參數(shù)資料
型號(hào): XE8805AMI028LF
廠商: Semtech
文件頁數(shù): 42/156頁
文件大?。?/td> 0K
描述: IC DAS 16BIT FLASH 8K MTP 64LQFP
標(biāo)準(zhǔn)包裝: 160
系列: XE880x
應(yīng)用: 感測(cè)機(jī)
核心處理器: Coolrisc816?
程序存儲(chǔ)器類型: 閃存(22 kB)
控制器系列: XE8000
RAM 容量: 512 x 8
接口: UART,USRT
輸入/輸出數(shù): 24
電源電壓: 2.4 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
包裝: 托盤
供應(yīng)商設(shè)備封裝: 64-LQFP(10x10)
產(chǎn)品目錄頁面: 585 (CN2011-ZH PDF)
配用: XE8000MP-ND - PROG BOARD AND PROSTART2 CARD
Semtech 2006
www.semtech.com
19-2
XE8805/05A
19.1
Features
8 bit low frequency A/D
On-chip amplifier with 2 terminals MOS output
Current and voltage controlled applications can be implemented
19.2
General description
Figure 19-1. General block diagram
Figure 19-1 shows the general block diagram of the D/A peripheral. It consists of a control block that manages all
communication with the CPU and sets the configuration of the peripheral. The D/A converts the digital data in an
analog output signal. An amplifier is added that can be used to drive the large sensor currents.
19.3
Register map
The bias D/A has two registers.
Pos.
RegDabIn
rw
reset
function
7-0
DabIn(7:0)
rw
0
resetsystem
Data to convert
Table 19-1. RegDabIn
Pos.
RegDabCfg
rw
reset
function
7-2
r
0
Unused
1-0
Enable(1:0)
rw
00
resetsystem
bit 1: enables the amplifier when 1
bit 0: enables the D/A when 1
Table 19-2. RegDabCfg
control
registers
D/
A
amp
MOS
XE8805A – Bias D/A block
DAB R M
DAB AIM
DAB AOM
DAB AOP
DAB AIP
DAB OUT
DAB R P
VBATT
VSS
DabIn
Enable
As the amplifier is attacking a MOS, effective polarity of the feedback loop
depends on load and network.
Not
Recommended
for
New
Designs
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