HMC939LP4_12 Datasheet, PDF (1/8 Pages) Hittite Microwave Corporation – 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL

v01.1211
Typical Applications
The HMC939LP4 / HMC939LP4E is ideal for:
• Fiber Optics & Broadband Telecom
• Microwave Radio & VSAT
• Military Radios, Radar & ECM
• Space Applications
• Sensors
• Test & Measurement Equipment
Functional Diagram
HMC939LP4 / 939LP4E
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 33 GHz
Features
1.0 dB LSB Steps to 31 dB
Single Positive Control Line Per Bit
±1.0 dB Typical Bit Error
High Input IP3: +43 dBm
16mm² Leadless SMT Plastic Package
General Description
The HMC939LP4 & HMC939LP4E are broadband
5-bit GaAs IC digital attenuators in low cost leadless
surface mount packages. Covering 0.1 to 33.0 GHz,
the insertion loss is less than 5 dB typical. The attenu-
ator bit values are 1.0 (LSB), 2, 4, 8, 16 for a total atten-
uation of 31 dB. Attenuation accuracy is excellent
at ±0.4 dB typical step error with an IIP3 of +43 dBm.
Five control voltage inputs, toggled between +5V and
0V, are used to select each attenuation state.
Electrical Specifications, T_A = +25° C, With Vdd = +5V, Vss = -5V, P0 - P4 = 0/ +5V
Parameter
Frequency (GHz)
Min.
Typ.
Max.
Insertion Loss
0.1 - 18.0 GHz
18.0 - 26.5 GHz
26.5 - 33.0 GHz
4.0
5.5
5.5
7.0
6.5
8.5
Attenuation Range
0.1 - 33.0 GHz
31
Return Loss (RF1 & RF2, All Atten. States)
0.1 - 33.0 GHz
12
Attenuation Accuracy: (Referenced to Insertion Loss)
1.0 - 15 dB States
16 - 31 dB States
16 - 31 dB States
Input Power for 0.1 dB Compression
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON/tOFF (50% CTL to 10/90% RF)
Idd
Iss
0.1 - 33.0 GHz
0.1 - 20.0 GHz
20.0 - 33.0 GHz
0.1 - 0.5 GHz
0.5 - 33.0 GHz
0.1 - 0.5 GHz
0.5 - 33.0 GHz
0.1 - 33.0 GHz
0.1 - 33.0 GHz
0.1 - 33.0 GHz
± (0.5 + 5%) of Atten. Setting Max
± (0.5 + 5%) of Atten. Setting Max
± (0.6 + 8%) of Atten. Setting Max
20
25
40
43
60
90
2.5
4.5
6.5
-7.0
-5.0
-3.0
Units
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
ns
ns
mA
mA
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
1
Phone: [phone] Fax: [phone] Order On-line at www.hittite.com
Application Support: Phone: [phone] or [e-mail]