Datasheet STB7101TR, STB7101 Datasheet (SGS Thomson Microelectronics)

1/5January, 22 2002

STB7101

0.9/1.9GHz BROAD BAND PRE-POWER AMPLIFIER

SOT323-6L (SC70)

ORDER CODE

STB7101

BRANDING

101

1

2

3

6

5

4

(Bottom View)

6

5

4

1

2

3

1
0
1

(Top View)

PIN CONNECTION

Pin No. Pin Name

1GND
2GND
3 INPUT
4VCC
5GND
6 OUTPUT

• OPERATING FREQUENCY 900-1900MHz

• OUTPUT POWER 9.8dBm typ. @ 900MHz

7.5dBm typ. @ 1900MHz

• POWER GAIN G

P

= 20.3dB typ. @ 900MHz

G

P

= 20.5dB typ. @ 1900MHz

APPLICATIONS

PA driver for cellular applications

DESCRIPTION

The STB7101, designed for cellular applications
(0.9/1.9GHz), uses a 20 GHz F

T

silicon bipolar
process. This IC is a wide range amplifier operating
from 900MHz to 1900MHz, in the overall
frequencies range the gain flatness is less than 1
dB. The STB7101 i s housed in a very small SMD
package SOT323-6L.

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Conditions Value Unit

V

cc

Supply voltage

T

a

= +25 oC, pin 4 and 6

4.5 V

T

stg

Storage temperature -55 to +150

o

C

T

a

Operating ambient temperature -40 to +85

o

C

P

in

Input power

T

a

= +25 oC

10 dBm

STB7101

2/5

ELECTRICAL CHARACTERISTICS (T

a

= +25oC, Vcc = 2.75V, ZL = Zs = 50Ω, unless otherwise specified)

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

cc

Supply voltage 2.6 2.75 3.3 V

I

cc

Circuit current No signal 28 mA

G

p

Power Gain

f = 0.9GHz
f = 1.9GHz

20.3

20.5

dB

NF Noise figure

f = 0.9GHz
f = 1.9GHz

5

4.5

dB

P

1dB

Output 1dB Compr.

Power

f = 0.9GHz
f = 1.9GHz

9.8

7.5

dBm

RL

IN

Input return loss

f = 0.9GHz
f = 1.9GHz

8

6.2

dB

RL

OUT

Output Return loss

f = 0.9GHz
f = 1.9GHz

9.7

9.7

dB

S

12

Isolation

f = 0.9GHz
f = 1.9GHz

-34

-33

dB

P

o

(Sat)

Saturated output power

level

f = 0.9GHz
f = 1.9GHz

11.3

9.7

dBm

OIP3

Output Third Order

Intercept

f = 0.9GHz
f = 1.9GHz

16.5

14.9

dBm

TYPICAL EVALUATION CIRCUIT

Evaluation circuit components

C1 = C2 = C3 = 27pF
C4 = 10nF
L1 = 15nH
L2 = 33nH

GND

3

GND

2

INPUT1Vcc

6

GND

5

OUTPUT

4

U1

STB7101

C1

27p

J1

RF IN

L1
15n

C2

27p

J2

RF OUT

L2 33 n

C3

27p

C4

10n

VCC (+2.75V)

3/5

STB7101

Insertion Power Gain versus Frequency

800 1000 1200 1400 1600 1800 2000

Frequency (MHz)

6

8

10

12

14

16

18

20

22

24

Insertion Power Gain (dB)

Noise Figure versus Frequency

800 1000 1200 1400 1600 1800 2000

Frequency (MHz)

3

4

5

6

7

NF (dB)

Power Gain versus Output Power @ 1900 MHz

-10-8-6-4-202468100
Output Power (dBm)

6

8

10

12

14

16

18

20

22

24

Power Gain (dB)

Isolation versus Frequency

800 1000 1200 1400 1600 1800 2000

Frequency (MHz)

-50

-40

-30

-20

-10

0

Isolation (dB)

Circuit Current versus Supply Voltage

0 0.5 1 1.5 2 2.5 3 3.50

Vcc (V)

-5

0

5

10

15

20

25

30

35

40

Icc (mA)

Power Gain versus Output Power @ 900 MHz

-10 -8 -6 -4 -2 0 2 4 6 8 10 120
Output Power (dBm)

6

8

10

12

14

16

18

20

22

24

Power Gain (dB)

TYPICAL PERFORMANCE (Ta = +25 oC, Vcc = 2.75V, unless otherwise specified)

STB7101

4/5

SOT323-6L MECHANICAL DATA

mm Inch

MIN. TYP. MAX MIN. TYP. MAX

A 0.8 1.1 0.031 0.043
A1 0 0.1 0 0.004
A2 0.8 1 0.0031 0.039

b 0.15 0.3 0.006 0.012

c 0.1 0.18 0.004 0.007

D 1.8 2.2 0.071 0.088

E 1.15 1.35 0.045 0.59

e 0.65 0.025

H 1.8 2.4 0.071 0.094
Q 0.1 0.4 0.004 0.016

DIM.

5/5

STB7101

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