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For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
AMPLIFIERS - DRIVER & GAIN BLOCK - SMT
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HMC475ST89 / 475ST89E
InGaP HBT GAIN BLOCK
MMIC AMPLIFIER, DC - 4.5 GHz
v02.0710
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.
Typical Applications
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
• IF and RF Applications
Electrical Speci cations, Vs= 8.0 V, Rbias= 9.1 Ohm, TA = +25° C
Parameter Min. Typ. Max. Units
Gain
DC - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
3.0 - 4.0 GHz
4.0 - 4.5 GHz
19.5
17.5
14.5
11.5
9
21.5
19.5
16.5
13.5
12
dB
dB
dB
dB
dB
Gain Variation Over Temperature DC - 4.5 GHz 0.008 0.012 dB/ °C
Input Return Loss
DC - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 4.5 GHz
11
14
14
dB
dB
dB
Output Return Loss DC - 1.0 GHz
1.0 - 4.5 GHz
13
10
dB
dB
Reverse Isolation DC - 4.5 GHz 25 dB
Output Power for 1 dB Compression (P1dB)
DC - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
3.0 - 4.0 GHz
4.0 - 4.5 GHz
19.0
18.0
17.5
13.0
11.0
22.0
21.0
19.5
16.0
14.0
dBm
dBm
dBm
dBm
dBm
Output Third Order Intercept (IP3)
(Pout= 0 dBm per tone, 1 MHz spacing)
DC - 2.5 GHz
2.5 - 4.5 GHz
35
30
dBm
dBm
Noise Figure DC - 3.0 GHz
3.0 - 4.5 GHz
3.5
3.8
dB
dB
Supply Current (Icq) 110 135 mA
Note: Data taken with broadband bias tee on device output.
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
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
AMPLIFIERS - DRIVER & GAIN BLOCK - SMT
8
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Output Return Loss vs. Temperature
Broadband Gain & Return Loss Gain vs. Temperature
Reverse Isolation vs. Temperature
Input Return Loss vs. Temperature
Noise Figure vs. Temperature
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
0123456
S21
S11
S22
RESPONSE (dB)
FREQUENCY (GHz)
0
2
4
6
8
10
12
14
16
18
20
22
24
26
012345
+25C
+85C
-40C
GAIN (dB)
FREQUENCY (GHz)
-35
-30
-25
-20
-15
-10
-5
0
012345
+25C
+85C
-40C
RETURN LOSS (dB)
FREQUENCY (GHz)
-25
-20
-15
-10
-5
0
012345
+25C
+85C
-40C
RETURN LOSS (dB)
FREQUENCY (GHz)
-40
-30
-20
-10
0
012345
+25C
+85C
-40C
REVERSE ISOLATION (dB)
FREQUENCY (GHz)
0
2
4
6
8
10
012345
+25C
+85C
-40C
NOISE FIGURE (dB)
FREQUENCY (GHz)
HMC475ST89 / 475ST89E
v02.0710 InGaP HBT GAIN BLOCK
MMIC AMPLIFIER, DC - 4.5 GHz
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
AMPLIFIERS - DRIVER & GAIN BLOCK - SMT
8
8 - 76
Gain, Power & OIP3 vs. Supply Voltage
for Constant Icc= 110 mA @ 850 MHz
P1dB vs. Temperature Psat vs. Temperature
Output IP3 vs. Temperature
Vcc vs. Icc Over Temperature for
Fixed Vs= 8V, RBIAS= 9.1 Ohms
0
4
8
12
16
20
24
28
012345
+25C
+85C
-40C
P1dB (dBm)
FREQUENCY (GHz)
0
4
8
12
16
20
24
28
012345
+25C
+85C
-40C
Psat (dBm)
FREQUENCY (GHz)
HMC475ST89 / 475ST89E
v02.0710
0
6
12
18
24
30
36
42
8 9 10 11 12
Gain
P1dB
Psat
IP3
GAIN (dB), P1dB (dBm), Psat (dBm), IP3 (dBm)
Vs (Vdc)
75
80
85
90
95
100
105
110
115
120
125
130
135
140
6.9 7 7.1 7.2 7.3 7.4 7.5
Icc (mA)
Vcc (Vdc)
+85C
+25C
-40C
15
20
25
30
35
40
45
012345
+25C
+85C
-40C
IP3 (dBm)
FREQUENCY (GHz)
InGaP HBT GAIN BLOCK
MMIC AMPLIFIER, DC - 4.5 GHz
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
AMPLIFIERS - DRIVER & GAIN BLOCK - SMT
8
8 - 77
Outline Drawing
Absolute Maximum Ratings
Collector Bias Voltage (Vcc) +8.0 Vdc
RF Input Power (RFIN)(Vcc = +7.2 Vdc) +17 dBm
Junction Temperature 150 °C
Continuous Pdiss (T = 85 °C)
(derate 16.86 mW/°C above 85 °C) 1.09 W
Thermal Resistance
(junction to lead) 59.3 °C/W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC475ST89 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] H475
XXXX
HMC475ST89E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H475
XXXX
[1] Max peak re ow temperature of 235 °C
[2] Max peak re ow temperature of 260 °C
[3] 4-Digit lot number XXXX
Package Information
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
HMC475ST89 / 475ST89E
v02.0710 InGaP HBT GAIN BLOCK
MMIC AMPLIFIER, DC - 4.5 GHz
NOTES:
1. PACKAGE BODY MATERIAL:
MOLDING COMPOUND MP-180S OR EQUIVALENT.
2. LEAD MATERIAL: Cu w/ Ag SPOT PLATING.
3. LEAD PLATING: 100% MATTE TIN.
4. DIMENSIONS ARE IN INCHES [MILLIMETERS]
5. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
7. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
AMPLIFIERS - DRIVER & GAIN BLOCK - SMT
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Application Circuit
Recommended Component Values for Key Application Frequencies
Component
Frequency (MHz)
50 900 1900 2200 2400 3500 4500
L1 270 nH 56 nH 18 nH 18 nH 15 nH 8.2 nH 6.8 nH
C1, C2 0.01 μF 100 pF 100 pF 100 pF 100 pF 100 pF 100 pF
Note:
1. External blocking capacitors are required on
RFIN and RFOUT.
2. RBIAS provides DC bias stability over temperature.
Recommended Bias Resistor Values for
Icc= 110 mA, Rbias= (Vs - Vcc) / Icc
Supply Voltage (Vs) 8V 9V 10V 12V
RBIAS VALUE 9.1 Ω 18 Ω 27 Ω 43 Ω
RBIAS POWER RATING ¼ W½ W½ W 1 W
Pin Descriptions
Pin Number Function Description Interface Schematic
1IN This pin is DC coupled.
An off chip DC blocking capacitor is required.
3 OUT RF output and DC Bias (Vcc) for the output stage.
2, 4 GND These pins and package bottom must be connected to RF/
DC ground.
HMC475ST89 / 475ST89E
v02.0710 InGaP HBT GAIN BLOCK
MMIC AMPLIFIER, DC - 4.5 GHz
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
AMPLIFIERS - DRIVER & GAIN BLOCK - SMT
8
8 - 79
Evaluation PCB
The circuit board used in the nal application
should use RF circuit design techniques. Signal
lines should have 50 Ohm impedance while the
package ground leads and package bottom should
be connected directly to the ground plane similar to
that shown. A sufficient number of via holes should
be used to connect the top and bottom ground
planes. The evaluation board should be mounted
to an appropriate heat sink. The evaluation circuit
board shown is available from Hittite upon request.
List of Materials for Evaluation PCB 116092 [1]
Item Description
J1 - J2 PCB Mount SMA Connector
J3 - J4 DC Pin
C1, C2 Capacitor, 0402 Pkg.
C3 100 pF Capacitor, 0402 Pkg.
C4 1000 pF Capacitor, 0603 Pkg.
C5 2.2 μF Capacitor, Tantalum
R1 Resistor, 1206 Pkg.
L1 Inductor, 0603 Pkg.
U1 HMC475ST89 / HMC475ST89E
PCB [2] 107368 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
HMC475ST89 / 475ST89E
v02.0710 InGaP HBT GAIN BLOCK
MMIC AMPLIFIER, DC - 4.5 GHz
