤
45/55...55/45 %
≤
10 ns
≥
2.7 V/
≤
0.2 V
≤
10 ms @ 3.15V
3.3 V ± 5 %
≤
10 mA
≤
15 mA
≤
20 mA
clipped sine
20kΩ//5 pF
≥
1.5 V p-p
≤
10 ms @ 3.15V
output load
duty cycle @ 2.5V (LH @ 1.65 V)
rise/fall times (10 to 90 %)
high/low levels or output amplitude
start-up
tri-state control on pin 6
Remarks
High or open = enable, low = high Z
duty cycle for frequencies > 30 MHz is 40/60%…60/40%
FREQUENCY STABILITY
Types
all types
temperature
range
-10 to 60°C
-20 to 70°C
model
code
40D1
40C2
detailed tolerances [ ppm ]
stability versus:
pulling range
temp.
@ 25°C Vcc range load ± 10 %
ageing
positive function
≤
±1
≤
±1
≤
± 0.2
≤
± 0.3
≤
±1
≥
± 40
≤
±2
control voltage range: DFAV S7-K / 2.5 V ± 2 V, DFAV S7-L/ 1.5 V
±
1.5 V
input impedance
≥
10 kΩ
temperature stability is guaranteed @ 2.5 V control voltage
st
ageing is 1 year at 25°C
Remarks
OPTIONS
internal trimmer
CODE
A
≥
± 5 ppm
ORDERING CODE
Example
type + option code + frequency + model code
DFAV S7-KHZ 19.440 MHz 40D1
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