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HMC626LP5 / 626LP5E
v02.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 1 GHz
Typical Applications
The HMC626LP5(E) is ideal for: * IF & RF Applications * Cellular/3G Infrastructure * WiBro / WiMAX / 4G * Microwave Radio & VSAT * Test Equipment and Sensors
Features
+8.5 dB to +40 dB Gain Control in 0.5 dB Steps High Output IP3: +36 dBm 0.25 dB Typical Gain Step Error Single +5V Supply 32 Lead 5x5mm SMT Package: 25mm2
Functional Diagram
General Description
The HMC626LP5(E) is a digitally controlled variable gain amplifier which operates from DC to 1 GHz, and can be programmed to provide anywhere from 8.5 dB, to 40 dB of gain, in 0.5 dB steps. The HMC626LP5(E) delivers noise figure of 4 dB in its maximum gain state, with output IP3 of up to +36 dBm in any state. This single positive control line per bit digital attenuator incorporates off chip AC ground capacitors for near DC operation, making it suitable for a wide variety of RF and IF applications. The HMC626LP5(E) is housed in a RoHS compliant 5x5 mm QFN leadless package, and requires no external matching components.
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VARIABLE GAIN AMPLIFIERS - SMT
Electrical Specifi cations, TA = +25 C, Vdd = Vs= +5V, Vctl= 0/ +5V
Parameter Gain (Maximum Gain State) Gain Control Range Input Return Loss Output Return Loss Attenuation Accuracy: (Referenced to Maximum Gain State) All Attenuation States Output Power for 1 dB Compression Output Third Order Intercept Point (Two-Tone Input Power= 0 dBm Each Tone) Noise Figure Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) Supply Current DC - 1.0 GHz 130 140 176 ns ns mA 0.5 - 1.0 GHz DC - 1.0 GHz DC - 1.0 GHz DC - 1.0 GHz Frequency DC - 0.5 GHz 0.5 - 1.0 GHz Min. 37 30 Typ. 42.5 35.0 31.5 20 15 (0.15 + 3% of Atten. Setting) Max. 20 36 4 Max. Units dB dB dB dB dB dB dBm dBm dB
DC - 1.0 GHz
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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
HMC626LP5 / 626LP5E
v02.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 1 GHz
Normalized Attenuation
Gain vs. Frequency [1]
50 45 40 35 GAIN (dB) 30 25 20 15 10 5 0 0 0.3 0.5 0.8 1 1.3 1.5 FREQUENCY (GHz)
+25 C +85 C -40 C
(Only Major States are Shown)
0 NORMALIZED ATTENUATION (dB)
[1]
-5 -10 -15 -20 -25 -30 -35 0 0.3 0.5 0.8 1 1.3 1.5 FREQUENCY (GHz)
[2]
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VARIABLE GAIN AMPLIFIERS - SMT
14 - 13
Input Return Loss [1]
(Only Major States are Shown)
0 -5 RETURN LOSS (dB)
Output Return Loss [1]
(Only Major States are Shown)
0 -5 RETURN LOSS (dB) -10 -15 -20 -25 -30 -35 -40
-10 -15 -20 -25 -30 -35 -40 0 0.3 0.5 0.8 1 1.3 1.5 FREQUENCY (GHz)
0
0.3
0.5
0.8
1
1.3
1.5
FREQUENCY (GHz)
Input Return Loss [2]
(Only Major States are Shown)
0 -5 RETURN LOSS (dB)
Output Return Loss [2]
(Only Major States are Shown)
0 -5 RETURN LOSS (dB) -10 -15 -20 -25 -30 -35 -40
-10 -15 -20 -25 -30 -35 -40 0 0.3 0.5 0.8 1 1.3 1.5 FREQUENCY (GHz)
0
0.3
0.5
0.8
1
1.3
1.5
FREQUENCY (GHz)
[1] Tested with broadband bias tee on output J2, C7, C8 = 10,000pF ; L1 = 680nH [2] Data taken on eval board as described in data sheet
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
HMC626LP5 / 626LP5E
v02.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 1 GHz
Bit Error vs. Frequency [2]
(Only Major States are Shown)
2 1.5 1 BIT ERROR (dB) 0.5 0 -0.5 -1 -1.5 -2 0 0.3 0.5 0.8 1 1.3 1.5 FREQUENCY (GHz) BIT ERROR (dB)
Bit Error vs. Attenuation State [2]
2 1.5 1 0.5 0 -0.5 -1 -1.5 -2 0 4 8 12 16 20 24 28 32 ATTENUATION STATE (dB)
14
VARIABLE GAIN AMPLIFIERS - SMT
60 RELATIVE PHASE (deg) 40
8 dB
Normal Relative Phase vs. Frequency [2]
(Only Major States are Shown)
Step Error vs. Frequency [2]
(Only Major States are Shown)
1
31.5 dB 16 dB
0.8 0.6 STEP ERROR (dB) 1.3 1.5 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8
20
0
0.5 - 4 dB
-20
-40 0 0.3 0.5 0.8 1 FREQUENCY (GHz)
-1 0 0.3 0.5 0.8 1 1.3 1.5 FREQUENCY (GHz)
[1] Tested with broadband bias tee on output J2, C7, C8 = 10,000pF ; L1 = 680nH [2] Data taken on eval board as described in data sheet
14 - 14
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
HMC626LP5 / 626LP5E
v02.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 1 GHz
Truth Table
Bias Voltage & Current
Vdd (V) +4.5 +5.0 +5.5 Vs (V) +5.0 Idd (Typ.) (mA) 4.7
Control Voltage Input V6 V5 V4 V3 V2 V1
5.0 5.3 Is (mA) 176 High High High High High High High High Low High Low High High High Low High High Low High High Low High High High Low High Low High High High High Low Low High High High High High Low High High High High High High
Gain Relative to Maximum Gain Reference 0 dB -0.5 dB -1 dB -2 dB -4 dB -8 dB -16 dB -31.5 dB
Control Voltage
State Low High Note: Vdd = +5V Bias Condition 0 to +0.8 Vdc @ -5 uA Typ. + 2.0 to + 5.0 Vdc @ 40 uA Typ.
High Low Low
Any combination of the above states will provide a reduction in gain approximately equal to the sum of the bits selected.
14
VARIABLE GAIN AMPLIFIERS - SMT
14 - 15
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
HMC626LP5 / 626LP5E
v02.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 1 GHz
Absolute Maximum Ratings
RF Input Power [1] Bias Voltage (Vdd) Collector Bias Voltage (Vcc) Channel/Junction Temperature Continuous Pdiss (T = 85 C) (derate 7.7 mW/C above 85 C) [1] Thermal Resistance Storage Temperature Operating Temperature [1] At max gain settling 12.5 dBm (T = +85 C) +5.5 Vdc 5.5 Vdc 150 C 0.593 C/W 110 C/W -65 to +150 C -40 to +85 C
ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS
14
VARIABLE GAIN AMPLIFIERS - SMT
Outline Drawing
NOTES: 1. LEADFRAME MATERIAL: COPPER ALLOY 2. DIMENSIONS ARE IN INCHES [MILLIMETERS] 3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE. 4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM. PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM. 5. PACKAGE WARP SHALL NOT EXCEED 0.05mm. 6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. 7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED LAND PATTERN.
Package Information
Part Number HMC626LP5 HMC626LP5E 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 [3] H626 XXXX H626 XXXX
[2]
[1] Max peak reflow temperature of 235 C [2] Max peak reflow temperature of 260 C [3] 4-Digit lot number XXXX
14 - 16
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
HMC626LP5 / 626LP5E
v02.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 1 GHz
Pin Descriptions
Pin Number 1, 5, 9, 14, 16, 23, 24, 31 Function Description These pins may be connected to RF/DC ground. Performance will not be affected. This pin is DC coupled. An off chip DC blocking capacitor is required. Amplifier bias provided via external bias tee as shown in application circuit. Interface Schematic
N/C
2, 20
AMPIN1, AMPIN2
4, 22
AMPOUT1, AMPOUT2
RF output and DC bias (Vcc) for the output stage of the amplifier.
3, 7, 18, 21
GND
These pins and package bottom must be connected to RF/DC ground.
14
VARIABLE GAIN AMPLIFIERS - SMT
14 - 17
6, 19
ATTIN, ATTOUT
These pins are DC coupled and matched to 50 Ohms. Blocking capacitors are required. Select value based on lowest frequency of operation.
8, 10, 11, 12, 13, 15, 17
ACG1, ACG2, ACG3, ACG4, ACG5, ACG6, ACG7
External capacitors to ground is required. Select value for lowest frequency of operation. Place capacitor as close to pins as possible.
25 - 30
V1 - V6
See truth table, control voltage table and timing diagram.
32
Vdd
Supply voltage
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
HMC626LP5 / 626LP5E
v02.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 1 GHz
Application Circuit
14
VARIABLE GAIN AMPLIFIERS - SMT
14 - 18
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
Top View
HMC626LP5 / 626LP5E
v02.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 1 GHz
Evaluation PCB
14
VARIABLE GAIN AMPLIFIERS - SMT
14 - 19
List of Materials for Evaluation PCB 117355 [1]
Item J1 - J2 J3 J4 - J9 C1, C2, C9, C10 C3, C4 C5 - C8 C11 - C13 C14, C15 R1, R2 L1, L2 U1 PCB [2] Description PCB Mount SMA Connector 12 Pin DC Connector DC Pin 820 pF Capacitor, 0402 Pkg. 100 pF Capacitor, 0402 Pkg. 330 pF Capacitor, 0402 Pkg. 1000 pF Capacitor, 0402 Pkg. 2.2 F Capacitor, CASEA Pkg. 1.8 Ohm Resistor, 0603 Pkg. 110 nH Inductor, 0603 Pkg. HMC626LP5(E) Variable Gain Amplifier 117354 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 and exposed paddle 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 circuit board shown is available from Hittite upon request.
[1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350
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

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