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NJM2552 датащи(PDF) 7 Page - New Japan Radio

номер детали NJM2552
подробное описание детали  100MHz INPUT MIXER AND 450kHz FM/AM IF DEMODULATOR IC
PDF  21 Pages
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производитель  NJRC [New Japan Radio]
домашняя страница  http://www.jrc.co.jp/eng/index.html
Logo NJRC - New Japan Radio

NJM2552 датащи(HTML) 7 Page - New Japan Radio

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NJM2552
-7-
Ver.2007-10-24
!
TERMINAL FUNCTION (Ta=25°C , V
+=2.7V , circuit 1)
Pin No.
SYMBOL
EQUIVARENT CIRCUIT
VOLTAGE
FUNCTION
1
OSC (B)
2.66V
2
OSC (E)
1.95V
Oscillator Base /
Oscillator Emitter
Colpitts - type oscillator is formed
with an external oscillator element
of crystal unit or SAW resonator.
Output of an external oscillator
circuit can also input to pin1 or
pin2.
3
MIX OUT
1.75V
Mixer Output
An external 450kHz ceramic filter
is connected. The typical output
impedance is 1.8kΩ.
4
GND
-
--
Ground
5
AM IF IN
1.35V
AM IF Input
This is an AM IF signal input to
AGC amplifier. The typical input
impedance is 10kΩ.
6
AM DEC
1.35V
AM IF Decoupling
This is an AM IF decoupling
terminal for AGC amplifier.
An external decoupling capacitor
is connected to enhance stability.
7
FM IF IN
2.66V
IF Limiter Amplifier Input
This is an input to the IF amplifier
after passing through 450kHz
ceramic filter. The typical input
impedance is 1.8kΩ.
8
FM DEC
2.66V
IF Decoupling
An external decoupling capacitor
is connected to enhance stability.
1
2
22k
2k
170u
V+
GND
200k
1.4k
135u
3
20p
V+
GND
10k
1.24V
6
25u
5
V+
GND
8
7
51k
0.9k 0.9k
80u
2k
V+
GND



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