參數(shù)資料
型號: MC68176
廠商: Motorola, Inc.
英文描述: 2-bit A/D Converter(2位A/D轉(zhuǎn)換器)
中文描述: 2位A / D轉(zhuǎn)換器(2位的A / D轉(zhuǎn)換器)
文件頁數(shù): 25/29頁
文件大?。?/td> 235K
代理商: MC68176
Preliminary
MOTOROLA
MC68176 Technical Data Sheet
A-1
APPENDIX A
DESCRIPTION OF OPERATION
OPERATIONAL DESCRIPTION
The MC68176 is a four-level audio band 2-bit A/ D symbol decoder for the FLEX
paging system. The input signal to the ADIN pin is generated by a FLEX RF receiver.
There are four amplitude levels, which represent four unique output digital codes.
The digital levels are defined relative to the peak and valley voltages of the signal.
The ideal digital transition levels are at the following thresholds:
Upper Threshold = (Peak
Valley)
×
5 / 6
+
Valley
Middle Threshold = (Peak
Valley)
×
1 / 2
+
Valley
Lower Threshold = (Peak
Valley)
×
1 / 6
+
Valley
The Gray scale regions are shown in
Table A-1
on page A-2.
Figure A-1
ADIN Analog Input Signal
Peak
Valley
5/6
1/2
1/6
AA1297
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