Motorola MRFIC1801 Datasheet
SEMICONDUCTOR TECHNICAL DATA
The MRFIC Line
Designed primarily for use in DECT, Japan Personal Handy System (PHS),
other wireless Personal Communication Systems (PCS) applications, and
2.4 GHz ISM band applications. The MRFIC1801 is a single pole, double throw
reflective antenna switch featuring low insertion loss and high power handling
capability in a low-cost SOIC-8 package. The integrated circuit requires no
off-chip matching and provides for easy control circuit interface. The high power
handling capability allows application in higher power wireless systems than
traditional GaAs antenna switches.
Together with the rest of the MRFIC180X series, this GaAs IC family offers
the complete transmit and receive functions, less LO and filters, needed for a
typical 1.8 GHz cordless telephone.
• Usable Frequency Range 1.5 to 2.5 GHz
• High 1.0 dB Compression Point = 29 dBm (Typ)
• Low Transmit Insertion Loss = 0.75 dB (Typ)
• High Transmit to Receive Isolation = 22 dB (Typ)
• Single Control Pin for Easy Switching Signal Interface
• Low Current Drain = 300 µA (Typ) in TX, 45 µA (Typ) in RX
• Low Cost Surface Mount Plastic Package
• Order MRFIC1801R2 for Tape and Reel.
R2 Suffix = 2,500 Units per 12 mm, 13 inch Reel.
• Device Marking = M1801
Order this document
by MRFIC1801/D
1.8 GHz
TRANSMIT/RECEIVE
ANTENNA SWITCH
GaAs MONOLITHIC
INTEGRATED CIRCUIT
CASE 751–05
(SO-8)
V
DD
100 pF
4321
5678
39 pF
RX
V
C
ANTENNA
39 pF
100 pF
V
SS
PIN 1
39 pF
TX
REV 2
Motorola, Inc. 1997
Functional Block Diagram and Pin Assignment
MRFIC1801MOTOROLA RF DEVICE DATA
1
MAXIMUM RATINGS (T
= 25°C unless otherwise noted)
A
Ratings Symbol Value Unit
Supply Voltage V
Supply Voltage Dif ference VDD – V
RF Input Power P
Switch Control Voltage V
Storage Temperature Range T
Operating Ambient Temperature T
DD
in
C
stg
A
SS
10 Vdc
8 Vdc
33 dBm
VDD +1, VSS –1 Vdc
– 65 to +150 °C
– 30 to + 85 °C
RECOMMENDED OPERATING CONDITIONS
Parameter
Supply Voltage V
Supply Voltage Dif ference VDD – V
Switch Control Voltage V
Operating Frequency f 1.5 to 2.5 GHz
Symbol Value Unit
DD
SS
C
2.7 to 5.5 Vdc
5.5 Vdc
VDD to V
SS
Vdc
ELECTRICAL CHARACTERISTICS (V
Characteristic
Antenna to Receive Insertion Loss (RX Mode, PIN = 0 dBm) — 0.8 1 dB
Transmit to Antenna Insertion Loss (TX Mode, PIN = +27 dBm) — 0.6 1 dB
Transmit to Receive Isolation in TX Mode (PIN = +27 dBm) — 22 — dB
Antenna to Transmit Isolation in RX Mode (PIN = 0 dBm) — 18 — dB
Input Return Loss, all ports — 15 — dB
Transmit to Antenna Input 1.0 dB Compression — 29 — dBm
Leakage Current (RX Mode) — 45 — µA
Total Supply Current (TX Mode) — 300 — µA
– VSS = 5.5 V, TA = 25°C, f = 1.9 GHz)
DD
Min Typ Max Unit
EVALUATION BOARDS
Evaluation boards are available for RF Monolithic Integrated 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 contact your
local Motorola Distributor or Sales Office.
APPLICATIONS INFORMATION
The MRFIC1801 is a SPDT switch. A series–shunt pair of FET s are used in each path for improved isolation. The power handling
capability of the MRFIC1801 is determined by the difference between VDD and VSS. Typical operating conditions are VDD = 3.0
V and VSS = –2.5 V, but a negative VSS is not required. VSS can be grounded.
MRFIC1801
2
Mode
RX V
TX V
T able 1. Logic Table
V
C
SS
DD
MOTOROLA RF DEVICE DATA
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