High
Frequency
VCXO
Description
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
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.
0722
622.0 V775
8 MH
z
CW
Features
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
RoHS Compliant / Lead Free
Nominal
-
-
-
Maximum
125
4.6
Vcc+0.5
Units
°C
Vdc
Vdc
Note
Specifications
Absolute Maximum Ratings
Parameter
Storage Temperature
Supply Voltage
Input Voltage
Operating Specifications
Parameter
Center Frequency
Operating Temperature Range
Models: V777-V778
Models: V787-V788
Supply Voltage
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)
@ 311.04 MHz (50%Fo)
@ 466.56 MHz (75%Fo)
Harmonic Content for Fo = 622.08 MHz
@ 1.244 GHz (2xFo)
Spurious Content
Input Characteristics
Parameter
Control Voltage Range
Tuning Slope (Kv)
Absolute Pull Range: (APR)
Monotonic Linearity
Input Impedance
Modulation Bandwidth (3dB)
Models: V777-V787 Enable / Disable Function
Enable Input Voltage (Low)
Disable Input Voltage (High)
Models: V778-V788 Enable / Disable Function
Enable Input Voltage (High)
Disable Input Voltage (Low)
LVPECL Output Characteristics
Symbol
(Vcc)
(Vc)
Minimum
-55
-0.5
-0.5
Symbol
(Fo)
Minimum
300
0
-40
Nominal
-
-
-
3.3
-
0.1
-45
-85
-110
-130
-140
-145
-150
-45
-40
-45
-17
-
Maximum
800
70
85
3.465
100
0.25
-
-
-
-125
-130
-140
-145
-
-
-
-
-70
Units
MHz
°C
°C
Vdc
mA
ps rms
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc
dBc
dBc
dBc
dBc
Note
(Vcc)
(Icc)
3.135
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Symbol
(Vc)
Minimum
0.3
-
±30
-10
130K
25
Nominal
1.65
80
-
-
180K
-
-
-
-
-
Maximum
3.0
-
-
10
-
-
1.68
-
-
1.68
Units
Vdc
ppm/V
ppm
%
Ohm
KHz
Vdc
Vdc
Vdc
Vdc
Note
1
(Vil)
(Vih)
(Vil)
(Vih)
-
2.275
2.275
-
2
2
2
2
Bulletin
Page
Revision
Date
Vx605
1 of 2
01
05 Nov 2008
Parameter
LOAD
Voltage
(High)
(Low)
Duty Cycle at 50% Level
Rise / Fall Time 20% to 80%
Symbol
(Voh)
(Vol)
Minimum
-
2.275
-
45
-
Nominal
-
-
-
50
0.30
Maximum
50
-
1.68
55
0.45
Units
Ohms
Vdc
Vdc
%
ns
Note
3
Specifications subject to change without notice. All dimensions in inches. © Copyright 2008 The Connor-Winfield Corporation
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630-851-4722
Fax: 630-851-5040
www.conwin.com
Package Characteristics
Package
Soldering Process
Enable / Disable Function
Hermetically sealed ceramic package with grounded metal cover
RoHS compliant, lead free. See solder profile.
Notes
1.0
Absolute pull range (APR) is the minimum guaranteed pull range of the VCXO under all
conditions over the lifetime operation. Including calibration @ 25°C, frequency vs.
change in temperature, frequency vs. change in supply voltage, frequency vs. change in
load, shock and vibration and aging for ten years. The APR is referenced to Fo. Positive
Transfer Function.
Outputs are enabled with no connection on pad 2. When oscillator is disabled both
outputs are in a high impedance state.
50 ohm termination into Vcc-2V or Thevein equivalent.
Models: V777-V787
Enable / Disable Function (Pad 2)
Output
No Connection
Enable
Low
Enable
High
Disable (High Impedance)
2.0
3.0
Models: V778-V788
Enable / Disable Function (Pad 2)
Output
No Connection
Enable
High
Enable
Low
Disable (High Impedance)
Package Layout
0.275
(7.0mm)
5
4
0.055
(1.4mm)
Test Circuit
6
0.197
(5.0mm)
1
0.070
(1.8mm)
CW
0830
V778
622.08M
2
3
0.102
(2.6mm)
Bottom
View
2
1
Dimensional
Tolerance +/-0.008 (+/-0.2mm)
Vcc = Vcc2 = 3.3Vdc
1.65V
E/D
Rt
Rt
Rt =
Suggested Pad Layout
0.200
(5.08mm)
0.100
(2.54mm)
6
Top
View
1
2
3
5
4
0.079
(2.0mm)
Pad Connections
Pad
1
2
3
4
5
6
Pad Connection
Control Voltage
Enable / Disable
Ground (Case)
Output Q
Output Q
Vcc
Output Waveform
Duty Cycle
45 / 55
Q
80%
50%
20%
Q
tr
tf
45 / 55
Solder Profile
Temperature
260°C
220°C
180°C
150°C
120°C
260°C
0.165
(4.2mm)
Bypass
Capacitor
0.01uF
Ground
0.070
(1.78mm)
0
120 S
Max.
Time
10 S
60 S
Max.
360 Sec. Max.
Tape and Reel Information
Ordering Information
V7
Type:
5x7mm
LVPECL
High
Frequency
VCXO
7
Temperature Range:
7 = 0 to 70° C
8 = -40 to 85° C
APR:
+/-30ppm
8
-
622.08M
Output Frequency:
Frequency Format
-xxx.xM Min.*
-xxx.xxxxxxM Max.*
*Amount of numbers
after the decimal point.
M = MHz
Enable/Diasble:
7=Enable Low
8 = Enable High
Supply Voltage:
3.3Vdc
1
Example:
V778-622.08M = 5x7mm, LVPECL, VCXO,
3.3Vdc, -40 to 85C, +/-30APR,
Output Frequency 622.08MHz
US Headquarters:
630-851-4722
European Headquarters:
+353-61-472221
Vx605
2 of 2
01
05 Nov 2008
Bulletin
Page
Revision
Specifications subject to change without notice. All dimensions in inches. © Copyright 2008 The Connor-Winfield Corporation
Date