參數(shù)資料
型號: ATJ2085
廠商: Electronic Theatre Controls, Inc.
英文描述: ATJ2085 is a single-chip for flash-based digital music player
中文描述: ATJ2085是一種單芯片基于閃存的數(shù)字音樂播放器
文件頁數(shù): 16/35頁
文件大小: 609K
代理商: ATJ2085
ATJ2085 DATA SHEET Actions
Copyright 2004 Actions Semiconductor Co., Ltd. All rights reserved.
VER 1.5
Page 15
8/18/2004
There are two pins for mode configurations. One is “DCDIS”; the other is “BATSEL”, the truth
table as follow:
DCDIS BATSEL DC/DC1(VDD) DC/DC2(VCC)
Regulator
Mode descriptions
0
0
Yes
Yes
No
One battery with more external
components, but more efficiency
0
1
No
Yes
Yes
Two battery
1
0
No
Yes
Yes
One
battery
with
less
external
components, but less efficiency
1
1
No
No
Yes
USB power or DC power line-in
The pin of “DCDIS” has an on-chip pull down resistor. There is a built-in super low speed and low
resolution ADC for battery monitor in ATJ2085. The level of minimum battery voltage warning can
be configured by registers; the range is from 0.98V to 1.22V. The voltage level of resetting system
can be controlled by register; the range is from 0.9V to 1.14V.
6
~
7
_
DF
4
~
5
_
DF
4.9 ADC
There are 3 Analog-to-Digital Converters integrated in ATJ2085: 16-bit
Σ
-
ADC is for MIC/FM
Input/Line Input, 8-bit SAR ADC for Line Controller, and 4-bit ADC for Battery Monitor
WWW.MP3JS.COM.CN
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