HMC474SC70 / 474SC70E
v00.0607
SiGe HBT GAIN BLOCK MMIC AMPLIFIER, DC - 6 GHz
Typical Applications
Features
Gain: 15 dB P1dB Output Power: +8 dBm Output IP3: +20 dBm Cascadable 50 Ohm I/Os Single Supply: +3V to +10V Industry Standard SC70 Package
9
DRIVER & GAIN BLOCK AMPLIFIERS - SMT
The HMC474SC70(E) is an ideal for: • Cellular / PCS / 3G • WiBro / WiMAX / 4G • Fixed Wireless & WLAN • CATV, Cable Modem & DBS • Microwave Radio & Test Equipment
Functional Diagram
General Description
The HMC474SC70(E) is a general purpose SiGe Heterojunction Bipolar Transistor (HBT) Gain Block MMIC SMT amplifier covering DC to 6 GHz. This industry standard SC70 packaged amplifier can be used as a cascadable 50 Ohm RF/IF gain stage with up to +8 dBm output power. The HMC474SC70(E) offers 15 dB of gain with a +20 dBm output IP3 at 850 MHz while requiring only 25 mA from a single positive supply as low as +3V. 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.
Electrical Specifi cations, Vs= 5V, Rbias= 110 Ohm, TA = +25° C
Parameter Gain Gain Variation Over Temperature Input Return Loss Output Return Loss Reverse Isolation 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) Note: Data taken with broadband bias tee on device output. DC - 2.0 GHz 2.0 - 4.0 GHz 4.0 - 6.0 GHz DC - 6 GHz DC - 5 GHz 5.0 - 6.0 GHz DC - 5 GHz 5.0 - 6.0 GHz DC - 6 GHz 0.5 - 4.0 GHz 5.0 - 6.0 GHz DC - 5 GHz 5.0 - 6.0 GHz DC - 5 GHz 5.0 - 6.0 GHz 5 3 Min. 12 10 7 Typ. 15 13 10 0.01 15 14 15 12 17 8 6 20 18 3 3.9 25 33 0.015 Max. Units dB dB dB dB/ °C dB dB dB dB dB dBm dBm dBm dBm dB dB mA
9 - 66
F or 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
HMC474SC70 / 474SC70E
v00.0607
SiGe HBT GAIN BLOCK MMIC AMPLIFIER, DC - 6 GHz
Broadband Gain & Return Loss
20 15 10 RESPONSE (dB)
Gain vs. Temperature
20 18 16
9
+25 C +85 C -40 C
0 -5 -10 -15 -20 -25 0 1 2 3 4
12 10 8 6 4 2 0
S21 S11 S22
5
6
7
8
0
1
2
3
4
5
6
FREQUENCY (GHz)
FREQUENCY (GHz)
Input Return Loss vs. Temperature
0 -5 RETURN LOSS (dB) -10 -15 -20 -25 -30 0 1 2 3 4 5 6 FREQUENCY (GHz)
+25 C +85 C -40 C
Output Return Loss vs. Temperature
0 -5 RETURN LOSS (dB) -10 -15 -20 -25 -30 0 1 2 3 4 5 6 FREQUENCY (GHz)
+25 C +85 C -40 C
Reverse Isolation vs. Temperature
0 REVERSE ISOLATION (dB)
Noise Figure vs. Temperature
8 7
+25 C +85 C -40 C
-5
+25 C +85 C -40 C
NOISE FIGURE (dB)
6 5 4 3 2 1
-10
-15
-20
-25 0 1 2 3 4 5 6 FREQUENCY (GHz)
0 0 1 2 3 4 5 6 FREQUENCY (GHz)
F or 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
9 - 67
DRIVER & GAIN BLOCK AMPLIFIERS - SMT
GAIN (dB)
5
14
HMC474SC70 / 474SC70E
v00.0607
SiGe HBT GAIN BLOCK MMIC AMPLIFIER, DC - 6 GHz
9
DRIVER & GAIN BLOCK AMPLIFIERS - SMT
P1dB vs. Temperature
16 14 12 P1dB (dBm)
Psat vs. Temperature
16 14 12 Psat (dBm) 10 8 6 4 2 0
+25 C +85 C -40 C
10 8 6 4 2 0 0 1 2 3 4 5 6 FREQUENCY (GHz)
+25 C +85 C -40 C
0
1
2
3
4
5
6
FREQUENCY (GHz)
Output IP3 vs. Temperature
26 24 22 IP3 (dBm) 20 18 16 14 12 10 0 1 2 3 4 5 6 FREQUENCY (GHz)
+25 C +85 C -40 C
Gain, Power & OIP3 vs. Supply Voltage for Rs= 110 Ohms @ 850 MHz
Gain (dB), P1dB (dBm), Psat (dBm), OIP3 (dBm) 22 20 18 16 14 12 10 8 6 4 2 0 4.75 5 Vs (Vdc)
Gain P1dB Psat OIP3
5.25
Icc vs. Vcc Over Temperature for Fixed Vs= 5V, RBIAS= 110 Ohms
28 27 26 +25 C Icc (mA) 25 24 23 22 21 20 2 2.1 2.2 2.3 Vcc (V) 2.4 2.5 2.6 -40 C +85 C
9 - 68
F or 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
HMC474SC70 / 474SC70E
v00.0607
SiGe HBT GAIN BLOCK MMIC AMPLIFIER, DC - 6 GHz
Absolute Maximum Ratings
Collector Bias Voltage (Vcc) Collector Bias Current (Icc) RF Input Power (RFIN)(Vcc = +2.4 Vdc) Junction Temperature Continuous Pdiss (T = 85 °C) (derate 4.3 mW/°C above 85 °C) Thermal Resistance (junction to lead) Storage Temperature Operating Temperature ESD Sensitivity (HBM) +6.0 Vdc 35 mA +5 dBm 150 °C 0.280 W 232 °C/W -65 to +150 °C -40 to +85 °C Class 1B
ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS
9
DRIVER & GAIN BLOCK AMPLIFIERS - SMT
9 - 69
Outline Drawing
NOTES: 1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED PLASTIC SILICA AND SILICON IMPREGNATED. 2. LEAD MATERIAL: COPPER ALLOY 3. LEAD PLATING: Sn/Pb SOLDER 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.
Package Information
Part Number HMC474SC70 HMC474SC70E Package Body Material Low Stress Injection Molded Plastic RoHS-compliant Low Stress Injection Molded Plastic Lead Finish Sn/Pb Solder 100% matte Sn MSL Rating MSL1 MSL1
[1]
Package Marking 474 474
[2]
[1] Max peak reflow temperature of 235 °C [2] Max peak reflow temperature of 260 °C
F or 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
HMC474SC70 / 474SC70E
v00.0607
SiGe HBT GAIN BLOCK MMIC AMPLIFIER, DC - 6 GHz
Pin Descriptions
9
DRIVER & GAIN BLOCK AMPLIFIERS - SMT
Pin Number 1, 2, 4, 5
Function GND
Description These pins must be connected to RF/DC ground.
Interface Schematic
3
RFIN
This pin is DC coupled. An off chip DC blocking capacitor is required.
6
RFOUT
RF output and DC Bias (Vcc) for the output stage.
Application Circuit
Recommended Bias Resistor Values for Icc= 25 mA, Rbias= (Vs - Vcc) / Icc
Supply Voltage (Vs) RBIAS VALUE RBIAS POWER RATING 3V 30 Ω 1/8 W 5V 110 Ω 1/8 W 6V 150 Ω 1/4 W 8V 240 Ω 1/2 W 10V 300 Ω 1/2 W
Note: 1. External blocking capacitors are required on RFIN and RFOUT. 2. RBIAS provides DC bias stability over temperature.
Recommended Component Values for Key Application Frequencies
Frequency (MHz) Component 50 L1 C1, C2 270 nH 0.01 μF 900 56 nH 100 pF 1900 18 nH 100 pF 2200 18 nH 100 pF 2400 15 nH 100 pF 3500 8.2 nH 100 pF 5200 6.8 nH 100 pF 5500 3.3 nH 100 pF
9 - 70
F or 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
HMC474SC70 / 474SC70E
v00.0607
SiGe HBT GAIN BLOCK MMIC AMPLIFIER, DC - 6 GHz
Evaluation PCB
9
DRIVER & GAIN BLOCK AMPLIFIERS - SMT
9 - 71
List of Materials for Evaluation PCB 117596 [1]
Item J1 - J2 J3 - J4 C1 - C3 C4 C5 R1 L1 U1 PCB [2] Description PCB Mount SMA Connector DC Pin 100 pF Capacitor, 0402 Pkg. 1000 pF Capacitor, 0603 Pkg. 2.2 μF Capacitor, Tantalum 110 Ohm Resistor, 1210 Pkg. 18 nH Inductor, 0603 Pkg. HMC474SC70(E) 117360 Evaluation PCB
The circuit board used in the final application should use RF circuit design techniques. Signal lines should have 50 ohm impedance while the package ground leads 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.
[1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350
F or 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