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PDF HMC230MS8 Data sheet ( Hoja de datos )
| Número de pieza | HMC230MS8 | |
| Descripción | 4 dB LSB GaAs MMIC 3-BIT DIGITAL ATTENUATOR/ 0.75 - 2.0 GHz | |
| Fabricantes | Hittite Microwave Corporation | |
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v01.0701 HMC230MS8
MICROWAVE CORPORATION
4 dB LSB GaAs MMIC 3-BIT DIGITAL
ATTENUATOR, 0.75 - 2.0 GHz
9
9-8
Typical Applications
The HMC230MS8 is ideal for:
• Cellular
• PCS, ISM, MMDS
• WLL Handset
• Base Station Infrastructure
Functional Diagram
Features
4 dB LSB Steps to 28 dB
Single Positive Control Per Bit
+/- 0.5 dB Typical Bit Error
Pin - For - Pin Replacement to
AA100-59 Digital Attenuator
General Description
The HMC230MS8 is a broadband 3 - bit positive
control GaAs IC digital attenuator in an 8 lead MSOP
surface mount plastic package. Covering 0.75 to
2 GHz, the insertion loss is typically less than 2
dB. The attenuator bit values are 4 (LSB), 8, and
16 dB for a total attenuation of 28 dB. Accuracy is
excellent at ± 0.5 dB typical with an IIP3 of up to
+48 dBm. Three bit control voltage inputs, toggled
between 0 and +3 to +5 volts, are used to select
each attenuation state at less than 50 uA each. A
single Vdd bias of +3 to +5 volts applied through an
external 5K Ohm resistor is required.
Electrical Specifications,
TA = +25° C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated)
Parameter
Frequency
Min. Typical Max.
Insertion Loss
0.75 - 1.7 GHz
1.7 - 2.0 GHz
1.6 1.8
1.8 2.1
Attenuation Range
0.75 - 2.0 GHz
28
Return Loss (RF1 & RF2, All Atten. States)
0.75 - 1.7 GHz
1.7 - 2.0 GHz
10
13
13
16
Attenuation Accuracy: (Reference to Insertion Loss)
4, 8, 12, 16, 20 dB States
24, 28 dB States
All Attenuation States
0.75 - 1.4 GHz
0.75 - 1.4 GHz
1.40 - 2.0 GHz
± 0.3 + 3% of Atten. Setting Max
± 0.4 + 6% of Atten. Setting Max
± 0.3 + 3% of Atten. Setting Max
Input Power for 0.1 dB Compression
5V 0.75 - 2.0 GHz
3V
20
19
Input Third Order Intercept
(Two-Tone Input Power = 0 dBm Each)
5V 0.75 - 2.0 GHz
3V
46
45
Switching Characteristics
0.75 - 2.0 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
560
600
Units
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
ns
ns
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
1 page  
v01.0701
MICROWAVE CORPORATION
HMC230MS8
4 dB LSB GaAs IC 3-BIT DIGITAL
ATTENUATOR, 0.75 - 2.0 GHz
Evaluation Circuit Board
9
*R2 = R3 = R4 = 100 Ohm.
These Resistors are optional and may
be used to enhance decoupling of the
RF path from the control inputs.
The circuit board used in the final application should use RF circuit design techniques. Signal lines should have 50 ohm
impedance while the package ground leads should be connected directly to the ground plane similar to that shown.
A sufficient number of VIA holes should be used to connect the top and bottom ground planes. The evaluation circuit
board as shown is available from Hittite Microwave Corporation upon request.
List of Material
Item
Description
J1 - J2
PC Mount SMA Connector
J3 - J6
DC Pin
R1 5k Ohm Resistor, 0402 Chip
R2, R3, R4
100 Ohm Resistor, 0402 Chip
C1, C2
0402 Chip Capacitor, Select for Lowest Frequency of Operation
U1 HMC230MS8 Digital Attenuator
PCB*
103153 Evaluation PCB 1.25” x 1.5”
*Circuit Board Material: Rogers 4350
9 - 12
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet HMC230MS8.PDF ] | |
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