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PDF HMC307QS16GE Data sheet ( Hoja de datos )
| Número de pieza | HMC307QS16GE | |
| Descripción | 1dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR | |
| Fabricantes | Hittite Microwave Corporation | |
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HMC307QS16G / 307QS16GE
v08.0908
1dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, DC - 4 GHz
5
Typical Applications
The HMC307QS16G(E) is ideal for:
• Cellular
• PCS, ISM, MMDS
• Wireless Local Loop
Features
1 dB LSB Steps to 31 dB
Single Control Line Per Bit
± 0.5 dB Typical Bit Error
Miniature QSOP-16 Package: 29.4 mm2
Functional Diagram
General Description
The HMC307QS16G(E) are broadband 5-bit GaAs
IC digital attenuators in 16 lead QSOP grounded
base surface mount plastic packages. Covering DC
to 4 GHz, the insertion loss is less then 2 dB typical.
The attenuator bit values are 1 (LSB), 2, 4, 8, and 16
dB for a total attenuation of 31 dB. Attenuation accu-
racy is excellent at ± 0.5 dB typical with an IIP3 of up
to +44 dBm. Five bit control voltage inputs, toggled
between 0 and -5V, are used to select each attenua-
tion state at less than 50 uA each. A single Vee bias of
-5V allows operation down to DC. This product is an
excellent alternative to the HMC235QS16G.
5 - 66
Electrical Specifications, TA = +25° C, Vee = -5V & VCTL= 0/Vee
Parameter
Frequency
Min.
Typical
Max.
Insertion Loss
Attenuation Range
DC - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 4.0 GHz
DC - 4 GHz
1.8 2.2
1.9 2.4
2.0 2.5
2.1 2.7
31
Return Loss (RF1 & RF2, All Atten. States)
DC - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 4.0 GHz
11
11
10
8
15
17
18
15
Attenuation Accuracy: (Referenced to Insertion Loss)
1 - 20 dB States
21 - 31 dB States
1 - 15 dB States
16 - 31 dB States
DC - 2.7 GHz
DC - 2.7 GHz
2.7 - 4.0 GHz
2.7 - 4.0 GHz
± 0.2 + 3% of Atten. Setting Max
± 0.3 + 5% of Atten. Setting Max
± 0.3 + 5% of Atten. Setting Max
± 0.6 + 10% of Atten. Setting Max
Input Power for 0.1 dB Compression
0.5 - 4.0 GHz
24
Input Third Order Intercept Point
(Two-tone Input Power = 0 dBm Each Tone)
0.5 - 4.0 GHz
44
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 4 GHz
140
160
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
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
ns
ns
1 page  
v08.0908
HMC307QS16G / 307QS16GE
1dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, DC - 4 GHz
5
Evaluation Circuit Board
* R2 - R6 = 100 Ohm.
These resistors are optional
and may be used to enhance
decoupling of the RF path
from the control inputs.
List of Materials for Evaluation PCB 103397 [1]
Item
J1 - J2
J3 - J9
R1
R2 - R6
C1, C2
Description
PCB Mount SMA Connector
DC Pin
5k Ohm Resistor, 0402 Pkg.
100 Ohm Resistor, 0402 Pkg.
0402 Chip Capacitor, Select Value for Lowest
Frequency of Operation
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 and exposed paddle should be con-
nected 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.
U1 HMC307QS16G(E ) Digital Attenuator
The evaluation circuit board shown is available from
PCB [2]
103395 Evaluation PCB 1.5” x 1.5”
Hittite upon request.
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
5 - 70
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 | ||
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| PDF Descargar | [ Datasheet HMC307QS16GE.PDF ] | |
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