High
Frequency
VCXO
Features
Description
Models: V777 / V778 / V787 / V788
3.3V Operation
Absolute Pull Range (APR): +/-30ppm
Temperature Range: 0 to 70°C or -40 to 85°C
Differential LVPECL Outputs
Low Jitter 0.1pS RMS Typical
Enable / Disable Function:
Models: V777-V787: Enable Low
Models: V778-V788: Enable High
5.0x7.0mm Surface Mount Package
Tape and Reel Packaging
The Connor-Winfield models V777,
V778,V787 and V788 are 3.3V,
Surface Mount 5.0x7.0mm, Voltage
Controlled Crystal Oscillator (VCXO)
with LVPECL differential outputs and enable/ disable
function. The V777, V778,V787 and V788 are designed
for use with applications utilizing a PLL system
requiring very high frequency and low jitter. The surface
mount package is designed for high-density mounting
and is optimum for mass production.
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630-851-4722
Fax: 630-851-5040
www.conwin.com
US Headquarters
630-851-4722:
European Headquarters:
+353-61-472221
Specifications
Absolute Maximum Ratings
RoHS Compliant / Lead Free
Parameter
Symbol
Minimum
-55
Nominal
Maximum
125
Units
°C
Note
Storage Temperature
Supply Voltage
Input Voltage
-
-
-
(Vcc)
(Vc)
-0.5
4.6
Vdc
Vdc
-0.5
Vcc+0.5
Operating Specifications
Parameter
Symbol
Minimum
Nominal
Maximum
Units
Note
Center Frequency
(Fo)
200
-
710
MHz
Operating Temperature Range
Models: V777-V778
0
-
-
70
85
°C
°C
Models: V787-V788
-40
Supply Voltage
(Vcc)
(Icc)
3.135
3.3
-
3.465
100
Vdc
mA
Supply Current
-
-
Integrated Phase Jitter (BW=12kHz to 20MHz)
Typical Phase Noise for Fo = 622.08 MHz
SSB Phase Noise at 10Hz offset
SSB Phase Noise at 100Hz offset
SSB Phase Noise at 1KHz offset
SSB Phase Noise at 10KHz offset
SSB Phase Noise at 100KHz offset
SSB Phase Noise at 1MHz offset
SSB Phase Noise at 10MHz offset
Sub harmonic Content for Fo = 622.08 MHz
@ 155.52 MHz (25%Fo)
0.1
0.25
ps rms
-
-
-
-
-
-
-
-45
-85
-
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
-
-110
-130
-140
-145
-150
-
-125
-130
-140
-145
-
-
-
-45
-40
-45
-
-
-
dBc
dBc
dBc
@ 311.04 MHz (50%Fo)
@ 466.56 MHz (75%Fo)
Harmonic Content for Fo = 622.08 MHz
@ 1.244 GHz (2xFo)
-
-
-17
-
-
dBc
dBc
Spurious Content
-70
Input Characteristics
Parameter
Symbol
Minimum
Nominal
Maximum
Units
Vdc
Note
Control Voltage Range
Tuning Slope (Kv)
(Vc)
0.3
-
1.65
3.0
80
-
-
ppm/V
ppm
%
Absolute Pull Range: (APR)
Monotonic Linearity
30
-
1
-10
130K
25
-
180K
-
10
-
Input Impedance
Ohm
KHz
Modulation Bandwidth (3dB)
Models: V777-V787 Enable / Disable Function
-
Enable Input Voltage (Low)
(Vil)
-
-
-
1.68
-
Vdc
Vdc
2
2
Disable Input Voltage (High)
(Vih)
2.275
Models: V778-V788 Enable / Disable Function
Enable Input Voltage (High)
Disable Input Voltage (Low)
(Vil)
2.275
-
-
-
-
Vdc
Vdc
2
2
(Vih)
1.68
LVPECL Output Characteristics
Parameter
Symbol
Minimum
Nominal
Maximum
Units
Ohms
Vdc
Vdc
%
Note
Bulletin
Page
Vx605
LOAD
-
-
-
50
-
3
1 of 2
03
Voltage
(High)
(Low)
(Voh)
(Vol)
2.275
Revision
Date
-
45
-
-
1.68
55
Duty Cycle at 50% Level
50
0.30
15 Sep 2011
Rise / Fall Time 20% to 80%
0.45
ns
Specifications subject to change without notice. All dimensions in inches. © Copyright 2008 The Connor-Winfield Corporation