NOISE AMPLIFIER. MRFIC1808 Datasheet

MRFIC1808 AMPLIFIER. Datasheet pdf. Equivalent

Part MRFIC1808
Description 1.9 GHz GaAs LOW NOISE AMPLIFIER
Feature ( DataSheet : www.DataSheet4U.com ) MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by .
Manufacture Motorola
Datasheet
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MRFIC1808
( DataSheet : www.DataSheet4U.com )
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
The MRFIC Line
1.9 GHz GaAs
Low Noise Amplifier
Designed primarily for use in wireless Personal Communication Systems
(PCS) applications such as Digital European Cordless Telephone (DECT),
Japan’s Personal Handy System (PHS) and the emerging North American
systems as a preamp for discrete or integrated downmixers. The MRFIC1808
is a two–stage low noise amplifier in a low–cost SO–8 package. The amplifier
can be matched to optimize gain or noise figure with simple off–chip input
matching. The design employs a novel stacked MESFET design which reuses
bias current for the highest gain at minimal current. A CMOS compatible
RECEIVE ENABLE pin allows for very low standby current while the system is
in transmit mode.
Usable Frequency Range = 1.7 to 2.1 GHz
19 dB Typ Gain
1.6 dB Typ Noise Figure
Simple Off–chip Matching for Maximum Gain/Noise Figure Flexi-
bility
High Reverse Isolation = –34 dB (Typ)
Low Power Consumption = 13 mW (Typ)
Single Bias Supply = 2.7 to 4.5 Volts
Low Standby Current = 8 µA (Typ)
Low Cost Surface Mount Plastic Package
Order MRFIC1808R2 forTape and Reel.
R2 Suffix = 2,500 Units per 16 mm, 13 inch Reel.
Device Marking = M1808
Order this document
by MRFIC1808/D
MRFIC1808
1.9 GHz GaAs
LOW NOISE
AMPLIFIER
CASE 751–05
(SO–8)
VDD1 1
N/C 2
8 RX ENABLE
7 GND
RF OUT 3
6 RF IN
LNA CAP 4
5 GND
Pin Connections and Functional Block Diagram
REV 1
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MRFIC1808
1



MRFIC1808
MAXIMUM RATINGS (TA = 25°C unless otherwise noted)
Rating
Supply Voltage
RF Input Power
Enable Voltage
Storage Temperature Range
Operating Ambient Temperature
RECOMMENDED OPERATING RANGES
Parameter
RF Frequency
Supply Voltage
RX Enable Voltage, ON
RX Enable Voltage, OFF
Symbol
VDD
PRF
RX ENABLE
Tstg
TA
Limit
5.5
3
5.5
– 65 to +150
– 30 to +85
Symbol
fRF
VDD
RX ENABLE
RX ENABLE
Value
1.7 to 2.1
2.7 to 4.5
2.7 to VDD
0 to 0.2
Unit
Vdc
dBm
Vdc
°C
°C
Unit
GHz
Vdc
Vdc
Vdc
ELECTRICAL CHARACTERISTICS (VDD = 3 V, TA = 25°C, RF = 1.9 GHz, RX ENABLE = 3 V, Tested in Circuit Shown in Figure 1)
Characteristic
Min Typ Max Unit
RF Gain
16.0 19
— dB
SSB Noise Figure
— 1.6 — dB
RF Output 3rd Order Intercept Point
— 13 — dBm
Output 1 dB Gain Compression
– 3.0
1
— dBm
Reverse Isolation (s12)
Input Return Loss
— –34 — dB
— –12 — dB
Output Return Loss
— –15 — dB
Supply Current RX Mode
— 4.2 6.5 mA
Supply Current Standby Mode (RX ENABLE = 0 V)
— 8 25 m A
VDD
C4
1
2
RF OUT
3
4
C1
8 RX ENABLE
7
L1 C3
6
C2
RF IN
5
C1 2 pF
C2 1.8 pF
C3, C4 22 pF
L1 5.6 nH
Figure 1. Applications Circuit Configuration
MRFIC1808
2
MOTOROLA RF DEVICE DATA





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