VS-500A Voltage Controlled SAW Oscillator

Pin Information

Table 1. Pin Function

Performance Characteristics

Vectron International •

267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Fax: 1-888-FAX-VECTRON

2

Pin

Symbol

Function

1

VCSO Control Voltage

2

OD

Output Disable

3

GND

Case and electrical ground

4

Output

VCSO Output

5

COutput

VCSO Complimentary Output

6

Power Supply Voltage (5.0 V ±10%)

1. By setting OD low, the outputs are disabled and OUT is held high while Complementary OUT is held low. The threshold for Output Disable is 1.4V

above pin 3. Output Disable should not be driven above mid supply and during normal operation, should be left floating (use with an open collector or

3-State gate for interfacing with standard logic).

Parameter

Symbol

Minimum

Typical

Maximum

Units

Center Frequency, see ordering information

155

800

MHz

Operating Temperature

-40

25

+85

°C

Supply Current (no load)

55

70

mA

Supply Voltage

4.5

5

5.5

V

Absolute Pull Range over -40 to 85°C

APR

±50

-

-

ppm

(Vc= 0.5 to 4.5)

Positive Gain Transfer @ 155.52MHz

-

350

-

ppm/V

(Frequency vs Control voltage)

Positive Gain Transfer @ 622.080MHz

-

200

-

ppm/V

(Frequency vs Control voltage)

Linearity

Lin

±3

%

Frequency Stability, -40 to 85 wrt 25°C

±150

ppm

-

V

-

V

250

400

ps

250

400

ps

Jitter @ 155.520 MHz, 12 KHz to 20 MHz

0.439

ps, rms

Jitter @ 622.080 MHz, 12 KHz to 20 MHz

0.276

ps, rms

Jitter @ 622.080 MHz, 50 KHz to 80 MHz

0.293

ps, rms

Spurious Suppression

-50

-60

dB

Data Symmetry

SYM

45

49/51

55

%

Control Voltage Input Impedance

Zc

8

10

12

K

Ω

Control Voltage Modulation Bandwidth

BW

-

500

-

kHz

Output Current

Iout

-

-

20

mA

Table 2. Electrical Performance @ 25°C

1. Output Levels are standard 10K ECL and are fully 100K ECL compatible.

2. Transition times are measured from 20% to 80% of a full 10K ECL level swing.

Offset from Carrier

100 Hz

1kHz

10kHz

100kHz

VS-500A 622.080

-62

-85

-109

-127

Table 3. Typical Single Side-Band Phase Noise (dBc/Hz)