參數(shù)資料
型號: P89LPC924
廠商: NXP Semiconductors N.V.
英文描述: 8-bit microcontrollers with accelerated two-clock 80C51 core 4 kB/8 kB 3 V low-power Flash with 8-bit A/D converter
中文描述: 8 -加速雙位單片機(jī)80C51的時鐘4 KB的核心/ 8 KB的3伏的低功耗Flash 8位A / D轉(zhuǎn)換器
文件頁數(shù): 18/49頁
文件大小: 233K
代理商: P89LPC924
Philips Semiconductors
P89LPC924/925
8-bit microcontrollers with accelerated two-clock 80C51 core
Product data
Rev. 03 — 15 December 2004
18 of 49
9397 750 14471
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
8.9 A/D converter
8.9.1
General description
The P89LPC924/925 has an 8-bit, 4-channel multiplexed successive approximation
analog-to-digital converter module. A block diagram of the A/D converter is shown in
Figure 5
. The A/D consists of a 4-input multiplexer which feeds a sample-and-hold
circuit providing an input signal to one of two comparator inputs. The control logic in
combination with the successive approximation register (SAR) drives a
digital-to-analog converter which provides the other input to the comparator. The
output of the comparator is fed to the SAR.
Fig 5.
ADC block diagram.
+
COMP
DAC1
SAR
8
INPUT
MUX
CONTROL
LOGIC
CCLK
002aaa791
相關(guān)PDF資料
PDF描述
P89LPC925 8-bit microcontrollers with accelerated two-clock 80C51 core 4 kB/8 kB 3 V low-power Flash with 8-bit A/D converter
P89LPC930 8-bit microcontrollers with two-clock 80C51 core 4 kB/8 kB 3 V Flash with 256-byte data RAM
P89LPC933 8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB 3 V byte-erasable Flash with 8-bit A/D converters
P89LPC934 8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB 3 V byte-erasable Flash with 8-bit A/D converters
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