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| Datasheet File OCR Text: |
| 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 Low Operating Voltage Low Operating Current IF Input Frequency RSSI Comparator Bipolar Technology Package Outline SSOP14 1.6V to 4.0V 550A at V =1.8V 455kHz (standard) + NJM2590V ! BLOCK DIAGRAM V+ V+ 14 RSSI RSSI RSSI COMP ADJ OUT 13 12 11 LPF FSK OUT CHARGE OUT 10 9 8 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 -1- NJM2590 [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. -2- |
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