op4008b RF Monolithics, Inc., op4008b Datasheet

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op4008b

Manufacturer Part Number
op4008b
Description
669.327 Mhz Optical Timing Clock
Manufacturer
RF Monolithics, Inc.
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
OP4008B
Manufacturer:
RFM
Quantity:
5 000
Electrical Characteristics
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Over the range of 669.327 MHz ±25 ppm and the conditions of Note 1.
www.RFM.com
©2008 by RF Monolithics, Inc.
• Quartz SAW Stabilized and Filtered “Diff Sine” Technology
• Fundamental-Mode Oscillation at 669.327 MHz
• Voltage Tunable for Phase Lock Loop Operations
• Optical Timing Reference for Forward Error Correction Applications
The output of this device is generated and filtered by narrow-band quartz SAW elements at 669.327 MHz.
The configuration of this clock provides a pure signal for optical timing applications in noisy signal
environments. The Q/Q differential output swing of ±1 volt about 0 Vdc has symmetry better than ±1% into
loads from 40 to 70 ohms, determined by customer application. The long term frequency accuracy is set by
an external reference source allowing this device to complete a Phase Lock Loop design without the usual
noise and jitter problems associated with PLL’s.
Absolute Maximum Ratings
Rating
DC Suppy Voltage
Tuning Voltage
Case Temperature
Characteristic
Output DC Resistance (between Q & Q)
DC Power Supply
Operating Frequency
Q and Q Output
Phase Noise
Q and Q Jitter
Operating Case Temperature
Lid Symbolization (YY=Year, WW=Week)
Unless otherwise noted, all specifications include any combination of load VSWR, Vcc, and temperature, with Q and Q terminated into 50 ohm loads to
ground (see typical test circuit).
Useful tuning range is in excess of what is required over temp, aging, pushing, pulling & accuracy.
The design, manufacturing process, and specifications of this device are subject to change without notice.
Only under the nominal conditions of 50 Ω load impedance with VSWR ≤ 1.2 and nominal power supply voltage.
Symmetry is defined as the pulse width (in percent of total period) measured at the 50% points of Q or Q (see timing definitions).
Jitter and other spurious outputs induced by externally generated electrical noise on V
where noted. External voltage regulation and careful PCB layout are recommended for optimum performance.
Applies to period jitter of Q and Q. Measurements are made with the Tektronix CSA803 signal analyzer with at least 1000 samples.
Linearity is a function of the percentage variation from a permitted linear deviation versus the amount of frequency tune range (see linearity definition).
One or more of the following United States patents apply: 4,616,197; 4,670,681; 4,760,352.
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
COCOM CAUTION: Approval by the U.S. Department of Commerce is required prior to export of this device.
Notes:
with 200 mV
E-mail: info@rfm.com
P-P
noise added from 1 MHz to ½ f
Voltage into 50 Ω (VSWR≤1.2)
Absolute Frequency
Tuning Range
Tuning Voltage
Tuning Linearity
Tuning Sensitivity
Modulation Bandwidth
Operating Load VSWR
Symmetry
Harmonic Spurious
Nonharmonic Spurious
@100 Hz offset
@ 1 kHz offset
@ 10 k offset
Noise Floor
RMS Jitter
No Noise on V
Operating Voltage
Operating Current
CC
O
Sym
df/dv
V
I
V
T
f
CC
CC
O
C
O
Value
-55 to 100
0 to 5.5
3, 4, 6, 7
3, 4, 6, 7
3, 4, 6, 7
0 to 6
Notes
3, 4, 5
3, 4, 6
2,10
1, 9
1, 8
1, 3
1, 3
1, 3
1, 3
1,3
1,3
2
1
3
CC
or mechanical vibration are not included in this specification, except
Units
Minimum
RFM OP4008B YYWW
±100
0.60
3.13
140
125
-40
49
50
0
Vdc
Vdc
°C
Typical
669.327
3.3, 5.0
-105
-125
-155
265
-75
±3
12
12
2
Timing Clock
669.327 MHz
OP4008B
Optical
Maximum
SMC-08
5.25
+85
300
1.1
2:1
-30
-60
+3
51
70
OP4008B - 3/27/08
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
ppm/V
Units
ps
ps
ps
MHz
ppm
V
kHz
dBc
dBc
Vdc
Page 1 of 5
mA
°C
%
%
V
P-P
P-P
P-P
P-P

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op4008b Summary of contents

Page 1

... RFM OP4008B YYWW or mechanical vibration are not included in this specification, except CC SMC-08 Units MHz ppm + 300 ppm/V kHz 1.1 V P-P 2 -30 dBc -60 dBc dBc/Hz dBc/Hz dBc/Hz dBc/Hz ps P-P ps P-P ps P-P KΩ 5.25 Vdc 70 mA +85 °C Page OP4008B - 3/27/08 ...

Page 2

... The phase noise in the OP4008B Clock is good enough to allow the loop bandwidth to be set at 100 Hz or less. Optical timing systems containing multiple or cascaded timing loops have additional considerations that apply. For example, jitter peaking is often determined by VCO linearity. ...

Page 3

... Load Recommendations for the OP4008B The Q and Q outputs of RFM's OPB-series of SAW clocks are AC- coupled internally. This allows customers to set the DC level of the outputs with a simple resistor pair on each output to drive most any application. V TUNE Equations 1 & 2 describe the voltage divider created by R1 & R2 and the equilivent load impedence set by the parrellel combination of R1 & R2. ...

Page 4

... Single Sideband Phase Noise Jitter www.RFM.com E-mail: info@rfm.com ©2008 by RF Monolithics, Inc. Jitter with 200 mV of power supply noise Symmetry Page OP4008B - 3/27/08 ...

Page 5

... Nominal E 2.24 Nominal 0.088 Nominal F 1.27 Nominal 0.050 Nominal G 2.54 Nominal 0.100 Nominal H 3.05 Nominal 0.120 Nominal J 1.93 Nominal 0.076 Nominal K 5.54 Nominal 0.218 Nominal L 4.32 Nominal 0.170 Nominal M 4.83 Nominal 0.190 Nominal N 0.50 Nominal 0.020 Nominal D E (X8 (X3) (X2 Inches MAX 0.550 0.380 Page OP4008B - 3/27/08 ...

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