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January, 22 2002
STB7001
900 MHz THREE GAIN LEVEL LNA
FULLY INTEGRATED 900 MHz LNA
THREE GAIN LEVELS (0dB, 18dB, 26dB typ.
@ 2.8V)
LOW NOISE FIGURE
TEMPERATURE COMPENSATED
APPLICATIONS
GSM HANDSETS
DESCRIPTION
The STB7001 is a Silicon monolithic amplifier, that
offers low noise figure and three gain levels for
900-MHz applications. STB7001 is housed in a
small industry-standard MSOP8 surface mount
package, requiring very little board space (50% re-
duction vs SO8 Package). MSOP8 dimensions
are 3mmx5mm with a 1.1mm thickness. The de-
vice is ESD protected and requires minimum ex-
ternal components in the application circuit, for the
on-chip bias and gain control . Furthermore, tem-
perature and supply voltage compensation as-
sures high stability over a wide range of operating
conditions.
MSOP8
ORDER CODE
STB7001
BRANDING
7001
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
cc
Supply voltage
5.5
V
Tj
Junction Temperature
150
C
T
stg
Storage temperature
-40 to +85
C
THERMAL DATA
Symbol
Parameter
Value
Unit
R
th(j-a)
Junction -ambient Thermal Resistance
200
C/W
STB7001
2/7
ELECTRICAL SPECIFICATION (T
amb
= 25
C, Vcc = 2.8V)
Note(1) : Gp1 min gain, Gp2 mid gain and Gp3 max gain.
Symbol
Parameters
Test Conditions
Min.
Typ.
Max.
Unit
Vcc
Supply voltage
2.7
2.8
2.9
V
I
bias
Bias current
for G
p1
(1)
G
p2
(1)
G
p3
(1)
8
14
10
11.5
17.5
15.0
15.0
22.5
19
mA
Istby
Standby current
20
A
f
Frequency range
925
960
MHz
G
p1,2,3
Power gain
for G
p1
G
p2
G
p3
-3.0
16.0
24.0
0.0
18.0
26.0
3.0
20.0
28.0
dB
NF
1,2,3
Noise figure
for G
p1
G
p2
G
p3
10
3.1
2.5
dB
P1dB
1,2,3
Input 1 dB Compr.Power
for G
p1
G
p2
G
p3
-15.0
-19.0
-26.5
dBm
IIP3
1,2,3
Input Third Order Intercept
for G
p1
G
p2
G
p3
-6.0
-11.0
-20.0
dBm
VSWRi
Input VSWR
1.5:1
VSWRo
Output VSWR
1.5:1
AZout
Zout LNA on/off
15
%
PINOUT
Pin Number
Symbol
Description
Evaluation circuit components
1
RFin
RF input
L2 = 5.1nH, C2 = n/c
2
Gnd
Ground
3
Vcc
Voltage supply
C4 = 8pF, L1 = 110nH, C7 = 10nF, C6 = 4.7uF
4
ARLNA0
Enable for power down
C3 = 10nF
5
RFout
RF output
C9 = 5pf, L3 = 10nH, C10 = 10nF, C11 = 100pF, L4 = 110nH
6
Gnd
Ground
7
GC1
Gain selection
C5 = 10nF
8
GC2
Gain selection
C8 = 10nF
GAIN SELECTI0N
G
p1
G
p2
G
p3
GC1
0
0
1
GC2
0
1
1
3/7
STB7001
L2
5n1
L1
110n
L3
10n
L4
110n
C4
8p
C7
10n
C3
10n
C8
10n
C5
10n
C9
5p
C10
10n
C11
100p
1
2
JP1
BIAS
C6
4u7
VCC
VCC
VCC
J1
SMA_IN
J2
SMA_OUT
SW_SPDT
VCC
S1
SW SPDT
S3
SW SPDT
VCC
VCC
RF_IN
1
GND
2
VCC
3
ARLNA0
4
RF_OUT
5
GND
6
GC1
7
GC2
8
U1
LNA
ST
B
7
0
0
1
C2
n/c
S2
C12
n/c
TEST CIRCUIT SCHEMATIC
TEST CIRCUIT PHOTOMASTER (board dimentions 23.5x20.3mm)
BOTTOM VIEW
23.5mm
20.
3m
m
TOP VIEW
23.5mm
20.
3
m
m
STB7001
4/7
MID GAIN
Freq.
VSWRi
VSWRo
Isolation
Gain
905
1.18
1.10
-44.66
17.41
912.5
1.18
1.11
-43.96
17.36
913.5
1.18
1.11
-46.54
17.32
927.5
1.18
1.12
-46.48
17.28
935
1.18
1.12
-46.39
17.25
942.5
1.18
1.13
-48.29
17.19
950
1.18
1.13
-47.05
17.16
957.5
1.19
1.13
-48.72
17.11
965
1.20
1.14
-50.07
17.07
972.5
1.20
1.14
-50.48
17.02
980
1.21
1.15
-55.86
16.96
987.5
1.22
1.15
-52.12
16.92
995
1.23
1.15
-56.92
16.86
MAX GAIN
Freq.
VSWRi
VSWRo
Isolation
Gain
905
1.16
1.15
-43.61
25.09
912.5
1.15
1.17
-45.69
25.04
913.5
1.15
1.17
-42.84
24.98
927.5
1.15
1.17
-43.36
24.92
935
1.14
1.18
-42.42
24.85
942.5
1.14
1.19
-48.58
24.79
950
1.14
1.20
-47.86
24.72
957.5
1.13
1.18
-41.52
24.68
965
1.13
1.19
-45.53
24.61
972.5
1.14
1.22
-49.18
24.57
980
1.13
1.20
-44.99
24.48
987.5
1.14
1.21
-47.83
24.41
995
1.14
1.21
-45.33
24.35
INPUT/OUTPUT VSWR, ISOLATION AND GAIN PARAMETERS (MEASURED DATA)
5/7
STB7001
MIN GAIN
Freq.
VSWRi
VSWRo
Isolation
Gain
905
1.54
1.11
-43.83
0.07
912.5
1.54
1.11
-43.63
0.03
913.5
1.54
1.12
-45.88
-0.04
927.5
1.54
1.13
-45.76
-0.10
935
1.55
1.13
-45.69
-0.13
942.5
1.56
1.14
-46.75
-0.21
950
1.56
1.14
-45.29
-0.27
957.5
1.57
1.14
-45.20
-0.34
965
1.59
1.15
-45.38
-0.41
972.5
1.60
1.15
-45.79
-0.48
980
1.61
1.16
-45.15
-0.59
987.5
1.61
1.17
-42.79
-0.67
995
1.60
1.17
-43.49
-0.77