v01.0107
HMC475ST89 / 475ST89E
InGaP HBT GAIN BLOCK
MMIC AMPLIFIER, DC - 4.5 GHz
5
AMPLIFIERS - SMT
Typical Appli cations
The HMC475ST89 / HMC475ST89E is an ideal RF/IF
gain block & LO or PA driver:
• Cellular / PCS / 3G
• Fixed Wireless & WLAN
• CATV, Cable Modem & DBS
• Microwave Radio & Test Equipment
Features
P1dB Output Power: +22 dBm
Gain: 21.5 dB
Output IP3: +35 dBm
Cascadable 50 Ohm I/Os
Single Supply: +8V to +12V
Industry Standard SOT89 Package
• IF and RF Applications
Functional Diagram General Description
The HMC475ST89(E) is a InGaP Heterojunction
Bipolar Transistor (HBT) Gain Block MMIC SMT
ampli er covering DC to 4.5 GHz. Packaged in an
industry standard SOT89, the ampli er can be used
as a cascadable 50 Ohm RF/IF gain stage as well as
a LO or PA driver with up to +25 dBm output power.
The HMC475ST89(E) offers 21.5 dB of gain and +35
dBm output IP3 at 850 MHz while requiring only 110
mA from a single positive supply. The Darlington
topology results in reduced sensitivity to normal
process variations and excellent gain stability over
temperature while requiring a minimal number of
external bias components.
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Electrical Specifications, Vs= 8.0 V, Rbias= 9.1 Ohm, T
Parameter Min. Typ. Max. Units
DC - 1.0 GHz
Gain
Gain Variation Over Temperature DC - 4.5 GHz 0.008 0.012 dB/ °C
Input Return Loss
Output Return Loss
Reverse Isolation DC - 4.5 GHz 25 dB
Output Power for 1 dB Compression (P1dB)
Output Third Order Intercept (IP3)
(Pout= 0 dBm per tone, 1 MHz spacing)
Noise Figure
Supply Current (Icq) 110 135 mA
Note: Data taken with broadband bias tee on device output.
1.0 - 2.0 GHz
2.0 - 3.0 GHz
3.0 - 4.0 GHz
4.0 - 4.5 GHz
DC - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 4.5 GHz
DC - 1.0 GHz
1.0 - 4.5 GHz
DC - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
3.0 - 4.0 GHz
4.0 - 4.5 GHz
DC - 2.5 GHz
2.5 - 4.5 GHz
DC - 3.0 GHz
3.0 - 4.5 GHz
= +25° C
A
19.5
17.5
14.5
11.5
9
19.0
18.0
17.5
13.0
11.0
21.5
19.5
16.5
13.5
12
11
14
14
13
10
22.0
21.0
19.5
16.0
14.0
35
30
3.5
3.8
dBm
dBm
dBm
dBm
dBm
dBm
dBm
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250 -3373
Order On-line at www.hittite.com
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
v01.0107
HMC475ST89 / 475ST89E
InGaP HBT GAIN BLOCK
MMIC AMPLIFIER, DC - 4.5 GHz
Broadband Gain & Return Loss Gain vs. Temperature
25
20
15
10
5
0
-5
-10
-15
RESPONSE (dB)
-20
-25
-30
-35
-40
0123456
S21
S11
S22
FREQUENCY (GHz)
Input Return Loss vs. Temperature
0
-5
-10
-15
-20
-25
INPUT RETURN LOSS (dB)
-30
-35
012345
FREQUENCY (GHz)
+25C
+85C
-40C
26
24
22
20
18
16
14
12
GAIN (dB)
10
8
6
4
2
0
012345
+25C
+85C
-40C
FREQUENCY (GHz)
Output Return Loss vs. Temperature
0
-5
-10
-15
-20
OUTPUT RETURN LOSS (dB)
-25
012345
FREQUENCY (GHz)
+25C
+85C
-40C
5
AMPLIFIERS - SMT
Reverse Isolation vs. Temperature
0
-5
-10
-15
-20
-25
-30
REVERSE ISOLATION (dB)
-35
-40
012345
FREQUENCY (GHz)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250 -3373
+25C
+85C
-40C
Order On-line at www.hittite.com
Noise Figure vs. Temperature
10
9
8
7
6
5
4
3
NOISE FIGURE (dB)
2
1
0
012345
FREQUENCY (GHz)
+25C
+85C
-40C
5 - 433