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PDF HMC641 Data sheet ( Hoja de datos )
| Número de pieza | HMC641 | |
| Descripción | GaAs MMIC SP4T NON-REFLECTIVE SWITCH | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HMC641 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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v01.0108
Typical Applications
The HMC641 is ideal for:
• Telecom Infrastructure
• Microwave Radio & VSAT
• Military & Space Hybrids
4 • Test Instrumentation
Functional Diagram
HMC641
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 18 GHz
Features
Broadband Performance: DC - 18 GHz
High Isolation: 42 dB @ 12 GHz
Low Insertion Loss: 2.1 dB @ 12 GHz
Integrated 2:4 TTL Decoder
Small Size: 1.92 x 1.60 x 0.10 mm
General Description
The HMC641 is a broadband non-reflective GaAs
PHEMT SP4T switch chip. Covering DC to 18 GHz,
this switch offers high isolation and low insertion
loss and extends the frequency coverage of Hittite’s
SP4T switch product line. This switch also includes
an on board binary decoder circuit which reduces
the number of required logic control lines to two. The
switch operates using a negative control voltage of
0/-5V, and requires a fixed Vss bias of -5V. All data
is tested with the chip in a 50 Ohm test fixture con-
nected via one 3.0 x 0.5 mil gold ribbon of minimal
length on each RF port.
Electrical Specifications, TA = +25° C, With 0/-5V Control, Vss= -5V, 50 Ohm System
Parameter
Insertion Loss
Frequency
DC - 12 GHz
DC - 18 GHz
Min.
Typ.
Max.
Units
1.8 2.1 dB
2.8 3.1 dB
Isolation (RFC to RF1 - RF4)
DC - 12 GHz
DC - 18 GHz
39 42
37 40
dB
dB
Return Loss
Return Loss
“On State”
“Off State”
DC - 12 GHz
DC - 18 GHz
DC - 18 GHz
12 15
11 14
12 15
dB
dB
dB
Input Power for 1 dB Compression
2.05- 18 GHz 21 24
dBm
Input Third Order Intercept
(Two-Tone Input Power= +14 dBm Each Tone)
0.05 - 18 GHz 37 40
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 18GHz
14 ns
95 ns
4 - 38
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1 page  
v01.0108
HMC641
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 18 GHz
4
Pad Descriptions
Pad Number
Function
1, 2, 3, 7, 8
RFC, RF1, RF2,
RF3, RF4
4 CTLA
5 CTLB
6 Vss
Description
These pads are DC coupled and matched to
50 Ohms. Blocking capacitors are required if
RF line potential is not equal to 0V.
See Truth Table and Control Voltage Table.
See Truth Table and Control Voltage Table.
Supply Voltage -5.0 Vdc ± 10%.
Die Bottom
GND
Die Bottom must be connected to RF/DC ground.
Interface Schematic
TTL Interface Circuit
4 - 42
Note:
Control inputs A and B can be driven directly with TTL logic with -5 Volts
applied to the HCT logic gates Vee pin and to Vss Pad of the RF Switch.
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Inc.,
9106
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet HMC641.PDF ] | |
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