Motorola MRFIC1818 Datasheet

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SEMICONDUCTOR TECHNICAL DATA

The MRFIC Line

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by MRFIC1818/D

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Designed specifically for application in Pan European digital 1.0 watt DCS1800
handheld radios, the MRFIC1818 is specified for 33 dBm output power with power
gain over 30 dB from a 4.8 volt supply . With minor tuning changes, the MRFIC1818
can be used for PCS1900 as well as PCS CDMA. To achieve this superior
performance, Motorola’s planar GaAs MESFET process is employed. The device
is packaged in the PFP–16 Power Flat Package which gives excellent thermal
and electrical performance through a solderable backside contact while allowing
the convenience and cost benefits of reflow soldering.

• Minimum Output Power Capabilities

33 dBm @ 4.8 Volts
32 dBm @ 4.0 Volts

• Specified 4.8 Volt Characteristics

RF Input Power = 3.0 dBm
RF Output Power = 33 dBm
Minimum PAE = 35%

• Low Current required from Negative Supply – 2 mA max

• Guaranteed Stability and Ruggedness

• Order MRFIC1818R2 for Tape and Reel.

R2 Suffix = 1,500 Units per 16 mm, 13 inch Reel.

• Device Marking = M1818

ABSOLUTE MAXIMUM RATINGS

DC Positive Supply Voltage V
DC Negative Supply Voltage V
RF Input Power P
RF Output Power P
Operating Case Temperature Range T
Storage Temperature Range T
Thermal Resistance, Junction to Case R

(TA = 25°C, ZO = 50 Ω, unless otherwise noted)

Rating

Symbol Value Unit

D1, 2, 3

stg

θJC

SS

in

out

C

1700–1900 MHz MMIC

DCS1800/PCS1900

INTEGRATED POWER AMPLIFIER

GaAs MONOLITHIC

INTEGRATED CIRCUIT

CASE 978–02

(PFP–16)

7.5 Vdc
–5 Vdc
10 dBm
36 dBm

–35 to +85 °C

–55 to +150 °C

10 °C/W

REV 2

 Motorola, Inc. 1997

GND

V

D2

V

D2

V

D1

N/C

GND

RF IN

N/C

9

10

11

12

13

14

15

16

8

7
6

5

4

3
2

1

Pin Connections and Functional Block Diagram

V

G

V

D3

RF OUT

RF OUT

RF OUT

RF OUT

N/C

GND

MRFIC1818MOTOROLA RF DEVICE DATA

1

RECOMMENDED OPERATING RANGES

Parameter Symbol Value Unit

Supply Voltage V
Gate Voltage V
RF Frequency Range f
RF Input Power P

D1, 2, 3

SS

RF

RF

2.7 to 6 Vdc

–3.5 to –4.5 Vdc

1700 to 1900 MHz

0 to 6 dBm

ELECTRICAL CHARACTERISTICS (V

= 4.8 V, VSS = –4 V, Pin = 3 dBm, Peak Measurement at 12.5% Duty Cycle, 4.6 ms

D1, 2, 3

Period, TA = 25°C unless otherwise noted. Measured in Reference Circuit Shown in Figure 1.)

Characteristic

Min Typ Max Unit

Frequency Range 1710 — 1785 MHz
Output Power 33 34.5 — dBm
Power Added Efficiency 35 42 — %
Output Power (Tuned for PCS Band, 1850 to 1910 MHz) — 34.5 — dBm
Power Added Efficiency (Tuned for PCS Band, 1850 to 1910 MHz) — 42 — %
Input VSWR — 2:1 — VSWR
Harmonic Output (2nd and 3rd) — –35 –30 dBc
Output Power at Low voltage (VD1, VD2, VD3= 4.0 V) 32 33 — dBm
Output Power, Isolation (VD1, VD2, VD3 = 0 V) — –40 –35 dBm
Noise Power (In 100 kHz, 1805 to 1880 MHz) — –85 –80 dBm
Stability – Spurious Output (Pin = 5 dBm, P

VSWR = 6:1 at any Phase Angle, Source VSWR = 3:1, at any Phase Angle)

Load Mismatch stress (P

any Phase Angle)

= 33 dBm, Load VSWR = 10:1 at

out

(1)

= 0 to 33 dBm, Load

out

(1)

— — –60 dBc

No Degradation in Output Power after Returning to

Standard Conditions
3 dB VDD Bandwidth — 2 — MHz
Negative Supply Current — 0.7 2 mA

(1) Adjust V

(0 to 4.8 V) for specified P

D1, 2, 3

; Duty Cycle = 12.5%, Period = 4.6 ms.

out

V

V

D2

D1

C9 C8

C7 C6

RF IN

L2

C1 6.8 nF
C2, C6, C8 22 pF, NPO/COG
C3, C7, C9 47 nF
C4 27 pF , NPO/COG

T2

NC

NC

9

10

11
12
13

14
15
16

T4

T3

C5 3.9 pF, NPO/COG
L1 18 nH, Coilcraft
L2 1.8 nH, Toko 2012
R1, R2 = 2.7 KΩ

8
7
6
5
4
3
2
1

C10

C10 0.5 pF

NOTE: For PCS/DCS1900 applications, the following components are used.

C5 = 2.7 pF, 0603 NPO/COG
L2 = 1.5 nH, Toko 2012
T3 = 1 mm 50 Ω Microstrip Line

Figure 1. Reference Circuit Configuration

V

L1

D3

R1

V

SS

R2

C1

C3C2

T1

C4

RF OUT

NC

C5

T1 1.4 mm 25 Ω Microstrip Line
T2 5 mm 50 Ω Microstrip Line
T3 4 mm 50 Ω Microstrip Line
T4 0.5 mm 50 Ω Microstrip Line
Board Material: Glass/Epoxy,
Thickness = 0.5 mm

ε

= 4.45,

r

MRFIC1818
2

MOTOROLA RF DEVICE DATA

0 V
0 V

C13

CR1

C15

C14

3.0 V

3.0 V

1

2

3

4

5

6

7

VRAMP

U2

V

reg

IDLE

R4

RF IN

D

5

6

7

8

R3

V

BAT

C18

14

13

C16

12

C17

11

10

9

8

C12

C19

C10

C9

L2

T2

T4

T3

R5

NC

NC

C11

9

10

11

12

13

14

15

16

IN

G

4

D

S

3

D

S

2

D

1

Q1

–4.0 V

R2R1

VG TUNE

8

L1

7

6

5

4

3

2

1

T1

NC

C1

C3C2

C4

RF
OUT

C6

C1 6.8 nF
C2, C9, C10 22 pF, 0603 NPO/COG
C3, C11 47 nF
C4 27 pF, 0603 NPO/COG

C14, C15 1 µF
C18 1 µF
CR1 MMBD701L T1

L1 18 nH, Coilcraft or 20 mm
C6 3.9 pF, 0603 NPO/COG
C12 220 nF

L2 1.8 nH, Toko 2012
C13, C16, C17, C19 1 µF

Q1 MMSF4N01HD

R1, R2 2.7 kΩ

NOTE: For PCS/DCS1900 applications, the following

component values are changed.

C6 = 2.7 pF, 0603 NPO/COG
L2 = 1.5 nH, Toko 2012
T3 = 1 mm 50 Ω Microstrip Line

Figure 2. DCS1800 Applications Circuit Configuration

50 Ω Microstrip Line

or 5 mm 50 Ω Line

U1

R3, R4 100 Ω
R5 470 Ω
T1 2 mm 25 Ω Microstrip Line
T2 5 mm 50 Ω Microstrip Line
T3 8 mm 40 Ω Microstrip Line
T4 1 mm 40 Ω Microstrip Line
U1 MRFIC1818
U2 MC33169 (–4 V Version)
Board Material: Glass/Epoxy,
Thickness = 0.5 mm

ε

= 4.45,

r

MRFIC1818MOTOROLA RF DEVICE DATA

3