pa 150 amplifier - rf technology americas inc pa150.pdf · 2007. 6. 29. · rf technology pa150...

Eclipse Series

RF Technology [email protected]

February, 2003

PA 150 Amplifier Operation and Maintenance Manual

This manual is produced by RF Technology Pty Ltd

10/8 Leighton Place, Hornsby NSW 2077 Australia. Copyright © 1997 RF Technology.

RF Technology PA150 Page 2

CONTENTS CONTENTS Contents 1 Operating Instructions 3 1 1.1 Front Panel Indicators 3

1.2 Internal Adjustments 3 1.3 Output Power 3 1.4 RF Level Detector 3

2 Circuit Description 4

2.1 Amplifiers 4 2.2 Power Splitter/Combiners 5 2.3 Directional Coupler 5 2.4 Low pass Filter 5 2.5 Power Control Circuits 5 2.6 RF Output Indicator 5 2.7 Over Temperature Protection 6

3 Alignment Procedure 6 4 Specifications 7

4.1 Description 7 4.2 Physical Configuration 7 4.3 Front Indicators and Test Points 7

4.3.1 Indicators 7 4.3.2 Test Points 8

5 Electrical Specifications 8

5.1 Power Requirements 8 5.2 Frequency Range 8 5.3 Nominal Antenna Impedance 8 5.4 Output Power 8 5.5 Transmit Duty Cycle 8 5.6 Spurious and Harmonics 8 5.7 Maximum Heatsink Temperature 9 5.8 ALC Output 9 5.9 Mis-Match Protection 9

6 Conectors 9 6.1 Antenna Connector 9

6.2 Power and I/O Connector 9 6.3 Test Connector 9

7 Appendix A Block Diagram 10 Schematic Diagram Board Layout 11 Parts List 12


1 OPERATING INSTRUCTIONS 1 Operating Instructions 1.1 Front Panel Indicators

PWR LED The Power LED shows that the dc supply is connected to the transmitter.

RFO LED

The RF Output LED indicates that the amplifier is being driven and that the forward output power is above a preset level. The indication level is set by RV1 which is accessible through the side of the case. (After removing 20 screws)

TEMP LED

The Temperature LED indicates when the amplifier temperature is too high. The power is automatically reduced if the output transistors temperature rises above safe limits.

1.2 Internal Adjustments

All internal adjustments are factory set and should not need readjustment under normal conditions.

1.3 Output Power

The output power is set to the desired level watts by RV2. It determines the threshold of the ALC voltage which is fed back to the transmitter module to regulate the power. The output power of standard amplifiers can be set to any level between 25 and 75 watts. The high power versions with “H” suffix model numbers can be set between 50 and 100 watts.

WARNING

Changes or modifications not expressly approved by RF Technology could void your authority to operate this equipment. Specifications may vary from those

given in this document in accordance with requirements of local authorities. RF Technology

equipment is subject to continual improvement and RF Technology reserve the right to change performance and

specification without further notice.


2 CIRCUIT DESCRIPTION 1.4 RF Level Detector

The RF Detector threshold for the RFO LED on the amplifier front panel is set by RV1. This is normally set at half the rated output power.

PA150 Amplifier I/O Connections 25 Pin Connector

Function/Signal Pins Specification

DC Power +12Vdc - 0Vdc

1,2,14,15 12,13,24,25

+11.4 to 16Vdc

ALC Output 8 Approx 7Vdc decreasing with increasing power or temperature

RF Input BNC Connector

25 Watts max

RF Output N Connector

120 Watts Max

2 Circuit Description

The following descriptions should be read as an aid to understanding the block and schematic diagrams at the rear of this manual.

2.1 Amplifiers

The RF power amplification is provided by one or two transistors, Q4 and Q5. The standard power version uses one transistor (Q4) and the high power version uses two. Each transistor is rated at 75 watts output. The input and output impedances of the transistors are matched to 50O by microstrip matching networks.

WARNING

Ensure that the output power setting complies with the equipment’s licence requirements. Failure to do so may result in penalties being imposed by the

licensing authority.


2 CIRCUIT DESCRIPTION

The amplifiers are broad band and do not have any tuning adjustments. The “A” versions are optimized for the frequency range 136-156 MHz while the “B” versions cover 154-174 MHz. The dc supply is fed to the amplifiers through resistors R21 and R22. This allows the collector current of each amplifier to be measured at the test socket.

2.2 Power Splitter/Combiners

The high power versions use zero degree power splitters and combiners. They consist of lumped element 1/4 wave 70O pi networks and 100O RF resistors (C43-50, L17-20, R19-20). This configuration provides wider bandwidth and better balance than lower cost 90 degree hybrids.

2.3 Directional Coupler

The forward and reverse power components are measured throug a coupled line directional coupler. The output of the coupled line is frequency compensated by R1-4 and C51-52 before being detected by D1 and D3. The voltage output of the detectors is proportional to the forward and reflected power.

2.4 Low Pass Filter

A low pass filter consisting of L12-16 and C39-42 reduces the harmonic components to less than -80dBc. The filter uses a combination of lumped elements and printed microstrips to obtain the required harmonic attenuation.

2.5 Power Control Circuits

The forward and reverse voltages from the directional coupler are amplified and inverted by U2a and U2b. The amplified voltages are combined before connecting to the input of error amplifier U2d. Error amplifier U2d compares the detected voltage with the dc reference voltage from output power trimpot RV2. The amplified difference at the output U2d is supplied to the rear panel system connector for connection to the T150 ALC input.

2.6 RF Output Indicator

The forward power voltage is compared with the pre-set dc reference voltage from RV1 and U2c. The output of U2c is used to turn on the RFO LED and provide an output power logic signal to the test connector.


3 ALIGNMENT PROCEDURE RV1 is normally set so that the RFO LED comes ON at 1-3 db below the normal power output.

2.7 Over Temperature Protection

Thermistor RT1 is mounted to the case of output transistor Q4. If the transistor case temperature rises above 90 degrees C the resistance of RT1 increases and Q2 is turned ON.

This causes the TEMP LED to come on and also reduces the dc reference voltage to the output power error amplifier U2d. The input power will then be reduced by the transmitter ALC circuits and the output transistors are kept within safe operating limits.

3 Alignment Procedure

The following procedures may be used to align the amplifier for optimum performance.

Standard Test Conditions

RF Input Source Power Supply Load T150 Series transmitter 25 watts maximum

13.8 Vdc at 15 A 50O 150 watts VSWR < 1.2:1

Set RFO Level

Step Input Measure Adjust 1 None Set RV1 and R2 Fully counter

clockwise 2 Centre channel

frequency from the T150, 25W max threshold

RF output power at J2

Key transmitter adjust RV2 for desired output

3 As above RFO LED Key transmitter adjust RV1 to where the RFO LED just goes OFF


4 SPECIFICATIONS Set Output Power

Step Input Measure Adjust 4 As above RF output power at

J2 Key transmitter. Adjust RV2 for the desired power

4 Specifications 4.1 Description

The power amplifiers are designed for use with the T150 series transmitters to provide 50-150 watts output. Output power regulation is provided by connecting the output of the directional coupler to the ALC input of the T150. the drive from the transmitter is then automatically adjusted to maintain the required output. The regulated power level can be preset over a wide range from 25 to 150 watts depending on the available driver power. Sensing circuits are provided to protect the output transistors from excessive temperatures. If the output transistor case temperature rises to 90 degrees C, the input drive will be reduced to prevent damage.

4.2 Physical Configuration

The power amplifier is designed to fit in a 19 inch rack mounted frame. The installed height is 4RU (178mm) and the depth is 350mm. The amplifier is 95.25mm or three Elcipse modules wide. An extruded aluminium heat sink with vertical fins is used. The temperature rise is normally less than 30 degrees at 50 watts output.

4.3 Front Indicators and Test Points 4.3.1 Indicators

Power ON - Green LED RF Power Output - Yellow LED Over Temperature - Red LED


5 ELECTRICAL SPECIFICATIONS

4.3.2 Test Points (DB9 Connector)

Forward Power Pin 8 + Gnd (pin 1) Reverse Power Pin 4 + Gnd (pin 1) Collector Current Pin 6, Pin 2 + Vcc 13.2Vdc

5 Electrical Specifications

5.1 Power Requirements

Operating Voltage - 10.5 to 16 Vdc with output power reduced below 12.5 Vdc. Current Drain @ 13.2 Vdc - 10 Amps Max at 50 watts. 100 mA Max standby Polarity - Negative Ground

5.2 Frequency Range

Frequency 50 Watt 100 Watt 136-156MHz PA150A PA150AH 154-174 MHz PA150B PA150BH

5.3 Nominal Antenna Impedance

50O

5.4 Output Power

25 to 100 watts adjustable 5.5 Transmit Duty Cycle

With Free Air Circulation 50 Watts - 100% to 40 deg. C 100 Watts - 50% to 40 deg. C With Fan Module 50-100 Watts - 100% to 50 deg. C

5.6 Spurious and Harmonics Less than 0.25uW


Connectors

5.7 Maximum Heatsink Temperature 90 degrees C.

5.8 ALC Output

The ALC is intended for connection to the T150. It supplies a voltage which decreases with increasing power or temperature.

5.9 Mis-Match Protection

The amplifier is protected from damage when operating into a VSWR of 10/1 at all phase angles.

6 Connectors

6.1 Antenna Connector

Type N Female mounted on the module rear panel 6.2 Power and I/O Connector

25 pin “D” Male mounted on the rear panel 6.3 Test Connector

9 pin “D” Female mounted on the front panel.

12

34

ABCD

43

21

D C B ATi

tle

Num

ber

Rev

isio

nSi

ze A4

Dat

e:9-

Oct

-199

8Sh

eet

ofFi

le:

D:\R

FT_M

aste

rFile

s\..\

9118

-VH

FPA

-blo

ck.s

chDra

wn

By:

-+

+

+8.0

V.R

EF.

POW

ERA

DJU

ST

OU

TPU

T

200

MH

zLP

FD

IREC

TIO

NA

LC

OU

PLER

FWD

.PW

R.

REV

.PW

R.

U2D

ALC

OU

T

+13.

8V

dc

U1

++

INPU

T

+8.0

V.R

EF.

U2C

C39

-C42

L12-

L16

SPLI

TTER

CO

MB

INER

D1,

D3

75W

AM

PLIF

IERS

SET

DET

ECT

LEV

EL

R.F

.DET

.

REF

.R

EG.

OV

ERTE

MP.

DET

ECTO

R

OV

ERTE

MP.

ALC

AM

P.

FWD

.&R

EV.

DET

ECTO

RA

MPS

.

C47

-50,

L19,

L20,

R20

2-20

W

C43

-46,

L17,

L18,

R19

*15

0WV

ERSI

ON

S

*50

-75W

VER

SIO

NS

USE

SIN

GLE

AM

PLIF

ER(Q

4)

50-1

50W

TEM

P.R

.F.D

ET.

tR

T190

DEG

.C.

D2

U2BU2A

RV

1

RV

2 Q2

Q1

Q5

Q4

R.F

.TEC

HN

OLO

GY

PTY

.LTD

.10

/8Le

ight

onPl

ace,

HO

RN

SBY

,AU

STR

ALI

A

BLO

CK

SIG

NA

LFL

OW

DIA

GR

AM

05/9

118

R6

33

12

34

ABCD

43

21

D C B ATi

tle

Num

ber

Rev

ision

Size Orc

adA

Dat

e:3-

Aug

-199

8Sh

eet

ofFi

le:

D:\R

FT_M

aste

rFile

s\..\

9118

-blo

ck.s

chD

raw

nB

y:

AM

PLIF

IER

PCB

ASS

Y11

/911

8

+13.

8

A.L

.C.

0V

PWR

AL

CT

EM

P

LE

DPC

BA

SSY

11/9

106

+13.

8

REV

.PW

R.

FWD

.PW

R.

OV

ERTE

MP.

IcB

IcA

0V RF.

DET

.

INPU

T

OU

TPU

T

13251224112310229218207196185174163152141P5 C

ON

NE

CT

OR

DB

25

J3J1P1

J2P2 P3

12345678910111213141516

P4

12345678910111213141516J5

594837261J6 C

ON

NE

CT

OR

DB

9

D1

D2

D3

+-

+-

+-

J1 BN

C

J2 NTy

pe

R41

100

RF

TE

CH

NO

LO

GY

PTY

.LT

D.

10/8

Lei

ghto

nPL

ace,

HO

RN

SBY

,207

7,A

ustr

alia

9118

(VH

FA

MPL

IFIE

R)

3

33

JBS

afte

rR

HM


B PA150 PARTS LIST Ref. Description Part Number NOTE - ALL COMPONENTS FOR WHICH REF IS ACCOMPANIED WITH AN ASTERIX (*) ARE USED ONLY IN HIGH POWER MODELS (PA150XH) C1 CAP 10N 10% 50V X7R RAD.2 46/2001/010N C2 CAP 4N7 5% 400V MKT RAD.2 47/2040/04N7 C3 CAP 10U 35V RAD ELECTRO 41/2001/010U C4 CAP 10N 10% 50V X7R RAD.2 46/2001/010N C5 CAP 1N0 5% 63V NPO SM1206 46/3300/01N0 C6 CAP 1N0 5% 63V NPO SM1206 46/3300/01N0 C7 CAP 100N 10% 50V X7R RAD.2 46/2001/100N C8 CAP 10N 10% 50V X7R RAD.2 46/2001/010N C14 CAP 6.8U 20% 25V SOLID AL 41/2225/06U8 C15 CAP 100N 10% 50V X7R RAD.2 46/2001/100N C16 CAP 100N 10% 63V X7R 1206 46/3310/100N C17 CAP 1N0 500V MICA SM2220 48/3003/01N0 C18 CAP 1N0 500V MICA SM2220 48/3003/01N0 C29* CAP 6.8U 20% 25V SOLID AL 41/2225/06U8 C30* CAP 100N 10% 50V X7R RAD.2 46/2001/100N C31* CAP 100N 10% 63V X7R 1206 46/3310/100N C32* CAP 1N0 500V MICA SM2220 48/3003/01N0 C33* CAP 1N0 500V MICA SM2220 48/3003/01N0 C43* CAP 12P 500V MICA SM1210 48/3003/012P C44* CAP 12P 500V MICA SM1210 48/3003/012P C45* CAP 12P 500V MICA SM1210 48/3003/012P C46* CAP 12P 500V MICA SM1210 48/3003/012P C47* CAP 12P 500V MICA SM1210 48/3003/012P C48* CAP 12P 500V MICA SM1210 48/3003/012P C49* CAP 12P 500V MICA SM1210 48/3003/012P C50* CAP 12P 500V MICA SM1210 48/3003/012P C51 CAP 10P 5% 63V NPO SM 1206 46/3300/010P C52 CAP 10P 5% 63V NPO SM1206 46/3300/010P C53 CAP 1N0 5% 63V NPO SM1206 46/3300/01N0 C54 CAP 1N0 5% 63V NPO SM1206 46/3300/01N0 C55 CAP 1N0 5% 100V NPO RAD.2 46/2000/01N0 C56 CAP 1N0 5% 100V NPO RAD.2 46/2000/01N0 C57 CAP 1N0 5% 100V NPO RAD.2 46/2000/01N0 C58 CAP 1N0 5% 100V NPO RAD.2 46/2000/01N0 C59 CAP 1N0 5% 100V NPO RAD.2 46/2000/01N0 C60 CAP 1N0 5% 100V NPO RAD.2 46/2000/01N0 C61 CAP 1N0 5% 100V NPO RAD.2 46/2000/01N0 D1 DIODE SHTKY BAT17 SOT23 21/3030/0017 D2 DIODE SILICON 1N4148 21/1010/4148 D3 DIODE SHTKY BAT17 SOT23 21/3030/0017 L1 IND 1U0 10% CHOKE SM1206 37/3320/01U0 L2 INDUCTOR 1UH AXIAL 37/2021/001U L3 FERRITE BEAD 3x4x1 4S2 37/1022/0001 L4 COIL AIR COR 7T 1.5P 6.35ID 37/1635/1507 L5 IND MOLDED 6.5 TURN 37/2021/0006 L6 IND MOLDED 6.5 TURN 37/2021/0006 L7* INDUCTOR 1UH AXIAL 37/2021/001U L8* FERRITE BEAD 3x4x14S2 37/1022/0001


B PA150 PARTS LIST Ref. Description Part Number L9* COIL AIR CORE 7T 1.5P 6.35ID 37/1635/1507 L10* IND MOLDED 6.5 TURN 37/2021/0006 L11* IND MOLDED 6.5 TURN 37/2021/0006 L12 COIL AIR CORE 2T 2P 6.35ID 37/1400/1002 L13 COIL AIR CORE 2T 2P 6.35ID 37/1400/1002 L14 COIL AIR CORE 3T 2P 6.35ID 37/1635/2003 L15 COIL AIR CORE 3T 5P 6.35ID 37/1635/1503 L16 COIL AIR CORE 3T 2P 6.35ID 37/1635/2003 L17 INDUCTOR, MOULDED 7.5T 37/2021/0007 L18 INDUCTOR, MOULDED 7.5T 37/2021/0007 L19* COIL AIR CORE 6T 1.5P 4D 37/1400/1006 L20* COIL AIR CORE 6T 1.5P 4D 37/1400/1006 P1 6.35mm QC TAB VERT PCB MT 35/0635/0001 P3 6.35mm QC TAB VERT PCB MT 35/0635/0001 P4 CON 16WAY SHR'D HEADER 35/2502/0016 Q1 TRSTR GP PNP 2N3906 TO92 27/2010/3906 Q2 TRSTR GP NPN 2N3904 TO92 27/2020/3904 Q3 TRSTR GP NPN 2N3904 TO92 27/2020/3904 Q4 TRSTR NPN VHF RF MRF247 27/3020/MRF247 Q5* TRSTR NPN VHF RF MRF247 27/3020/MRF247 R1 RES 220 5% 0.25W SM1206 51/3380/0220 R2 RES 220 5% 0.25W SM1206 51/3380/0220 R3 RES 220 5% 0.25W SM1206 51/3380/0220 R4 RES 220 5% 0.25W SM1206 51/3380/0220 R5 RES 47K 5% 0.25W AXIAL 51/1040/047K R6 RES 100K 5% 0.25W AXIAL 51/1040/100K R7 RES 1K0 5% 0.25W AXIAL 51/1040/01K0 R8 RES 47K 5% 0.25W AXIAL 51/1040/047K R9 RES 100K 5% 0.25W AXIAL 51/1040/100K R10 RES 1K0 5% 0.25W AXIAL 51/1040/01K0 R11 RES 100 5% 0.25W AXIAL 51/1040/0100 R12 RES 1M0 5% 0.25W AXIAL 51/1040/01M0 R13 RES 100K 5% 0.25W AXIAL 51/1040/100K R14 RES 10K 5% 0.25W AXIAL 51/1040/010K R15 RES 10K 5% 0.25W AXIAL 51/1040/010K R16 RES 2K2 5% 0.25W AXIAL 51/1040/2K2 R17 RES 10K 5% 0.25W AXIAL 51/1040/010K R18 RES 10K 5% 0.25W AXIAL 51/1040/101K R19* RES 100 OHM 40W RF 51/RF40/0100 R20* RES 100 OHM 40W RF 51/RF40/0100 R21 RES 0.1 5% 10W ASW 10 51/0010/00R1 R22* RES 0.1 5% 10W ASW 10 51/0010/00R1 R23 RES 10K 5% 0.25W AXIAL 51/1040/010K R24 RES 270 5% 0.25W AXIAL 51/1040/0270 R25 RES 270 5% 0.25W AXIAL 51/1040/0270 R26 RES 680 5% 0.25W AXIAL 51/1040/0680 R27 RES 10K 5% 0.25W AXIAL 51/1040/010K R28 RES 10K 5% 0.25W AXIAL 51/1040/010K R29 RES 10K 5% 0.25W AXIAL 51/1040/010K R30 RES 47K 5% 0.25W AXIAL 51/1040/047K R31 RES 33K 5% 0.25W AXIAL 51/1040/033K


B PA150 Parts List Ref Description Part Number R32 RES 33K 5% 0.25W AXIAL 51/1040/033K R34 RES 220 5% 2W AXIAL 51/1052/0220 R35 RES 10 5% 0.25W AXIAL 51/1040/0010 R36 RES 10 5% 0.25W AXIAL 51/1040/0010 R37 RES 220 5% 2W AXIAL 51/1052/0220 R38* RES 220 5% 2W AXIAL 51/1052/0220 R39* RES 10 5% 0.25W AXIAL 51/1040/0010 R40* RES 10 5% 0.25W AXIAL 51/1040/0010 R41* RES 220 5% 2W AXIAL 51/1052/0220 R42* RES 12R 5% 2W AXIAL 51/1052/0012 R43 RES 12R 5% 2W AXIAL 51/1052/0012 R50(P2) RES 100 5% 0.25W AXIAL 51/1040/0100 RT1 THERMISTOR 54/0400/0080 RV1 TRIMPOT 10K 1 TURN VERT 53/1020/010K RV2 TRIMPOT 10K 1 TURN VERT 53/1020/010K U1 IC VOLT REG 78L08 TO 92M 25/2040/78L08 U2 IC QUAD OP AMP TLC274 25/2050/274C PA150A 135-156 MHz Parts These parts fitted to PA150A & AH C9 CAP 160P 500V MICA SM1812 48/3003/160P C10 CAP 160P 500V MICA SM1812 48/3003/160P C12 CAP 120P 500V MICA SM1812 48/3003/120P C13 CAP 27P 500V MICA SM1210 48/3003/027P C19 CAP 68P 500V MICA SM1210 48/3003/068P C20 CAP 68P 500V MICA SM1210 48/3003/068P C21 CAP 510P 500V MICA SM1812 48/3003/510P C22 CAP 330P 500V MICA SM1812 48/3003/330P C23 CAP 270P 500V MICA SM1812 48/3003/270P C39 CAP 39P 500V MICA SM1210 48/3003/039P C40 CAP 39P 500V MICA SM1210 48/3003/039P C41 CAP 10P 500V MICA SM1210 48/3003/010P C42 CAP 12P 500V MICA SM1210 48/3003/012P These additional parts used on PA150AH ONLY C24* CAP 160P 500V MICA SM1812 48/3003/160P C25* CAP 160P 500V MICA SM1812 48/3003/160P C27* CAP 120P 500V MICA SM1812 48/3003/120P C28* CAP 27P 500V MICA SM1210 48/3003/027P C34* CAP 68P 500V MICA SM1210 48/3003/068P C35* CAP 68P 500V MICA SM1210 48/3003/068P C36* CAP 510P 500V MICA SM1812 48/3003/510P C37* CAP 330P 500V MICA SM1812 48/3003/330P C38* CAP 270P 500V MICA SM1812 48/3003/270P


B PA150 Parts List Ref Description Part Number PA150B 154-174 MHz Parts These parts fitted to PA150B & BH C9 CAP 180P 500V MICA SM1812 48/3003/180P C10 CAP 180P 500V MICA SM1812 48/3003/180P C12 CAP 100P 500V MICA SM1812 48/3003/100P C13 CAP 20P 500V MICA SM1210 48/3003/020P C19 CAP 51P 500V MICA SM1210 48/3003/051P C20 CAP 51P 500V MICA SM1210 48/3003/051P C21 CAP 390P 500V MICA SM1812 48/3003/390P C22 CAP 220P 500V MICA SM1812 48/3003/220P C23 CAP 180P 500V MICA SM1812 48/3003/180P C39 CAP 27P 500V MICA SM1210 48/3003/027P C40 CAP 27P 500V MICA SM1210 48/3003/027P C41 CAP 8P 500V MICA SM1210 48/3003/008P C42 CAP 8P 500V MICA SM1210 48/3003/008P These additional parts used on PA150BH ONLY C11 CAP 160P 500V MICA SM1812 48/3003/160P C24* CAP 180P 500V MICA SM1812 48/3003/180P C25* CAP 180P 500V MICA SM1812 48/3003/180P C26 CAP 160P 500V MICA SM1812 48/3003/160P C27* CAP 100P 500V MICA SM1812 48/3003/100P C28* CAP 20P 500V MICA SM1210 48/3003/020P C34* CAP 51P 500V MICA SM1210 48/3003/051P C35* CAP 51P 500V MCA SM1210 48/3003/051P C36* CAP 390P 500V MICA SM1812 48/3003/390P C37* CAP 220P 500V MICA SM1812 48/3003/220P C38* CAP 180P 500V MICA SM1812 48/3003/180P End parts list

1 2 3 4 5 6 7 8

A

B

C

D

E

F

87654321

F

E

D

C

B

A

1 2

120W AMPLIFIER, VHF 136-174 MHZ

05/9118 R7 720-Dec-2004

D:\Protel Files\Master_EDA\9118_PAVHF_FAN\9118.ddb - Documents\9118R7V7.sch

Title

Size: Number:

Print Date:

File:

Revision:

Sheet of

A3RF Technology Pty Ltd

Unit 10, 8 Leighton PlaceHornsby, NSW 2077

AustraliaRev. Release Date: Originator:

Rev No. ECO No. Description of Change

Sheet

Revision:Design

LOW PASS FILTER

COMBINER

DIRECTIONAL COUPLER

SPLITTER

FWD.PWR.

REV.PWR.

IC A

FWD.PWR.REV.PWR.

IC BIC ARF DET.OVER TEMP.

RF DET.

RF LED

RF LED

TEMP. LED

TEMP. LED

IC B

OVER TEMP.

DC LED

+8.0

+8.0+13.8 +13.2B

+13.2A

+13.8

+8.0

+8.0

+8.0

+13.8

+13.8

+13.2A

+13.2B

NOT USED IN 50/60 WATT VERSIONS

1-25WINPUT

25-120WOUTPUT

L11U

R1

220

R2

220

R3220

R4220

D1BAT17

R6

100K

R7

1K

R9100KR10

1KR11

100

C110N

R12

1M

C24N7

R13100K

J1

TP1

TP2

+C310U

VI1

GN

D2

VO 3U1LM78L08

R1410K

tRT1

D21N4148

Q12N3906

Q23904

R1510K

R162K2R1710K

R1810K

C410N

C51N0

C61N0

C7100N

J2

Q32N3904

R19100

R20100

R210R1

R220R1

TP3

C810N

P1

P2

P3

123456789

10111213141516

P4

R24

270

R25270

R26680

R2710K

RV1

R28

10K

RV2

R2910K

R3047K

D3BAT17

R3133K

R32

33K

12

1314

00

U2DTLC274

+ C146U8

C16100N

C17

1N0

R34220

C181N0

R3510

C19*51P

C20*51P

C22*220P

C23*180P

Q4MRF247

R37220

L6

+ C296U8

C31100N

C32

1N0

R38220

C331N0

R3910

C34*51P

C35*51P

C37*220P

C38*180P

Q5MRF247

R41220

L11

C3927P

C4027P

C418P

C428P

C4312P

C4412P

C4512P

C4612P

C4712P

C4812P

C4912P

C5012P

C53

1N0

C54

1N0

C551N0

C561N0

C571N0

C581N0

C591N0

C601N0

C611N0

L10

L15

L12 L13

L14 L16

L9170N

L17

L18

L19

L20

C52

10P

C51

10P

L5

L3

L8

R3610

L21U

C21*390P

L4

C15100N

C110P

C260P

C36*390P

L71U

R4010 C30

100N

R4212

R4312

R8

47K

R5

47K

C9*180P

C10*180P

C24*180P

C25*180P

C12*100P

C13*20P

C27*100P

C28*20P

(SUFFIX -H DESIGNATION)

3

21

114U2A

TLC274

5

67

00

U2BTLC274

10

98

00

U2CTLC274

5

67

00 U3B

TLC274

3

21

114

U3ATLC274

R481K

R4910K

R4410K

R451K5

R47100

+8.0

C631N0

J3

FAN

+13.8

C62

1N0

R33

100

C641N0

12

1314

00 U3D

TLC274

10

98

00 U3C

TLC274

Q63055 R50

*10K

D6*1N4148

D5

*1N4148

R4610K

D41N4002

R2310K

V+

1

Vo 2

GN

D3

U4LM61

6

221 Add fan control circuit* VALUES ARE FOR 154 - 174 MHz

C19 C20 C21 C22 C23C34 C35 C36 C37 C38

C9C24

C10C25

160P 160P

C12C27

120P

C13C28

27P68P

* 136-154MHz

68P510P 330P 270P

C39C40

C41 C42

10P 12P39P(SUFFIX -A MODELS)

(SUFFIX -B MODELS) C11/C26 MAY BE FITTED ON SOME MODELS

(SUFFIX -AH MODELS)

C11C26

NF NF270P

NF

100P NF

R42R4312

AH model high-end low output power fix

7

211

1 2 3 4 5 6 7 8

A

B

C

D

E

F

87654321

F

E

D

C

B

A

1 2

120W AMPLIFIER, VHF 136-174 MHZ

05/9118 R7 821-Feb-2006

D:\Protel Files\Master_EDA\9118_PAVHF_FAN\9118.ddb - Documents\9118R7V9.sch

Title

Size: Number:

Print Date:

File:

Revision:

Sheet of

A3RF Technology Pty Ltd

Unit 10, 8 Leighton PlaceHornsby, NSW 2077

AustraliaRev. Release Date: Originator:

Rev No. ECO No. Description of Change

Sheet

Revision:Design

LOW PASS FILTER

COMBINER

DIRECTIONAL COUPLER

SPLITTER

FWD.PWR.

REV.PWR.

IC A

FWD.PWR.REV.PWR.

IC BIC ARF DET.OVER TEMP.

RF DET.

RF LED

RF LED

TEMP. LED

TEMP. LED

IC B

OVER TEMP.

DC LED

+8.0

+8.0+13.8 +13.2B

+13.2A

+13.8

+8.0

+8.0

+8.0

+13.8

+13.8

+13.2A

+13.2B

NOT USED IN 50/60 WATT VERSIONS

1-25WINPUT

25-120WOUTPUT

L11U

R1

220

R2

220

R3220

R4220

D1BAT17

R6

100K

R7

1K

R9100KR10

1KR11

100

C110N

R12

100K

C2100N

R13100K

J1

TP1

TP2

+C310U

VI1

GN

D2

VO 3U1LM78L08

R1410K

tRT1

D21N4148

Q12N3906

Q23904

R1510K

R162K2R1710K

R1810K

C410N

C51N0

C61N0

C7100N

J2

Q32N3904

R19100

R20100

R210R1

R220R1

TP3

C810N

P1

P2

P3

123456789

10111213141516

P4

R24

270

R25270

R26680

R2710K

RV1

R28

10K

RV2

R2910K

R3047K

D3BAT17

R3133K

R32

33K

12

1314

00

U2DTLC274

+ C146U8

C16100N

C17

1N0

R34**220

C181N0

R3510

C19*51P

C20*51P(not fit in BH)

C22*220P

C23*180P(270P fo BH model)

Q4MRF247

R37**220

L6**

+ C296U8

C31100N

C32

1N0

R38**220

C331N0

R3910

C34*51P

C35*51P(not fit in BH)

C37*220P

C38*180P(270P for BH model)

Q5MRF247

R41**220

L11**

C3927P

C4027P

C418P

C428P

C4312P

C4412P

C4512P

C4612P

C4712P

C4812P

C4912P

C5012P

C53

1N0

C54

1N0

C551N0

C561N0

C571N0

C581N0

C591N0

C601N0

C611N0

L10

L15

L12 L13

L14 L16

L9170N

L17

L18

L19

L20

C52

10P

C51

10P

L5

L3

L8

R3610

L21U

C21*390P

L4

C15**100N

C11***120P

C26***120P

C36*390P

L71U

R4010 C30

**100N

R4212

R4312

R8

47K

R5

47K

C9*180P

C10*180P

C24*180P

C25*180P

C12*120P

C13*22P

C27*120P

C28*22P

(SUFFIX -H DESIGNATION)

3

21

114U2A

TLC274

5

67

00

U2BTLC274

10

98

00

U2CTLC274

5

67

00 U3B

TLC274

3

21

114

U3ATLC274

R481K

R4910K

R4410K

R451K5

R47100

+8.0

C631N0

J3

FAN

+13.8

C62

1N0

R33

100

C641N0

12

1314

00 U3D

TLC274

10

98

00 U3C

TLC274

Q63055

R50

*10K

D6*1N4148

D5

*1N4148

R46

10K

D41N4002

R2310K

V+

1

Vo 2

GN

D3

U4LM61

6

221 Add fan control circuit* VALUES ARE FOR 154 - 174 MHz

C19 C20 C21 C22 C23C34 C35 C36 C37 C38

C9C24

C10C25

160P 160P

C12C27

120P

C13C28

27P68P

136-154MHz68P

510P 330P 270P

C39C40

C41 C42

10P 12P39P(SUFFIX -A MODELS)

(SUFFIX -B MODELS)

*** C11/C26 ARE NOT FITTED ON 50W MODELS

(SUFFIX -AH MODELS)

C11C26

NF NF270P

NF

100P NF

R42R4312

AH model high-end low output power fix

7

211

** THESE 8 COMPONENTS ARE NOT FITTED ON PA150BH (100W) MODELS

8 241 mismatch fix for new pcb

9 260 reduce ALC loop gain: R12 to 100K, C2to 100N

9118 ckt_A4.PDFpage1