Depending on power supply scheme, C
參數(shù)資料
型號： AT85C51SND3B1-RTTUL
廠商： Atmel
文件頁數(shù)： 33/119頁
文件大?。?/td> 0K
描述： IC DECODER/ENCODER DGTL 100-LQFP
標準包裝： 90
類型： 音頻編碼器/解碼器
應用： 移動電話，手機，視頻顯示器
電壓 - 電源，數(shù)字： 1.65 V ~ 3.6 V
安裝類型： 表面貼裝
封裝/外殼： 100-LQFP
供應商設備封裝： 100-LQFP（14x14）
包裝： 托盤
20
AT85C51SND3B
7632D–MP3–01/07
Schematic
Figure 6. Regulator Connection
Note:
Depending on power supply scheme, CLV may replace CDC capacitor (see Figure 8).
Low Voltage DC-DC in
AT85C51SND3B2
The low voltage output DC-DC converter supplies power to the internal device and
external devices through LVDD power pin. It operates from a single AAA battery. Its
nominal voltage output is 1.8V.
DC-DC Start-Up
DC-DC start-up is done by asserting the DCPWR input until the voltage reaches its
nominal value (see Section “Power Fail Detector”) and firmware starts execution and
sets the DCEN bit in PCON to maintain the DC-DC enabled. DCPWR input can then be
released. As shown in Figure 8 DCPWR input is asserted by pressing a key connected
to BVSS.
Figure 7. DC-DC Start-Up Phase
DC-DC Shut-Down
DC-DC shut-down is done by two different ways:
Clearing the DCEN bit while DCPWR pin is de-asserted
Detecting the presence of an internal or external 3V supply, e.g. when the device is
connected to USB, DC-DC is disabled to save battery power(1).
Note:
1. If DCEN bit is left set, the DC-DC will restart as soon as the USB power supply
disappears.
DC-DC Connection
Figure 8 shows how to connect external components, inductance and components
value along with power characteristics are specified in the section “DC characteristics”.
Figure 8. Battery DC-DC Connection
Note:
Depending on power supply scheme, CDC1 may replace CLV capacitor (see Figure 6).
HVDD
CHV
VSS
RLVDD
CLV
(*)
VSS
DCPWR
DCEN
DC-DC
Start-Up
LVDD
Firmware
Start-Up
DC-DC
On
DC-DC
Off
LVDD
BVDD
BVSS
B
a
tt
e
ry
LDC
DCLI
C
DC1
(*)
VSS
RLVDD
CVSS
C
DC2
DCPWR
相關PDF資料
PDF描述
AT87251G2D-RLTUM IC MCU 8/16BIT 32K OTP 44-VQFP
AT87C51RB2-SLRUM MCU ROMLESS 16K OTP 44-PLCC
AT87C52X2-RLRUM MCU ROMLESS 32X2 3V 44-VQFP
AT87C58X2-SLRUM MCU 8051 32K EPROM 44PLCC
AT87F51-24PI IC MICRO CTRL 24MHZ 40DIP
相關代理商/技術參數(shù)
參數(shù)描述
AT85C51SND3B2-RTTUL 功能描述:音頻 DSP Microcontroller RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube
AT85C51SND3BX 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:MP3 Microcontrollers
AT85C51SND4B1-7FTUL 功能描述:音頻 DSP Microcontroller RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube
AT85DVK-07 功能描述:開發(fā)板和工具包 - 8051 DEV Kit SND3 RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓:
AT85EC5122 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:MICROCONTROLLER WITH USB AND SMART CARD READER INTERFACES
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*