HMC425LP3 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.4 - 8.0 GHz

v00.0202
HMC425LP3
MICROWAVE CORPORATION
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, 2.4 - 8.0 GHz
Typical Applications
The HMC425LP3 is ideal for:
9
• WLAN & Point-to-Multi-Point
• Fiber Optics & Broadband Telecom
• Microwave Radio & VSAT
• Military
Functional Diagram
Features
0.5 dB LSB Steps to 31.5 dB
Single Control Line Per Bit
+/- 0.5 dB Typical Bit Error
Single +5V Supply
3 mm x 3 mm x 1 mm SMT Package
General Description
The HMC425LP3 is a broadband 6-bit GaAs IC
digital attenuator in a low cost leadless surface
mount package. Covering 2.4 to 8.0 GHz, the
insertion loss is less then 3.8 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. Attenua-
tion accuracy is excellent at ± 0.5 dB typical step
error with an IIP3 of +40 dBm. Six control volt-
age inputs, toggled between 0 and +3 to +5V, are
used to select each attenuation state. A single
Vdd bias of +3 to +5V is required.
Electrical Specifications,
T_A = +25° C, With Vdd = +5V & Vctl = 0/+5V (Unless Otherwise Noted)
Parameter
Frequency
(GHz)
Min.
Typ.
Max.
Insertion Loss
2.4 - 6.0 GHz
6.0 - 8.0 GHz
3.0
3.5
3.8
4.3
Attenuation Range
2.4 - 8.0 GHz
31.5
Return Loss (RF1 & RF2, All Atten. States)
2.4 - 8.0 GHz
11
15
Attenuation Accuracy:
(Referenced to Insertion Loss)
All States 2.4 - 8.0 GHz
± 0.5 + 5% of Atten. Setting Max.
Input Power for 0.1 dB Compression
Vdd = 5V
Vdd = 3V
2.4 - 8.0 GHz
22
19
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
REF - 16.0 dB States
16.5 - 31.5 dB States
2.4 - 8.0 GHz
45
35
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
2.4 - 8.0 GHz
160
180
Units
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
ns
ns
9 - 92
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order Online at www.hittite.com