MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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by MRFIC1814/D
Advance Information
The MRFIC Line
1.9 GHz GaAs Downconverter
Designed primarily for use in wireless Personal Communication Systems
(PCS) applications such as Digital European Cordless Telephone (DECT),
Japan鈥檚 Personal Handy System (PHS), and the emerging North American
systems. The MRFIC1814 includes a low noise amplifier and downmixer in a
low-cost TSSOP鈥?6 package. The integrated circuit requires minimal off-chip
matching while allowing for the maximum in flexibility and efficiency. The mixer
is optimized for low鈥搒ide injection and offers reasonable intercept point as well
as high efficiency with 9 dB of conversion gain. Image filtering is implemented
off-chip to allow maximum flexibility. CMOS compatible ENABLE pins allow
standby operation where the current drain is less than 0.1 mA.
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.
鈥?/div>
Usable Frequency Range = 1.8 to 2.0 GHz
鈥?/div>
17 dB Typ Gain, 2.5 dB Typ Noise Figure LNA
鈥?/div>
8 dB Typ Gain, 10 dB Typ Noise Figure Mixer
鈥?/div>
鈥?.5 dBm Typ Mixer Input Intercept Point
鈥?/div>
Simple LO/IF Off-chip Matching for Maximum Flexibility
鈥?/div>
Low Power Consumption = 39 mW (Typ)
鈥?/div>
Single Bias Supply = 2.7 to 4.5 Volts
鈥?/div>
Low LO Power Requirement = 鈥?5 dBm (Typ)
鈥?/div>
Low Cost Surface Mount Plastic Package
鈥?/div>
Order MRFIC1814R2 for Tape and Reel.
R2 Suffix = 2,500 Units per 16 mm, 13 inch Reel.
鈥?/div>
Device Marking = M1814
MRFIC1814
1.8 GHz LOW NOISE
AMPLIFIER AND
DOWNMIXER
CASE 948C鈥?3
(TSSOP鈥?6)
MIXER ENABLE
N/C
LO INPUT
VDD2
LNA OUT
LNA CAP
N/C
LNA ENABLE
1
2
3
4
MIXER
5
6
7
8
LNA
16
15
14
13
12
11
10
9
IF OUT/VDD3
N/C
MIXER IN
GND
VDD1
GND
GND
LNA IN
Pin Connections and Functional Block Diagram
MOTOROLA RF
漏
Motorola, Inc. 1997
DEVICE DATA
MRFIC1814
1
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