•
•
•
•
•
•
T2L LV CMOS input and output
Output wavetrain synchronized with input
square wave
8-pin Space Saver package
Available in frequencies from 2 MHz to 80 MHz
12mA output drive capability
Leads - thru-hole, J, Gull Wing or Tucked
shown, the output frequency is locked to the nearest mul-
tiple input frequency. These modules are capable of driving
±12mA.
These Digital Frequency Multiplier Modules are of hybrid
construction utilizing the proven technologies of active inte-
grated circuitry and of passive networks utilizing capacitive,
inductive and resistive elements. The MTBF on these modules,
when calculated per MIL-HDBK-217 for a 50
o
C ground fixed
environment, is in excess of 3 million hours.
These LVQ "Space Saver Series" modules are packaged
in an 8-pin housing, molded of flame-proof Diallyl Phthalate per
MIL-M-14, Type SDG-F, and are fully encapsulated in epoxy
resin. Thru-hole, J, Gull Wing or Tucked Lead configurations
are available on these modules (see Part Number Table note
to specify). Leads meet the solderability requirements of MIL-
STD-202, Method 208. Corner standoffs on the housing of the
thru-hole lead version and lead design of the surface mount
versions provide positive standoff from the printed circuit
board to permit solder-fillet formation and flush cleaning of
solder-flux residues for improved reliability.
Marking consists of manufacturer's name, logo (EC2), part
number, terminal identification and date code of manufacture.
All marking is applied by silk screen process using white epoxy
paint in accordance with MIL-STD-130, to meet the perma-
nency of identification required by MIL-STD-202, Method 215.
design notes
The LVQ "Space Saver Series" Digital Frequency Multiplier Mod-
ules developed by Engineered Components Company have been
designed to provide precise 3V LVQ square wave outputs at selected
clock frequencies which are synchronized by square wave inputs at
sub-harmonic frequencies. These units can be synchronized by any
sub-harmonic frequency; if no synchronizing input is present, the unit
will free-run, providing a square wave output within ±2% of the desired
frequency. Temperature coefficient of this free running frequency
is less than ±600 ppm/
o
C. Like all frequency multipliers, either digital
or sinusoidal, the amount of phase jitter in the output will increase as
higher orders of multiplication are used; although this effect is small,
lower orders of multiplication should be considered in those applica-
tions where these slight time variations are important.
The SSDFMM-LVQ is offered in 36 standard clock frequencies
from 2 MHz to 80 MHz. When tested under the "Test Conditions"
BLOCK DIAGRAM IS SHOWN BELOW
Vcc
8
INPUT
5
TEST CONDITIONS
1. All measurements are made at 25
o
C.
2. V
cc
supply voltage is maintained at 3.3V DC.
3. All units are tested using a LVQ gate providing an input pulse and
one LVQ load at the output.
4. Input is a square wave at 20% of the output frequency
.
X
X
SQUARE
WAVE
OSCILLATOR
X
SYNC.
AMPLIFIER
AND SHAPER
OPERATING SPECIFICATIONS
V
cc
supply voltage:
. . . . . . . . . . . .
2.7 to 3.6V DC
V
cc
supply current:
SSDFMM-LVQ-2
. . . . . . . . . . .
14mA typical
. . . . . . . . . .
22mA typical
SSDFMM-LVQ-80
(Current increases with operating frequency)
Logic 1 Input:
Voltage
. . . . . . . . . . . . . . .
Current
. . . . . . . . . . . . . . .
1
OUTPUT
4
GROUND
MECHANICAL DETAIL IS SHOWN BELOW
Pin No.
8
5
..
..
2V min.; V
cc
max.
Vcc max.; 1uA max.
.8V max.
1µA max.
2.2V min.; Vcc 3.0;
I
OH
-12mA
.4V max. I
OL
+12mA
-40 to +85
o
C.
55 to +125
o
C.
V
IN
OUT
Pin No.
1
C
4
Logic 0 Input:
Voltage
. . . . . . . . . . . . . . . . .
Current
. . . . . . . . . . . . . . . . .
Logic 1 Voltage out:
...........
Logic 0 Voltage out:
. . . . . . . . . . .
Operating temperature range:
. . . . . .
Storage temperature:
. . . . . . . . . . .
PART NUMBER TABLE
¯
Suffix Part Number with G (for Gull Wing Lead), J (for J Lead),
F (for Thru-hole Lead) or T (for Tucked Lead). Examples:
SSDFMM-LVQ-10G (Gull Wing), SSDFMM-LVQ-25J (J Lead),
SSDFMM-LVQ-70F (Thru-hole Lead) or SSDFMM-LVQ-12T
(Tucked Lead).
Thru-hole Lead
PART NUMBER
SSDFMM-LVQ-2
SSDFMM-LVQ-3
SSDFMM-LVQ-4
SSDFMM-LVQ-5
SSDFMM-LVQ-6
SSDFMM-LVQ-7
SSDFMM-LVQ-8
OUTPUT
FREQUENCY
2 MHz
3 MHz
4 MHz
5 MHz
6 MHz
7 MHz
8 MHz
9 MHz
10 MHz
11 MHz
12 MHz
13 MHz
14 MHz
15 MHz
16 MHz
17 MHz
18 MHz
19 MHz
PART NUMBER
SSDFMM-LVQ-20
SSDFMM-LVQ-22
SSDFMM-LVQ-24
SSDFMM-LVQ-25
SSDFMM-LVQ-26
SSDFMM-LVQ-28
SSDFMM-LVQ-30
SSDFMM-LVQ-32
SSDFMM-LVQ-34
SSDFMM-LVQ-35
SSDFMM-LVQ-36
SSDFMM-LVQ-38
SSDFMM-LVQ-40
SSDFMM-LVQ-45
SSDFMM-LVQ-50
SSDFMM-LVQ-60
SSDFMM-LVQ-70
SSDFMM-LVQ-80
OUTPUT
FREQUENCY
20 MHz
22 MHz
24 MHz
25 MHz
26 MHz
28 MHz
30 MHz
32 MHz
34 MHz
35 MHz
36 MHz
38 MHz
40 MHz
45 MHz
50 MHz
60 MHz
70 MHz
80 MHz
Gull Wing Lead
SSDFMM-LVQ-9
SSDFMM-LVQ-10
SSDFMM-LVQ-11
SSDFMM-LVQ-12
SSDFMM-LVQ-13
SSDFMM-LVQ-14
SSDFMM-LVQ-15
SSDFMM-LVQ-16
J Lead
SSDFMM-LVQ-17
SSDFMM-LVQ-18
SSDFMM-LVQ-19
Special modules can be readily manufactured to provide customer
specified output frequencies for specific applications.
Tucked Lead
Catalog No. C/022897R
模拟与混合信号
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
