MRFIC2001 データシートの表示（PDF） - Motorola => Freescale
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MRFIC2001 Datasheet PDF : 6 Pages
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Matching the LO port to 50 ohms can be done several
ways. The recommended approach is a series inductor as
close to the IC as possible. The inductor value is small
enough (~8 –15 nH depending on LO frequency) to be
printed on the board. A DC block is required and should not
be placed between the inductor and IC since this will prevent
the inductor from being close enough to the IC to provide a
good match.
The IF port is an open collector resulting in a very high out-
put impedance. For optimum linearity (IP3), the IF port
should be loaded with a 1000 ohm load-line. Since the output
requires a bias inductor and blocking capacitor, the IF filter
impedance can be transformed to 1000 ohms with these two
elements. If a low output VSWR is desired (to reduce IF filter
ripple), a 2.0 – 4.0 K ohm resistor can be placed in parallel
with the bias inductor. This will reduce the conversion gain by
1.0 – 2.0 dB.
The RF port is nearly 55 ohms resistive in series with a
small amount of capacitive reactance, which results in a
12–13 dB return loss. If a higher return loss is desired, a
3.0 – 4.0 nH series inductor printed on the board as close to
the IC as possible will improve it to over 20 dB. A DC block is
also required.
Supply decoupling must be done as close to the IC as pos-
sible. A 1000 pF capacitor is recommended. An additional
100 pF capacitor and an RF choke are recommended to
keep the LO signal off the supply line.
Enabling/Disabling the MRFIC2001 can be done with its
TTL/CMOS compatible Enable pin. The trip point is between
1.0 and 2.0 volts.
EVALUATION BOARDS
Evaluation boards are available for RF Monolithic Inte-
grated Circuits by adding a “TF” suffix to the device type.
For a complete list of currently available boards and ones
in development for newly introduced product, please con-
tact your local Motorola Distributor or Sales Office.
PACKAGE DIMENSIONS
A
D
8
E
1
5
H
4
0.25 M B M
B
e
C
h X 45 _
q
A
SEATING
PLANE
0.10
A1
B
0.25 M C B S A S
C
L
CASE 751– 05
ISSUE S
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. DIMENSIONS ARE IN MILLIMETERS.
3. DIMENSION D AND E DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS
OF THE B DIMENSION AT MAXIMUM MATERIAL
CONDITION.
MILLIMETERS
DIM MIN MAX
A 1.35 1.75
A1 0.10 0.25
B 0.35 0.49
C 0.18 0.25
D 4.80 5.00
E 3.80 4.00
e
1.27 BSC
H 5.80 6.20
h 0.25 0.50
L 0.40 1.25
q
0_ 7_
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MRFIC2001
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MOTOROLA RF DEVMIRCFEICD2A0T0A1/D
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