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ML13145 Datasheet(PDF) 7 Page - LANSDALE Semiconductor Inc.

Part # ML13145
Description  UHF Wideband Receiver Subsystem
PDF  17 Pages
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Manufacturer  LANSDALE [LANSDALE Semiconductor Inc.]
Direct Link  http://www.lansdale.com
Logo LANSDALE - LANSDALE Semiconductor Inc.

ML13145 Datasheet(HTML) 7 Page - LANSDALE Semiconductor Inc.

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Issue 0
LANSDALE Semiconductor, Inc.
ML13145
Pin
Symbol/Type
Description
Description
8VEE
VCC
11
VEE, Negative Supply Voltage
9
PRSCout
PRSC Out
9
VEE
8
VCC
1.0 mA
Prescaler Output
The prescaler output provides typically 500 mVpp
drive to the fin pin of a PLL synthesizer. Conjugately
matching the interface will increase the drive
delivered to the PLL input.
10
MC
VEE
MC
10
Dual Modulus Control Current Input
This requires a current input of typically 200 µApp.
11, 12
VCC
17
VCC, Positive Supply
VCC pin is taken to the incoming positive battery or
regulated dc voltage through a low impedance trace
on the PCB. It decoupled to VEE ground at the pin
of the IC.
14
LNA In
LNAout
VEE
15, 16
3
LNA In
The input is the base of the common emitter
transistor. Minimum external matching is required to
optimize the input return loss and gain.
13, 15,
& 16
VEE
2.0 mA
Vref2
Vref1
VEE
13
LNAin
14
VCC
11,12
VEE, Negative Supply
VEE pin is taken to an ample dc ground plane
through a low impedance path. The path should be
kept as short as possible. A minimum two sided
PCB is recommended so that ground returns can
be easily made through via holes.
17
LNAout
CC
LNA Out
The output is from the collector of the cascode
transistor amplifier. The output may be conjugately
matched with a shunt L (needed to dc bias the open
collector), and series L and C network.
19
Mxr1In
LinAdj1
20
VCC
1st Mixer Input
The mixer input impedance is broadband 50 Ω for
applications up to 2.4 GHz. It easily interfaces with
a RF ceramic filter.
20
Lin Adj1
Mxr1 In
19
450
µA
1st Mixer Linearity Control
The mixer linearity control circuit accepts
approximately 0 to 300 µA control current to set the
dynamic range of the mixer. An Input Third Order
Intercept Point, IIP3 of 17 dBm may be achieved at
300 µA of control current.



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