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PDF HMC274QS16 Data sheet ( Hoja de datos )
| Número de pieza | HMC274QS16 | |
| Descripción | 1 dB LSB GaAs IC 5-BIT DIGITAL ATTENUATOR/ 0.7 - 2.7 GHz | |
| Fabricantes | Hittite Microwave Corporation | |
| Logotipo |  |
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v00.1002
MICROWAVE CORPORATION
HMC274QS16
1 dB LSB GaAs IC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 2.7 GHz
Typical Applications
The HMC274QS16 is ideal for:
9 • Cellular/PCS/3G Infrastructure
• 2.4 GHz ISM Radios
• Wireless Data
Functional Diagram
Features
1 dB LSB Steps to 31 dB
Single Positive Control (+3 to +5V) Per Bit
+/- 0.5 dB Typical Bit Error
Small QSOP16 Plastic Package
General Description
The HMC274QS16 is a broadband 5-bit positive
control GaAs IC digital attenuator in a 16 lead QSOP
plastic package. Covering 0.7 to 2.7 GHz the inser-
tion loss is typically less than 2.3 dB. The attenuator
bit values are 1 (LSB), 2, 4, 8, and 16 dB for a total
attenuation of 31 dB. Accuracy is excellent at ± 0.5
dB typical with an IIP3 of up to +50 dBm. Five bit
control voltage inputs, toggled between 0 and +3 to
+5 volts, are used to select each attenuation state.
A single Vdd bias of +3 to +5 volts applied through
an external 5K Ohm resistor is required.
9 - 20
Electrical Specifications, TA = +25° C, Vdd = +3V to +5V & Vctl = 0/Vdd
Parameter
Frequency
Min. Typical Max.
Insertion Loss
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.0 2.4
2.3 2.7
2.5 3.1
Attenuation Range
0.7 - 2.7 GHz
31
Return Loss (RF1 & RF2, All Atten. States)
0.7 - 1.4 GHz
1.4 - 2.7 GHz
10
12
15
17
Attenuation Accuracy: (Referenced to Insertion Loss)
All Attenuation States
All Attenuation States
All Attenuation States
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
± 0.35 + 5% of Atten. Setting Max
± 0.25 + 3% of Atten. Setting Max
± 0.30 + 5% of Atten. Setting Max
Input Power for 0.1 dB Compression
Vdd = 5V
Vdd = 3V
0.7 - 2.7 GHz
29
20
Input Third Order Intercept Point
(Two-tone Input Power = 0 dBm Each Tone)
Vdd = 5V
Vdd = 3V
0.7 - 2.7 GHz
54
52
Switching Characteristics
0.7 - 2.7 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
560
600
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
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
ns
ns
1 page  
v00.1002
MICROWAVE CORPORATION
HMC274QS16
1 dB LSB GaAs IC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 2.7 GHz
Pin Descriptions
9
Pin Number
1, 2, 8, 10 - 15
Function
GND
Description
This pin must be DC grounded.
Interface Schematic
3-7
9
V1 - V5
RF1
See truth table and control voltage table.
This pin is DC coupled and matched to 50 Ohm.
Blocking capacitors are required.
16
RF1
This pin is DC coupled and matched to 50 Ohm.
Blocking capacitors are required.
9 - 24
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 HMC274QS16.PDF ] | |
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