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ATR4252-RAPW Datasheet(PDF) 2 Page - ATMEL Corporation

No. de pieza ATR4252-RAPW
Descripción Electrónicos  All-in-One IC Solution for Active Antennas
PDF  10 Pages
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Fabricante Electrónico  ATMEL [ATMEL Corporation]
Página de inicio  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATR4252-RAPW Datasheet(HTML) 2 Page - ATMEL Corporation

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2
9154AS–AUDR–09/09
ATR4252 [Preliminary]
2.
Pin Configuration
Figure 2-1.
Pinning VQFN 4x5 / 28L
Table 2-1.
Pin Description
Pin
Symbol
Function
1
ANTENNA SENSE
Antenna sense input
2
VS FILTER
Supply voltage filter input
3
VSTART
Comparator input of voltage detector
4
OVDET
Overvoltage detection input
5
VREGO
Output of voltage regulator
6
AMTC1
AM AGC time-constant capacitance 1
7
AMTC2
AM AGC time-constant capacitance 2
8
AMDET
Level detector input of AM-AGC
9
GND1
Ground AM
10
AMOUT
AM output, impedance matching
11
VS
Supply voltage
12
FMTC
FM AGC time constant
13
FMDET
Level detector input of FM-AGC
14
FMC
Collector of FM amplifier (NPN)
15
FMPD
FM AGC output for pin diode
16
FME
FM amplifier emitter(NPN)
17
FMB
FM amplifier base (NPN)
18
FMBIAS
Reference voltage 2.7V FM
19
GND2
Ground FM
FMC
FMDET
FMTC
VS
AMOUT
GND1
AM LNA IN
12
3
4567
8
22
14
13
12
11
10
9
23
24
25
26
27
28
21
20
19
ATR4252
18
17
16
15
AM LNA SOURCE
CASCODE FILTER
AM LNA OUT
AMBIAS
AMBUF IN



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