HMC624LP4
/
624LP4E
v09.0210
0.5 dB LSB GaAs MMIC 6-BIT
DIGITAL ATTENUATOR, DC - 6 GHz
Features
0.5 dB LSB Steps to 31.5 dB
Power-Up State Selection
High Input IP3: +55 dBm
Low Insertion Loss: 2.2 dB @ 3.5 GHz
TTL/CMOS Compatible, Serial, Parallel
or Latched Parallel Control
±0.25 dB Typical Step Error
Single +3V or +5V Supply
24 Lead 4x4mm SMT Package: 16mm
2
8
ATTENUATORS - DIGITAL - SMT
Typical Applications
The HMC624LP4(E) is ideal for:
• Cellular/3G Infrastructure
• WiBro / WiMAX / 4G
• Microwave Radio & VSAT
• Test Equipment and Sensors
• IF & RF Applications
Functional Diagram
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,
Parameter
Insertion Loss
Attenuation Range
T
A
= +25° C, 50 Ohm System, with Vdd = +5V & Vctl = 0/+5V
(Unless Otherwise Noted)
Frequency (GHz)
DC - 3 GHz
3.0 - 6.0 GHz
Min.
Typ.
1.8
2.8
31.5
DC - 6 GHz
DC - 0.8 GHz
0.8 - 6.0 GHz
DC - 6 GHz
DC - 6 GHz
15
± (0.10 + 5% of Atten. Setting) Max.
± (0.30 + 3% of Atten. Setting) Max.
30
55
Max.
2.4
3.8
Units
dB
dB
dB
dB
dB
dB
dBm
dBm
Return Loss (ATTIN, ATTOUT, All Atten. States)
Attenuation Accuracy: (Referenced to Insertion Loss)
All Attenuation States
Input Power for 0.1 dB Compression
Input Third Order Intercept Point
(Two-Tone Input Power= 10 dBm Each Tone)
8-1
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 apps@hittite.com
HITTITE [ HITTITE MICROWAVE CORPORATION ]
