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參數(shù)資料
| 型號： | HMMC-1015 |
| 元件分類： | 衰減器 |
| 英文描述： | 0 MHz - 50000 MHz RF/MICROWAVE VARIABLE ATTENUATOR |
| 封裝： | CHIP |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 165K |
| 代理商： | HMMC-1015 |
3
Application
The HMMC-1015 is designed to be
used as a gain control block in an
ALC assembly. Because of its wide
dynamic range and return loss
performance, the HMMC-1015 may
also be used as a broadband pulse
modulator or single-pole single-
throw, non-reflective switch.
Operation
The attenuation value of the
HMMC-1002 is adjusted by apply-
ing negative voltage to V2. At any
attenuation setting, optimum
VSWR is obtained by applying
negative voltage to V1. Applying
negative voltage (V2) to the gates
of the shunt FETs sets the
source-to-drain resistance and
establishes the attenuation level.
Applying negative voltage (V1) to
the gates of the series FETs opti-
mizes the input and output
match for different attenuation
settings. In some applications, a
single setting of V1 may provide
sufficient input and output
match over the desired attenua-
tion range (V
2). For any
HMMC-1015 the values of V
1 may
be adjusted so that the device
attenuation versus voltage is
monotonic for both V
1 and V2;
however, this will slightly de-
grade the input and output
return loss.
The attenuation and input/
output match of the HMMC-1015
may also be controlled using only
a single input voltage by utilizing
the on-chip DC reference circuit
and the driver circuit shown in
Figure 4. This circuit optimizes
VSWR for any attenuation
setting. Because of process
variations, the values of V
REF,
R
REF, and RL are different for
each wafer if optimum perfor-
mance is required. Typical values
for these elements are given. The
ratio of the resistors R
1 and R2
determines the sensitivity of the
attenuation versus voltage
performance of the attenuator.
For more information on the
performance of the HMMC-1015
and the driver circuits previously
mentioned see MWTC’s Applica-
tion Note #37, “HMMC-1021
Attenuator: Attenuation Con-
trol.” For more S-parameter
information, see MWTC’s Appli-
cation Note #44, “HMMC-1015
Attenuator: S-Parameters.”
Assembly Techniques
GaAs MMICs are ESD sensitive.
ESD preventive measures must
be employed in all aspects of
storage, handling, and assembly.
MMIC ESD precautions, handling
considerations, die attach and
bonding methods are critical
factors in successful GaAs MMIC
performance and reliability.
Agilent application note #54,
“GaAs MMIC ESD, Die Attach
and Bonding Guidelines” pro-
vides basic information on these
subjects.
V1
50
RF Attenuator Circuit
50
500
DCIN
DCOUT
500
DC Reference Circuit
V2
RFIN
RFOUT
Figure 1. HMMC-1015 Schematic.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HMMC-1015 | 0 MHz - 50000 MHz RF/MICROWAVE VARIABLE ATTENUATOR |
| HMMC-2007 | 0 MHz - 8000 MHz RF/MICROWAVE SGL POLE DOUBLE THROW SWITCH, 1.4 dB INSERTION LOSS |
| HMMC-2027 | 0 MHz - 26500 MHz RF/MICROWAVE SGL POLE DOUBLE THROW SWITCH, 3 dB INSERTION LOSS |
| HMMC-2027 | 0 MHz - 26500 MHz RF/MICROWAVE SGL POLE DOUBLE THROW SWITCH, 3 dB INSERTION LOSS |
| HMMC-3040 | 20000 MHz - 43000 MHz RF/MICROWAVE DOUBLE BALANCED MIXER, 12 dB CONVERSION LOSS-MAX |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HMMC-2006 | 制造商:AGILENT 制造商全稱:AGILENT 功能描述:DC-6 GHz Unterminated SPDT Switch |
| HMMC-2007 | 制造商:Agilent Technologies 功能描述:RF SWIT SPDT DC TO 8GHZ 38DB CHIP - Gel-pak, waffle pack, wafer, diced wafer on film |
| HMMC-2027 | 制造商:Agilent Technologies 功能描述:RF SWIT SPDT 0MHZ TO 26.5GHZ 27DB CHIP - Gel-pak, waffle pack, wafer, diced wafer on film |
| HMMC-3002 | 制造商:Agilent Technologies 功能描述:PRESCALER 5V 1/2 16000MHZ CHIP - Gel-pak, waffle pack, wafer, diced wafer on film |
| HMMC-3004 | 制造商:Agilent Technologies 功能描述:PRESCALER 5V 1/4 16000MHZ CHIP - Gel-pak, waffle pack, wafer, diced wafer on film |
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