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PDF HMC470LP3E Data sheet ( Hoja de datos )
| Número de pieza | HMC470LP3E | |
| Descripción | 1 dB LSB GaAs MMIC 5-BIT DIGITAL POSITIVE CONTROL ATTENUATOR - DC - 3.0 GHz | |
| Fabricantes | Hittite Microwave | |
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Designer’s Kit
Available
v02.0605
HMC470LP3 / 470LP3E
www.DataSheet4U.com
1 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 3.0 GHz
Typical Applications
6 The HMC470LP3 /HMC470LP3E is ideal for both RF
and IF applications:
• Cellular; UMTS/3G Infrastructure
• ISM, MMDS, WLAN, WiMAX
• Microwave Radio & VSAT
• Test Equipment and Sensors
Functional Diagram
Features
1 dB LSB Steps to 31 dB
Single Control Line Per Bit
TTL/CMOS Compatible Control
+/- 0.3 dB Typical Step Error
Single +5V Supply
3 x 3 mm SMT Package
Included in the HMC-DK004 Designer’s Kit
General Description
The HMC470LP3 & HMC470LP3E are broadband
5-bit GaAs IC digital attenuators in low cost lead-
less surface mount packages. This single positive
control line per bit digital attenuator incorporates
off chip AC ground capacitors for near DC opera-
tion, making it suitable for a wide variety of RF
and IF applications. Covering DC to 3.0 GHz, the
insertion loss is less than 1.5 dB typical. The
attenuator bit values are 1 (LSB), 2, 4, 8, and 16 dB
for a total attenuation of 31 dB. Attenuation accuracy
is excellent at ± 0.3 dB typical step error with an IIP3
of +45 dBm. Five TTL/CMOS control inputs are used
to select each attenuation state. A single Vdd bias of
+5V is required.
6 - 144
Electrical Specifications,
TA = +25° C, With Vdd = +5V & Vctl = 0/+5V (Unless Otherwise Noted)
Parameter
Insertion Loss
Attenuation Range
Frequency (GHz)
DC - 1.5 GHz
1.5 - 2.3 GHz
2.3 - 3.0 GHz
DC - 3.0 GHz
Min.
Return Loss (RF1 & RF2, All Atten. States)
DC - 3.0 GHz
Typ.
1.3
1.4
1.7
31
17
Max.
1.6
1.7
2.0
Units
dB
dB
dB
dB
dB
Attenuation Accuracy: (Referenced to Insertion Loss)
All Attenuation States
1.0 - 15.0 dB States
16.0 - 31.0 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)
REF - 15 dB
States
16 - 31 dB States
DC - 2.3 GHz
2.3 - 3.0 GHz
2.3 - 3.0 GHz
0.1 - 3.0 GHz
0.1 - 3.0 GHz
DC - 3.0 GHz
± (0.3 + 2% of Atten. Setting) Max.
± (0.3 + 3% of Atten. Setting) Max.
± (0.3 + 6% of Atten. Setting) Max.
20
45
35
dB
dB
dB
dBm
dBm
dBm
160 ns
180 ns
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
1 page  
v02.0605
HMC470LP3 / 470LP3E
www.DataSheet4U.com
1 dB LSB GaAs MMIC 5-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 3.0 GHz
6
Pin Descriptions
Pin Number
Function
1 Vdd
2, 11
RF1, RF2
3, 10
4-9
N/C
ACG1 - ACG6
Description
Supply Voltage.
This pin is DC coupled and matched to 50 Ohm.
Blocking capacitors are required.
Select value based on lowest frequency of operation.
These pins should be connected to PCB RF ground to
maximize performance.
External capacitor to ground is required. Select value for
lowest frequency of operation. Place capacitor as close
to pins as possible.
Interface Schematic
12 - 16
V1 - V5
See truth table and control voltage table.
GND
Package bottom has an exposed metal paddle that must also
be connected to RF Ground.
Application Circuit
6 - 148
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
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet HMC470LP3E.PDF ] | |
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