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HMC625LP5 / 625LP5E
v01.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 6 GHz
Typical Applications
The HMC625LP5(E) is ideal for: * Cellular/3G Infrastructure * WiBro / WiMAX / 4G * Microwave Radio & VSAT * Test Equipment and Sensors * IF & RF Applications
Features
-13.5 to +18 Gain Control in 0.5 dB Steps High Output IP3: +33 dBm TTL/CMOS Compatible Serial or Parallel Control 0.25 dB Typical Gain Step Error Single +5V Supply 32 Lead 5x5mm SMT Package: 25mm2
Functional Diagram
General Description
The HMC625LP5(E) is a digitally controlled variable gain amplifier which operates from DC to 6 GHz, and can be programmed to provide anywhere from 13.5 dB attenuation, to 18 dB of gain, in 0.5 dB steps. The HMC625LP5(E) delivers noise figure of 6 dB in its maximum gain state, with output IP3 of up to +33 dBm in any state. The dual mode control interface is CMOS/ TTL compatible, and accepts either a three wire serial input or a 6 bit parallel word. The HMC625LP5(E) also features a user selectable power up state and a serial output port for cascading other Hittite serial controlled components. The HMC625LP5(E) is housed in a RoHS compliant 5x5 mm QFN leadless package, and requires no external matching components.
14
VARIABLE GAIN AMPLIFIERS - SMT
Electrical Specifi cations, TA = +25 C, Vdd= +5V, Vs= +5V
Parameter Gain (Maximum Gain State) Gain Control Range Input Return Loss Output Return Loss Gain Accuracy: (Referenced to Maximum Gain State) All Gain States Output Power for 1dB Compression Output Third Order Intercept Point (Two-Tone Input Power= 0 dBm Each Tone) Noise Figure Supply Current (Idd) DC - 6.0 GHz DC - 6.0 GHz DC - 0.8 GHz 0.8 - 6.0 GHz DC - 3.0 GHz 3.0 - 6.0 GHz DC - 6.0 GHz DC - 6.0 GHz DC - 6.0 GHz Frequency DC - 3.0 GHz 3.0 - 6.0 GHz Min. 13 5 Typ. 18 13 31.5 15 12 (0.10 + 5% of Gain Setting) Max. (0.30 + 3% of Gain Setting) Max. 16 13 19 16 33 6 88 Max. Units dB dB dB dB dB dB dB dBm dBm dB mA
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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
HMC625LP5 / 625LP5E
v01.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 6 GHz
Normalized Attenuation [2]
Maximum Gain vs. Frequency
25 20 15 10 GAIN (dB) 5 0 -5 -10 -15 -20 -25 0 1 2 3 4 5 6 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 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 FREQUENCY (GHz)
[2]
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VARIABLE GAIN AMPLIFIERS - SMT
14 - 3
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 1 2 3 4 5 6 FREQUENCY (GHz)
0
1
2
3
4
5
6
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 1 2 3 4 5 6 FREQUENCY (GHz)
0
1
2
3
4
5
6
FREQUENCY (GHz)
[1] Tested with broadband bias tee on RF ports and C1 = 10,000pF [2] C1, C6 and C8 = 100pF, L1 = 24nH
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
HMC625LP5 / 625LP5E
v01.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 6 GHz
Bit Error vs. Frequency [2]
(Only Major States are Shown)
2 1.5 1 BIT ERROR (dB) 0.5 0 -0.5 -1 -0.6 -1.5 -2 0 1 2 3 4 5 6 FREQUENCY (GHz) -0.8 -1 0 4 8 12 16 20 24 28 32 ATTENUATION STATE (dB) BIT ERROR (dB) 0.4 0.2 0 -0.2 -0.4
100MHz, 3GHz, 4GHz
Bit Error vs. Attenuation State [2]
1 0.8 0.6
500MHz, 1GHz, 2GHz
14
VARIABLE GAIN AMPLIFIERS - SMT
80 60 RELATIVE PHASE (deg)
Normal Relative Phase vs. Frequency [2]
(Only Major States are Shown)
Step Error vs. Frequency [2]
(Only Major States are Shown)
1 0.8 0.6 STEP ERROR (dB) 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8
31.5 dB 16 dB
40
8 dB
20 0 -20 -40 0 1 2 3 4 5 6 FREQUENCY (GHz)
0.5 - 4 dB
-1 0 1 2 3 4 5 6 FREQUENCY (GHz)
[1] Tested with broadband bias tee on RF ports and C1 = 10,000pF [2] C1, C6 and C8 = 100pF, L1 = 24nF
14 - 4
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
HMC625LP5 / 625LP5E
v01.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 6 GHz
Serial Mode
The serial mode is enabled then P/S is set to high. Data is entered LSB first and after the 6th shift clock cycle the LE (Latch Enable) is pulsed High and then Low. See timing diagram below for reference.
Timing Diagram
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VARIABLE GAIN AMPLIFIERS - SMT
14 - 5
Timing
Parameter Serial Input Setup Time Hold Time from Serial Input to Shift Clock Setup Time from Shift Clock to Latch Enable Propagation Delay Setup Time for New Data Symbol ts th tlsup tpd tsnd Vdd = +5V (Typ.) 20 20 40 10 10 Units ns ns ns ns ns
Timing Diagram (Latched Parallel Mode)
Parallel Mode (Direct Parallel Mode & Latched Parallel Mode)
Direct Parallel Mode - The attenuation state is changed by the Control Voltage Inputs directly. The LE (Latch Enable) must be at a logic high to control the attenuator in this manner. Latched Parallel Mode - The attenuation state is selected using the Control Voltage Inputs and set while the LE is in the Low state. The attenuator will not change state while LE is Low. Once all Control Voltage Inputs are at the desired states the LE is pulsed. See timing diagram below for reference.
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
HMC625LP5 / 625LP5E
v01.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 6 GHz
Power-Up States
Using the Parallel PUP truth table the attenuator can be turned on at a specific attenuation state. By using the PUP1 and PUP2 line four different attenuation states can be selected. It can also be used in the Direct Parallel Mode using the Control Voltage Inputs to select attenuation values.
Parallel PUP Truth Table
P/S 0 0 0 0 0 LE 0 0 0 0 1 PUP2 0 1 0 1 X PUP1 0 0 1 1 X Gain Relative to Maximum Gain -31.5 -24 -16 -8 -0.5 to -31.5 dB
Note: Power-Up with LE= 1 provides normal parallel operation with D0 - D5, and PUP1 and PUP2 are not active.
14
VARIABLE GAIN AMPLIFIERS - SMT
Absolute Maximum Ratings
RF Input Power [1] Digital Inputs (Reset, Shift Clock, Latch Enable & Serial Input) Bias Voltage (Vdd) Collector Bias Voltage (Vcc) Channel Temperature Continuous Pdiss (T = 85 C) (derate 8.5 mW/C above 85 C) [1] Thermal Resistance Storage Temperature Operating Temperature [1] At max gain settling 11.5 dBm (T = 85 C) -1.5V to (Vdd +1.5V) Vdc 5.6 Vdc 5.5 Vdc 150 C 0.549 W 118 C/W -65 to +150 C -40 to +85 C D5 High High High High High High Low Low D4 High High High High High Low High Low
Truth Table
Control Voltage Input D3 High High High High Low High High Low D2 High High High Low High High High Low D1 High High Low High High High High Low D0 High Low High High High High High Low Gain Relative to Maximum Gain 0 dB -0.5 dB -1 dB -2 dB -4 dB -8 dB -16 dB -31.5 dB
Any combination of the above states will provide a reduction in gain approximately equal to the sum of the bits selected.
Bias Voltage
Vdd (Vdc) 5V Vs (V) 5V Idd (Typ.) (mA) 2 Is (Typ.) (mA) 86
TTL/CMOS Control Voltage
State Low High Vdd= +3V or +5V 0 to 0.8V 2.0V to Vdd
ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS
14 - 6
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
HMC625LP5 / 625LP5E
v01.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 6 GHz
Outline Drawing
14
VARIABLE GAIN AMPLIFIERS - SMT
14 - 7
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 HMC625LP5 HMC625LP5E 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] H542 XXXX H542 XXXX
[2]
[1] Max peak reflow temperature of 235 C [2] Max peak reflow temperature of 260 C [3] 4-Digit lot number XXXX
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
HMC625LP5 / 625LP5E
v01.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 6 GHz
Pin Descriptions
Pin Number Function Description This pin is DC coupled. An off chip DC blocking capacitor is required. Interface Schematic
1
AMPIN
29
AMPOUT
RF output and DC bias (Vcc) for the output stage of the amplifier.
2, 3, 11, 13, 28, 30 - 32
GND
These pins and package bottom must be connected to RF/DC ground.
14
4, 12
ATTIN, ATTOUT
These pins are DC coupled and matched to 50 Ohms. Blocking capacitors are required. Select value based on lowest frequency of operation.
VARIABLE GAIN AMPLIFIERS - SMT
5 - 10
ACG1 - ACG6
External capacitors to ground is required. Select value for lowest frequency of operation. Place capacitor as close to pins as possible.
14 15, 16 18 - 23
SERIN PUP2, PUP1 D5, D4, D3, D2, D1, D0 P/S CLK
24 25
See truth table, control voltage table and timing diagram.
27
LE
17
Vdd
Supply Voltage
26
SEROUT
Serial input data delayed by 6 clock cycles.
14 - 8
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
HMC625LP5 / 625LP5E
v01.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 6 GHz
Application Circuit
14
VARIABLE GAIN AMPLIFIERS - SMT
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
14 - 9
HMC625LP5 / 625LP5E
v01.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 6 GHz
Evaluation PCB
14
VARIABLE GAIN AMPLIFIERS - SMT
List of Materials for Evaluation PCB 116960 [1]
Item J1 - J2 J3 J4, J5 C1 - C9 C11 - C12 C14 R1 L1 U1 PCB [2] Description PCB Mount SMA Connector 1 Pin DC Connector 14 Pin DC Connector 100 pF Capacitor, 0402 Pkg. 1000 pF Capacitor, 0402 Pkg. 2.2 F Capacitor, CASEA Pkg. 1.8 Ohm Resistor, 1206 Pkg. 24 nH Inductor, 0603 Pkg. HMC625LP5(E) Variable Gain Amplifier 116958 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
14 - 10
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
HMC625LP5 / 625LP5E
v01.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 6 GHz
Notes:
14
VARIABLE GAIN AMPLIFIERS - SMT
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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