Datasheet MRF897 Datasheet (Motorola)

Page 1

MRF897MOTOROLA RF DEVICE DATA

The RF Line

    

Designed for 24 Volt UHF large–signal, common emitter, class–AB linear amplifier applications in industrial and commercial FM/AM equipment operating in the range 800–970 MHz.

• Specified 24 Volt, 900 MHz Characteristics

Output Power = 30 Watts Minimum Gain = 10 dB @ 900 MHz, class–AB Minimum Efficiency = 30% @ 900 MHz, 30 Watts (PEP) Maximum Intermodulation Distortion –30 dBc @ 30 Watts (PEP)

• Characterized with Series Equivalent Large–Signal Parameters from 800

to 960 MHz

• Silicon Nitride Passivated

• 100% Tested for Load Mismatch Stress at all Phase Angles with 5:1 VSWR

@ 26 Vdc, and Rated Output Power

• Gold Metalized, Emitter Ballasted for Long Life and Resistance to Metal–

Migration

• Circuit board photomaster available upon request by contacting

RF Tactical Marketing in Phoenix, AZ.

MAXIMUM RATINGS

Rating Symbol Value Unit

Collector–Emitter Voltage V

CEO

30 Vdc

Collector–Emitter Voltage V

CES

60 Vdc

Emitter–Base Voltage V

EBO

4.0 Vdc

Collector–Current — Continuous I

4.0 Adc

Total Device Dissipation @ TC = 25°C

Derate above 25°C

105

0.60

Watts

W/°C

Storage Temperature Range T

stg

–65 to +150 °C

THERMAL CHARACTERISTICS

Characteristic Symbol Max Unit

Thermal Resistance, Junction to Case R

θJC

1.67 °C/W

ELECTRICAL CHARACTERISTICS (T

= 25°C unless otherwise noted.)

Characteristic

Symbol Min Typ Max Unit

OFF CHARACTERISTICS

Collector–Emitter Breakdown Voltage (IC = 50 mAdc, IB = 0) V

(BR)CEO

30 33 — Vdc

Collector–Emitter Breakdown Voltage (IC = 50 mAdc, VBE = 0) V

(BR)CES

60 80 — Vdc

Emitter–Base Breakdown Voltage (IE = 5 mAdc, IC = 0) V

(BR)EBO

4.0 4.7 — Vdc

Collector Cutoff Current (VCE = 30 Vdc, VBE = 0) I

CES

— — 10.0 mAdc

ON CHARACTERISTICS

DC Current Gain (ICE = 1.0 Adc, VCE = 5 Vdc) h

30 80 120 —

DYNAMIC CHARACTERISTICS

Output Capacitance (VCB = 24 Vdc, IE = 0, f = 1.0 MHz) C

14 21 28 pF

(continued)

Order this document

by MRF897/D



SEMICONDUCTOR TECHNICAL DATA



30 W, 900 MHz

RF POWER TRANSISTOR NPN SILICON

CASE 395B–01, STYLE 1

 Motorola, Inc. 1994

REV 6

Page 2

MRF897 2

MOTOROLA RF DEVICE DATA

ELECTRICAL CHARACTERISTICS — continued (T

= 25°C unless otherwise noted.)

Characteristic

Symbol Min Typ Max Unit

FUNCTIONAL CHARACTERISTICS

Common–Emitter Amplifier Power Gain

(VCC = 24 Vdc, P

out

= 30 Watts (PEP), Icq = 125 mA, f1 = 900 MHz,

f2 = 900.1 MHz)

10.0 12.0 — dB

Collector Efficiency

(VCC = 24 Vdc, P

out

= 30 Watts (PEP), Icq = 125 mA, f1 = 900 MHz,

f2 = 900.1 MHz)

η 35 38 — %

Intermodulation Distortion

(VCC = 24 Vdc, P

out

= 30 Watts (PEP), Icq = 125 mA, f1 = 900 MHz,

f2 = 900.1 MHz)

IMD — –37 –30 dBc

Output Mismatch Stress

(VCC = 26 Vdc, P

out

= 30 Watts (PEP), Icq = 125 mA, f1 = 900 MHz,

f2 = 900.1 MHz, Load VSWR = 5:1 (all phase angles))

ψ No Degradation in Output Power

Before and After Test

Figure 1. MRF897 Broadband Test Circuit

B1, B2, B3, B4 — Ferrite Bead, Fair Rite #2743019447 C1 — 0.8–8.0 pF Trimmer Capacitor, Johanson C2, C3, C23, C24 — 43 pF, 100 mil, ATC Chip Capacitor C4, C5, C18, C19, C21, C22 — 820 pF, 100 mil, Chip Capacitor, Kemet C6, C7, C11, C12 — 10 µF, Lytic Capacitor, Panasonic C8, C9, C16, C17 — 100 pF, 100 mil, Chip Capacitor, Murata Erie C10 — 13 pF, 50 mil, ATC Chip Capacitor C13, C14 — 250 µF Lytic Capacitor, Mallory C15 — 1.1 pF, 50 mil, ATC Chip Capacitor C20 — 6.8 pF, 100 mil, ATC Chip Capacitor L1, L2, L3, L4, L5, L6 — 5 Turns 20 AWG, IDIA 0.126″ choke

N1, N2 — Type N Flange Mount, Omni Spectra 3052–1648–10 Q1 — Bias Transistor BD136 PNP R1, R12 — 39 Ohm, 2.0 W R3, R4, R5, R6 — 4.0 x 39 Ohm, 1/8 W, Chips in Parallel,

R3, R4, R5, R6 — Rohm 390–J

TL1–TL11 — See Photomaster Balun1, Balun2, Coax 1, Coax 2 — 2.20″ 50 Ohm, 0.088″ o.d.

Balun1, Balun2, Coax 1, Coax 2 — semi–rigid coax, Micro Coax Balun1, Balun2, Coax 1, Coax 2 — UT–85–M17

Board — 1/32″ Glass Teflon, Arlon GX–0300–55–22, εr = 2.55

COAX 1

BALUN 1

INPUT

OUTPUT

BALUN 2

COAX 2

TL2

TL1

TL4

TL3

TL5

TL6

C10

D.U.T.

C11 C13 C18

+ +

L5 R5

C21

TL9

C16

TL7

TL8

C15 C20

C23

C24

TL11

TL10

C22

C17

C12 C14 C19

+ +

Page 3

MRF897MOTOROLA RF DEVICE DATA

, EFFICIENCY (%)

Figure 2. Output Power versus Input Power Figure 3. Output Power versus Frequency

Figure 4. Output Power versus Supply Voltage

Figure 5. Intermodulation versus Output Power

2.5 3.0

0.0 1.00.5 1.5 2.0

45 40 35 30

25 20

f = 800 MHz

900 MHz

960 MHz

VCC = 24 Vdc Icq = 125 mA

PIN, INPUT POWER (WATTS)

45 40 35 30

25 20

1.5 W

1 W

0.5 W

VCC = 24 Vdc Icq = 125 mA

f, FREQUENCY (MHz)

2 W

2.5 W

PIN = 3 W

800 820 840 880 920 960

860

900 940

45 40 35 30

25 20

1.5 W

0.5 W

VCC, SUPPLY VOLTAGE (VOLTS)

PIN = 2.5 W

14 16 18 22 26 30

24 28

Figure 6. Power Gain versus Output Power

Figure 7. Broadband Test Fixture Performance

0.01 10.1

14.0

13.5

13.0

12.5

12.0

9.0

10.5

11.5

11.0

10.0

9.5

Po, OUTPUT POWER, (WATTS)

300 mA

250 mA 200 mA

125 mA

Icq = 400 mA

G , POWER GAIN (dB)

890 900

840 850 860 870 880

OUT

= 30 W (PEP) VCC = 24 Vdc Icq = 125 mA

f, FREQUENCY (MHz)

G , POWER GAIN (dB)

1.0 1.5 2.0

INPUT VSWR

, OUTPUT POWER (WATTS)

INPUT VSWR

f = 900 MHz VCC = 24 Vdc Icq = 125 mA

f = 900 MHz Icq = 125 mA

–25 –30 –35 –40

–55

–70

–65

–60

–45 –50

5TH

Po, OUTPUT POWER (WATTS–PEP)

IMD, INTERMODULATION DISTORTION (dBc)

3RD ORDER

0 5 10 20 30

f1 = 900 MHz f2 = 900.1 MHz VCC = 24 Vdc Icq = 125 mA

7TH

, OUTPUT POWER (WATTS)

Page 4

MRF897 4

MOTOROLA RF DEVICE DATA

Figure 8. Series Equivalent Input/Output Impedances

f = 800 MHz

960

850

900

ZOL*

Zo = 10 Ohms

Po = 300 W (PEP), VCC = 24 V

f = 800 MHz

850

900

960

NOTE: Zin & ZOL* are given from base–to–base and collector–to–collector respectively.

ZOL* = Conjugate of the optimum load impedance

ZOL* = into which the device operates at a given ZOL* = output power, voltage and frequency.

MHz

Ohms

ZOL*

Ohms

800 1.0 + j10.3 5.9 – j0.4 850 1.5 + j10.5 5.7 + j2.6 900 1.8 + j11.0 5.9 + j3.4 960 2.2 + j11.4 6.2 + j4.4

Page 5

MRF897MOTOROLA RF DEVICE DATA

PACKAGE DIMENSIONS

CASE 395B–01

ISSUE A

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.

STYLE 1:

PIN 1. BASE

2. BASE

3. COLLECTOR

4. COLLECTOR

5. EMITTER

–A–

–B–

1 2

3 4

2 PLQ

DIM MIN MAX MIN MAX

MILLIMETERSINCHES

A 0.739 0.750 18.77 19.05 B 0.240 0.260 6.10 6.60 C 0.165 0.198 4.19 5.03 D 0.055 0.065 1.40 1.65 E 0.055 0.070 1.40 1.78

G 0.110 0.130 2.79 3.30

H 0.079 0.091 2.01 2.31 J 0.003 0.005 0.08 0.13 K 0.180 0.220 4.57 5.59 N 0.315 0.330 8.00 8.38

Q 0.125 0.135 3.18 3.42

U 0.560 BSC 14.22 BSC

0.51 (0.020) B

SEATING PLANE

–T–

Page 6

MRF897 6

MOTOROLA RF DEVICE DATA

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty , representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters can and do vary in different applications. All operating parameters, including “T ypicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.

Literature Distribution Centers:

USA: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. EUROPE: Motorola Ltd.; European Literature Centre; 88 T anners Drive, Blakelands, Milton Keynes, MK14 5BP, England. JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan. ASIA PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong.

MRF897/D

*MRF897/D*

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