THE CONNOR-WINFIELD CORP.
2111 COMPREHENSIVE DRIVE.
AURORA, IL 60505.
FAX (630) 851-5040.
PHONE (630) 851-4722.
HTTP://WWW.CONWIN.COM
P R O D UC T D ATA S H E E T
CRYSTAL CONTROLLED OSCILLATORS
5.0V SURFACE MOUNT VCSO OSCILLATOR
VSPM634C
ABSOLUTE MAXIMUM RATINGS
PARAMETER
TABLE 1.0
NOTE
UNITS
MINIMUM NOMINAL MAXIMUM
UNITS
°C
Storage Temperature
Supply Voltage
-55
-0.5
-0.5
-
-
-
125
7.0
7.0
(Vcc)
(Vc)
Vdc
Vdc
DESCRIPTION
Control Voltage
The Connor-Winfield VSPM634C
is a 5.0V Voltage Controlled SAW
Oscillator (VCSO) with
Differential PECL outputs and a
CMOS Enable/Disable input. The
VSPM634C is designed for use
with PLL systems in SONET/SDH
systems requiring low jitter and
tight stability. No multiplication
schemes are used in this
OPERATING SPECIFICATIONS
PARAMETER
TABLE 2.0
NOTE
MINIMUM NOMINAL MAXIMUM
UNITS
622.0800
644.5313
666.0800
690.5692
-
-
150
85
5.25
80
3.0
0.5
-
Center Frequency
(Fo)
693.4830
MHz
ppm
Frequency Stability
-150
-
-
1
Operating Temperature Range
Supply Voltage
-40
°C
(Vcc)
(Icc)
4.75
5.0
-
Vdc
Supply Current
-
-
-
-
-
-
-
mA
Jitter (BW=10Hz to 20MHz)
Jitter (BW=12kHz to 80MHz)
SSB Phase Noise at 100Hz offset
SSB Phase Noise at 1KHz offset
SSB Phase Noise at 10KHz offset
SSB Phase Noise at 100KHz offset
-
ps rms
ps rms
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
oscillator design.
-
-70
-105
-145
-155
-
-
-
INPUT CHARACTERISTICS
PARAMETER
TABLE 3.0
NOTE
FEATURES
MINIMUM NOMINAL MAXIMUM
UNITS
Vdc
Control Voltage Range
Pull Slope
(Vc)
0.5
-
2.5
4.5
J LEADED SURFACE MOUNT PACKAGE
5.0V OPERATION
250
-
-
ppm / V
ppm
%
2
3
Absolute Pull Range (APR)
Monotonic Linearity
+/-50
-20
-
-
-
20
-
Input Impedance
50K
Ohm
KHz
Vdc
LOW JITTER <0.5pS RMS
-
-
-
Modulation Bandwidth (3dB)
10
2.0
-
-
CMOS - Enable Input Voltage
CMOS - Disable Input Voltage
(High)
(Low)
(Vih)
(Vil)
-
4
4
FREQUENCY STABILITY: ±150ppm
TEMPERATURE RANGE: -40 to 85°C
DIFFERENTIAL PECL OUTPUTS
ENABLE / DISABLE FUNCTION
TAPEAND REEL PACKAGING
0.4
Vdc
LOW VOLTAGE PECL OUTPUT CHARACTERISTICS
PARAMETER
TABLE 4.0
NOTE
5
MINIMUM NOMINAL MAXIMUM
UNITS
Ohms
Vdc
Vdc
%
LOAD
-
3.96
-
-
-
50
-
Voltage (High)
(Voh)
(Vol)
Voltage (Low)
-
3.40
55
Duty Cycle at 50% Level
Rise / Fall Time 20% to 80%
45
-
50
250
400
pS
PACKAGE CHARACTERISTICS
TABLE 5.0
Package
Hermetically sealed, J leaded ceramic surface mount package.
ORDERING INFORMATION
Notes
VSPM634C - 622.08MHz
1.0
2.0
3.0
Frequency stability vs. temperature. Control voltage (Vc) = 2.50 Vdc.
Referenced to Fo @ 25°C. Positive Slope.
Absolute pull range (APR) is the minimum guaranteed pul l range of the VCXO under all conditions for ten year lifetime
operation. The APR is referenced to Fo.
With no connect on the enable / disable pin (pin 2) output is enabled. W hen oscillator is disabled the true output is in a
low state (Vol) and the complementary output is in the high state (V oH)
50 ohm termination into Vcc-2V or Thevein equivalent.
VCSO
CENTER
FREQUENCY
SERIES
4.0
5.0
Specifications subject to change without notice.
10/19/04
Vs010
1
2
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Copyright 2001 Connor-Winfield all rights reserved.
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