Motorola MRFIC1803 Datasheet

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SEMICONDUCTOR TECHNICAL DATA

The MRFIC Line

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Designed primarily for use in DECT , Japan’ s Personal Handy System (PHS),
and other wireless Personal Communication Systems (PCS) applications at 1.8
GHz, but also applicable to Industrial, Scientific and Medical (ISM) applications
at 2.5 GHz. The MRFIC1803 is a complete active upmixer, exciter amplifier , and
LO buffer amplifier in a low-cost SOIC-16 package. The low power consumption
design includes a single balanced active mixer, CMOS compatible receive and
transmit enable inputs, a buffer/exciter amplifier, and a buffered LO output
capable of driving the MRFIC1804 downconverter. IF, LO and RF ports are
matched to 50 Ω and no off-chip baluns are required. With both TX and RX
enable pins low, the device is in standby mode and draws less than 0.3 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.

• 10 dB IF to RF Conversion Gain

• Usable Frequency Range = 1.7 to 2.5 GHz

• Low Power Consumption = 80 mW (Typ)

• Single Bias Supply = 2.7 to 3.3 V

• No External Baluns Required

• IF, LO and RF Ports Matched to 50 Ω

• Low LO Power Requirement = –10 dBm (Typ)

• Low Cost Surface Mount Plastic Package

• Order MRFIC1803R2 for Tape and Reel.

R2 Suffix = 2,500 Units per 16 mm, 13 inch Reel.

• Device Marking = M1803

Order this document

by MRFIC1803/D

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1.8 GHz UPMIXER,

EXCITER AND LO AMP

GaAs MONOLITHIC

INTEGRATED CIRCUIT

CASE 751B-05

(SO–16)

MAXIMUM RATINGS

(TA = 25°C unless otherwise noted)

Ratings Symbol Value Unit

Supply Voltage V
IF Input Power P
LO Input Power P
Transmit and Receive Enable V oltage
Storage Temperature Range T
Operating Ambient Temperature T

1GND

GND

LO OUT

GND
GND

RF OUT

GND

V

DD

LO BUFFER

2

AND SWITCH

3
4

EXCITER

5
6

ACTIVE

7

BALANCED
MIXER

8

TX EN, RX EN 5.5

DD

IF

LO

stg

A

16
15
14
13
12
11
10

9

5.5 Vdc
3 dBm
3 dBm

Vdc

– 65 to +150 °C

– 30 to + 85 °C

RX EN

GND
LO IN
GND
GND

IF IN

GND
TX EN

REV 3

 Motorola, Inc. 1997

Pin Connections and Functional Block Diagram

MRFIC1803MOTOROLA RF DEVICE DATA

1

RECOMMENDED OPERATING RANGES

Parameter

LO Input Frequency f
LO Input Power P
IF Input Frequency f
RF Output Frequency f
Transmit and Receive Enable V oltage TX EN, RX EN 2.7 to V
Supply Voltage V

Symbol Value Unit

LO

LO
IF

RF

DD

1.5 to 2.4 GHz

70 to 350 MHz

1.7 to 2.5 GHz

2.7 to 5 Vdc

–10 dBm

DD

Vdc

ELECTRICAL CHARACTERISTICS (V

TX EN = 3.0 V, RX EN = 0 V, unless otherwise noted)

Characteristic

IF to RF Conversion Gain 8 10 — dB
RF Output 1 dB Compression — –2 — dBm
RF Output 3rd Order Intercept — 9 — dBm
LO Feed Through to RF Port — –19 — dBm
Auxiliary LO Output Power (TX EN = 0 V, RX EN = 3 Vdc) — –4 — dBm
Supply Current, TX Mode — 28 50 mA
Supply Current, RX Mode (TX EN = 0 V, RX EN = 3 Vdc) — 3 — mA
Standby Mode Current (TX EN = 0 V, RX EN = 0 Vdc) — 0.1 0.3 mA

= 3 V, TA = 25°C, LO = 1790 MHz @ –10 dBm, IF = 110 MHz @ –15 dBm,

DD

Min Typ Max Unit

RX EN LO IN IF IN TX EN

C1

15

1416

10 9111213

MRFIC1803
2

1

2

345678

LO OUT RF OUT V

C1 470 pF
C2 100 pF
C3 0.1 µF (optional)

DD

Figure 1. Applications Circuit Configuration

C2
C3

MOTOROLA RF DEVICE DATA