HITTITE HMC628LP4

HMC628LP4 / 628LP4E
v07.0410
BiCMOS MMIC 5-Bit DIGITAL
VARIABLE GAIN AMPLIFIER, 50 - 800 MHz
Typical Applications
Features
The HMC628LP4(E) is ideal for:
TTL/CMOS compatible serial, parallel or latched
parallel control interface
• Cellular/3G Infrastructure
High Output IP3: +35 dBm (At all gain settings)
• WiBro / WiMAX / 4G
Wide Gain Control Range: 23 dB
• Microwave Radio & VSAT
Power-up State Selection
• Test Equipment and Sensors
24 Lead 4x4 mm SMT Package: 16 mm2
• IF & RF Applications
Excellent State & Step Accuracy (±0.05 dB)
General Description
Functional Diagram
The HMC628LP4(E) is a digitally controlled variable
gain amplifier which operates from 50 to 800 MHz,
and can be programmed to provide anywhere from
8 dB attenuation, to 15 dB of gain, in 1.0 dB steps.
The HMC628LP4(E) delivers noise figure of 5 dB in its
maximum gain state, with output IP3 of up to +35 dBm
in any state. The dual mode control interface is CMOS/
TTL compatible, and accepts either a three wire serial
input or a 5 bit parallel word. The HMC628LP4(E) also
features a user selectable power up state and a serial
output port for cascading other Hittite serial controlled
components. The HMC628LP4(E) is housed in a
RoHS compliant 4x4 mm QFN leadless package, and
is available in three evaluation board configurations,
depending on the application frequency.
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12
Electrical Specifi cations, TA = +25° C, 50 Ohm System, Vdd= +5V
50 - 250
Min.
Gain (Maximum Gain State)
13
Gain Control Range
Typ.
Max.
15
Min.
12.8
23
Typ.
500 - 800
Max.
14
Min.
Typ.
MHz
10.5
Max.
Units
13
dB
23
23
dB
Input Return Loss
12
10
10
dB
Output Return Loss
10
12.5
9
dB
Gain Accuracy: (Referenced to Maximum Gain State)
± (0.1 + 1% of Gain
Setting )Max
± (0.4 + 2% of Gain
Setting )Max
± (0.4 + 4% of Gain
Setting )Max
dB
Output Power for 1dB Compression
19
16
14
18
dBm
Output Third Order Intercept Point
35 [1]
33 [2]
32 [3]
dBm
Output Second Order Intercept Point
46 [1]
54 [2]
55 [3]
dBm
46
69
55
75
62
83
dBc
dBc
Harmonics
2nd
3rd
19.5
Switching Characteristics
tRISE, tFALL (10 / 90% RF)
tON, tOFF ( Latch Enable to 10 / 90% RF)
18
11
18
Noise Figure
5
Supply Current (Idd)
65
[1] Two-Tone Output Power @ 5 dBm
12 - 34
250 - 500
Parameter
[2] Two-Tone Output Power @ 2 dBm
ns
ns
6
85
65
6.5
85
65
dB
85
mA
[3] Two-Tone Output Power @ 0 dBm
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
HMC628LP4 / 628LP4E
v07.0410
BiCMOS MMIC 5-Bit DIGITAL
VARIABLE GAIN AMPLIFIER, 50 - 800 MHz
50 to 250 MHz Tuning
Normalized Attenuation
(Only Major States are Shown)
Maximum Gain vs. Frequency
0
20
15
GAIN (dB)
10
5
0
-5
-10
+25 C
+85 C
-40 C
-15
-20
-25
0.05
0.1
0.15
0.2
-5
-10
-15
-20
-25
-30
-35
0.05
0.25
0.1
FREQUENCY (GHz)
0.15
Output Return Loss
(Only Major States are Shown)
(Only Major States are Shown)
0
0
-5
-5
-10
-10
RETURN LOSS (dB)
RETURN LOSS (dB)
Input Return Loss
-15
-20
-25
-30
-35
-40
0.05
12
-20
-25
-30
-35
0.1
0.15
0.2
-40
0.05
0.25
0.1
40
55
35
50
IP3 (dBm)
60
30
40
20
35
FREQUENCY (MHz)
0.25
0.2
0.25
45
25
0.15
0.2
Output IP2 vs. Frequency
45
0.1
0.15
FREQUENCY (GHz)
Output IP3 vs. Frequency
IP3 (dBm)
0.25
-15
FREQUENCY (GHz)
15
0.05
0.2
FREQUENCY (GHz)
0.2
0.25
30
0.05
0.1
0.15
FREQUENCY (MHz)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
NORMALIZED ATTENUATION (dB)
25
12 - 35
HMC628LP4 / 628LP4E
v07.0410
BiCMOS MMIC 5-Bit DIGITAL
VARIABLE GAIN AMPLIFIER, 50 - 800 MHz
50 to 250 MHz Tuning
Bit Error vs. Frequency
Bit Error vs. Attenuation State
(Only Major States are Shown)
2
1
1.5
0.8
(50, 100, 150, 200, 250) MHz
0.6
BIT ERROR (dB)
BIT ERROR (dB)
1
0.5
0
-0.5
0.4
0.2
0
-0.2
-0.4
-1
-0.6
-1.5
-2
0.05
12 - 36
-1
0.1
0.15
0.2
0.25
0
4
8
FREQUENCY (GHz)
12
16
20
24
ATTENUATION STATE (dB)
Normal Relative Phase vs. Frequency
Step Error vs. Frequency
(Only Major States are Shown)
(Only Major States are Shown)
30
1
0.6
15
STEP ERROR (dB)
RELATIVE PHASE (deg)
0.8
0
1 - 23 dB
0.4
0.2
0
-0.2
-0.4
-15
-0.6
-0.8
-30
0.05
0.1
0.15
0.2
-1
0.05
0.25
0.1
0.15
0.2
0.25
FREQUENCY (GHz)
FREQUENCY (GHz)
Output IP3 vs. Attenuation @ 150 MHz
Noise Figure vs. Frequency
45
10
9
40
8
7
35
IP3 (dBm)
NOISE FIGURE (dB)
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12
-0.8
6
5
4
30
25
3
2
20
1
0
0.05
15
0.1
0.15
FREQUENCY (GHz)
0.2
0.25
0
5
10
15
20
25
ATTENUATION (dB)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
HMC628LP4 / 628LP4E
v07.0410
BiCMOS MMIC 5-Bit DIGITAL
VARIABLE GAIN AMPLIFIER, 50 - 800 MHz
250 to 500 MHz Tuning
Normalized Attenuation
Maximum Gain vs. Frequency
(Only Major States are Shown)
0
20
15
GAIN (dB)
10
5
0
-5
-10
+25 C
+85 C
-40 C
-15
-20
-25
0.2
0.3
0.4
0.5
-5
-10
-15
-20
-25
-30
-35
0.2
0.6
0.3
0.4
Output Return Loss
(Only Major States are Shown)
(Only Major States are Shown)
0
0
-5
-5
-10
-10
RETURN LOSS (dB)
RETURN LOSS (dB)
Input Return Loss
-15
-20
-25
-30
-35
-40
0.2
0.5
0.6
-20
-25
-30
-35
0.3
0.4
0.5
-40
0.2
0.6
0.3
Output IP2 vs. Frequency
80
40
70
35
60
IP2 (dBm)
45
30
50
25
40
20
30
0.3
0.35
0.4
FREQUENCY (MHz)
0.4
FREQUENCY (GHz)
Output IP3 vs. Frequency
IP3 (dBm)
0.6
-15
FREQUENCY (GHz)
15
0.25
0.5
FREQUENCY (GHz)
FREQUENCY (GHz)
0.45
0.5
20
0.25
0.3
0.35
0.4
0.45
0.5
FREQUENCY (MHz)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
12
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
NORMALIZED ATTENUATION (dB)
25
12 - 37
HMC628LP4 / 628LP4E
v07.0410
BiCMOS MMIC 5-Bit DIGITAL
VARIABLE GAIN AMPLIFIER, 50 - 800 MHz
250 to 500 MHz Tuning
Bit Error vs. Frequency
Bit Error vs. Attenuation State
(Only Major States are Shown)
2
1
1.5
0.8
(250, 300, 350, 400, 450, 500) MHz
0.6
BIT ERROR (dB)
BIT ERROR (dB)
1
0.5
0
-0.5
0.4
0.2
0
-0.2
-0.4
-1
-0.6
-1.5
-0.8
-1
-2
12 - 38
0.3
0.4
0.5
0.6
0
4
8
FREQUENCY (GHz)
12
16
20
24
ATTENUATION STATE (dB)
Normal Relative Phase vs. Frequency
Step Error vs. Frequency
(Only Major States are Shown)
(Only Major States are Shown)
80
1
0.8
0.6
23 dB
40
STEP ERROR (dB)
RELATIVE PHASE (deg)
60
16 dB
8 dB
20
0
0.4
0.2
0
-0.2
-0.4
-0.6
1 - 4 dB
-20
-0.8
-40
0.2
0.3
0.4
0.5
-1
0.2
0.6
0.3
0.4
0.5
0.6
FREQUENCY (GHz)
FREQUENCY (GHz)
Output IP3 vs. Attenuation @ 350 MHz
Noise Figure vs. Frequency
45
10
9
40
8
7
35
IP3 (dBm)
NOISE FIGURE (dB)
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12
0.2
6
5
4
30
25
3
2
20
1
0
0.2
15
0.3
0.4
FREQUENCY (GHz)
0.5
0.6
0
5
10
15
20
25
ATTENUATION (dB)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
HMC628LP4 / 628LP4E
v07.0410
BiCMOS MMIC 5-Bit DIGITAL
VARIABLE GAIN AMPLIFIER, 50 - 800 MHz
500 to 800 MHz Tuning
Normalized Attenuation
Maximum Gain vs. Frequency
(Only Major States are Shown)
0
25
20
-5
RELATIVE PHASE (deg)
15
5
0
-5
-10
+25 C
+85 C
-40 C
-15
-15
-20
-25
-30
-20
-25
0.4
-10
0.5
0.6
0.7
0.8
-35
0.4
0.9
0.5
FREQUENCY (GHz)
0.6
0.7
Output Return Loss
(Only Major States are Shown)
(Only Major States are Shown)
0
0
-5
-5
-10
-10
RETURN LOSS (dB)
RETURN LOSS (dB)
Input Return Loss
-15
-20
-25
-30
-35
-40
0.4
0.8
0.9
-20
-25
-30
-35
0.5
0.6
0.7
0.8
-40
0.4
0.9
0.5
40
70
35
60
IP2 (dBm)
80
30
50
25
40
20
30
0.6
0.65
0.7
Output IP2 vs. Frequency
45
0.55
0.6
FREQUENCY (GHz)
Output IP3 vs. Frequency
IP3 (dBm)
0.9
-15
FREQUENCY (GHz)
15
0.5
0.8
FREQUENCY (GHz)
0.7
FREQUENCY (MHz)
0.75
0.8
20
0.5
0.55
0.6
0.65
0.7
0.75
0.8
FREQUENCY (MHz)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
12
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
GAIN (dB)
10
12 - 39
HMC628LP4 / 628LP4E
v07.0410
BiCMOS MMIC 5-Bit DIGITAL
VARIABLE GAIN AMPLIFIER, 50 - 800 MHz
500 to 800 MHz Tuning
Bit Error vs. Frequency
Bit Error vs. Attenuation State
(Only Major States are Shown)
2
1
1.5
0.8
0.6
700 MHz
BIT ERROR (dB)
BIT ERROR (dB)
1
0.5
0
-0.5
0.4
0.2
0
-0.2
-0.4
-1
800 MHz
-0.6
-1.5
-0.8
-1
-2
12 - 40
0.5
0.6
0.7
0.8
0.9
0
4
8
12
16
Normal Relative Phase vs. Frequency
Step Error vs. Frequency
(Only Major States are Shown)
(Only Major States are Shown)
0
24
1
0.8
-5
16 dB
0.6
STEP ERROR (dB)
RELATIVE PHASE (deg)
20
ATTENUATION STATE (dB)
FREQUENCY (GHz)
-10
-15
-20
-25
0.4
0.2
0
-0.2
-0.4
23 dB
-0.6
-30
-35
0.4
-0.8
0.5
0.6
0.7
0.8
-1
0.4
0.9
0.5
0.6
0.7
0.8
0.9
FREQUENCY (GHz)
FREQUENCY (GHz)
Output IP3 vs. Attenuation @ 650 MHz
Noise Figure vs. Frequency
45
10
9
40
8
7
35
IP3 (dBm)
NOISE FIGURE (dB)
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12
0.4
6
5
4
30
25
3
2
20
1
0
0.4
15
0.5
0.6
FREQUENCY (GHz)
0.7
0.8
0
5
10
15
20
25
ATTENUATION (dB)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
HMC628LP4 / 628LP4E
v07.0410
BiCMOS MMIC 5-Bit DIGITAL
VARIABLE GAIN AMPLIFIER, 50 - 800 MHz
Serial Control Interface
The HMC628LP4(E) contains a 3-wire SPI compatible digital interface (DATA, CLK, LE). It is activated when P/S
is kept high. The 5-bit serial word must be loaded MSB first. The positive-edge sensitive CLK and LE requires
clean transitions. Standard logic families work well. If mechanical switches were used, sufficient debouncing should
be provided. When LE is high, 5-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 (DATA, CLK, LE) are disabled and serial input register is loaded
asynchronously with parallel digital inputs (B0-B4). When Le is high, 5-bit parallel data is transferred to the attenuator.
For all modes of operations, attenuation 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 Set up-time, tLN
10 ns
Min. LE pulse width, tLEW
10 ns
Min LE pulse spacing, tLES
530 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 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 above for reference.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12
12 - 41
HMC628LP4 / 628LP4E
v07.0410
BiCMOS MMIC 5-Bit DIGITAL
VARIABLE GAIN AMPLIFIER, 50 - 800 MHz
Power-Up States
PUP Truth Table
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 B4-B0 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.
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12 - 42
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
RF Output Power
Digital Inputs (B0-B4, Shift Clock,
Latch Enable & Data Input)
PUP2
Gain Relative to
Maximum Gain
0
0
0
Insertion Loss
0
1
0
-8
0
0
1
-16
0
1
1
-23
1
X
X
0 to -23 dB
Truth Table
ATTENUATION
(dB)
B4[1]
B3 [1]
B2
B1
B0
20 dBm
0
0
0
0
0
0
22 dBm
1
0
0
0
0
1
2
0
0
0
1
0
3
0
0
0
1
1
Absolute Maximum Ratings
RF Input Power
PUP1
Note: Power-Up with LE= 1 provides direct parallel operation with
B4-B0.
Power-On Sequence
12
LE
-0.5V to Vdd +0.5V
Bias Voltage (Vdd)
5.6 V
4
0
0
1
0
0
Junction Temperature
125 °C
5
0
0
1
0
1
6
0
0
1
1
0
7
0
0
1
1
1
8
0
1
0
0
0
9
0
1
0
0
1
Continuous Pdiss (T = 85 °C)
(derate 13.5 mW/°C above 85 °C) [1]
0.54 W
Thermal Resistance
(Junction to ground paddle)
74.3 °C/W
Storage Temperature
-65 to +150 °C
10
0
1
0
1
0
Operating Temperature
-40 to +85 °C
11
0
1
0
1
1
12
0
1
1
0
0
13
0
1
1
0
1
14
0
1
1
1
0
Bias Voltage
Vdd (V)
Idd (Typ.) (mA)
5V
65
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
15
0
1
1
1
1
16
1
X
0
0
0
17
1
X
0
0
1
18
1
X
0
1
0
19
1
X
0
1
1
20
1
X
1
0
0
21
1
X
1
0
1
22
1
X
1
1
0
23
1
X
1
1
1
[1] Enabling B4 disables B3, the minimum attenuation is 16 dB
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
HMC628LP4 / 628LP4E
v07.0410
BiCMOS MMIC 5-Bit DIGITAL
VARIABLE GAIN AMPLIFIER, 50 - 800 MHz
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
MSL Rating
HMC628LP4
Low Stress Injection Molded Plastic
Sn/Pb Solder
MSL1
HMC628LP4E
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
MSL1
Package Marking [3]
[1]
H628
XXXX
[2]
H628
XXXX
[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: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12
12 - 43
HMC628LP4 / 628LP4E
v07.0410
BiCMOS MMIC 5-Bit DIGITAL
VARIABLE GAIN AMPLIFIER, 50 - 800 MHz
Pin Descriptions
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12
12 - 44
Pin Number
Function
Description
1
RFIN
This pin is DC coupled and matched to 50 Ohms.
A blocking capacitor is needed.
2
GND
These pins and package bottom must
be connected to RF/DC ground.
3-7
B4, B3,
B2, B1, B0
8
LE
9
DATA
10
CLK
12
PUP2
13
PUP1
14
P/S
15
SERIAL OUT
Serial input data delayed by 5 clock cycles.
16
IBIAS
Bias current to amplifier. External inductor is needed.
17
ISET
External bias resistor to adjust the current of the amplifier.
18
Vdd
Supply Voltage.
19
FB
Interface Schematic
See Truth Table, Control Voltage Table
and Timing Diagram.
Feedback capacitance for the amplifier.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
HMC628LP4 / 628LP4E
v07.0410
BiCMOS MMIC 5-Bit DIGITAL
VARIABLE GAIN AMPLIFIER, 50 - 800 MHz
Pin Number
Function
Description
11, 20
RFOUT,
AMP IN
Amplifier input. External blocking capacitor required.
21
ATT OUT
Attenuator output.
Interface Schematic
22 - 24
FC1, FC2, FC3
External capacitors to ground are required. Place these
capacitors close to the package.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12
12 - 45
HMC628LP4 / 628LP4E
v07.0410
BiCMOS MMIC 5-Bit DIGITAL
VARIABLE GAIN AMPLIFIER, 50 - 800 MHz
Application Circuit
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12
12 - 46
Components For Selected Frequencies
Tuned Frequency
50 - 250 MHz
250 - 500 MHz
500 - 800 MHz
Evaluation Board P/N
118415
120101
120102
C6
1 nF
33 pF
33 pF
L3
0 Ohms
15 nH
12 nH
C14
N/A
4.7 pF
1.5 pF
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
HMC628LP4 / 628LP4E
v07.0410
BiCMOS MMIC 5-Bit DIGITAL
VARIABLE GAIN AMPLIFIER, 50 - 800 MHz
Evaluation PCB
List of Materials for Evaluation PCB See Table[1]
Item
Description
Item
Description
J1, J2
PCB Mount SMA Connector
SW1, SW2
J3
18 Pin DC Connector
U1
HMC628LP4(E) Variable Gain Amplifier
J6, J7
DC Pin
PCB [2]
118413 Evaluation PCB
C1, C3
100 pF Capacitor, 0402 Pkg.
C2
4.7 μF Capacitor, 0805 Pkg.
C4
0.1 μF Capacitor, 0402 Pkg.
C6, C14
0402 Pkg.[1]
C5 - C7, C9 - C12
1000 pF Capacitor, 0402 Pkg.
C8
10 kpF Capacitor, 0805 Pkg.
R1 - R12
100 kOhm Resistor, 0402 Pkg.
R15 - R19
39 kOhm Resistor, 0402 Pkg.
R23
1.4 kOhm Resistor, 0603 Pkg.
L1, L2
270 nH Inductor, 0603 Pkg.
L3
0402 Pkg.[1]
SPDT 4 Position Dip Switch
[1] When requesting an evaluation board, please reference the
appropriate PCB number listed in the table “Components for
Selected Frequencies.”
[2] Circuit Board Material: Arlon 25FR / FR4
The circuit board used in the 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.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12
12 - 47