Hittite HMC742LP5E 0.5 db lsb gaas mmic 6-bit digital variable gain amplifier, 70 mhz - 4 ghz Datasheet

HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
Typical Applications
Features
The HMC742LP5E is ideal for:
-19.5 to 12 dB Gain Control in 0.5 dB Steps
• Cellular/3G Infrastructure
Power-up State Selection
• WiBro / WiMAX / 4G
High Output IP3: +39 dBm
• Microwave Radio & VSAT
TTL/CMOS Compatible
Serial, Parallel, or latched Parallel Control
• Test Equipment and Sensors
±0.25 dB Typical Gain Step Error
• IF & RF Applications
Single +5V Supply
32 Lead 5x5mm SMT Package: 25mm2
Functional Diagram
General Description
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
13
13 - 108
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.
Electrical Specifi cations, TA = +25° C, 50 Ohm System Vdd = +5V, Vs= +5V
Min.
Typ.
Max.
Min.
Typ.
Max.
Units
Parameter
70 - 1000
Gain (Maximum Gain State)
Gain Control Range
Input Return Loss
Output Return Loss
Gain Accuracy: (Referenced to Maximum Gain State)
All Gain States
500 - 4000
MHz
12
9
dB
31.5
31.5
dB
15
12
dB
14
10
dB
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
Output Power for 1 dB Compression
dB
21.5
22
dBm
Output Third Order Intercept Point
(Two-Tone Output Power= 12 dBm Each Tone)
40
39
dBm
Noise Figure (Max Gain State)
4
4.5
dB
70
170
70
170
ns
ns
Switching Characteristics
tRISE, tFall (10 / 90% RF)
tON, tOFF (Latch Enable to 10 / 90% RF)
Supply Current (Amplifier)
130
150
190
130
150
190
mA
Supply Current (Controller) Idd
1.0
2.0
3.0
1.0
2.0
3.0
mA
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 Gain Setting
Maximum Gain vs. Temperature
(Referenced to Maximum Gain State)
17
0
RELATIVE GAIN (dB)
15
GAIN (dB)
13
11
+25 C
+85 C
-40 C
9
-10
16dB
8dB
-20
31.5dB
-30
7
-40
0
0.2
0.4
0.6
0.8
0
1
0.2
0.4
FREQUENCY (GHz)
Input Return Loss
0.8
1
13
Output Return Loss
0
-10
RETURN LOSS (dB)
0
RETURN LOSS (dB)
0.6
FREQUENCY (GHz)
0dB
-20
31.5dB
-30
-10
31.5dB
-20
0dB
-30
16dB
-40
-40
0
0.2
0.4
0.6
0.8
1
0
0.2
0.4
FREQUENCY (GHz)
0.8
1
Bit Error vs. Relative Gain
Bit Error vs. Frequency
4
3
3
0.5, 0.7, 0.9GHz
2
BIT ERROR (dB)
31.5dB
BIT ERROR (dB)
0.6
FREQUENCY (GHz)
2
16dB
1
0
1
0
-1
0.1, 0.3GHz
-2
-1
0
0.2
0.4
0.6
FREQUENCY (GHz)
0.8
1
0
8
16
24
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
32
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
5
13 - 109
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
Step Error vs. Frequency
1
2, 4dB
10
8, 16dB
31.5dB
STEP ERROR (dB)
RELATIVE PHASE (DEG)
20
0
0, 0.5, 1, 2, 4dB
-10
0.5
0
-0.5
0.5, 8, 16dB
-20
-1
0
0.2
0.6
0.8
1
0
0.2
FREQUENCY (GHz)
0.4
0.6
0.8
1
0.8
1
0.8
1
FREQUENCY (GHz)
Noise Figure vs. Temperature [1]
Output P1dB vs. Temperature
8
24
6
P1dB (dBm)
NOISE FIGURE (dB)
23
4
2
22
21
+25 C
+85 C
-40 C
20
+25 C
+85 C
-40 C
19
0
18
0
0.2
0.4
0.6
0.8
1
0
0.2
FREQUENCY (GHz)
0.6
Output IP3 vs. Temperature
48
24
44
IP3 (dBm)
28
20
+25 C
+85 C
-40 C
16
0.4
FREQUENCY (GHz)
Psat vs. Temperature
Psat (dBm)
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
13
0.4
40
+25 C
+85 C
-40 C
36
12
32
0
0.2
0.4
0.6
FREQUENCY (GHz)
0.8
1
0
0.2
0.4
0.6
FREQUENCY (GHz)
[1] Max Gain State
13 - 110
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 Gain Setting
(Referenced to Maximum Gain State)
16
0
12
-10
RELATIVE GAIN(dB)
8
+25 C
+85 C
-40 C
4
0
0.5
8dB
-20
16dB
31.5dB
-30
-40
1
1.5
2
2.5
3
3.5
0.5
4
1
1.5
2
FREQUENCY (GHz)
2.5
3
3.5
4
13
FREQUENCY (GHz)
Input Return Loss
Output Return Loss
0
0
0dB
-10
RETURN LOSS (dB)
RETURN LOSS (dB)
0dB
-20
-30
16dB
31.5dB
-10
31.5dB
-20
-30
4dB
-40
0.5
1
1.5
2
2.5
3
3.5
-40
0.5
4
1
1.5
FREQUENCY (GHz)
2
2.5
3
3.5
4
24
28
32
FREQUENCY (GHz)
Bit Error vs. Relative Gain
Bit Error vs. Frequency
4
3
3
BIT ERROR (dB)
BIT ERROR (dB)
2
2
31.5dB
8dB
1
0
1.0, 4.0GHz
1
0
-1
1dB
-2
2.0, 3.0GHz
-1
0.5
1
1.5
2
2.5
FREQUENCY (GHz)
3
3.5
4
0
4
8
12
16
20
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
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
GAIN(dB)
Maximum Gain vs. Frequency
13 - 111
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
Step Error vs. Frequency
1
30
16dB
4, 8dB
20
8dB
STEP ERROR (dB)
RELATIVE PHASE (DEG)
31.5dB
10
0
-10
8dB
0.5
0
0.5, 31.5dB
-0.5
16dB
-20
-30
-1
0.5
1
1.5
2.5
3
3.5
0.5
4
1
1.5
28
6
23
4
+25 C
+85 C
-40 C
2
1
1.5
2
2.5
2.5
3
3.5
4
3
3.5
4
3
3.5
4
Output P1dB vs. Temperature
8
P1dB (dBm)
NOISE FIGURE (dB)
Noise Figure vs. Frequency [1]
0
0.5
2
FREQUENCY (GHz)
FREQUENCY (GHz)
3
3.5
18
+25 C
+85 C
-40 C
13
8
0.5
4
1
1.5
FREQUENCY (GHz)
2
2.5
FREQUENCY (GHz)
Psat vs. Temperature
Output IP3 vs. Temperature
50
33
45
28
40
IP3 (dBm)
Psat (dBm)
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
13
2
23
18
35
30
+25 C
+85 C
-40 C
13
8
0.5
1
1.5
2
2.5
FREQUENCY (GHz)
+25 C
+85 C
-40 C
25
3
3.5
4
20
0.5
1
1.5
2
2.5
FREQUENCY (GHz)
[1] Max Gain State
13 - 112
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
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.
Parameter
Typ.
Min. serial period, tSCK
100 ns
Control set-up time, tCS
20 ns
Control hold-time, tCH
20 ns
LE setup-time, tLN
10 ns
Min. LE pulse width, tLEW
10 ns
Min LE pulse spacing, tLES
630 ns
Serial clock hold-time from LE, tCKN
10 ns
Hold Time, tPH.
0 ns
Latch Enable Minimum Width, tLEN
10 ns
Setup Time, tPS
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
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
13
13 - 113
HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
PUP Truth Table
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.
Power-On Sequence
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
13
13 - 114
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
Absolute Maximum Ratings
RF Input Power at Max Gain
[1]
Bias Voltage (Vdd)
5.6V
Collector Bias Voltage (Vcc)
5.5V
Channel Temperature
175 °C
Continuous Pdiss (T = 85 °C)
(derate 13.3 mW/°C above 85 °C) [2]
1.2 W
Thermal Resistance [3]
75.6 °C/W
-65 to +150 °C
-40 to +85 °C
[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]
Bias Voltage
Vdd (V)
PUP2
Gain Relative to Maximum
Gain
0
0
0
-31.5
0
1
0
-24
0
0
1
-16
0
1
1
Insertion Loss
1
X
X
0 to -31.5 dB
Note: The logic state of D0 - D5 determines the powerup state per truth table shown below when LE is high
at power-up.
Control Voltage Input
17.5 dBm (T = +85 °C)
-0.5 to Vdd +0.5V
Operating Temperature
PUP1
Truth Table
Digital Inputs (Reset, Shift Clock,
Latch Enable & Serial Input)
Storage Temperature
LE
Idd (Typ.) (mA)
+5.0
2
Vs (V)
Is (mA)
+5.0
150
Gain
Relative to
Maximum
Gain
D5
D4
D3
D2
D1
D0
High
High
High
High
High
High
0 dB
High
High
High
High
High
Low
-0.5 dB
High
High
High
High
Low
High
-1 dB
High
High
High
Low
High
High
-2 dB
High
High
Low
High
High
High
-4 dB
High
Low
High
High
High
High
-8 dB
Low
High
High
High
High
High
-16 dB
Low
Low
Low
Low
Low
Low
-31.5 dB
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
Vdd = +3V
Vdd = +5V
Low
0 to 0.5V @ <1 μA
0 to 0.8V @ <1 μA
High
2 to 3V @ <1 μA
2 to 5V @ <1 μA
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
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
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
Package Body Material
Lead Finish
HMC742LP5E
RoHS-compliant Low Stress Injection Molded Plastic
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
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
13
13 - 115
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
1
AMPIN
This pin is DC coupled.
An off chip DC blocking capacitor is required.
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.
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.
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.
11
N/C
No connection
14
SEROUT
Serial input data delayed by 6 clock cycles.
15, 16
PUP2, PUP1
18 - 23
D5, D4, D3,
D2, D1, D0
24
P/S
25
CLK
26
SERIN
27
LE
17
Vdd
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
13
13 - 116
Interface Schematic
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
HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
Application Circuit
Components for Selected Frequencies
Tuned Frequency
70 - 1000 MHz
500 - 4000 MHz
Evaluation PCB
124694 [1]
124695 [1]
C1 ,C6, C8 (pF)
10000
330
C3, C4 (pF)
1000
100
C2, C5 (pF)
1000
N/A
C9 (pF)
1000
100
C12 (pF)
5600
1000
L1 (nH)
560
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
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
13
13 - 117
HMC742LP5E
v03.0709
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHz
Evaluation PCB
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
13
13 - 118
List of Materials for Evaluation PCB [2]
Item
Description
J1 - J2
PCB Mount SMA Connectors
J3
4 Pin DC Connector
J4, J5
14 Pin DC Connector
C1 - C6, C8, C9
Capacitor, 0402 Pkg. [2]
C7
100pF Capacitor. 0402 Pkg.
C11
1000 pF Capacitor, 0402 Pkg.
C12
Capacitor, 0603 Pkg. [2]
C14
2.2 μF Capacitor, CASE A Pkg.
R1
0 Ohm Resistor, 1206 Pkg.
L1
Inductor, 0603 Pkg. [2]
U1
HMC742LP5E Variable Gain Amplifier
PCB [1]
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.
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:
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
13
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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