Product Data Sheet
Not Recommended For New Designs

VCO-600A
Voltage Controlled Saw OscillatorFeatures• Output Frequency @ 155 MHz to 1 GHz• Low jitter, 3pS rms for 622.080 MHz version and6pS rms (typical) for 155 MHz version• Ideal for clock smoothing, frequency translation,clock and data retiming applications• 10K ECL, PECL logic levels with fasttransition times• Complementary outputs• Low profile, surface mount package• Output disable feature• Low-frequency clock through feature• Miniature hermetically sealed ceramic surfaceThe VCO600A Voltage Controlled SAW Oscillator

mount package (SO-28, approx.0.7in. x 0.3in)Applications• OC192/OC48/OC12 Clock Smoothing• Frequency Translation

Description
The VCO600A is a SAW stabilized, voltage controlled
oscillator that operates at the fundamental frequencyof the internal SAW filter. This filter is a high stability,
high-Q quartz device that enables the circuit toachieve low phase jitter performance over a wide
operating temperature range. The oscillator is housed
in a hermetically sealed 28-lead surface mountpackage. It has a unique output disable and clock
through feature to facilitate on-board testing.

Vectron International 267 Lowell Rd, Hudson NH 03051-4916 Tel:1-88-VECTRON-1

e-mail: vectron@vectron.com

VCO-600A Voltage Controlled SAW Oscillator
Pin Information
Table 1. Pin Function
PinSymbol
2,12,27
4
5,6,7,81017VCC
CLKIN 1NC
VEE
VBW 2

19212325

VC
OD3
CLKOUT
CLKOUT

1,3,9,11,13,14,15,
16,18,20,22,24,26,28

GND

Function

Top View of Package

Positive Supply
Test Clock InNo Connect
Negative Supply
Modulation Bandwidth
AdjustControl Voltage
Output Disable
ECL OutputComplementaryECLOutput
Case and Circuit
Ground

1. By setting OD low, a test signal may be applied at CLKIN and fed through the VCO-600A to both the CLKOUT and CLKOUT to facilitate on board
testing. The test signal input applied at CLKIN may be either an ECL or sinewave input (up to 1Vpp, AC coupled). CLKIN is biased internally toVBB (Vcc-1.3V)
2. An optional capacitor to ground can be placed on VBW to reduce the modulation bandwidth for narrow bandwidth phase-lock loop applications. The
modulation bandwidth will be approximately 1/(12000*C)Hz, where C is equal to the capacitance in Farads. If the optional capacitor is not utilized, VBW
becomes a no connect (NC) and the modulation bandwidth will be approximately equal to the nominal device frequency ÷1200.
3. By setting OD low, the outputs are disabled and CLKOUT is held Low while CLKOUT is held High. The threshold for OD is 1.4V above VEE. OD
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 withstandard logic). If the OD feature is used during normal operation, then CLKIN should be tied through 10KΩ to GND to avoid any possibility of chatter on
the CLKOUT outputs.

Performance Characteristics
Table 2. Electrical Performance
Parameter
Center Frequency, see ordering information
Operating Temperature
Supply Current
Supply Voltage1
Absolute Pull Range (Vc= -0.5 to -4.5)
Positive Gain Transfer (freq vs Vc) 155.520MHz
Positive Gain Transfer (freq vs Vc) 622.080MHz
Linearity
Frequency Stability, -40 to 85 wrt 25°C
Output Level Low2
Output Level High2
Output Rise Time3
Output Fall Time3
Spurious Suppression
Data Symmetry
Control Voltage Input ImpedanceControl Voltage Modulation Bandwidth4
Control Voltage Range
Output Current
Storage Temperature
Soldering Temp./Time

SymbolMinimum

FN
TOP
IEE
VEE
APR
KV
KV
Lin
FSTAB
VOL
VOH
tR
tF

155-402555-5350
135±3±150250
250-6049/51
10500--4.5±50
175
60

-1.95
-0.98
100
100-50
45
8VEE
-55
-

SYM
Zc
BW
VC
IOUT
TS
TLS

TypicalMaximum

Units

1000
+8570
-5.5
700
290

MHz°CmA
V
ppm
ppm/V
ppm/V
%ppm
VVpS
pS
dB%KΩkHzVmA°C°C/S-1.63-0.75
400
40055
12VCC
20125240/10

1. The VCO-600A may be configured for PECL operation. All outputs and inputs including VC are referenced to Vcc
2. Output Levels are standard 10K ECL and are fully 100K ECL compatible.
3. Transition times are measured from 20% to 80% of a full 10K ECL level swing.
4. The modulation bandwidth is a function of nominal center frequency and may be adjusted down through the use of an external capacitor on pin 17.
Please see Figure 1 and Figure 2 along with Notes 1, 2 and 3.

Table 3. Typical Single Side-Band Phase Noise (dBc/Hz)
Offset from Carrier
VCO600A 622.080

100 Hz-50

1 kHz-80

Vectron International 267 Lowell Rd, Hudson NH 03051-4916

10 kHz-110

Tel:1-88-VECTRON-1
2100 kHz
-130

1 MHz
-145

e-mail vectron@vectron.com

VCO-600A Voltage Controlled SAW Oscillator+5 V+3V, 50ohms
2,12,27VCC

0.5 to 4.5V

VCO-600A
19

OUT

23

OUT

25

Control Voltage
21Output Disable
Test Clock In4VEE

Optional
Capacitor
Reduces
Bandwidth

17Ground10

1,3,9,11,13,14,15,16,18,20,22,24,26,28

Figure 1. PECL Operation-5 V-2V, 50ohms
10VEE-4.5 to -0.5VVCO-600A

23OUT

19Control Voltage
25OUT

21Output Disable
Test Clock In
4VCC
2,12,27

17GroundOptional
Capacitor
Reduces
Bandwidth

1,3,9,11,13,14,15,16,18,20,22,24,26,28

Figure 2. ECL Operation
1. By setting OD low, a test signal may be applied at CLKIN and fed through the VCO-600A to both the CLKOUT and CLKOUT to facilitate on board
testing. The test signal input applied at CLKIN may be either an ECL or sinewave input (up to 1Vpp, AC coupled). CLKIN is biased internally toVBB (Vcc-1.3V)
2. An optional capacitor to ground can be placed on VBW to reduce the modulation bandwidth for narrow bandwidth phase-lock loop applications. The
modulation bandwidth will be approximately 1/(12000*C) Hz, where C is equal to the capacitance in Farads. If the optional capacitor is not utilized, VBW
becomes a no connect (NC) and the modulation bandwidth will be approximately equal to the nominal device frequency ÷1200.
3. By setting OD low, the outputs are disabled and CLKOUT is held Low while CLKOUT is held High. The threshold for OD is 1.4V above VEE. OD
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 withstandard logic). If the OD feature is used during normal operation, then CLKIN should be tied through 10KΩ to GND to avoid any possibility of chatter on
the CLKOUT outputs

Vectron International 267 Lowell Rd, Hudson NH 03051-4916

Tel:1-88-VECTRON-1
3e-mail vectron@vectron.com

VCO-600A Voltage Controlled SAW Oscillator

622.080MH

φ and Freq
Detector

51.840MHz

Loop Filter

VCO-600A
622.080MHz

Divide by 12
Figure 3. Typical Frequency Translation Diagram
155.52MHz

φ and Freq
Detector

155.52MHz

Loop Filter

VCO-600A
155.520MHz

Figure 4. Typical Clock Smoothing Diagram

Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can permanently damage the device. Functional operation is not implied atthese or any other conditions in excess of conditions represented in the operational sections of this data sheet. Exposure toabsolute maximum ratings for extended periods may adversely affect device reliability.

Table 4. Absolute Maximum Ratings
Parameter
SymbolPower SupplyVEE
Output Current1
Iout
Output Current2
Iout
Voltage Control Range1
VC
Voltage Control Range2VC
1 Limts beyond which performance can not be guarenteed.
2 Limits beyond which device life may be impaired.

Ratings-8 to 02050
VEE to VCC
VEE-0.5 to VCC+0.5

Unit
VmA
mA
V
V

Qualification Conformance
The VCO-600A family has undergone, and passed, the following Mil-Std qualification.

Table 5. Environmental Compliance
ParameterMechanical ShockMechanical Vibration
Solderability
Gross and Fine Leak
Resistance to Solvents

Conditions
MIL-STD-883C 2002.3, TEST A
MIL-STD-883C 2007.1, TEST A
MIL-STD-883C 2003.5,
MIL-STD-883C, 1014.7, 100% Tested
MIL-STD-883C 2016

Handling Precautions
Although ESD protection circuitrry has been designed into the the VCO-600A, proper precautions should be taken when handlingand mounting. VI employs a human body model and a charged-device model (CDM) for ESD susceptibility testing and design
protection evaluation. ESD thresholds are dependent on the circuit parameters used to define the model. Although no industry widestandard has been adopted for the CDM, a standard HBM of resistance=1.5Kohms and capacitance = 100pF is widely used andtherefore can be used for comparison purposes.

Table 6. ESD Ratings
Model
Human Body Model
Charged Device Model

Vectron International 267 Lowell Rd, Hudson NH 03051-4916

Minimum
1000 V
1000 V

Tel:1-88-VECTRON-1
4e-mail vectron@vectron.com

VCO-600A Voltage Controlled SAW Oscillator

220
183
15060s.

60-90s.

45-60s.

Tim e(s)Figure 5. Suggested IR profile

VIFigure 6. Outline Diagram

Vectron International 267 Lowell Rd, Hudson NH 03051-4916
5

Tel:1-88-VECTRON-1

e-mail vectron@vectron.com

VCO-600A Voltage Controlled SAW Oscillator

JGC

DFB

IAL

EK

H

Bottom Holes for TRU
and VCO Products OnlyFigure 7. Tape Reel Drawing
Table 7. Tape and Reel Dimensions (mm)Tape Dimensions
ProductA
B
CDE
VCO600A

32

14.2

1.5

416

Reel Dimensions
FGHIJKL# PerReel

1.78

100533330200

2113

Ordering information
Table 8. Part number ordering information
Part NumberPackaging
VCO600A 155.52MHz
Tube
VCO600A 155.52MHz
Tape and Reel
VCO600A 278.528MHz
Tube
VCO600A 278.852MHz
Tape and Reel
VCO600A 311.040MHz
Tube
VCO600A 311.040MHz
Tape and Reel
VCO600A 368.640MHz
Tube
VCO600A 368.640MHz
Tape and Reel
VCO600A 622.080MHz
Tube
VCO600A 622.080MHz
Tape and Reel
VCO600A 666.5143MHz
Tube
VCO600A 666.5143MHz
Tape and Reel

Comcode107040537
407611896
107316457
107012551
107237539
407875244
107012569
407961762
330016544
330018383

For Additional Information, Please Contact:
USA: Vectron International, 267 Lowell Rd, Hudson, NH 03051 . . . . Tel: 1-88-VECTRON-1

Fax: 1-888-FAX-VECTRONEUROPE: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tel: +49 (0) 3328-4784-17

Fax: +49 (0) 3328-4784-30

ASIA: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tel: +86-21-28909740

Fax: +86-21-28909240

Vectron International reserves the right to make changes to the product(s) and or information contained herein without notice.
No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.

VCO600A.DOC (REVISION DATE: 11/23/04)

For Additional Information, Please Contact:
Vectron International 267 Lowell Rd, Hudson NH 03051-4916
6

Tel:1-88-VECTRON-1

e-mail vectron@vectron.com