HMC627LP5
/
627LP5E
v01.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 1 GHz
Typical Applications
The HMC627LP5(E) is ideal for:
• Cellular/3G Infrastructure
• WiBro / WiMAX / 4G
• Microwave Radio & VSAT
• Test Equipment and Sensors
• IF & RF Applications
Features
-11.5 to 20 dB Gain Control in 0.5 dB Steps
High Output IP3: +36 dBm
TTL/CMOS Compatible Serial or Parallel Control
±0.25 dB Typical Gain Step Error
Single +5V Supply
32 Lead 5x5mm SMT Package: 25mm
2
Functional Diagram
General Description
The HMC627LP5(E) is a digitally controlled variable
gain amplifier which operates from DC to 1 GHz,
and can be programmed to provide anywhere from
11.5 dB attenuation, to 20 dB of gain, in 0.5 dB steps.
The HMC627LP5(E) delivers noise figure of 4.3 dB
in its maximum gain state, with output IP3 of up to
+36 dBm in any state. The dual mode gain control
interface accepts either three wire serial input or 6
bit parallel word. The HMC627LP5(E) also features a
user selectable power up state and a serial output for
cascading other Hittite serially controlled components.
The HMC627LP5(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,
T
A
= +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 1 dB Compression
Output Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
Noise Figure
Supply Current (Idd)
DC - 1.0 GHz
DC - 1.0 GHz
DC - 0.8 GHz
0.8 - 1.0 GHZ
DC - 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.
18
15
Typ.
20
17.5
31.5
17
12
± (0.10 + 5% of Gain Setting) Max.
± (0.30 + 3% of Gain Setting) Max.
16
20
36
4.3
90
dB
dB
dBm
dBm
dB
mA
Max.
Units
dB
dB
dB
14 - 20
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
HMC627LP5
/
627LP5E
v01.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 1 GHz
Normalized Attenuation
Maximum Gain vs. Frequency
25
20
15
10
GAIN (dB)
5
0
-5
-10
-15
-20
-25
0
0.5
1
1.5
2
2.5
[1]
(Only Major States are Shown)
0
NORMALIZED ATTENUATION (dB)
[1]
-5
-10
-15
-20
-25
-30
-35
[2]
+25 C
-40 C
+85 C
3
3.5
4
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
FREQUENCY (GHz)
14
VARIABLE GAIN AMPLIFIERS - SMT
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
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
0
0.5
1
1.5
2
2.5
3
3.5
4
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
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
[1] Tested with broadband bias tee on RF ports and C1 = 10,000pF
[2] C1, C6 and C8 = 100pF, L1 = 270nF
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 - 2
HMC627LP5
/
627LP5E
v01.0907
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
-0.6
-1.5
-2
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
-0.8
-1
0
4
8
12
16
20
24
28
32
ATTENUATION STATE (dB)
BIT ERROR (dB)
31.5 dB
Bit Error vs. Attenuation State
[2]
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
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
STEP ERROR (dB)
16 dB
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
40
8 dB
20
0
-20
-40
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
0.5 - 4 dB
-1
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
[1] Tested with broadband bias tee on RF ports and C1 = 10,000pF
[2] C1, C6 and C8 = 100pF, L1 = 270nF
14 - 22
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
HMC627LP5
/
627LP5E
v01.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 1 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
14
VARIABLE GAIN AMPLIFIERS - SMT
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
14 - 2
HMC627LP5
/
627LP5E
v01.0907
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 1 GHz
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
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.
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 9 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
0.593 W
110 °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 (V)
+5.0
Vs (V)
+5.0
Idd (Typ.) (mA)
2
Is (mA)
88
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 - 24
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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