HMC540LP3 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – 1 dB LSB GaAs MMIC 4-BIT DIG POSITIVE CONTROL ATTENUATOR, DC - 5.5 GHz

HMC540LP3 / 540LP3E
v00.0605
1 dB LSB GaAs MMIC 4-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 5.5 GHz
Typical Applications
Features
6
The HMC540LP3 / HMC540LP3E is ideal for both RF
1 dB LSB Steps to 15 dB
and IF applications:
+/- 0.2 dB Typical Step Error
• Cellular Infrastructure
Low Insertion Loss: 1.0 dB
• ISM, MMDS, WLAN, WiMAX, WiBro
• Microwave Radio & VSAT
• Test Equipment and Sensors
Functional Diagram
High IP3: +50 dBm
Single Control Line Per Bit
TTL/CMOS Compatible Control
Single +5V Supply
3x3 mm SMT Package
General Discription
The HMC540LP3 & HMC540LP3E are broadband
4-bit GaAs IC digital attenuators in low cost leadless
surface mount packages. This single positive control
line per bit 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 5.5 GHz, the insertion loss is less than 1.0 dB typical.
The attenuator bit values are 1 (LSB), 2, 4 and 8 dB for
a total attenuation of 15 dB. Attenuation accuracy is
excellent at ± 0.2 dB typical step error. The attenuator
also features a IIP3 of +50 dBm. Four TTL/CMOS
control inputs are used to select each attenuation
state. A single Vdd bias of +5V is required.
6 - 170
Electrical Specifications,
T_A = +25° C, With Vdd = +5V & Vctl = 0/+5V (Unless Otherwise Noted)
Parameter
Insertion Loss
Frequency (GHz)
Min.
DC - 2.0 GHz
2.0 - 3.0 GHz
3.0 - 4.0 GHz
4.0 -5.5 GHz
Typ.
Max.
0.8
1.1
1.0
1.3
1.3
1.6
2.2
2.6
Attenuation Range
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy:
(Referenced to Insertion Loss)
All States
DC - 5.5 GHz
DC - 3.5 GHz
3.5 - 5.5 GHz
DC - 1.0 GHz
1.0 - 4.0 GHz
4.0 - 5.0 GHz
5.0 - 5.5 GHz
15
20
15
± (0.2 + 2% of Atten. Setting) Max.
± (0.2 + 3% of Atten. Setting) Max.
± (0.3 + 5% of Atten. Setting) Max.
± (0.4 + 8% of Atten. Setting) Max.
Input Power for 0.1 dB Compression
0.1 - 5.5 GHz
27
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
REF - 4 dB States
5 - 15 dB States
0.1 - 5.5 GHz
50
45
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC -5.5 GHz
95
100
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
ns
ns
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com