Motorola MRFIC1805 Datasheet



SEMICONDUCTOR TECHNICAL DATA

The MRFIC Line

    

This two–stage class AB monolithic GaAs amplifier in a low–cost 16 lead
plastic package is designed for output or driver applications in 1.9 GHz PCS
handsets and basestations. The design is optimized for 3.0 Volt operation in
systems such as Japan’s PHS, Europe’s DECT and the emerging North
American PCS services. With modifications to the simple off–chip matching, the
device can be used in other applications from 1.5 to 2.5 GHz.

• High Output Capability = 27 dBm Typical P

21.5 dBm Typical with PHS Format

• High Gain = 21 dB Typical Small Signal, 20 dB at P

• Low Current Drain = 170 mA Typical with PHS Format

250 mA Typical with DECT Format

• Low–Cost, Low Profile Plastic TSSOP Package

• Order MRFIC1805R2 for Tape and Reel.

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

• Device Marking = M1805

sat

= 22 dBm

out

Order this document

by MRFIC1805/D



1.9 GHz

POWER AMPLIFIER

GaAs MONOLITHIC

INTEGRATED CIRCUIT

CASE 948C–03

(TSSOP–16)

ABSOLUTE MAXIMUM RATINGS (TA = 25_C unless otherwise noted)

Ratings Symbol Value Unit

Supply Voltage VDD, VD1,

Supply Voltage V
RF Input Power RF
Drain Current I
Thermal Resistance, Junction to Air R
Operating Junction Temperature T
Ambient Operating Temperature T
Storage Temperature T

PCNTRL

16

GND

15

GND

V

D1

RF OUT/

GND N/C

V

D2

V

D2
SS

in

DD

θJA

J

A

stg

RF OUT/

V

D2

6 Vdc

–4 Vdc
+10 dBm
500 mA
240 /W

+175

–30 to +85

–65 to +125

91011121314

_

C

_

C

_

C

REV 1

 Motorola, Inc. 1997

MOTOROLA RF DEVICE DATA

GATE

BIAS

1

234

V

GND GND

SS

GND

GND GND N/C

RF IN

Pin Connections and Functional Block Diagram

8765

MRFIC1805

1

RECOMMENDED OPERATING CONDITIONS

Parameter Symbol Value Unit

Supply Voltage VDD, VD1,

Supply Voltage V
PA Control Voltage PCNTRL 0.0 to V
RF Input Power P
Operating Frequency Range f

V

D2
SS

in

OP

2.7 to 5 Vdc

–2.5 Vdc

–20 to +10 dBm

1500 to 2200 MHz

DD

Vdc

ELECTRICAL CHARACTERISTICS (V

IDQ = 125 mA, circuit configuration as shown in Figure 1)

Characteristic

Power Output, Saturation P
RF Output Power P
Adjacent Channel Power Ratio (384 Kbps p/4 DQPSK Signal,

600 kHz Offset, P
RF Output 1 dB Compression P
2nd Harmonic Output – – –40 – dBc
3rd Harmonic Output – – –40 – dBc
Supply Current I
Supply Current I
Supply Current I
Input Return Loss – – 13 – dB
Reverse Isolation – – 31 – dB
Output Third Intercept – – 34 – dBm
Turn On Time – – 1 –

= 21 dBm

out

PCNTRL

= VD2 = 3 Vdc, Vss = –2.5 Vdc, TA= 25_C, f = 1.9 GHz, Pin = +2 dBm, PCNTRL set for

D1

Symbol Min Typ Max Unit

23 25 – dBm
20 21.5 – dBm

– –58 –55 dBc

22 24 – dBm

– 170 210 mA
– 200 300 µA
– 220 300 µA

C5

RF OUT

C3

SAT

out

P

ACP

1dB

DD
SS

PCNTRL

V

DD

C4

T2

R1

C2

m

s

MRFIC1805

2

15

16

GATE

BIAS

1

C6

V

SS

R1 – 22
C1 – 1.2 pF
C2 – 2.2 pF
C3, C6 – 330 pF

34

2

W

C4, C5, – 22 pF
T1 – 100 W Line, 7 mm
T2 – 100 W Line, 20 mm
Board Material – 30 MIL FR4
Connectors – SMA Type

Figure 1. Applications Circuit Configuration

91011121314

8765

T1

C1

RF IN

MOTOROLA RF DEVICE DATA

TYPICAL CHARACTERISTICS

30

25

20

15

10

, OUTPUT POWER (dBm)

5

out

P

0

–5

–15 –5

–10

Pin, INPUT POWER (dBm)

2.5 V

Figure 2. Output Power versus Input Power

30

25

20

15

10

, OUTPUT POWER (dBm)

5

out

P

0

–5

–20

85°C

–35°C

–10 10

Pin, INPUT POWER (dBm)

TA = 25°C

–5–15 5

VDD = 3.5 V

f = 1.9 GHz
I

DDQ

TA = 25

0

f = 1.9 GHz
I

DDQ

VDD = 3.0 V

0

3.0 V

= 125 mA

°

C

= 125 mA

30

25

20

15

10

, OUTPUT POWER (dBm)

5

out

P

0

–5

105

–20 0–20

–15

150 mA

125 mA

–10 –5

Pin, INPUT POWER (dBm)

I

DDQ

= 190 mA

100 mA

f = 1.9 GHz
VDD = 3.0 V
TA = 25

°

C

105

Figure 3. Output Power versus Input Power

300

250

VDD = 3.5 V

200

150

, SUPPLY CURRENT (mA)

DD

I

100

50

–15 –10–20

3.0 V

2.5 V

–5 0 10

Pin, INPUT POWER (dBm)

f = 1.9 GHz
I

= 125 mA

DDQ

TA = 25

°

C

5

Figure 4. Output Power versus Input Power

300

250

I

= 190 mA

200

150

, SUPPLY CURRENT (mA)

DD

I

100

50

–20

DDQ

150 mA
125 mA
100 mA

–10 0

Pin, INPUT POWER (dBm)

–5

Figure 6. Supply Current versus Input Power

MOTOROLA RF DEVICE DATA

f = 1.9 GHz
VDD = 3.0 V
TA = 25

°

C

510

Figure 5. Supply Current versus Input Power

300

VDD = 3.5 V

250

200

150

100

, SUPPLY CURRENT (mA)

DD

I

50

0

0.5–15

3.0 V

1.0

1.5

P

, CONTROL VOLTAGE (V)

CNTRL

2.5 V

f = 1.9 GHz
I

= 125 mA

DDQ

Pin = +10 dBm
TA = 25

°

2.0 2.5 3.0

Figure 7. Supply Current versus Control Voltage

MRFIC1805

C

3.50.0

3