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Datasheet: 102 (STMicroelectronics)

0.1/2.5 Ghz Si Mmic Buffer Amplifiers

 

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STMicroelectronics
1/10
PRELIMINARY DATA
June, 17 2002
STB7102, STB7103, STB7104
0.1/2.5 GHz Si MMIC BUFFER AMPLIFIERS
SOT323-6L (SC70)
DESCRIPTION
The STB7102, STB7103 and STB7104 designed for Mobile Phone applications (0.1/2.5GHz), are an
high isolation Si MMIC Buffer Amplifiers. Manufactured in the third generation of ST proprietary bipolar
process, they offers an excellent isolation and a good linearity using a low current consumption. These
low current amplifiers operate on 3.0 V. The STB710x family is housed in an ultra miniature package
SOT323-6L surface mount package. SOT323-6L dimensions are 1.15mmx1.8mm with 0.8 mm
thickness.
APPLICATION
UHF BUFFER AMPLIFIER for Mobile Phone Application (0.1/2.5GHz)
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Conditions Value
Unit
V
cc
Supply voltage
3.3
V
T
stg
Storage temperature
-40 to +100
o
C
T
a
Operating ambient temperature
-30 to +85
o
C
FEATURES
STB710X FAMILY
OPERATING FREQUENCY 100-2500MHz
EXCELLENT ISOLATION
LOW CURRENT CONSUMPTION
ULTRA MINIATURE SOT323-6L PACKAGE
(1.15 x 1.8 x 0.8 mm)
STB7102
HIGH ISOLATION (45 dB @ 950 MHz)
STB7103
HIGH LINEARITY (P1 dB OUTPUT = +1.5 dBm)
STB7104
LOW CURRENT CONSUMPTION (2.8 mA)
ORDERING INFORMATION
P/N
ORDER CODE
MARKING
STB7102
STB7102TR
102
STB7103
TBD
103
STB7104
TBD
104
STB7102, STB7103, STB7104
2/10
Pin No.
Pin Name
1
INPUT
2
GND
3
GND
4
OUTPUT
5
GND
6
VCC
3
2
1
4
5
6
(Bottom View)
4
5
6
3
2
1
(Top View)
PIN CONNECTION
PRODUCT LINE-UP
Part Number
Icc (mA)
950 MHz output port
matching frequency
Gp at 1dB (dB)
ISL (dB)
P
1dBout
(dBm)
STB7102
4.3
15.5
45
0
STB7103
4.1
17.5
45
1.5
STB7104
2.8
17
45
-0.25
IQ
Demodulator
RF
Mixer
LNA
SAW
Filter
IF
Filter
X
X
RF PLL
RF PLL
Lo Buffer
Amplifier
IF
Amp
AGC
Duplexer
ADC
IF PLL
IF PLL
IF Buffer
I
X
X
X
X
Q
ADC
Receiver section
These ICs can be added to your system around
parts, when you need more isolation or gain.
The application showed above is only an example therefore it can depend on your kit evaluation.
Duplexer
RF
Mixer
X
RF PLL
Lo Buffer
Amplifier
RF
Filter
IF
Amp
IF
Filter
DAC
I
Q
DAC
IQ
Modulator
IF PLL
IF Buffer
X
X
AGC
PA
Duplexer
RF
Mixer
X
RF PLL
Lo Buffer
Amplifier
RF
Filter
IF
Amp
IF
Filter
DAC
I
Q
DAC
IQ
Modulator
IF PLL
IF Buffer
X
X
RF
Mixer
X
RF PLL
Lo Buffer
Amplifier
RF
Filter
RF
Mixer
X
X
RF PLL
RF PLL
Lo Buffer
Amplifier
RF
Filter
RF
Filter
RF
Filter
IF
Amp
IF
Filter
DAC
I
Q
DAC
IQ
Modulator
IF PLL
IF Buffer
X
X
IF
Filter
DAC
I
Q
DAC
IQ
Modulator
IF PLL
IF Buffer
X
X
DAC
I
Q
DAC
IQ
Modulator
IF PLL
IF Buffer
X
X
IQ
Modulator
IF PLL
IF Buffer
X
X
IF PLL
IF PLL
IF Buffer
X
X
X
X
AGC
PA
Transmission section
Example of a digital cellular phone (Receiver and Transmission section)
3/10
STB7102, STB7103, STB7104
(T
a
= +25
o
C, V
cc
= 3V, Z
s
=
Z
L
= 50
, unless otherwise specified)
ELECTRICAL CHARACTERISTICS
Symbol
Parameters
Test
Conditions
STB7102
(1)
STB7103
(2)
STB7104
(2)
Unit
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
I
cc
Circuit Current
f = 950 MHz
3.3
4.3
5.3
3.3
4.1
4.9
2.2
2.8
3.4
mA
P1dB
Output Power at 1dB
Compression Point
f = 950 MHz
0
1.5
-0.25
dBm
G
P
Gain at 1dB
Compression Point
f = 950 MHz
15.5
17.5
17
dB
NF
Noise Figure
f = 950 MHz
3
2.85
3.3
dB
ISL
Isolation
f = 950 MHz
45
45
45
dB
RL
in
Input Return Loss
f = 950 MHz
8
10
7
dB
RL
out
Output Return Loss
f = 950 MHz
20
7
7
dB
(2)
STB7103 and STB7104 data are measured in TEST CIRCUIT showed in page 8
(1)
STB7102 data are measured in TEST CIRCUIT showed in page 5
STB7102, STB7103, STB7104
4/10
TYPICAL PERFORMANCE
(STB7102)
Output Power @ 1dB
compression point
13
14
15
16
17
18
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
P out (dB m )
Gp
(
d
B
)
P1dBc p
-0.1 dB m
Power Gain vs. Frequency
6
8
10
12
14
16
18
800
850
900
9 50
10 00
10 50
1100
1150
1200
f (MHz )
G
p
(
d
B)
Reverse Isolation vs. Frequency
-6 0
-5 0
-4 0
-3 0
-2 0
-1 0
0
8 0 0
8 5 0
9 0 0
9 5 0
1 0 0 0
1 0 5 0
1 1 0 0
1 1 5 0
1 2 0 0
f (M Hz)
IS
L (
d
B
)
Output Return Loss vs. Frequency
-6 0
-5 0
-4 0
-3 0
-2 0
-1 0
0
8 0 0
8 5 0
9 0 0
9 5 0
1 0 0 0
1 05 0
11 0 0
1 1 5 0
1 2 0 0
f (Mh z)
OR
L
(
d
B
)
Noise Figure vs. Frequency
0
0 .5
1
1 .5
2
2 .5
3
3 .5
4
4 .5
8 0 0
8 5 0
9 0 0
9 5 0
1 0 0 0
1 0 5 0
1 1 0 0
1 1 5 0
1 2 0 0
f (Mh z)
NF
(
d
B
)
Input Return Loss vs. Frequency
-35
-30
-25
-20
-15
-10
-5
0
800
850
900
950
1000
1050
1100
1150
1200
f (Mhz )
IR
L
(
d
B
)
5/10
STB7102, STB7103, STB7104
STB7102 TEST CIRCUIT
1
2
3
4
4
3
2
1
Title
Number
Revision
Size
A4
Date:
17-Jun-2002
Sheet of
File:
C:\PROGETTI\LOBUFFER_Uloba\uloba.ddb
Drawn By:
C5
10nF
C3
33pF
C8
1.5pF
L1
33nH
C2
1uF
1
2
JP1
VCC
C1
33pF
L2
2n2
J1
RF IN
L3
10nH
J2
RF OUT
L4
5n6
GND
3
GND
2
INPUT
1
VCC
6
GND
5
OUT
4
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