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What is DR65-0002?

This electronic component, produced by the manufacturer "Tyco Electronics", performs the same function as "Linear Driver".


DR65-0002 Datasheet PDF - Tyco Electronics

Part Number DR65-0002
Description Linear Driver
Manufacturers Tyco Electronics 
Logo Tyco Electronics Logo 


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Linear Driver for PIN Diode
Attenuators
V 4.00
Features
n Linearizes PIN Diode Attenuators Over a Wide
Attenuation Range
n Output Currents up to 12 mA
n Operates with a Single Supply Voltage of +3V to +12V
n Low Quiescent Currents
n Single Control Voltage
n SOW-16, Wide Body Plastic Package
n Test Boards are Available
n Tape and Reel Packaging Available
SOW-16
Description
M/A-COM's DR65-0002 is a break point free driver that
produces a logarithmic output current suitable for
linearizing PIN diode based shunt attenuators. This driver,
in conjunction with customer defined external components,
produces a linear transfer function (dB/V) between the
input control voltage of the driver and the attenuation
output of the PIN attenuator. The DR65-0002 has been
optimized for linearizing M/A-COM’s AT10-0009 or
AT10-0017 attenuators, but will function well with most
types of cathode grounded, PIN attenuators. The driver is
packaged in a SOW-16 package for commercial SMT
applications. A typical schematic for a 30 dB, 7.5 dB/V
linear attenuator is shown in Figure 1.
Circuit Description:
(Reference Figures 1 and 2)
The input divider, R1 and the sum of R2 and R3, sets the
overall transfer function of the circuit. To increase the
transfer function, decrease the Control Voltage and the
value of R1. Varying the value of R4 will optimize the
linearity of the circuit. One can achieve a very linear
transfer function (<± 1 dB/V) by driving the attenuator over
a smaller portion of its dynamic range. In the case of the
AT10-0009 and AT10-0017 attenuators, this would be
limited to a dynamic range of 28 and 25 dB, respectively.
Temperature compensation is a function temperature
coefficient of the thermistor, R3, and the ratio of R2 to R3,
and can only be optimized once the transfer function and
linearity component values have been established.
Package outline conforms to JEDEC standard MS-013AA
Figure 1
+Vcc
Vcontrol
(0 to 4V)
R1
39K
R2 680
14
4
IN
C1
.01 µF
DR65-0002
12
R3
(PTCT)
330 R4
3
360
REF
5
RFin
1,3,4
2
16,14,13
7 ATTENNUATOR
5,6,8
10
9,11,12
NOTES:
TRANSFER FUNCTION IS 7.5 dB/V
Vcontrol IS 0V to 4.0V
+Vcc IS 5.0V ± 5%
R3 IS A POSITIVE TEMPERATURE COEFFICIENT THERMISTOR
ATTENUATOR IS AT10-0009 OR AT10-0017
RFoutput
SCHEMATIC
LINEAR ATTENUATOR


Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for DR65-0002 electronic component.


Information Total 2 Pages
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