HMC424G16
v04.0709
0.5dB LSB GaAs MMIC 6-BIT DIGITAL
ATTENUATOR, DC - 3 GHz
5
ATTENUATORS - DIGITAL - SMT
Typical Applications
The HMC424G16 is ideal for:
• Telecom Infrastructure
• Military Radios, Radar & ECM
• Space Applications
• Test Instrumentation
Features
0.5 dB LSB Steps to 31.5 dB
Single Control Line Per Bit
±0.5 to ±0.8 dB Typical Bit Error
16 Lead Hermetic SMT Package
Functional Diagram
General Description
The HMC424G16 is a broadband 6-bit GaAs IC
digital attenuator in a 16 lead glass/metal (hermetic)
surface mount package. Covering DC to 3 GHz, the
insertion loss is less than 3 dB typical. The attenuator
bit values are 0.5 (LSB), 1, 2, 4, 8, and 16 dB for a
total attenuation of 31.5 dB. Attenuation accuracy
is excellent at ±0.5 dB typical step error with an IIP3
of +32 dBm. Six control voltage inputs, toggled bet-
ween 0 and -5V, are used to select each attenuation
state at less than 70 μA each. A single Vee bias of
-5V allows operation at frequencies down to DC.
Electrical Specifi cations,
T
A
= +25° C, With Vee = -5V & Vctl = 0/-5V
Parameter
Insertion Loss
Attenuation Range
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy: (Referenced to Insertion Loss)
All States
All 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)
REF State
All Other States
DC - 2.0 GHz
2.0 - 3.0 GHz
1.0 - 3.0 GHz
1.0 - 3.0 GHz
DC - 3 GHz
30
50
ns
ns
± 0.4 + 4% of Atten. Setting Max
± 0.5 + 5% of Atten. Setting Max
22
46
32
dB
dB
dBm
dBm
dBm
Frequency (GHz)
DC - 3 GHz
DC - 3 GHz
DC - 3 GHz
Min.
Typ.
3.0
31.5
12
Max.
3.6
Units
dB
dB
dB
5 - 98
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 ]
