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M685 Datasheet(PDF) 3 Page - Integrated Circuit Systems

Part No. M685
Description  DUAL SAW, SELECTABLE FREQUENCY VCSO
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Maker  ICST [Integrated Circuit Systems]
Homepage  http://www.icst.com
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M685 Datasheet(HTML) 3 Page - Integrated Circuit Systems

   
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M685 Datasheet Rev 0.4
3 of 7
Revised 16Nov2004
Integr ated Circuit Systems , Inc. ● Netw o r ki ng & C o mmun ica t io ns ● ww w. icst.com ● tel (5 08) 85 2-54 00
M685
DUAL SAW, SELECTABLE FREQUENCY VCSO
Preliminar y In f o r m atio n
Integrated
Circuit
Systems, Inc.
ELECTRICAL SPECIFICATIONS FOR M685-01
DC Characteristics for M685-01
Unless stated otherwise, V
CC = 3.3 Volts + 10%, TA = 0 to 85
oC, VCSO Freq.’s = 155.52, 167.3316MHz, Outputs terminated into 180Ω to 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
90
125
mA
Control
Voltage
V
IN
Input Control Voltage Range
VIN
0
3.3
V
V
IN Input Impedence
100
k
Frequency
Select1
Note 1: Internally pulled down to Logic 0 (Frequency 1) if left unselected.
V
IH
Input High Voltage
F_SEL
2
Vcc + 0.3 V
V
IL
Input Low Voltage
-0.3
0.8
V
I
IH
Input High Current
5
µA
I
IL
Input Low Current
-150
µA
Rpulldown Internal Pull-down Resistor
51
k
Differential
Outputs
V
OH
Output High Voltage
FOUT, nFOUT
Vcc - 0.98
Vcc - 0.75 V
V
OL
Output Low Voltage
Vcc - 1.95
Vcc - 1.63 V
V
P
-P
Peak to Peak Output Voltage2
Note 2: Single-ended measurement. See Figure 3, Output Rise and Fall Time, on pg. 5.
0.450
0.625
0.85
V
P
-P
I
OUT
Output Current
20
mA
Table 5: DC Characteristics for M685-01
AC Characteristics for M685-01
Unless stated otherwise, V
CC = 3.3 Volts + 10%, TA = 0 to 85
oC, VCSO Freq.’s = 155.52, 167.3316MHz, Outputs terminated into 180Ω to ground
Symbol Parameter
Min
Typ
Max
Unit Notes
Control Voltage V
IN
Modulation Bandwidth
VIN
600
kHz
Output
F
OUT
Output Center Frequency Range M685-01
125
175
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
100
ppm p-p At any givin VIN
L
IN
Tuning Linearity
6
%
VIN = 0.3 to 3.0V
Best fit straight line
K
VCO
VCO Gain
@155.52MHz
400
ppm/V VIN = 0.3 to 3.0V
Non-harmonic Spurious
-50
-77
dBc
Φn
SSB (single sideband)
Phase Noise, offset
from carrier
@155.52MHz
100Hz Offset
-48
dBc/Hz
1kHz Offset
-75
dBc/Hz
10kHz Offset
-99
dBc/Hz
100kHz Offset
-124
dBc/Hz
1MHz Offset
-142
dBc/Hz
J(t)
Jitter (rms)
@155.52MHz
12kHz to 20MHz
0.30
ps rms
50kHz to 80MHz
0.18
ps rms
odc
Output Duty Cycle 2
Note 2: See Parameter Measurement Information on pg. 5.
45
55
%
t
R
Output Rise Time 2 for FOUT, nFOUT
275
425
ps
20
% to 80%
t
F
Output Fall Time 2 for FOUT, nFOUT
275
425
ps
20
% to 80%
Table 6: AC Characteristics for M685-01


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