NJM2593 datasheet(7/16 Pages) NJRC

Part #	NJM2593

Description	50MHz INPUT MIXER AND 450kHz FM IF DEMODULATOR IC

PDF	16 Pages

Scroll/Zoom	100%

Manufacturer	NJRC [New Japan Radio]

Direct Link	http://www.jrc.co.jp/eng/index.html

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7 / 16 page

NJM2593

Ver.2004-08-25

-7-

Pin No.

SYMBOL

EQUIVARENT CIRCUIT

VOLTAGE

FUNCTION

FSK VREF2

0.44V

FSK Reference Voltage Output

This pin usually keeps open.

This fixed output voltage may be

available for the FSK reference

voltage of wave shaping comparator

by connecting to pin7. This usage

is effective in shaping the data

signal with continuous bits of the

same polarity, and discussed in

another document related to

applications information.

IF OUT

1.14V

IF Output

An external phase - shifting

capacitor is connected between

pin9 and pin10.

QUAD IN

1.99V

Quadrature Detector Input

An external phase - shifting coil or

ceramic discriminator is connected.

AF OUT

0.44V

FM Demodulated Signal Output

An external 3rd order multiple feed

- back filter (RC filter) is connected

between pin11 and pin13.

V+

NJM2593 Datasheet(PDF) 7 Page - New Japan Radio