ICST M675-01 Voltage controlled saw oscillator Datasheet

Preliminary Information
Integrated
Circuit
Systems, Inc.
M675
VOLTAGE CONTROLLED SAW OSCILLATOR
4
FOUT
nFOUT
5
6
M675
M675
2
3
CLK_EN
GND
(Top View)
1
The M675 is a VCSO (Voltage Controlled SAW
Oscillator) frequency source for low-jitter
clock generation. An integrated SAW
(surface acoustic wave) delay line
implements the high-Q VCO (voltage
controlled oscillator) function, which
results in low output phase noise and very low jitter.
The M675-01 is available in a range of center
frequencies from 125 to 175 MHz. The M675-02
provides 500 to 700 MHz. Guaranteed minimum
pull-range of ±100 ppm meets GbE requirements.
(It also fully satisfies ±50 ppm minimum pull-range
specification commonly required.) Industry-standard
Kvco (VCO Gain) provides full replacement compatibility. The M675 is well suited for phase-locked loop
implementations, clock and data recovery circuits, and
other timing applications in telecom and optical fiber
networking systems (e.g., SONET/SDH).
VCC
PIN ASSIGNMENT (5 x 7.5mm SMT)
VIN
GENERAL DESCRIPTION
Figure 1: Pin Assignment
Sample of Available Output Frequencies
VCSO Center Frequencies1 (MHz)
M675-01
M675-02
FEATURES
◆ Integrated SAW device
◆ M675-01 output frequencies from 125 to 175 MHz
M675-02 output frequencies from 500 to 700 MHz
(Specify center frequency at time of order)
Applications
155.5200
622.0800
SONET/SDH
156.2500
625.0000
Gigabit Ethernet
161.1328
644.5313
Gigabit Ethernet FEC
167.3316
669.3266
SONET/SDH FEC
◆ Industry-standard Kvco for full compatibility
Table 1: Sample of Available Output Frequencies
◆ Low phase jitter 0.2ps rms typical for the M675-02
(50kHz to 80MHz)
Note 1: Specify VCSO center frequencies at time of order
◆ Differential 3.3V LVPECL output
◆ Single 3.3V power supply
◆ Small 5 x 7.5mm SMT (surface mount) package
BLOCK DIAGRAM
M675
M670
SAW Delay Line
FOUT
Phase
Shifter
nFOUT
VIN
CLK_EN
Figure 2: Block Diagram
M675 Datasheet Rev 0.4
Revised 16Nov2004
M675 Voltage Controlled SAW Oscillator
Integrated Circuit Systems, Inc.
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M675
Integrated
Circuit
Systems, Inc.
VOLTAGE CONTROLLED SAW OSCILLATOR
Preliminary Information
PIN DESCRIPTIONS
Number
1
Name
VIN
I/O
2
CLK_EN
Input
3
GND
Ground
4
5
6
FOUT
nFOUT
VCC
Configuration
Input
Internal pull-up resistor1
Description
Frequency control input.
Clock enable:
Logic 1 enables normal operation.
Logic 0 stops the output clock;
nFOUT is held high, FOUT is held low.
Power supply ground connection.
Output
No internal terminator
Power
Clock output pair. Differential LVPECL.
Power supply connection, connect to +3.3V.
Table 2: Pin Descriptions
Note 1: See “Clock Enable Pull-up” in Table 5 (DC Characteristics for M675-01 on pg. 3) and Table 7 (DC Characteristics for M675-02 on pg. 4).
ABSOLUTE MAXIMUM RATINGS1
Symbol Parameter
Rating
Unit
VI
Inputs
-0.5 to VCC +0.5
V
VO
Outputs
-0.5 to VCC +0.5
V
VCC
Power Supply Voltage
TS
Storage Temperature
4.6
V
-55 to +125
oC
Table 3: Absolute Maximum Ratings
Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the
device. These ratings are 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.
RECOMMENDED CONDITIONS OF OPERATION
Symbol Parameter
Min
Typ
Max
Unit
3.63
V
VCC
Positive Supply Voltage
2.97
3.3
TA
Ambient Operating Temperature
-40
25
oC
+85
Table 4: Recommended Conditions of Operation
M675 Datasheet Rev 0.4
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M675
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Circuit
Systems, Inc.
VOLTAGE CONTROLLED SAW OSCILLATOR
Preliminary Information
ELECTRICAL SPECIFICATIONS FOR M675-01
DC Characteristics for M675-01
Unless stated otherwise, VCC = 3.3 Volts + 10%, TA = 0 to 85 oC, VCSO Freq.s = 155.52 MHz, Outputs terminated into 180Ω to ground
Symbol Parameter
Power Supply VCC
Control
Voltage
Positive Supply Voltage
VCC
ICC
Power Supply Current
VIN
Input Control Voltage Range
Min
Typ
Max
Unit
2.97
3.3
3.63
V
85
125
mA
3.3
V
0
VIN
VIN Input Impedence
Clock Enable VIH
Pull-up1
VIL
Differential
Outputs
Pin
kΩ
100
Input High Voltage
2
Vcc + 0.3
V
Input Low Voltage
-0.3
0.8
V
5
µA
IIH
Input High Current
IIL
Input Low Current
Rpullup
Internal Pull-up Resistor
VOH
Output High Voltage
VOL
Output Low Voltage
VP-P
Peak to Peak Output Voltage2
IOUT
Output Current
CLK_EN
µA
-150
kΩ
51
Vcc - 0.98
FOUT, nFOUT
Vcc - 0.75 V
Vcc - 1.95
0.450
Vcc - 1.63 V
0.625
0.85
V P- P
20
mA
Table 5: DC Characteristics for M675-01
Note 1: Internally pulled up to Logic 1 (normal operation) if left unselected.
Note 2: Single-ended measurement. See Figure 3, Output Rise and Fall Time, on pg. 5.
AC Characteristics for M675-01
Unless stated otherwise, VCC = 3.3 Volts + 10%, TA = 0 to 85 oC, VCSO Freq. = 155.52 MHz, Outputs terminated into 180Ω to ground
Symbol Parameter
Min
Control Voltage VIN
Modulation Bandwidth
Output
Output Center Frequency Range M675-01
FOUT
VIN
APR
Absolute (Guaranteed) Pull-Range
fSTAB
Frequency Stability
LIN
Tuning Linearity
KVCO
VCO Gain
Max
1
125
175
±100
J(t)
Jitter (rms)
odc
Output Duty Cycle 2
100Hz Offset
400
ppm/V VIN = 0.3 to 3.0V
-77
dBc
-52
55
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
ps rms
ps rms
%
1kHz Offset
-80
-112
100kHz Offset
-136
1MHz Offset
-146
0.36
50kHz to 80MHz
0.50
45
2
VIN = 0.3 to 3.0V
Best fit straight line
%
10kHz Offset
12kHz to 20MHz
MHz
ppm p-p At any givin VIN
6
SSB (single sideband)
Phase Noise, offset
from carrier
Notes
ppm
100
-50
Unit
kHz
500
Non-harmonic Spurious
Φn
Typ
tR
Output Rise Time for FOUT, nFOUT
275
425
ps
20% to 80%
tF
Output Fall Time 2 for FOUT, nFOUT
275
425
ps
20% to 80%
Note 1: Also fully meets ±50 ppm minimum pull-range specification that is commonly required.
Note 2: See Parameter Measurement Information on pg. 5.
M675 Datasheet Rev 0.4
Integrated Circuit Systems, Inc.
Table 6: AC Characteristics for M675-01
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M675
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Circuit
Systems, Inc.
VOLTAGE CONTROLLED SAW OSCILLATOR
Preliminary Information
ELECTRICAL SPECIFICATIONS FOR M675-02
DC Characteristics for M675-02
Unless stated otherwise, VCC = 3.3 Volts + 10%, TA = 0 to 85 oC, VCSO Freq. = 622.08 MHz, Outputs terminated into 180Ω to ground
Symbol Parameter
Power Supply VCC
Control
Voltage
Positive Supply Voltage
VCC
ICC
Power Supply Current
VIN
Input Control Voltage Range
Min
Typ
Max
Unit
2.97
3.3
3.63
V
85
125
mA
3.3
V
0
VIN
VIN Input Impedence
Clock Enable VIH
Pull-up1
VIL
Differential
Outputs
Pin
kΩ
100
Input High Voltage
2
Vcc + 0.3
V
Input Low Voltage
-0.3
0.8
V
5
µA
IIH
Input High Current
IIL
Input Low Current
Rpullup
Internal Pull-up Resistor
VOH
Output High Voltage
VOL
Output Low Voltage
VP-P
Peak to Peak Output Voltage2
IOUT
Output Current
CLK_EN
µA
-150
kΩ
51
Vcc - 0.98
FOUT, nFOUT
Vcc - 0.75 V
Vcc - 1.95
0.450
Vcc - 1.63 V
0.625
0.85
VP-P
20
mA
Table 7: DC Characteristics for M675-02
Note 1: Internally pulled up to Logic 1 (normal operation) if left unselected.
Note 2: Single-ended measurement. See Figure 3, Output Rise and Fall Time, on pg. 5.
AC Characteristics for M675-02
Unless stated otherwise, VCC = 3.3 Volts + 10%, TA = 0 to 85 oC, VCSO Freq. = 622.08 MHz, Outputs terminated into 180Ω to ground
Symbol Parameter
Min
Control Voltage VIN
Modulation Bandwidth
Output
Output Center Frequency Range M675-02
FOUT
VIN
APR
Absolute (Guaranteed) Pull-Range
fSTAB
Frequency Stability
LIN
Tuning Linearity
KVCO
VCO Gain
Max
1
500
700
±100
Jitter (rms)
odc
Output Duty Cycle 2
MHz
ppm p-p At any givin VIN
VIN = 0.3 to 3.0V
Best fit straight line
%
6
J(t)
Notes
ppm
100
SSB (single sideband)
Phase Noise, offset
from carrier
Unit
kHz
500
400
ppm/V VIN = 0.3 to 3.0V
-77
dBc
100Hz Offset
-48
55
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
ps rms
ps rms
%
Non-harmonic Spurious
Φn
Typ
-50
1kHz Offset
-75
10kHz Offset
-99
100kHz Offset
-124
1MHz Offset
-142
12kHz to 20MHz
0.30
50kHz to 80MHz
0.18
45
2
tR
Output Rise Time for FOUT, nFOUT
275
400
ps
20% to 80%
tF
Output Fall Time 2 for FOUT, nFOUT
275
400
ps
20% to 80%
Note 1: Also fully meets ±50 ppm minimum pull-range specification that is commonly required.
Note 2: See Parameter Measurement Information on pg. 5.
M675 Datasheet Rev 0.4
Integrated Circuit Systems, Inc.
Table 8: AC Characteristics for M675-02
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M675
Integrated
Circuit
Systems, Inc.
VOLTAGE CONTROLLED SAW OSCILLATOR
Preliminary Information
PARAMETER MEASUREMENT INFORMATION
Output Rise and Fall Time
Output Duty Cycle
nFOUT
80%
80%
VP-P
Clock
Outputs
20%
tF
20%
tR
FOUT
tPW
(Output Pulse Width)
tPERIOD
Figure 3: Output Rise and Fall Time
odc =
tPW
tPERIOD
Figure 4: Output Duty Cycle
DEVICE PACKAGE - 5 x 7.5mm SMT (Surface Mount) Package
Mechanical Dimensions:
-02-AA
Dimensions are in mm;
dimensions in [ ] are in inches
Unless otherwise specified, all
dimensions are ±0.13 [0.005]
Figure 5: Device Package - 5 x 7.5mm SMT (Surface Mount) Package
M675 Datasheet Rev 0.4
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Integrated
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M675
Preliminary Information
VOLTAGE CONTROLLED SAW OSCILLATOR
ORDERING INFORMATION
Part Numbering Scheme
Part Number:
M675-01 Standard Output Frequencies & Order Codes
M675
M680-01
-0y - xx
Device Number
Variant
-01 = Output Frequencies 125 - 175 MHz
-02 = Output Frequencies 500 - 700 MHz
Output Frequency Order Code
See Tables 10 and 11 at right for frequency order codes.
Consult ICS for other frequencies and order codes.
Figure 6: Part Numbering Scheme
Example Order Numbers
For Output Order Part #
Frequencies M675-01-Bx
153.6000
BO
167.2820
BF
155.5200
BA
167.3280
BG
156.2500
BB
167.3316
BH
156.8324
BC
167.7097
BI
161.1328
BD
168.0400
BJ
164.3555
BM
172.6423
BK
166.6286
BE
173.3708
BL
Table 10: M675-01 Standard Output Frequencies & Order Codes
For Output Order Part #
Frequencies M675-02-Ax
M675-02 Standard Output Frequencies & Order Codes
614.4000
AO
669.1281
AF
155.5200
M675-01-BA
622.0800
M675-02-AA
622.0800
AA
669.3120
AG
156.2500
M675-01-BB
625.0000
M675-02-AB
625.0000
AB
669.3266
AH
161.1328
M675-01-BD
644.5313
M675-02-AD
627.3296
AC
670.8386
AI
167.3316
M675-01-BH
669.3266
M675-02-AH
644.5313
AD
672.1600
AJ
657.4219
AM
690.5692
AK
666.5143
AE
693.4830
AL
Table 9: Example Order Numbers
Table 11: M675-02 Standard Output Frequencies & Order Codes
Consult ICS for the availability of other 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.
M675 Datasheet Rev 0.4
Integrated Circuit Systems, Inc.
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