參數(shù)資料
型號(hào)： UPC1876GT
廠商： NEC Corp.
英文描述： US MTS DECODER
中文描述： 美國(guó)的多邊貿(mào)易體制解碼器
文件頁(yè)數(shù)： 5/40頁(yè)
文件大?。?/td> 309K
代理商： UPC1876GT
μ
PC1876
5
Data Sheet S11666EJ4V0DS00
CONTENTS
1.
INTERNAL EQUIVALENT CIRCUITS............................................................................................
6
2.
FUNCTION OF EACH BLOCK ..................................................................................................... 13
2.1 Stereo Demodulation Block................................................................................................... 14
2.2 SAP Demodulation Block....................................................................................................... 15
2.3 dbx Noise Reduction Block ................................................................................................... 15
2.4 Matrix Block ............................................................................................................................ 17
3.
EXPLANATION OF EACH FUNCTION ........................................................................................ 18
3.1 Mode Matrix Table................................................................................................................... 18
3.2 MATRIX MUTE Pin .................................................................................................................. 18
3.3 F-MONAURAL SELECTION Pin ............................................................................................. 19
3.4 STEREO/SAP SWITCH Pin..................................................................................................... 19
3.5 SAP 1/2 SWITCH Pin............................................................................................................... 19
4.
PRECAUTIONS ............................................................................................................................... 20
4.1 Impedance of Input Pins and Output Pins ........................................................................... 20
4.2 Output Load Impedance ........................................................................................................ 20
4.3 Cautions on External Components....................................................................................... 21
4.4 Change of Electrical Characteristics Depending on External Components..................... 21
4.5 BIAS (1.5 V) Pin....................................................................................................................... 21
5.
ADJUSTMENT PROCEDURE ........................................................................................................ 22
5.1 Stereo VCO Adjustment ......................................................................................................... 22
5.2 Filter Adjustment .................................................................................................................... 22
5.3 Separation Adjustment .......................................................................................................... 22
5.4 SAP VCO Adjustment............................................................................................................. 23
5.5 List of Pin Settings in Adjustment ........................................................................................ 23
6.
ELECTRICAL SPECIFICATIONS ................................................................................................... 24
7.
MEASURING CIRCUIT ................................................................................................................... 35
8.
DIFFERENCES BETWEEN THE
μ
PC1876GT AND
μ
PC1872GT ............................................. 36
9.
PACKAGE DRAWING..................................................................................................................... 37
10. RECOMMENDED SOLDERING CONDITIONS............................................................................. 38
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