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M675S02-AA

P1-P3P4-P5
M675S02 Datasheet Rev 1.0 Revised 07Feb2012
Integrated Device Technology, Inc. ● N e t c o m T i m i n g ● www.idt.com ● tel (774) 348-1600
M675S02
SIGE SINGLE FREQUENCY VCSO
Preliminary Datasheet
GENERAL DESCRIPTION
The M675S02 is a single frequency/single output
SAW-based VCSO for low-jitter clock generation. The
SAW (surface acoustic wave) delay line serves as a
high-Q resontaor and the low noise SiGe VCSO IC
provides a low noise floor and low 1/f phase noise. The
combination of the SAW delay line and the custom IC
result in very low phase noise and jitter performance.
The M675S02 is available in frequencies from 500 to
1000 MHz with a guaranteed minimum pull-range
of ±120 ppm. Industry-standard Kvco (VCO Gain)
provides full replacement compatibility for most
designs. The M675S02 is well suited for phase-locked
loop applications, clock and data recovery circuits and
other timing applications in telecom and optical fiber
networking systems.
FEATURES
◆ Integrated SAW device
◆ Low phase jitter 0.2ps rms typical for the M675S02
(50kHz to 80MHz) - Design Target
◆ Output frequencies from 500 to 1000 MHz
(Specify center frequencies at time of order)
◆ Industry-standard Kvco for full compatibility
◆ Differential 3.3V LVPECL output
◆ Single 3.3V power supply
◆ Small 5 x 7.5mm SMT (surface mount) package
◆ Pb-free / Compliant to EC RoHS Directive (RoHS 5/6)
PIN ASSIGNMENT (5 x 7.5mm SMT)
Figure 1: Pin Assignment
BLOCK DIAGRAM
Figure 2: Block Diagram
Sample of Available Output Frequencies
VCSO Center
Frequencies
1
(MHz)
Note 1: Specify VCSO center frequency at time of order
Applications
622.0800 SONET/SDH
625.0000 Gigabit Ethernet
644.5313 GbE FEC
669.3266
SONET/SDH FEC
Table 1: Sample of Available Output Frequencies
M675S02
(Top View)
1
2
34
5
6
VIN
CLK_EN
VCC
nFOUT
GND FOUT
CLK_EN
VIN
FOUT
nFOUT
SAW Delay Line
Phase
Shifter
M675S02
M675S02 SiGe Single Frequency VCSO
M675S02 Datasheet Rev 1.0 2 of 5 Revised 07Feb2012
Integrated Device Technology, Inc. ● N e t c o m T i m i n g ● www.idt.com ● tel (774) 348-1600
M675S02
S
I
G
E
S
INGLE
F
REQUENCY
VCSO
Preliminary Datasheet
PIN DESCRIPTIONS
Number Name
I/O
Configuration Description
1VIN
Input Frequency control input.
2CLK_EN
Input Internal pull-up resistor
1
Clock Enable
Logic
1 enables normal operation.
Logic 0 stops the output clock;
nFOUT is held high, FOUT is held low.
3GND
Ground Power supply ground connection.
4
5
FOUT
nFOUT
Output No internal terminator Clock output pair. Differential LVPECL.
6VCC
Power Power supply connection, connect to +3.3V.
Table 2: Pin Descriptions
Note 1: See “Clock Enable Pull-up” in Table 5 (DC Characteristics for M675S02 on pg. 3).
ABSOLUTE MAXIMUM RATINGS
1
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
.
Symbol Parameter Rating Unit
V
I
Inputs -0.5 to V
CC
+0.5 V
V
O
Outputs -0.5 to V
CC
+0.5 V
V
CC
Power Supply Voltage
4.0
V
T
S
Storage Temperature -55 to +125
o
C
Table 3: Absolute Maximum Ratings
RECOMMENDED CONDITIONS OF OPERATION
Symbol Parameter Min Typ Max Unit
V
CC
Positive Supply Voltage
2.97 3.3 3.63
V
T
A
Ambient Operating Temperature
-40
+85
o
C
Table 4: Recommended Conditions of Operation
M675S02 Datasheet Rev 1.0 3 of 5 Revised 07Feb2012
Integrated Device Technology, Inc. ● N e t c o m T i m i n g ● www.idt.com ● tel (774) 348-1600
M675S02
S
I
G
E
S
INGLE
F
REQUENCY
VCSO
Preliminary Datasheet
ELECTRICAL SPECIFICATIONS
DC Characteristics for M675S02
Unless stated otherwise, V
CC
= 3.3 Volts + 10%, T
CASE
= -40 to 85
o
C, VCSO Frequency = 622.08, Outputs terminated with 50
Ω
to V
CC
-2.0V ground
Symbol Parameter Pin Min Typ Max Unit
Power Supply V
CC
Positive Supply Voltage
VCC
2.97 3.3 3.63
V
I
CC
Power Supply Current
100 120
mA
Control
Voltage
V
IN
Input Control Voltage Range
VIN
0 3.3
V
V
IN
Input Impedence
20
kΩ
Clock Enable
Pull-up
V
IH
Input High Voltage
F_SEL
2
V
cc
+ 0.3 V
V
IL
Input Low Voltage -0.3
0.8
V
I
IH
Input High Current 70 µA
I
IL
Input Low Current -150 µA
R
pullup
Internal Pull-up Resistor
51
kΩ
Differential
Outputs
V
OH
Output High Voltage
FOUT, nFOUT
V
cc
- 0.98 V
cc
- 0.75 V
V
OL
Output Low Voltage V
cc
- 1.95 V
cc
- 1.63 V
V
P-P
Peak to Peak Output Voltage
1
Note 1: Single-ended measurement. See Figure 3, Output Rise and Fall Time, on pg. 4.
0.45 0.625 0.85
V
P-P
I
OUT
Output Current
20
mA
Table 5: DC Characteristics for M675S02
AC Characteristics for M675S02
Unless stated otherwise, V
CC
= 3.3 Volts + 10%, T
CASE
= -40 to 85
o
C, VCSO Frequency = 622.08, Outputs terminated with 50
Ω
to V
CC
-2.0V ground
Symbol Parameter Min Typ Max Unit
Notes
Control Voltage V
IN
Modulation Bandwidth
VIN
600
kHz
Output F
OUT
Output Center Frequency Range 500 1000
MHz
APR Absolute (Guaranteed) Pull-Range
1
Note 1: Also fully meets ±50 ppm minimum pull-range specification that is commonly required.
±120 ppm
f
STAB
Frequency Stability
±120
ppm p-p
At any givin V
IN
L
IN
Tuning Linearity
±10
%
V
IN
=
0.3
to
3.0
V
K
VCO
VCO Gain
@622.08MHz 330
ppm/V
V
IN
=
0.3
to
3.0
V
Non-harmonic Spurious
-60
dBc
Φ n
SSB (single sideband) Phase
Noise, offset from carrier
@
622.08MHz
100Hz Offset -55
dBc/Hz
1kHz Offset -85
dBc/Hz
10kHz Offset -110
dBc/Hz
100kHz Offset -130
dBc/Hz
1MHz Offset -143
dBc/Hz
10MHz Offset
-147
dBc/Hz
J(t) Jitter (rms)
@
622.08MHz
12kHz to 20MHz 0.155
ps rms
50kHz to 80MHz 0.170
ps rms
odc Output Duty Cycle
2
Note 2: See Parameter Measurement Information on pg. 4.
45 55
%
t
R
Output Rise Time
2
for
FOUT,
nFOUT
200 300
ps 20% to 80%
t
F
Output Fall Time
2
for
FOUT,
nFOUT
200 300
ps 20% to 80%
Table 6: AC Characteristics for M675S02
P1-P3P4-P5

M675S02-AA

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Description:
VCSO Oscillators 55SO
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