NJM2590
Under Development
455kHz INPUT FM IF DEMODULATOR IC
!
GENERAL DESCRIPTION
The
NJM2590
is a low current FM IF demodulator IC with 455kHz (standard)
IF input, which operates from 1.6V supply.
The
NJM2590
contains the minimum functions required to FM IF demodulator,
that is, IF amplifier, quadrature detector, active filter, FSK comparator, RSSI, and
RSSI comparator. It offers unmatched design flexibility.
!
PACKAGE OUTLINE
!
FEATURES
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Low Operating Voltage
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Low Operating Current
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IF Input Frequency
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RSSI Comparator
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Bipolar Technology
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Package Outline
SSOP14
1.6V to 4.0V
550碌A(chǔ) at V =1.8V
455kHz (standard)
+
NJM2590V
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!
BLOCK DIAGRAM
V
+
V
+
RSSI RSSI RSSI
COMP ADJ OUT
13
12
11
LPF
FSK
OUT CHARGE OUT
10
9
8
14
FSK COMP
RSSI COMP
RSSI
QUAD DET
IF AMP
LPF
1
IF
IN
2
GND
3
DEC
4
FSK
REF
5
QUAD
IN
6
AF
OUT
7
LPF
IN
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NJM2590V相關(guān)型號(hào)PDF文件下載
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