HMC541LP3
/
541LP3E
10 dB GaAs MMIC 1-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 5.0 GHz
v01.1005
Typical Applications
Features
+/- 0.2 dB Typical Step Error
Low Insertion Loss: 1.0 dB
High IP3: +50 dBm
Single Control Line
TTL/CMOS Compatible Control
Single +5V Supply
3x3 mm SMT Package
6
ATTENUATORS - SMT
The HMC541LP3 / HMC541LP3E is ideal for both RF
and IF applications:
• Cellular Infrastructure
• ISM, MMDS, WLAN, WiMAX, WiBro
• Microwave Radio & VSAT
• Test Equipment and Sensors
Functional Diagram
General Description
The HMC541LP3 & HMC541LP3E are broadband
1-bit GaAs IC digital attenuators in low cost lead-
less surface mount packages. This single posi-
tive control line digital attenuator utilizes off chip
AC ground capacitors for near DC operation,
making it suitable for a wide variety of RF and IF
applications. Covering DC to 5.0 GHz, the insertion
loss is less than 1.0 dB typical. Attenuation accuracy is
excellent at ± 0.2 dB typical step error. The attenuator
also features a high IIP3 of +50 dBm. One TTL/CMOS
control input is used to select the attenuation state. A
single Vdd bias of +5V is required.
Electrical Specifications,
T
A
= +25° C, With Vdd = +5V & Vctl = 0/+5V
(Unless Otherwise Noted)
Parameter
Insertion Loss
Attenuation Range
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy: (Referenced to Insertion Loss)
Input Power for 0.1 dB Compression
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
Switching Characteristics
DC - 5.0 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
20
23
ns
ns
Frequency (GHz)
DC - 2.0 GHz
2.0 - 3.5 GHz
3.5 - 5.0 GHz
DC - 5.0 GHz
DC - 2.5 GHz
2.5 - 5.0 GHz
DC - 5.0 GHz
0.1 - 5.0 GHz
0.1 - 5.0 GHz
Min.
Typ.
0.5
1.0
2.0
10
25
15
± 0.4 Max.
27
50
Max.
0.8
1.3
2.3
Units
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
6 - 176
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
HITTITE [ HITTITE MICROWAVE CORPORATION ]
