NJM2597

更新时间： 2024-11-20 22:54:27

品牌	Logo	应用领域
NJRC		输入元件
页数	文件大小	规格书
16页	249K
描述
455kHz INPUT FM IF DEMODULATOR

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中文翻译

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数据手册

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NJM2597 数据手册

NJM2590/97

455kHz INPUT FM IF DEMODULATOR

ꢀ GENERAL DESCRIPTION

ꢀ PACKAGE OUTLINE

The NJM2590 and NJM2597 are low current FM IF demodulator

ICs with 455kHz IF input, which operate from 1.6V supply.

The NJM2590/97 contain the minimum functions required to

FM IF demodulator, that is, IF amplifier, quadrature detector,

LPF amplifier, FSK comparator, RSSI, and RSSI comparator.

It offers unmatched design flexibility.

NJM2590V/97V

ꢀ FEATURES

ꢁ

Low Operating Voltage

1.6V to 5.5V

ꢁ

Low Operating Current

IF Input Frequency

RSSI Comparator

550uA at V⁺=1.8V

455kHz (standard)

The Range of Linear Area on RSSI Output versus IF Input Characteristics

NJN2590

NJM2597

Bipolar Technology

Package Outline

IF Input level=25 to 60 dBuVEMF (reference value)

IF Input level=35 to 85 dBuVEMF (reference value)

ꢁ

SSOP14

ꢀ BLOCK DIAGRAM

V⁺

LPF

OUT

CARRIER

SENSE

CHARGE

SENSE RSSI

LEVEL OUT

FSK

OUT

RSSI

COMP

FSK

COMP

CHARGE

QUAD DET

RSSI

IF AMP

LPF

GND

DEC

IF IN

FSK QUAD

REF IN

OUT

LPF

Ver.2004-08-25

- 1 -

12 3 4 5 6 7...16

中文翻译

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