ZAMP003
800-2500MHz MMIC WIDEBAND AMPLIFIER
LNA, 15dB Gain, Very Low Current
DESCRIPTION
The ZAMP003 is an ultra low current low noise amplifier
designed for L band and IF applications. Although the
ZAMP003 has been designed primarily for DBS
applications the ZAMP003 is capable of extending to
frequencies of 2.5GHz so it has a good fit with various
applications. An additional benefit of the ZAMP003 is it’s
rising gain characteristic, this has been designed to
counteract the gain losses found at the higher frequencies.
The ZAMP003 has been optimized for input and output
impedance’s of 50 ohms. The ZAMP003 complements the
buffer amplifiers in the ZAMP range to give a low current
high performance solution. Packaged in a small SC70-6
with the minimum number of external bias components
required it is the ideal solution for space and current limited
applications.
SC70-6
FEATURES
•
L and IF frequency band
•
Low current consumption 6.8mA typical
•
Gain 14.8dB typical
•
Rising gain
•
IP3 5.8dBm @ 1GHz
•
4.5 to 5.5V Supply Voltage
•
Unconditionally stable
•
SC70-6 SMD package
CONNECTION DIAGRAM
Top View
GND 1
GND 2
INPUT 3
6 OUTPUT
5 GND
4 V
CC
APPLICATIONS
•
Satellite LNB receivers
•
Set-top boxes
•
TV tuners
•
SMR (Special Mobile Radio)
•
RLAN/WLAN
•
General purpose
ZAMP003H6TA
ZAMP003H6TC
ORDERING INFORMATION
DEVICE
REEL
SIZE
(inches)
7
13”
QUANTITY
PER REEL
3000 units
10000 units
DEVICE
MARKING
ZP03
ZP03
PROVISIONAL ISSUE A - MARCH 2003
1
SEMICONDUCTORS
ZAMP003
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
Supply Current
Operating Temperature
Storage Temperature
7V
30mA
-40 to 85°C
-50 to 125°C
ELECTRICAL CHARACTERISTICS
Test Conditions (unless otherwise stated): VCC = 5V, Tamb = 25°C, Zo = 50 .
SYMBOL
F
O
V
CC
I
CC
Gp
PARAMETER
Operating Frequency
Supply Voltage
Supply Current
Power Gain
F = 950
F = 1550 MHz
F = 2150 MHz
NF
Noise Figure
F = 950
F = 1550 MHz
F = 2150 MHz
IP3
3rd Order Intercept Point
F = 950 MHz
F = 1550 MHz
F = 2150 MHz
P1dB
RL
IN
RL
OUT
Risol
1dB Gain Compression
Input Return Loss
F = 950 to 2150 MHz
F = 950
F = 2150 MHz
Output Return Loss
F = 950
F = 2150 MHz
Reverse Isolation
F = 950 MHz
F = 2150 MHz
K
Stability factor
F = 950 MHz
F = 2150 MHz
-7.5
4.5
14
CONDITIONS
MIN
800
4.5
5
6.8
14.8
14.8
15.1
5.5
6.5
7.5
5.8
4.5
4
-6.5
14
14
13
21
26
27
1.8
2.1
15.8
TYP.
MAX
2500
5.5
8
UNITS
MHz
V
mA
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dB
dB
dB
dB
dB
dB
PROVISIONAL ISSUE A - MARCH 2003
SEMICONDUCTORS
2
ZAMP003
TYPICAL CHARACTERISTICS
Test Conditions (unless otherwise stated): V
CC
= 5V, T
amb
= 25°C, Zo = 50 .
PROVISIONAL ISSUE A - MARCH 2003
3
SEMICONDUCTORS
ZAMP003
TEST CIRCUIT
Vcc
C4
100nF
X7R
C3
100pF
NPO
4
J1
C1
3
100pF
NPO
IC1
6
C2
100pF
NPO
J2
1
2
5
ZAMP003
TEST CIRCUIT COMPONENTS LIST
Circuit Ref.
C1,C2,C3
C4
IC1
Description
Chip ceramic capacitor
Chip ceramic capacitor
ZAMP003
Value
100 pF
100 nF
Type
Murata GRH708 series, size 0805
X7R, size 0805
Wideband Amplifier, SC70-6
PROVISIONAL ISSUE A - MARCH 2003
SEMICONDUCTORS
4
ZAMP003
TEST CIRCUIT LAYOUT
Note: For ZAMP003, L1 and C5 are not fitted.
APPLICATION NOTES
The ZAMP003 is a medium power wideband amplifier
which is designed for low power applications. The
ZAMP003 provides both a 50 Ohm input and output
impedance and thus requires no additional matching
components. The input and output signal connections
each require a DC blocking capacitor (C1 and C2). A
suitable value for these capacitors is around 100pF for the
950MHz to 2150MHz frequency range. For other
frequency ranges the value of the capacitor should be such
that its reactance at the lowest operating frequency is small
when compared to 50 ohms. Supply de-coupling is also
recommended and should take the form of a suitable
100pF capacitor, C3, for the 950MHz to 2150MHz
frequency range. The 100pF capacitor should be mounted
as close to the Vcc pin of the amplifier as is physically
possible. An additional low frequency de-coupling
capacitor, C4, with a value around 100nF (for the 950MHz
to 2150MHz range) is also advised.
An example layout for a test board for the series can be
seen above. This was designed for an FR4 board 1 x 1 inch,
0.016 inch thick with a copper thickness of 35 microns.
Edge mounted SMA connectors were used for the RF
signals. The inductor is not required for the ZAMP003.
PROVISIONAL ISSUE A - MARCH 2003
5
SEMICONDUCTORS
京公网安备 11010802033920号
EEWORLD
