Integrated
Circuit
Systems, Inc.
Preliminary Information
M635
D
IELECTRIC
R
ESONATOR
VCO
P
IN
A
SSIGNMENT
(1.25 x 1.5 inch SMA)
M635
GND
VCC
VIN
SMA Connector
RF_OUT
G
ENERAL
D
ESCRIPTION
The M635 Voltage Controlled Dielectric Resonator
Oscillator (VCDRO) is specifically designed for
high-speed SONET/SDH OC-192 applications and
beyond. With an available center frequency range
of 10 to 14GHz, and a tuning range of up to 40MHz,
the VCDRO can be used in both OC-192 and
OC-768 applications. The tuning range is
±1000
ppm from center frequency.
The integrated Dielectric Resonator provides this
VCO with low phase noise performance and excellent
tuning linearity. The linear tuning range makes the
M635 especially suited for phase-locked loop imple-
mentations, clock and data recovery circuits, and
other timing applications for the telecom and optical
fiber networking markets (OC-192/STM-64 with and
without Forward Error Correction - FEC).
Figure 1: Pin Assignment
Sample of Available Output Frequencies
VCDRO Center Frequency
1
(GHz)
10 GHz
10.664 GHz
14 GHz
Applications
OC-192
OC-192, OTU2 FEC
OC-192
Table 1: Sample of Available Output Frequencies
F
EATURES
◆
Voltage Controlled DRO center frequencies from 10 to
14 GHz (Specify center frequency at time of order)
◆
Low phase jitter 0.05ps rms typical (50kHz to 80MHz)
◆
Low phase noise -65dBc/Hz @ 1kHz offset
◆
Very linear and broad tuning range of 10 to 40MHz
◆
Ideal for high-speed fiber optic applications
◆
Single 5V power supply
◆
Small 1.25 x 1.5 inch SMA connector package
Note 1: Specify VCDRO center frequency at time of order
B
LOCK
D
IAGRAM
M635
VCC
VIN
DR
RF
Amp
SIGe Bipolar
Transistor
RF_OUT
GND
Figure 2: Block Diagram
M635 Datasheet Rev 7.1
M635 Dielectric Resonator Oscillator
Revised 10Apr2003
●
Integrated Circuit Systems, Inc.
Communications Modules
●
w w w. i c s t . c o m
●
tel (508) 852-5400
Integrated
Circuit
Systems, Inc.
M635
D
IELECTRIC
R
ESONATOR
O
SCILLATOR
Preliminary Information
P
IN
D
ESCRIPTIONS
Name
GND
VCC
VIN
RF_OUT
I/O
Description
Ground
Power
Input
Output
Power supply ground connections.
Power supply connection, connect to +
5.0
V.
Tuning Voltage
Clock output. SMA connector.
Table 2: Pin Descriptions
A
BSOLUTE
M
AXIMUM
R
ATINGS1
Symbol Parameter
Rating
5.25
-40
to +
125
Unit
V
CC
T
S
Power Supply Voltage
Storage Temperature
V
o
C
Table 3: Absolute Maximum Ratings
Note 1:Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the
device. These ratings ard stress specifications only. Functional operation of product at these conditions
or any conditions beyond those listed in
Recommended Conditions of Operation, DC Characteristics,
or
AC Characteristics
is not implied. Exposure to absolute maximum rating conditions for extended periods
may affect product reliability.
R
ECOMMENDED
C
ONDITIONS OF
O
PERATION
Symbol Parameter
Min
4.75
-40
Typ
5.0
Max
5.25
Unit
V
CC
T
A
Positive Supply Voltage
Ambient Operating Temperature
V
o
C
+
85
Table 4: Recommended Conditions of Operation
E
LECTRICAL
S
PECIFICATIONS
DC Characteristics
Unless stated otherwise, V
CC
= 5.0 Volts +5%, T
A
= 25
o
C, VCDRO Frequency =10-14GHz, Outputs terminated into 50Ω
Symbol Parameter
Min
4.75
Typ
5.0
Max
5.25
150
Unit
Power Supply V
CC
I
CC
Tuning
V
IN
Positive Supply Voltage
Power Supply Current
Tuning Port Impedence
Tuning Voltage
V
mA
kΩ
V
Table 5: DC Characteristics
2
0
15
M635 Datasheet Rev 7.1
Integrated Circuit Systems, Inc.
●
2 of 4
Communications Modules
●
Revised 10Apr2003
w w w. i c s t . c o m
●
tel (508) 852-5400
Integrated
Circuit
Systems, Inc.
M635
D
IELECTRIC
R
ESONATOR
O
SCILLATOR
Preliminary Information
E
LECTRICAL
S
PECIFICATIONS
(
CONTINUED
)
AC Characteristics
Unless stated otherwise, V
CC
= 5.0 Volts +5%, T
A
= 25
o
C, VCDRO Frequency =10-14GHz, Outputs terminated into 50Ω
Symbol Parameter
Min
10
Typ
Max
14
Unit
F
OUT
Output Center
Frequency Range
Temperature Stability
Output Power
Tuning Range
Tuning Linearity
VCO Gain KVCO
Absolute Pull-Range
Non-harmonic Spurious
Harmonics
Single Side Band
Phase Noise
1
kHz Offset
10
kHz Offset
100
kHz Offset
50kHz to 80MHz
GHz
ppm
dBm
MHz
%
ppm/V
ppm
dBc
dBc
dBc/Hz
dBc/Hz
dBc/Hz
ps
Table 6: AC Characteristics
±
300
6
10
20
10
200
40
APR
±
1000
-
60
-
25
-
65
-
90
-
110
0.05
1.5:1
Φ
n
J(t)
Jitter (rms)
Load VSWR (Voltage Standing Wave Ratio)
T
EST
D
ATA
Phase Noise:
Frequency Tuning Characteristics
Frequency Offset (ppm) vs. Tuning Voltage (V)
7000
Frequency Offset (ppm)
6000
5000
4000
3000
2000
1000
0
1.07
3.03
5.07
7.09
9.15
11
13
15
Vtune (VDC)
Figure 3: Phase Noise
Figure 4: Frequency Tuning Characteristics
M635 Datasheet Rev 7.1
Integrated Circuit Systems, Inc.
●
3 of 4
Communications Modules
●
Revised 10Apr2003
w w w. i c s t . c o m
●
tel (508) 852-5400
Integrated
Circuit
Systems, Inc.
M635
D
IELECTRIC
R
ESONATOR
O
SCILLATOR
Preliminary Information
T
EST
D
ATA
(
CONTINUED
)
Typical Temperature Characteristics
Frequency Shift (ppm) vs. Temperature (
o
C)
1
0
Output Power Change vs. Temperature (
o
C)
Dielectric Resonator VCO #2
200
Frequency
Change (dB)
Power
Shift (ppm)
0.5
11.22
1
Frequency (GHz)
Power Change (dB)
11.2
0.5
150
100
-0.5
0
11.18
-0.5
11.16
-1
11.14
-1.5
11.12
-2
11.1
-2.5
11.08
-1
50
-1.5
-2
-2.5
0
-50
10 30 50
70 85
-100
-45 -30 -10
-45 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80
Temperature (degrees C)
Tem perature (degrees C)
-45
1.07
-30
-10
10
30
50
70
85
13
3.03
5.07
7.09
9.15
11
Tem perature (degrees C)
Vtune (VDC)
Figure 5: Typical Temperature Characteristics
Figure 6: Output Power Change vs. Temperature (oC)
D
EVICE
P
ACKAGE
-
1.25 x 1.5 inch
C
ONNECTOR
M
ODULE
Mechanical Dimensions:
1.50
[38.1]
GND
1.25
[31.8]
VCC
VIN
SMA CONN
RF_OUT
#2 MTG CLEARANCE HOLE
0.75
[19.05]
Dimensions are in inches;
dimensions in [ ] are in mm
All dimensions are
±0.02
[0.51]
Figure 7: Device Package - 1.25 x 1.5 inch Connector Module
O
RDERING
I
NFORMATION
For VCDRO Frequency (GHz)
10.664
Order Part Number
M635-10.6640
Table 7: Ordering Information
Consult ICS for the availability of other VCDRO frequencies.
While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems (ICS)
assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would
result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial
applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary
environmental requirements are not recommended without additional processing by ICS. ICS reserves the right to change any
circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use in life support devices or
critical medical instruments.
M635 Datasheet Rev 7.1
Integrated Circuit Systems, Inc.
●
4 of 4
Communications Modules
●
Revised 10Apr2003
w w w. i c s t . c o m
●
tel (508) 852-5400
京公网安备 11010802033920号
EEWORLD
