
M670 Datasheet Rev 12.1
3
of 6
Revised 09Apr2003
Integrated Circuit Systems, Inc.
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Communications Modules
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tel (508) 852-5400
M670
V
OLTAGE
C
ONTROLLED
SAW O
SCILLATOR
P r o d u c t D a t a S h e e t
Circuit ELECTRICAL
S
PECIFICATIONS
DC Characteristics
Unless stated otherwise, V
CC
= 3.3 Volts + 10%, T
A
= 0 to 85
o
C, VCSO Frequency =622-695MHz, Outputs terminated into 180
to ground
Symbol Parameter
Pin
Power Supply V
CC
Positive Supply Voltage
VCC
I
CC
Power Supply Current
Control
Voltage
VIN
V
IN
Input Impedence
V
IN
Modulation Bandwidth
Clock Enable
Pull-up
V
IL
Input Low Voltage
I
IH
Input High Current
I
IL
Input Low Current
R
pullup
Internal Pull-up Resistor
Differential
Outputs
FOUT nFOUT
V
P
-
P
Peak to Peak Output Voltage
I
OUT
Output Current
Min
2.97
Typ
3.3
Max
3.63
Unit
V
mA
V
k
kHz
V
V
80
100
V
IN
Input Control Voltage Range
0
V
cc
100
500
V
IH
Input High Voltage
CLK_EN
2
V
cc
+
0.3
0.8
-
0.3
5
μ
A
-1
50
μ
A
51
k
V
OH
V
OL
Output High Voltage
Output Low Voltage
V
cc
-
0.98
V
cc
-
1.95
0.4
V
cc
-
0.75
V
cc
-
1.63
0.85
V
V
V
P
-
P
mA
0.6
20
Table 5: DC Characteristics
AC Characteristics
Unless stated otherwise, V
CC
= 3.3 Volts + 10%, T
A
= 0 to 85
o
C, VCSO Frequency =622-695MHz, Outputs terminated into 180
to ground
Symbol Parameter
Frequency
F
OUT
Output Center Frequency Range
APR
Absolute Pull-Range
1
f
STAB
Frequency Stability
L
IN
Tuning Linearity
Min
155
±
50
Typ
Max
700
Unit
MHz
ppm
ppm p-p
%
Notes
110
6
K
VCO
VCO Gain
@
622.08
MHz
265
ppm/V
V
IN
=
0.3
to
3.0
V
Best fit straight line
Outputs
Non-harmonic Spurious
SSB Phase Noise
offset from carrier
-50
-70
dBc
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
ps rms
ps rms
%
ps
Φ
n
100Hz Offset
1kHz Offset
10kHz Offset
100kHz Offset
12kHz to 20MHz
50kHz to 80MHz
-43
-70
-98
-124
0.36
0.19
J(t)
Jitter (rms)
odc
t
R
t
F
Output Duty Cycle
2
Output Rise Time
2
for
FOUT
nFOUT
Output Fall Time
2
for
FOUT
nFOUT
45
55
300
400
20
% to
80
%
300
400
ps
20
% to
80
%
Table 6: AC Characteristics
Note 1: Consult ICS for availability of other APRs.
Note 2: See
Parameter Measurement Information
on
pg. 4
.