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NJM2592 数据表(PDF) 7 Page - New Japan Radio

部件名 NJM2592
功能描述  470MHz INPUT MIXER AND 455kHz FM IF DEMODULATOR IC
PDF  16 Pages
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制造商  NJRC [New Japan Radio]
网页  http://www.jrc.co.jp/eng/index.html
标志 NJRC - New Japan Radio

NJM2592 数据表(HTML) 7 Page - New Japan Radio

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NJM2592
Ver.2004-08-25
-7-
Pin No.
SYMBOL
EQUIVARENT CIRCUIT
VOLTAGE
FUNCTION
12
LPF IN
0.55V
Low Pass Filter Input
An external RC components
forms a band pass filter between
pin12 and pin13.
This terminal is biased from pin 11
though an external RC filter.
13
LPF OUT
0.55V
Low Pass Filter Output
14
CHARGE
SW
--
Quick Charge / Discharge
Control
The power supply output voltage
to pin 14 sets up the quick charge
/ discharge circuit.
Hi : ON
Low : OFF
Instead of V+, another power
source can also be used within
the limit of the rated supply
voltage.
15
FSK OUT
--
FSK Output
The FSK comparator is a wave
shaping circuit. A Filter Amplifier
output signal is inverted and wave
shaped. Instead of V+, another
power source can also be used
within the limit of the rated supply
voltage.
16
CARRIER
SENSE
--
Carrier Sense Output
This pin outputs the result of RSSI
comparator by comparing RSSI
output level with an external input
level to pin 18.
12
V+
13
V+
14
300k
V+
15
V+
16



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