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PDF HMC624LP4E Data sheet ( Hoja de datos )
| Número de pieza | HMC624LP4E | |
| Descripción | 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR | |
| Fabricantes | Hittite Microwave Corporation | |
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v02.0807
10
Typical Applications
The HMC624LP4(E) is ideal for:
• Cellular/3G Infrastructure
• WiBro / WiMAX / 4G
• Microwave Radio & VSAT
www.DataSheet4U.c•oTmest Equipment and Sensors
• IF & RF Applications
Functional Diagram
HMC624LP4 / 624LP4E
0.5 dB LSB GaAs MMIC 6-BIT
DIGITAL ATTENUATOR, DC - 6 GHz
Features
0.5 dB LSB Steps to 31.5 dB
High Input IP3: +55 dBm
Low Insertion Loss: 2.2 dB @ 3.5 GHz
TTL/CMOS Compatible, Serial or Parallel Control
±0.25 dB Typical Step Error
Single +3V or +5V Supply
Compact 4x4mm SMT Package
General Description
The HMC624LP4(E) is a broadband 6-bit GaAs IC
Digital Attenuator in a low cost leadless SMT package.
This versatile digital attenuator incorporates off-chip
AC ground capacitors for near DC operation, making
it suitable for a wide variety of RF and IF applications.
The dual mode control interface is CMOS/TTL
compatible, and accepts either a three wire serial
input or a 6 bit parallel word. The HMC624LP4(E) also
features a user selectable power up state and a serial
output port for cascading other Hittite serial controlled
components. The HMC624LP4(E) is housed in a
RoHS compliant 4x4 mm QFN leadless package, and
requires no external matching components.
Electrical Specifications,
TA = +25° C, with Vdd = +5V & Vctl = 0/+5V (Unless Otherwise Noted)
Parameter
Frequency (GHz) Min. Typ. Max.
Insertion Loss
DC - 3.0 GHz
3.0 - 6.0 GHz
1.8 2.4
2.8 3.8
Attenuation Range
31.5
Return Loss (ATTIN, ATTOUT, All Atten. States)
DC - 6.0 GHz
15
Attenuation Accuracy: (Referenced to Insertion Loss)
All Attenuation States
DC - 0.8 GHz
0.8 - 6.0 GHz
± (0.10 + 5% of Atten. Setting) Max.
± (0.30 + 3% of Atten. Setting) Max.
Input Power for 0.1 dB Compression
DC - 6.0 GHz
30
Input Third Order Intercept Point
(Two-Tone Input Power= 10 dBm Each Tone)
DC - 6.0 GHz
55
Units
dB
dB
dB
dB
dB
dB
dBm
dBm
10 - 202
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
1 page  
v02.0807
HMC624LP4 / 624LP4E
0.5 dB LSB GaAs MMIC 6-BIT
DIGITAL ATTENUATOR, DC - 6 GHz
Power-Up States
10
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.
www.DataSheet4U.com
Parallel PUP Truth Table
P/S
LE
PUP2
PUP1 Attenuation State
0000
31.5 dB
0010
24 dB
0001
16 dB
0011
8 dB
0 1 X X 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.
Absolute Maximum Ratings
RF Input Power (DC - 6 GHz) [1]
27 dBm (T = +85 °C)
Digital Inputs (Reset, Shift Clock,
Latch Enable & Serial Input)
-1.5V to (Vdd +1.5V) Vdc
Bias Voltage (Vdd)
5.6 Vdc
Channel Temperature
150 °C
Continuous Pdiss (T = 85 °C)
(derate 9.8 mW/°C above 85 °C) [1] 0.635 W
Thermal Resistance
102 °C/W
Storage Temperature
-65 to +150 °C
Operating Temperature
-40 to +85 °C
[1] At max gain settling
Bias Voltage
Vdd (Vdc)
3
5
Idd (Typ.) (mA)
1.8
2.0
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Truth Table
Control Voltage Input
Attenuation State
D5 D4 D3 D2 D1 D0
High High High High High High
Reference
I.L.
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 an attenuation
approximately equal to the sum of the bits selected.
TTL/CMOS Control Voltage
State
Low
High
Vdd= +3V or +5V
0 to 0.8V
2.0V to Vdd
10 - 206
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
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet HMC624LP4E.PDF ] | |
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