Temperature Compensated Crystal Oscillators (VC)TCXO

(VC)TCXO's 

Temperature Compensated Crystal Oscillators 

(VC)TCXO 

Fordahl SMD 11 

5mm x 7mm 

Ceramic Package 


3.2 mm x 2.5 mm 


Fordahl SMD 7 

20 mm x 13 mm 

Epoxy / Metal Package 

(VC)TCXO SMD Packages 


5 mm x 3.2 mm 



2.5 mm x 2.0 mm 


Fordahl SMD 5 

14 mm x 9 mm 

Plastic Package 

(VC)TCXO Through Hole Packages 

Fordahl DIL 14 

20.3 mm x 12.7 mm 

Metal Package 

Fordahl SMD 2 

7 mm x 5 mm 

Epoxy Package 

Fordahl SMD 1 

14 mm x 9 mm 

Epoxy Package 

Fordahl SA - Erlenstrasse 31, 2555 Brügg, Switzerland - Phone +41 32 366 50 50 - Fax +41 32 366 50 59 - E-mail fordahl@fordahl.com

Series Output 

DFA S16-OV/LOV/UOV/LH 

Data Sheet 

DFA S15-OV/LOV/UOV 

Data Sheet 

DFA S11-OV/LOV/UOV 

Data Sheet 

DFA S2-KHZ/LHZ 

(Stratum III) 

Data Sheet 


(WiMax) 

Data Sheet 

DFA S2-KHZ/LHZ/KO/LO/UO 

Data Sheet 


(Stratum III) 

Data Sheet 


Data Sheet 

DFA S1-KHAZ/LHAZ 

Data Sheet 

HCMOS 

CLIP 

SINE 

CLIP 

SINE 

CLIP 

SINE 

HCMOS 

TTL 

HCMOS 

TTL 

HCMOS 

CLIP 

SINE 

HCMOS 

TTL 

Series Output 

DFA S7-CH/CLH 

Data Sheet 

DFA S7-KH(Z)/LH(Z)/KO/LO 

Data Sheet 


Data Sheet 


Frequency 

Range (MHz) 

10 to 30 

10 to 30 

10 to 30 

10 to 52 

SMD Models 

TCXO's 

Temperature ranges & 

stability (ppm) 

0 to 70°C | ±1.5 

-30 to 85°C | ±2.5 

0 to 70°C | ±1.5 

-30 to 85°C | ±2.5 

0 to 70°C | ±1.5 

-30 to 85°C | ±2.5 

0 to 70°C | .28 

-40 to 85°C | .28 

5 to 52 -40 to 85°C | ±8/10 Years 

5 to 52 

5 to 52 

HCMOS 5 to 52 

HCMOS 5 to 52 

Frequency 

Range (MHz) 

HCMOS 5 to 52 

HCMOS 

CLIP 

SINE 

2 to 52 

HCMOS 5 to 52 

Series Output 

DFAV S7-KH(Z)/LH(Z)/KO/LO 

Data Sheet 

HCMOS 

CLIP SINE 

-20 to 70°C | ±0.2 to ±1 

-40 to 85°C | ±0.5 to ±2 

0 to 70°C | 0.28 

-40 to 85°C | 0.28 

-20 to 70°C | ±0.2 to ±1 

-40 to 85°C | ±0.5 to ±2 

-20 to 70°C | ±1 

-40 to 85°C | ±2 



-20 to 70°C | ±0.2 to ±1 

-40 to 85°C | ±0.5 to ±2 

-20 to 70°C | ±1 to ±2 

-40 to 85°C | ±2 to ±5 

-20 to 70°C | ±0.2 to ±1 

-40 to 85°C | ±0.5 to ±2 

VC-TCXO's 

Frequency 

Range (Mhz) 

2 to 52 



-10 to 60°C | ±1 to ±2 

-20 to 70°C | ±2 to ±3 

Fordahl SA - Erlenstrasse 31, 2555 Brügg, Switzerland - Phone +41 32 366 50 50 - Fax +41 32 366 50 59 - E-mail fordahl@fordahl.com 

Size 

Size 

3.2 x 2.5 

mm 

ceramic 

5 x 3.2 

mm 

ceramic 

7 x 5 mm 

ceramic 

7 x 5 mm 

epoxy 

7 x 5 mm 

epoxy 

7 x 5 mm 

epoxy 

14 x 9 mm 

epoxy 

14 x 9 mm 

epoxy 

14 x 9 mm 

epoxy 

20 x 13 mm 

epoxy | metal 

20 x 13 mm 

epoxy | metal 

25 x 22 mm 

epoxy | metal 

Size 

20 x 13 mm 

epoxy | metal 

Supply 

Voltage (V) 

3.3 | 3.0 | 2.5 

5.0 | 3.3 | 3.0 

5.0 | 3.3 | 3.0 

5.0 | 3.3 

5.0 | 3.3 | 3.0 

5.0 | 3.3 | 3.0 

5.0 | 3.3 

5.0 | 3.3 

5.0 | 3.3 

Supply 

Voltage (V) 

5.0 | 3.3 

5.0 | 3.3 

5.0 | 3.3 

Supply 

Voltage(V) 

5.0 | 3.3

Series Output 

DFA 14-CH/CLH 

(Stratum III) 

Data Sheet 

DFA 14-CH/CLH 

Data Sheet 

DFA 14-KH/LH/KO/LO 

Data Sheet 

HCMOS 

TTL 


Through Hole Models 

Frequency 

Range (MHz) 

1.5 to 20 

HCMOS 5 to 52 

HCMOS 

CLIP SINE 

Series Output 

DFAV 14-KH/LH/KO/LO 

Data Sheet 

Fordahl SA 

Erlenstrasse 31 

2555 Bruegg 

Switzerland 

Tel:+41 32 366 50 50 

Fax:+41 32 366 50 59 

fordahl@fordahl.com 

Fordahl Germany 

Hufschmiedstrasse 2/1 

69168 Wiesloch 

Germany 

Tel: +49 (0) 6222 305665 

Fax:+49 (0) 6222 305664 

fordahlde@fordahl.com 

HCMOS 

CLIP SINE 

2 to 52 

TCXO's 

VC-TCXO's 

Frequency 

Range (Mhz) 

2 to 52 

Fordahl USA Inc. 

3623 Sunset Point Drive 

Gainesville, GA 30506 

USA 

Tel:+1 (770) 888-0104 

Fax:+1 (770) 888-4451 

fordahlusa@fordahl.com 



0 to 50°C | 0.28 

0 to 70°C | 0.28 

-20 to 70°C | ±0.2 to ±1 

-40 to 85°C | ±0.5 to ±2 

0 to 70°C | ±1 to ±2 

-40 to 85°C | ±2 to ±5 



-10 to 60°C | ±1 to ±2 

-20 to 70°C | ±2 to ±3 

Size Supply Voltage (V) 

DIL 14 5.0 | 3.3 

DIL 14 5.0 | 3.3 

DIL 14 5.0 | 3.3 

Fordahl SA - Erlenstrasse 31, 2555 Brügg, Switzerland - Phone +41 32 366 50 50 - Fax +41 32 366 50 59 - E-mail fordahl@fordahl.com 

Size 

Supply 

Voltage (V) 

DIL 14 5.0 | 3.3 

Fordahl France 

18, Rue Sejoure 

Za Creteil Parc 

94044 Creteil Cedex 

France 

Tel:+33 1 49 804 985 

Fax:+33 1 49 804 963 

commercial@fordahlfrance.fr 

Fordahl SA (UK) 

255 Hampton Lane 

Blackfield 

Southampton 

S045 1XA 

England 

Tel:+44 (0) 2380 898 899 

Fax:+44 (0) 2380 898 899 

fordahluk@fordahl.com

FREQUENCY CONTROL PRODUCTS 

U L T R A M I N I A T U R E S U R F A C E M O U N T T C X O 

KEY FEATURES 

9.6 to 30 MHz 

Miniature size 

Analogue temperature compensation 

APPLICATIONS 

Mobile communications/PCMCIA 

Function DFA S16 

V control or GND 1 

GND 2 

Output 3 

Vcc 4 

D F A S 1 6 - O / U O / L O / D O 

TYPE DFA S16-LH DFA S16-LO DFA S16-UO DFA S16-DO 

Frequency Range 9.6 to 30 MHz 

ELECTRICAL SPECIFICATIONS 

supply voltage 3.3 V ± 5 % 3.3 V ± 5 % 3.0 V ± 5 % 2.5 V ± 5 % 

supply current ( no load) ≤ 3.5 mA ≤ 2 mA ≤ 2 mA ≤ 2 mA 

output load 

HCMOS 15 pF or 2 

TTL 

clipped sine wave 

10 kΩ//10 pF ± 5 % 


10 kΩ//10 pF ± 5 % 


10 kΩ//10 pF ± 5 % 

high/low levels or output amplitude ≥ 2.8 V/ ≤ 0.3 V ≥ 0.8 V p-p ≥ 0.8 V p-p ≥ 0.8 V p-p 

duty cycle @ 50% level 45/55...55/45 % 

rise/fall times (10 to 90 %) ≤ 5 ns 

harmonics ≤ -3 dBc ≤ -3 dBc ≤ -3 dBc 

start-up ≤ 5 ms @ 3.15 V ≤ 5 ms @ 2.85 V ≤ 5 ms @ 3.15 V ≤ 5 ms @ 2.4 V 

FREQUENCY STABILITY detailed tolerances [ ppm ] 

type 

temperature 

range 

model 

code temperature 

stability versus: 

Vcc ± 5 % load ± 5 % ageing 

calibration 

@ 25°C 

0 to 70°C B2 ≤ ± 2.0 

all types -25 to 75°C P2 ≤ ± 2.0 ≤ ± 0.3 ≤ ± 0.3 ≤ ± 1 ≤ ± 1.5 

-30 to 80°C K2.5 ≤ ± 2.5 

remark ageing is 1 st year at 25°C 

OPTIONS CODE 

voltage control (positive slope ) V 

≥ ± 5, ≤ ± 15 ppm 

1.65 V ± 1.35 V 

≥ ± 5, ≤ ± 15 ppm 

1.65 V ± 1.35 V 

≥ ± 5, ≤ ± 15 ppm 

1.5 V ± 1.0 V 

ORDERING CODE type + option code + frequency + model code 

Example DFA S16-UOV 13 MHz P2 

2.5±0.2 

0.9±0.1 

Package 1 Package 2 

PC board footprint 

≥ ± 5, ≤ ± 15 ppm 

1.25 V ± 1.0 V 

TYPE DFA S16-LHV/UOV/LOV REVISION 03 CHECKED NE DATE 07.05.2008 PAGE XX 

3.2±0.2 

1 2 

4 

4 

2.2±0.2 

0.4±0.1 

1 2 

2.0 

0.6 

3 

3 

0.7±0.2 

1.2 

0.5 

0.83±0.1 

2.5±0.2 

0.9±0.1 

3.2±0.2 

1 2 

4 

4 

2.2±0.2 

0.4±0.1 

1 2 

2.0 

0.6 

3 

3 

0.7±0.2 

1.2 

0.5 

0.83±0.1


ULTRA MINIATURE SURFACE MOUNT TCXO 

KEY FEATURES 

10 to 25 MHz 



APPLICATIONS 



V control 1 

GND 2 

Output 3 

Vcc 4 

DFA S15-OV / UOV / LOV 

TYPE DFA S15-OV DFA S15-UOV DFA S15-LOV 

Frequency Range 10 to 25 MHz 10 to 25 MHz 10 to 25 MHz 


supply voltage 5 V ± 5 % 3.0 V ± 5 % 3.3 V ± 5 % 

supply current ( no load) ≤ 2 mA ≤ 2 mA ≤ 2 mA 

output load 

clipped sine wave 10 

kΩ//10 pF 


kΩ//10 pF 


kΩ//10 pF 

high/low levels or output amplitude ≥ 1.0 V p-p ≥ 0.7 V p-p ≥ 0.7 V p-p 

harmonics ≤ -3 dBc ≤ -3 dBc ≤ -3 dBc 

start-up ≤ 4 ms @ 4.75 V ≤ 4 ms @ 2.85 V ≤ 4 ms @ 2.85 V 


type 

temperature 

range 

model 




calibration 

@ 25°C 

0 to 70°C B1.5 ≤ ± 1.5 

all types 

-25 to 75°C P2 ≤ ± 2.0 ≤ ± 0.3 ≤ ± 0.2 ≤ ± 1 ≤ ± 2.5 

-30 to 85°C T2.5 ≤ ± 2.5 


voltage control (positive slope ) 

≥ ± 3 ppm, ≤ ± 7 ppm 

2.5 V ± 2 V 

≥ ± 3 ppm, ≤ ± 7 ppm 

1.5 V ± 1.0V 


Example DFA S15-UOV 13 MHz P2 


REMARK Preliminary data sheet is subject to change without notice 

TYPE DFA S15-OV/UOV/LOV REVISION 00 CHECKED NE DATE 09.03.2004 PAGE 55 

3.2±0.2 

1.6 

5.0±0.2 

2.6 

1.5 

2.6 

4 

3 

1 2 

1.6 

1.2±0.2 

1.2


ULTRA MINIATURE SURFACE MOUNT TCXO 

KEY FEATURES 

10 to 30 MHz 



APPLICATIONS 



V control 1 

GND 2 

Output 3 

Vcc 4 

DFA S11-OV / UOV 

4 3 

1 2 

TYPE DFA S11-OV DFA S11-UOV 

Frequency Range 10 to 30 MHz 10 to 30 MHz 


supply voltage 5 V ± 5 % 3.0 V ± 5 % 

supply current ( no load) ≤ 2 mA ≤ 2 mA 

output load clipped sine wave 10 kΩ//10 pF clipped sine wave 10 kΩ//10 pF 

high/low levels or output amplitude ≥ 1.0 V p-p ≥ 0.7 V p-p 

harmonics ≤ -3 dBc ≤ -3 dBc 

start-up ≤ 4 ms @ 4.75 V ≤ 4 ms @ 2.85 V 


type 

temperature 

range 

model 




calibration 

@ 25°C 

0 to 70°C B1.5 ≤ ± 1.5 

all types 

-25 to 75°C P2 ≤ ± 2.0 ≤ ± 0.3 ≤ ± 0.2 ≤ ± 1 ≤ ± 2.5 

-30 to 85°C T2.5 ≤ ± 2.5 


voltage control (positive slope ) 

≥ ± 3 ppm, ≤ ± 7 ppm 

2.5 V ± 2 V 

≥ ± 3 ppm, ≤ ± 7 ppm 

1.5 V ± 1.0V 


Example DFA S11-UOV 12.8 MHz T2.5 


TYPE DFA S11-OV/UOV REVISION 02 CHECKED NE DATE 11.10.2002 PAGE 52 

5.0±0.2 

1.7±0.2 

2.4 

7.0±0.2 

5.08 

1.5 

1.4 

5.08 

2.4 

1.4 2.0


LOW COST SURFACE MOUNT TCXO 

DFA S7-CH (5 V) & DFA S7-CLH (3.3 V) 

KEY FEATURES 

1.5 to 25 MHz 

Tight temperature stability 


APPLICATIONS 

Transmissions, Access, Microwave 


V control / NC 1 

GND 2 

Output 3 

Vcc 4 

TYPE DFA S7-CH DFA S7-CLH 

Frequency Range 1.5 to 25 MHz 1.5 to 25 MHz 




output load HCMOS 15 pF or 2 TTL HCMOS 15 pF or 2 TTL 

duty cycle @ 50% level 45/55...55/45 % 45/55...55/45 % 

rise/fall times (10 to 90 %) ≤ 5 ns ≤ 5 ns 

high/low levels or output amplitude ≥ 4.5 V/ ≤ 0.5 V ≥ 2.8 V/ ≤ 0.3 V 



type 

temperature 

range 

model 




calibration 

@ 25°C 

0 to 70°C B0.5 ≤ ± 0.5 

all types 

-20 to 70°C C1.5 ≤ ± 1.5 ≤ ± 0.3 ≤ ± 0.1 ≤ ± 1 ≤ ± 1 

-30 to 75°C N2.5 ≤ ± 2.5 


OPTIONS CODE 

voltage control on pin 1 

(positive slope ) 

V 

H = 9.30 mm 

≥ ± 5 ppm, ≤ ± 15 ppm 

2.5 V ± 2 V 

≥ ± 5 ppm, ≤ ± 15 ppm 

1.65 V ± 1.35 V 


Example DFA S7-CLHV 19.440 MHz C1.5 

TYPE DFA S7-C REVISION 00 CHECKED NE DATE 14.10.2002 PAGE 57 

12.9±0.2 

H±0.15 

7.6 

7.62 

1.3 

1.2 1.27 

1.6 

2.6 

4 

19.9±0.1 

18.4 

19.0 

3 

1 2 

PC board footprint


SURFACE MOUNT PRECISION TCXO 

DFA S7-K (5 V) & DFA S7-L (3.3 V) 

KEY FEATURES 

2 to 52 MHz 

Tight stability 


APPLICATIONS 

SDH/Sonet/Microwave 


NC/Pot in/Vco 1 

GND 2 

Output 3 

Vcc 4 

H = 7.80 mm 


TYPE DFA S7-KH DFA S7-KO DFA S7-LH DFA S7-LO 

Frequency Range 2 to 52 MHz 2 to 52 MHz 2 to 45 MHz 2 to 45 MHz 


supply voltage 5 V ± 5 % 5 V ± 5 % 3.2 V to 3.6 V 3.2 V to 3.6 V 

supply current ( no load) ≤ 25 MHz ≤ 10 mA ≤ 5 mA ≤ 5 mA ≤ 5 mA 

≤ 35 MHz ≤ 20 mA ≤ 20 mA ≤ 15 mA ≤ 15 mA 

> 35 MHz ≤ 30 mA ≤ 30 mA ≤ 20 mA ≤ 20 mA 

output load 

HCMOS 15 pF 

or 2 TTL 

clipped sine 

20kΩ//5 pF 

HCMOS 15 pF 

or 1 TTL 

clipped sine 

20kΩ//5 pF 

duty cycle @ 2.5V (LH @ 1.65 V) ≤ 45/55...55/45 % ≤ 45/55...55/45 % 


high/low levels or output amplitude ≥ 3.5 V/ ≤ 0.5 V ≥ 2 V p-p ≥ 2.7 V/ ≤ 0.2 V ≥ 1.5 V p-p 

start-up ≤ 10 ms @ 4.75V ≤ 10 ms @ 4.75V ≤ 10 ms @ 3.2V ≤ 10 ms @ 3.2V 

remarks duty cycle for frequencies > 30 MHz is 40/60%…60/40% 


type 

temperature 

range 

model 



Vcc range load ± 10 % ageing 

-10 to 60°C D1 ≤ ± 1 

all types 

C1 

-20 to 70°C 

C2 

≤ ± 1 

≤ ± 2 

≤ ± 0.1 ≤ ± 0.1 ≤ ± 1 

-30 to 75°C N2 ≤ ± 2 

DFA S7-K 

types 

E5 

-40 to 85°C E3 

E2 

≤ ± 5 

≤ ± 3 

≤ ± 2 

≤ ± 0.1 ≤ ± 0.1 ≤ ± 1 

factory calibration if no trimming option ≤ ± 1 ppm 

ageing is 1 st remarks 

year at 25°C 

DFA S7-L : Vcc range ≤ ± 0.3 ppm ( f ≥ 30 MHz ) 

OPTIONS CODE 

external voltage control V 

DFA S7-K : 2.5 V ± 2 V ≥ ± 5 ppm, positive slope 

DFA S7-L : 1.5 V ± 1.5 V ≥ ± 5 ppm, positive slope 

internal trimmer A ≥ ± 5 ppm 

external potentiometer Y 10 kΩ ≥ ± 5 ppm, between pin 1 and GND (not available with internal trimmer) 


Example DFA S7-KH 16.384 MHz E2 

TYPE DFA S7-K/L REVISION 02 CHECKED NE DATE 11.10.2002 PAGE 59 

12.9±0.2 

H±0.15 

7.6 

7.62 

1.3 

1.2 1.27 

1.6 

2.6 

4 

19.9±0.1 

18.4 

19.0 

3 

1 2 

Pot in 

10k 

Gnd 

Option Y


SURFACE MOUNT PRECISION TCXO 

DFA S7-KHZ (5 V) & DFA S7-LHZ (3.3 V) 

KEY FEATURES 

2 to 52 MHz 

Tri-state function 


APPLICATIONS 

Function 


DFA S7 

NC / Pot in / Vco 1 

GND 2 

N / C 3 

Output 4 

Vcc 5 

E / D 6 

TYPE DFA S7-KHZ DFA S7-LHZ 

Frequency Range 2 to 52 MHz 2 to 45 MHz 



supply current ( no load) ≤ 25 MHz ≤ 20 mA 

output load 

≤ 35 MHz 

> 35 MHz 

duty cycle @ 2.5V (LH @ 1.65 V) 

rise/fall times (10 to 90 %) 

high/low levels or output amplitude 

H = 7.80 mm 

≤ 30 mA 

≤ 40 mA 

HCMOS 15 pF 

or 2 TTL 

≤ 45/55...55/45 % 

≤ 10 ns 

≥ 3.5 V/ ≤ 0.5 V 

≤ 10 mA 

≤ 15 mA 

≤ 20 mA 

HCMOS 15 pF 

or 1 TTL 

≤ 45/55...55/45 % 

≤ 10 ns 

≥ 2.7 V/ ≤ 0.2 V 

start-up ≤ 10 ms @ 4.75V ≤ 10 ms @ 3.15V 

tri-state control on pin 6 high or open = enable, low = high Z high or open = enable, low = high Z 

remark duty cycle for frequencies > 30 MHz is 40/60%…60/40% 


type 

temperature 

range 

model 




-10 to 60°C D1 ≤ ± 1 

all types 

C1 

-20 to 70°C 

C2 

≤ ± 1 

≤ ± 2 

≤ ± 0.1 ≤ ± 0.1 ≤ ± 1 

-30 to 75°C N2 ≤ ± 2 

DFA S7-K type -40 to 85°C E3 ≤ ± 3 ≤ ± 0.1 ≤ ± 0.1 ≤ ± 1 

remarks 


ageing is 1 st year at 25°C 

OPTIONS CODE 


DFA S7-K : 2.5 V ± 2 V ≥ ± 5 ppm, positive slope 

DFA S7-L : 1.5 V ± 1.5 V ≥ ± 5 ppm, positive slope 


external potentiometer Y 10 kΩ ≥ ± 5 ppm, between pin 1 and GND (not available with internal trimmer) 


Example DFA S7-KHZ 16.384 MHz E3 


TYPE DFA S7-KHZ/LHZ REVISION 02 CHECKED NE DATE 11.10.2002 PAGE 58 

12.9±0.2 

H±0.15 

7.62 

7.62 

1.3 

1.2 1.27 

1.6 

2.6 

5 

6 

19.9±0.1 

18.4 

19.0 

4 

3 

1 2 

Pot in 

10k 

Gnd 

Option Y


SURFACE MOUNT TCXO 

DFA S4-KHZ (5 V) & DFA S4-LHZ (3.3 V) 

KEY FEATURES 

5 to 52 MHz 



APPLICATIONS 



NC 1 

E/D 2 

Vcc 3 

Output 4 

GND 5 

2.5 

7.4±0.2 

8.9 

8.9 

2.5 

TYPE DFA S4-KHZ/LHZ REVISION 00 CHECKED NE DATE 09.02.2006 PAGE xx 

20.0 

3.0 

20.0 

25.4±0.2 22.2±0.5 

0.8 

1 

2 

23.6 

5 

3 4 

4.0 

TYPE DFA S4-KHZ DFA S4-LHZ 

Frequency Range 5 to 52 MHz 









tri-state control on pin 2 high or open = enable, low = high Z high or open = enable, low = high Z 


type 

temperature 

range 

model 




calibration 

@ 25°C 

0 to 70°C B0.5 ≤ ± 0.5 

all types 

-20 to 70°C C0.5 

-40 to 85°C E0.5 

≤ ± 0.5 

≤ ± 0.5 

≤ ± 0.1 ≤ ± 0.1 ≤ ± 1 ≤ ± 1 

-40 to 85°C E1 ≤ ± 1.0 


OPTIONS CODE 



V 

≥ ± 5 ppm, ≤ ± 15 ppm 

2.5 V ± 2 V 

17.8 

≥ ± 5 ppm, ≤ ± 15 ppm 

1.65 V ± 1.35 V 


Example DFA S4-KHZV 19.44 MHz E0.5 

PC board footprint


DIL 14 STRATUM III TCXO 

DFA 14-CH (5 V) & DFA 14-CLH (3.3 V) 

KEY FEATURES 

1.5 to 20 MHz 

Stratum III compliant over 0 to 70°C 


APPLICATIONS 

Stratum III 

Function DFA 14 

N/C 1 

GND 7 

Output 8 

Vcc 14 

H = 8.50 mm 

PIN 1 

12.7±0.1 

H±0.1 

6.3 

7.62 

0.45 

20.3±0.1 

TYPE DFA 14-CH DFA 14-CLH 

Frequency Range 1.5 to 20 MHz 1.5 to 20 MHz 

Standard Frequencies 1.544; 12.8; 16.384; 19.44 & 20 MHz 1.544; 12.8; 16.384; 19.44 & 20 MHz 










type 

temperature 

range 

model 



Vcc ± 5 % ageing 

overall 

stability 

calibration 

@ 25°C 

all types 

0 to 50°C AS3 

0 to 70°C BS3 

≤ ± 0.28 

≤ ± 0.28 

≤ ± 0.3 

≤ ± 3 over 

15 years 

≤ ± 4.6 over 

15 years 

≤ ± 0.8 

24 hours drift (GR-1244-CORE) ≤ ± 0.04 

24 hours holdover mode ≤ ± 0.37, full temperature range and Vcc ± 0.5 % 


Example DFA 14-CLH 19.44 MHz AS3 

TYPE DFA 14-C STRATUM III REVISION PL02 CHECKED NE DATE 14.10.2002 PAGE 47 

15.24 

0.75±0.1


MINIATURE DIL 14 TCXO 

DFA 14-CH (5 V) & DFA 14-CLH (3.3 V) 

KEY FEATURES 

5 to 52 MHz 

Tight temperature stability 


APPLICATIONS 

Transmissions, Access, Microwave 

Function DFA 14 

V control / NC 1 

GND 7 

Output 8 

Vcc 14 

TYPE DFA 14-CH DFA 14-CLH 

Frequency Range 5 to 52 MHz 










type 

temperature 

range 

model 




calibration 

@ 25°C 

0 to 70°C B0.5 ≤ ± 0.5 

-20 to 70°C C0.5 ≤ ± 0.5 

all types 

-20 to 70°C C0.2 ≤ ± 0.2 ≤ ± 0.1 ≤ ± 0.1 ≤ ± 1 ≤ ± 1 

-40 to 85°C E0.5 ≤ ± 0.5 

-40 to 85°C E1 ≤ ± 1.0 

remarks 

C0.2 only available up to 20 MHz 


OPTIONS CODE 



V 

H = 8.50 mm 

≥ ± 5 ppm, ≤ ± 15 ppm 

2.5 V ± 2 V 

≥ ± 5 ppm, ≤ ± 15 ppm 

1.65 V ± 1.35 V 


Example DFA 14-CLHV 16.384 MHz E0.5 

TYPE DFA 14-C REVISION 02 CHECKED NE DATE 27.02.2006 PAGE 67 

PIN 1 

12.7±0.1 

H±0.1 

6.3 

7.62 

0.45 

20.3±0.1 

15.24 

0.75±0.1


DIL 14 PACKAGE TCXO 

DFA 14-K (5 V) & DFA 14-L (3.3 V) 

KEY FEATURES 

2 to 52 MHz 



APPLICATIONS 

Function 


DFA 14 

NC/Pot in/Vco 1 

GND 7 

Output 8 

Vcc 14 

H = 8.50 mm 

TYPE DFA 14-KH DFA 14-KO DFA 14-LH DFA 14-LO 




supply current ( no loa)d ≤ 25 MHz ≤ 10 mA ≤ 5 mA ≤ 5 mA ≤ 5 mA 

≤ 35 MHz ≤ 20 mA ≤ 20 mA ≤ 15 mA ≤ 15 mA 

> 35 MHz ≤ 30 mA ≤ 30 mA ≤ 20 mA ≤ 20 mA 

output load 

HCMOS 15 pF 

or 2 TTL 

clipped sine 

20kΩ//5 pF 

HCMOS 15 pF 

or 1 TTL 

clipped sine 

20kΩ//5 pF 

duty cycle @ 2.5V (LH @ 1.65 V) ≤ 45/55...55/45 % ≤ 45/55...55/45 % 



start-up ≤ 10 ms @ 4.75 V ≤ 10 ms @ 4.75 V ≤ 10 ms @ 3.2 V ≤ 10 ms @ 3.2 V 

remarks duty cycle for frequencies > 30 MHz is 40/60%…60/40% 


type 

temperature 

range 

model 




-10 to 60°C D1 ≤ ± 1 

all types 

C1 

-20 to 70°C 

C2 

≤ ± 1 

≤ ± 2 

≤ ± 0.1 ≤ ± 0.1 ≤ ± 1 

-30 to 75°C N2 ≤ ± 2 

E5 ≤ ± 5 

DFA 14-K types -40 to 85°C E3 ≤ ± 3 

≤ ± 0.1 ≤ ± 0.1 ≤ ± 1 

E2 ≤ ± 2 


ageing is 1 st remarks 

year at 25°C 

DFA S7-L : Vcc range ≤ ± 0.3 ppm ( f ≥ 30 MHz ) 

OPTIONS CODE 


DFA 14-K : 2.5 V ± 2 V ≥ ± 5 ppm, positive slope 

DFA 14-L : 1.5 V ± 1.5 V ≥ ± 5 ppm, positive slope 


external potentiometer Y 10 kΩ ≥ ± 5 ppm (not available with internal trimmer) 


Example DFA 14-KHAV 8.192 MHz E2 

TYPE DFA 14-K & L REVISION 02 CHECKED NE DATE 14.10.2002 PAGE 60 

PIN 1 

12.7±0.1 

H±0.1 

6.3 

7.62 

0.45 

20.3±0.1 

15.24 

0.75±0.1 

Pot in 

10k 

Gnd 

Option Y


SURFACE MOUNT LOW POWER VC-TCXO 

DFAV S7-K (5 V) & DFAV S7-L (3.3 V) 

KEY FEATURES 

2 to 52 MHz 

Optional tri-state function (6 pads package) 

± 40 ppm pulling range 

APPLICATIONS 


Function DFAV S7 KHZ and LHZ 

V control 1 1 

GND 2 2 

N / C 3 

Output 3 4 

Vcc 4 5 

E / D 6 

TYPE DFAV S7-KH(Z) DFAV S7-LH(Z) DFAV S7-KO DFAV S7-LO 



supply voltage 5 V ± 5 % 3.2 V to 3.6 V 5 V ± 5 % 3.2 V to 3.6 V 

LHZ : 3.3 V ± 5 % 

supply current (no load) ≤ 25 MHz ≤ 10 (KHZ=20) mA ≤ 5 (LHZ=10) mA ≤ 5 mA ≤ 5 mA 

≤ 35 MHz ≤ 20 (KHZ=30) mA ≤ 15 mA ≤ 20 mA ≤ 15 mA 

> 35 MHz ≤ 30 (KHZ=40) mA ≤ 20 mA ≤ 30 mA ≤ 20 mA 

output load 

HCMOS 15 pF or 

2 TTL 


1 TTL 

clipped sine 

20kΩ//5 pF 

clipped sine 

20kΩ//5 pF 

duty cycle 

@ 2.5V 

@ 1.65V 

≤ 45/55...55/45 % 

≤ 45/55...55/45 % 


high/low levels or output amplitude ≥ 3.5 V/ ≤ 0.5 V ≥ 2.7 V/ ≤ 0.2 V ≥ 2 V p-p ≥ 1.5 V p-p 

start up ≤ 10 ms @4.75 V ≤ 10 ms @3.2 V ≤ 10 ms @4.75 V ≤ 10 ms @3.2 V 

LHZ @ 3.15 V 



types 

temperature 

range 

model 

code temp. 


@ 25°C Vcc range load ± 10 % ageing 

pulling range 

positive function 

all types 

-10 to 60°C 40D1 

-20 to 70°C 40C2 

≤ ± 1 

≤ ± 2 

≤ ± 1 ≤ ± 0.2 ≤ ± 0.3 ≤ ± 1 ≥ ± 40 

remarks 

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 @ nominal control voltage 


OPTIONS CODE 

tri-state control on pin 6 Z high or open = enable, low = high Z (only for KH and LH models) 



Example DFAV S7-LHZ 19.440 MHz 40C2 

12.9±0.2 

H±0.15 

7.6 

7.62 

1.3 

TYPE DFAV S7-K/L REVISION 02 CHECKED NE DATE 14.10.2002 PAGE 65 

1.2 1.27 

1.6 

2.6 

DFAV S7 DFAV S7-KHZ/LHZ 

4 

19.9±0.1 

18.4 

19.0 

3 

1 2 

12.9±0.2 

H±0.15 

7.62 

7.62 

1.3 

1.2 1.27 

1.6 

2.6 

5 

6 

19.9±0.1 

18.4 

19.0 

4 

3 

1 2 

H = 7.80 mm 

PC board 

footprint


MINIATURE DIL 14 PACKAGE VC-TCXO 

DFAV 14-K (5 V) & DFAV 14-L (3.3 V) 

KEY FEATURES 

2 to 52 MHz 

± 40 ppm pulling range 

APPLICATIONS 


Function DFAV 14 

V control 1 

GND 7 

Output 8 

Vcc 14 

H = 8.50 mm 

TYPE DFAV 14-KH DFAV 14-KO DFAV 14-LH DFAV 14-LO 




supply current (no load) ≤ 25 MHz ≤ 10 mA ≤ 5 mA ≤ 5 mA ≤ 5 mA 

≤ 35 MHz ≤ 20 mA ≤ 20 mA ≤ 15 mA ≤ 15 mA 

> 35 MHz ≤ 30 mA ≤ 30 mA ≤ 20 mA ≤ 20 mA 

output load 


2 TTL 

clipped sine 

20kΩ//5 pF 


1 TTL 

clipped sine 

20kΩ//5 pF 

duty cycle 

@ 2.5V 

@ 1.65V 

≤ 45/55...55/45 % 

≤ 45/55...55/45 % 



start up ≤ 10 ms @4.75 V ≤ 10 ms @4.75 V ≤ 10 ms @ 3.2V ≤ 10 ms @ 3.2V 



types 

temperature 

range 

model 

code temp. @ 25°C 



pulling range 

positive function 

all types 

-10 to 60°C 40D1 

-20 to 70°C 40C2 

≤ ± 1 

≤ ± 2 

≤ ± 1 ≤ ± 0.2 ≤ ± 0.3 ≤ ± 1 ≥ ± 40 

remarks 

control voltage range: DFAV 14-K/ 2.5 V ± 2 V, DFAV 14-L/ 1.5 V ± 1.5 V 

input impedance ≥ 10 kΩ 

temperature stability is guaranteed @ nominal control voltage 


OPTIONS CODE 


ORDERING CODE type + frequency + model code 

Example DFAV 14-KH 19.440 MHz 40D1 

TYPE DFAV 14-K/L REVISION 02 CHECKED NE DATE 14.10.2002 PAGE 66 

PIN 1 

12.7±0.1 

H±0.1 

6.3 

7.62 

0.45 

20.3±0.1 

15.24 

0.75±0.1

Temperature Compensated Crystal Oscillators (VC)TCXO

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