24 Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
Voltage Controlled Crystal Oscillators (VCXO’s)
S-Type
Performance Characteristics
Description:
The S-Type is a high volume, high reliability
CMOS VCXO. It is ASIC based and available in a
through-hole or SMD industry standard footprint
ceramic package.
Features:
• Frequencies to 65.536 MHz
• 5 or 3.3 volt operation
• <6 ps rms jitter (output frequencies >12 MHz)
• Advanced custom ASIC technology
• Surface mountable
• TTL or CMOS selectable
• Tri-state output
• 0/70°C or -40/85°C Operating Temp. Range
Frequency: fO1.024 65.536 MHz
Supply Voltage: (+3.3 V) VDD 2.97 3.3 3.63 V
(+5.0 V) 4.5 5.0 5.5
Supply Current: IDD 10mA +0.25mA/MHz mA
Output Logic Levels (VDD =4.5V):
Output Logic High: VOH 0.8*VDD -- V
Output Logic Low: VOL -- 0.1* VDD V
Transition Times:
Rise Time tR5ns
Fall Time tF5ns
Symmetry or Duty Cycle: SYM 45 55 %
Operating temperature (ordering option): 0/70 or –40/85 °C
Test Conditions for APR (+5V option): VC0.5 4.5 V
Test Conditions for APR (+3.3V option): VC0.3 3.0 V
Absolute Pull Range (ordering option): APR +/-50 ppm
+/- 80
+/-100
Gain Transfer: Positive ppm/V
Control Voltage Leakage Current: IVCXO ±1 uA
Control Voltage Bandwidth (-3dB): BW 10 kHz
Package Size: 7.8 x 8.5 x 3.3 mm
Parameter Symbol Minimum Typical Maximum Units
8798_AA's Vectron 05/30/02 3:11 PM Page 24
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com 25
Voltage Controlled Crystal Oscillators (VCXO’s)
Pin # Symbol Name/Function
1 VCVCXO: Control Voltage to modulate frequency.
2 Tri-state TTL logic low disables output. TTL logic high
or no connection enables output frequency.
3 GND Circuit and case ground
4 Output Output waveform
5 TTL/CMOS TTL logic low provides waveform symmetry
for CMOS. TTL logic high or no connection
provides waveform symmetry for TTL.
6 VDD Supply Voltage, 5 V ±10% or 3.3V ±10%
1.024 1.544 2.000 2.048 3.088 3.580 3.686
4.000 4.032 4.096 4.434 5.000 5.760 6.144
6.176 6.312 6.400 8.000 8.192 8.448 9.192
10.000 11.000 11.2896 11.290 12.000 12.288 12.352
12.900 13.000 13.500 14.318 15.360 15.440 16.000
16.123 16.384 17.734 18.432 19.440 19.985 20.000
20.480 24.000 24.576 24.704 27.000 30.000 32.000
32.768 34.368 35.328 38.880 40.000 40.960 44.736
50.000 51.840 52.000
Ordering Information
Standard Frequencies (MHz)
Temperature Range
C=0
oC to +70oC
L= -40oC to +85oC
Frequency
S UG GA44.736
Configuration
T= Thru hole
G = Gull wing
Output, Symmetry
U = VCXO, +5V, standard linearity
L= VCXO, +5V, ±10% linearity
D = VCXO, +3.3V, standard linearity
K = VCXO, +3.3V, ±10% linearity
MHz
Symmetry
A= 45/55%
Absolute Pull Range
G= +50 ppm
N= +80 ppm
H= +100 ppm
Package Size
S-Type
L
S-Type
Pin Out Information
Gull-WingThru-Hole
VCXO
8798_AA's Vectron 05/30/02 3:11 PM Page 25
