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HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
Typical Applications
The HMC742LP5E is ideal for: * Cellular/3G Infrastructure * WiBro / WiMAX / 4G * Microwave Radio & VSAT * Test Equipment and Sensors * IF & RF Applications
Features
-19.5 to 12 dB Gain Control in 0.5 dB Steps Power-up State Selection High Output IP3: +39 dBm TTL/CMOS Compatible Serial, Parallel, or latched Parallel Control 0.25 dB Typical Gain Step Error Single +5V Supply 32 Lead 5x5mm SMT Package: 25mm2
Functional Diagram
General Description
The HMC742LP5E is a digitally controlled variable gain amplifier which operates from 70 MHz to 4 GHz, and can be programmed to provide from -19.5 dB attenuation, to 12 dB of gain, in 0.5 dB steps. The HMC742LP5E delivers noise figure of 4 dB in its maximum gain state, with output IP3 of up to +39 dBm in any state. The dual mode gain control interface accepts either a three-wire serial input or a 6 bit parallel word. The HMC742LP5E also features a user selectable power up state and a serial output for cascading other serially controlled Hittite components. The HMC742LP5E is housed in an RoHS compliant 5x5 mm QFN leadless package, and requires minimal external components.
13
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
Electrical Specifi cations, TA = +25 C, 50 Ohm System Vdd = +5V, Vs= +5V
Min. Parameter 70 - 1000 Gain (Maximum Gain State) Gain Control Range Input Return Loss Output Return Loss 12 31.5 15 14 70 MHz - 350 MHz (0.3 + 4% of relative gain setting) Max (0.3 + 4% of relative gain setting) Max 350 MHz - 1000 MHz (0.3 + 6% of relative gain setting) Max 21.5 40 4 70 170 130 1.0 150 2.0 190 3.0 130 1.0 22 39 4.5 70 170 150 2.0 190 3.0 dB 500 - 4000 9 31.5 12 10 MHz dB dB dB dB Typ. Max. Min. Typ. Max. Units
Gain Accuracy: (Referenced to Maximum Gain State) All Gain States
Output Power for 1 dB Compression Output Third Order Intercept Point (Two-Tone Output Power= 12 dBm Each Tone) Noise Figure (Max Gain State) Switching Characteristics tRISE, tFall (10 / 90% RF)
dBm dBm dB ns ns mA mA
tON, tOFF (Latch Enable to 10 / 90% RF) Supply Current (Amplifier) Supply Current (Controller) Idd
13 - 108
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
HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
70 to 1000 MHz Tuning Maximum Gain vs. Temperature
17 15 RELATIVE GAIN (dB) -10 8dB 13 GAIN (dB) 11 9 7 5 0 0.2 0.4 0.6 0.8 1 FREQUENCY (GHz) -40 0 0.2 0.4 0.6 0.8 1 FREQUENCY (GHz)
+25 C +85 C -40 C
Relative Gain Setting
(Referenced to Maximum Gain State)
0
16dB
-20 31.5dB -30
13
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
13 - 109
Input Return Loss
0
Output Return Loss
0
RETURN LOSS (dB)
0dB
RETURN LOSS (dB)
-10
-10 31.5dB
-20
-20 0dB -30
31.5dB
-30
16dB
-40 0 0.2 0.4 0.6 0.8 1 FREQUENCY (GHz) -40 0 0.2 0.4 0.6 0.8 1 FREQUENCY (GHz)
Bit Error vs. Frequency
4 3 31.5dB BIT ERROR (dB) 2 1 0 -1 16dB
Bit Error vs. Relative Gain
3 0.5, 0.7, 0.9GHz 2 BIT ERROR (dB)
1
0
0.1, 0.3GHz -2 0 0.2 0.4 0.6 0.8 1 FREQUENCY (GHz) -1 0 8 16 24 32 RELATIVE GAIN SETTING (dB)
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
HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
70 to 1000 MHz Tuning Relative Phase vs. Frequency
20
Step Error vs. Frequency
1 2, 4dB STEP ERROR (dB)
RELATIVE PHASE (DEG)
10
31.5dB
8, 16dB
0.5
0
0
-10
0, 0.5, 1, 2, 4dB
-0.5 0.5, 8, 16dB
-20 0 0.2 0.4 0.6 0.8 1
-1 0 0.2 0.4 0.6 0.8 1 FREQUENCY (GHz) FREQUENCY (GHz)
13
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
8 NOISE FIGURE (dB) 6
Noise Figure vs. Temperature [1]
Output P1dB vs. Temperature
24 23 22 21 20 19 18
+25 C +85 C -40 C
4
2
+25 C +85 C -40 C
0 0 0.2 0.4 0.6 0.8 1 FREQUENCY (GHz)
P1dB (dBm)
0
0.2
0.4
0.6
0.8
1
FREQUENCY (GHz)
Psat vs. Temperature
28
Output IP3 vs. Temperature
48
24 Psat (dBm) IP3 (dBm)
+25 C +85 C -40 C
44
20
40
16
36
+25 C +85 C -40 C
12 0 0.2 0.4 0.6 0.8 1 FREQUENCY (GHz)
32 0 0.2 0.4 0.6 0.8 1 FREQUENCY (GHz)
[1] Max Gain State 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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HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
0.5 to 4.0 GHz Tuning Relative Gain Setting Maximum Gain vs. Frequency
16
(Referenced to Maximum Gain State)
0
RELATIVE GAIN(dB)
12 GAIN(dB)
-10 8dB
8
-20 16dB 31.5dB -30
4
+25 C +85 C -40 C
0 0.5
-40 1 1.5 2 2.5 3 3.5 4 0.5 1 1.5 2 2.5 3 3.5 4 FREQUENCY (GHz) FREQUENCY (GHz)
13
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
13 - 111
Input Return Loss
0 0dB RETURN LOSS (dB)
Output Return Loss
0 0dB
RETURN LOSS (dB)
-10
-10 31.5dB -20
-20
-30
31.5dB 4dB
16dB
-30
-40 0.5
1
1.5
2
2.5
3
3.5
4
-40 0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
FREQUENCY (GHz)
Bit Error vs. Frequency
4 3
Bit Error vs. Relative Gain
3
2 BIT ERROR (dB) 2 31.5dB 1 0 -1 -2 0.5 1 1.5 2 2.5 3 3.5 4 FREQUENCY (GHz) 8dB BIT ERROR (dB) 1.0, 4.0GHz 1
0 1dB -1 0 4 2.0, 3.0GHz 8 12 16 20 24 28 32
RELATIVE GAIN STATE (dB)
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
HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
0.5 to 4.0 GHz Tuning Relative Phase vs. Frequency
30 31.5dB RELATIVE PHASE (DEG) 20 10 0 -10 -20 -30 0.5 1 1.5 2 2.5 3 3.5 4 -1 0.5 1 1.5 2 2.5 3 3.5 4 FREQUENCY (GHz) FREQUENCY (GHz) STEP ERROR (dB) 8dB 0.5 16dB
Step Error vs. Frequency
1 4, 8dB
0
8dB
-0.5
0.5, 31.5dB 16dB
13
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
8 NOISE FIGURE (dB) 6
Noise Figure vs. Frequency [1]
Output P1dB vs. Temperature
28
23 P1dB (dBm)
4
18
2
+25 C +85 C -40 C
13
+25 C +85 C -40 C
0 0.5
1
1.5
2
2.5
3
3.5
4
8 0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
FREQUENCY (GHz)
Psat vs. Temperature
33
Output IP3 vs. Temperature
50 45 40
28 Psat (dBm)
23
IP3 (dBm)
35 30
18
+25 C +85 C -40 C
13
25 20 0.5
+25 C +85 C -40 C
8 0.5
1
1.5
2
2.5
3
3.5
4
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
FREQUENCY (GHz)
[1] Max Gain State 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
13 - 112
HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
Serial Control Interface
The HMC742LP5E contains a 3-wire SPI compatible digital interface (SERIN, CLK, LE). The serial control interrface is activated when P/S is kept high. The 6-bit serial word must be loaded MSB first. The positive-edge sensitive CLK and LE requires clean transitions. If mechanical switches are used, sufficient debouncing should be provided. When LE is high, 6-bit data in the serial input register is transferred to the attenuator. When LE is high CLK is masked to prevent data transition during output loading. When P/S is low, 3-wire SPI interface inputs (SERIN, CLK, LE) are disabled and the input register is loaded with parallel digital inputs (D0-D5). When LE is high, 6-bit parallel data changes the state of the part per truth table. For all modes of operations, the DVGA state will stay constant while LE is kept low.
13
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
13 - 113
Parameter Min. serial period, tSCK Control set-up time, tCS Control hold-time, tCH LE setup-time, tLN Min. LE pulse width, tLEW Min LE pulse spacing, tLES Serial clock hold-time from LE, tCKN Hold Time, tPH. Latch Enable Minimum Width, tLEN Setup Time, tPS
Typ. 100 ns 20 ns 20 ns 10 ns 10 ns 630 ns 10 ns 0 ns 10 ns 2 ns
Timing Diagram (Latched Parallel Mode)
Parallel Mode
(Direct Parallel Mode & Latched Parallel Mode)
Note: The parallel mode is enabled when P/S is set to low. Direct Parallel Mode - The attenuation state is changed by the control voltage inputs D0-D5 directly. The LE (Latch Enable) must be at a logic high at all times to control the attenuator in this manner. Latched Parallel Mode - The attenuation state is selected using the control voltage inputs D0-D5 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 above 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
HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
Power-Up States
If LE is set to logic LOW at power-up, the logic state of PUP1 and PUP2 determines the power-up state of the part per PUP truth table. If the LE is set to logic HIGH at power-up, the logic state of D0-D5 determines the power-up state of the part per truth table. The DVGA latches in the desired power-up state approximately 200 ms after power-up.
PUP Truth Table
LE 0 0 0 0 1 PUP1 0 1 0 1 X PUP2 0 0 1 1 X Gain Relative to Maximum Gain -31.5 -24 -16 Insertion Loss 0 to -31.5 dB
Power-On Sequence
13
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
The ideal power-up sequence is: GND, Vdd, digital inputs, RF inputs. The relative order of the digital inputs are not important as long as they are powered after Vdd / GND
Note: The logic state of D0 - D5 determines the powerup state per truth table shown below when LE is high at power-up.
Absolute Maximum Ratings
RF Input Power at Max Gain
[1]
Truth Table
Control Voltage Input D5 High High High High High High Low Low D4 High High High High High Low High Low 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
17.5 dBm (T = +85 C) -0.5 to Vdd +0.5V 5.6V 5.5V 175 C 1.2 W 75.6 C/W -65 to +150 C -40 to +85 C
Digital Inputs (Reset, Shift Clock, Latch Enable & Serial Input) Bias Voltage (Vdd) Collector Bias Voltage (Vcc) Channel Temperature Continuous Pdiss (T = 85 C) (derate 13.3 mW/C above 85 C) [2] Thermal Resistance [3] Storage Temperature Operating Temperature
[1] The maximum RF input power increases by the same amount the gain is reduced. The maximum input power at any state is no more than 28 dBm. [2] This value does not include the RF power dissipation in the attenuator. The loss in the attenuator depends on the state of the attenuator. The loss in the attenuator should be included to determine the total power dissipation in the part. [3] This value does not include the RF power dissipation in the attenuator. The thermal resistance at different states of the attenuator can be determined based on note [2]
Any combination of the above states will provide a reduction in gain approximately equal to the sum of the bits selected.
Control Voltage Table
State Low High Vdd = +3V 0 to 0.5V @ <1 A 2 to 3V @ <1 A Vdd = +5V 0 to 0.8V @ <1 A 2 to 5V @ <1 A
Bias Voltage
Vdd (V) +5.0 Vs (V) +5.0 Idd (Typ.) (mA) 2 Is (mA) 150
ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS
13 - 114
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
HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
Outline Drawing
13
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 HMC742LP5E Package Body Material RoHS-compliant Low Stress Injection Molded Plastic Lead Finish 100% matte Sn MSL Rating MSL1
[2]
Package Marking [1] H742 XXXX
[1] 4-Digit lot number XXXX [2] Max peak reflow temperature of 260 C
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
13 - 115
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 70 MHz - 4 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, 13, 28, 30 - 32
GND
These pins and package bottom must be connected to RF/DC ground.
13
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 - DIGITAL - 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. No connection
11
N/C
14
SEROUT
Serial input data delayed by 6 clock cycles.
15, 16 18 - 23
PUP2, PUP1 D5, D4, D3, D2, D1, D0 P/S CLK SERIN
24 25 26
27
LE
17
Vdd
Supply Voltage
13 - 116
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
HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
Application Circuit
13
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
13 - 117
Components for Selected Frequencies
Tuned Frequency Evaluation PCB C1 ,C6, C8 (pF) C3, C4 (pF) C2, C5 (pF) C9 (pF) C12 (pF) L1 (nH) 70 - 1000 MHz 124694 [1] 10000 1000 1000 1000 5600 560 500 - 4000 MHz 124695 [1] 330 100 N/A 100 1000 47
[1] Reference this number when ordering complete evaluation PCB
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
HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
Evaluation PCB
13
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
List of Materials for Evaluation PCB [2]
Item J1 - J2 J3 J4, J5 C1 - C6, C8, C9 C7 C11 C12 C14 R1 L1 U1 PCB [1] Description PCB Mount SMA Connectors 4 Pin DC Connector 14 Pin DC Connector Capacitor, 0402 Pkg. [2] 100pF Capacitor. 0402 Pkg. 1000 pF Capacitor, 0402 Pkg. Capacitor, 0603 Pkg. [2] 2.2 F Capacitor, CASE A Pkg. 0 Ohm Resistor, 1206 Pkg. Inductor, 0603 Pkg. [2] HMC742LP5E 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] Circuit Board Material: Arlon 25FR, FR4 [2] Please reference Components for Selected Frequencies Table shown on previous page.
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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
HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
Notes:
13
VARIABLE GAIN AMPLIFIERS - DIGITAL - 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
13 - 119

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