參數(shù)資料
型號： ADSP-2185NKCAZ-320
廠商： Analog Devices Inc
文件頁數(shù)： 17/48頁
文件大小： 0K
描述： IC DSP 16BIT 80MHZ 144CSPBGA
標(biāo)準(zhǔn)包裝： 1
系列： ADSP-21xx
類型： 定點(diǎn)
接口： 主機(jī)接口，串行端口
時鐘速率： 80MHz
非易失內(nèi)存： 外部
芯片上RAM： 80kB
電壓 - 輸入/輸出： 1.8V，2.5V，3.3V
電壓 - 核心： 1.80V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 144-LFBGA，CSPBGA
供應(yīng)商設(shè)備封裝： 144-CSBGA（10x10）
包裝： 托盤
Rev. A
|
Page 24 of 48
|
August 2006
ADSP-218xN
ESD DIODE PROTECTION
During the power-up sequence of the DSP, differences in the
ramp-up rates and activation time between the two supplies can
cause current to flow in the I/O ESD protection circuitry. To
prevent damage to the ESD diode protection circuitry, Analog
Devices recommends including a bootstrap Schottky diode.
The bootstrap Schottky diode is connected between the core
and I/O power supplies, as shown in Figure 17. It protects the
ADSP-218xN processor from partially powering the I/O supply.
Including a Schottky diode will shorten the delay between the
supply ramps and thus prevent damage to the ESD diode pro-
tection circuitry. With this technique, if the core rail rises ahead
of the I/O rail, the Schottky diode pulls the I/O rail along with
the core rail.
POWER DISSIPATION
To determine total power dissipation in a specific application,
the following equation should be applied for each output: C
VDD
2
f
where:
C = load capacitance.
f = output switching frequency.
Example:
In an application where external data memory is used
and no other outputs are active, power dissipation is calculated
as follows:
Assumptions:
External data memory is accessed every cycle with 50% of
the address pins switching.
External data memory writes occur every other cycle with
50% of the data pins switching.
Each address and data pin has a 10 pF total load at the pin.
Application operates at VDDEXT = 3.3 V and tCK = 30 ns.
Total Power Dissipation = PINT + (C
VDDEXT
2
f)
P INT = internal power dissipation from Figure 22 on Page 27.
(C
VDDEXT
2
f) is calculated for each output, as in the exam-
ple in Table 13.
Figure 17. Dual Voltage Schottky Diode
I/O VOLTAGE
REGULATOR
CORE
VOLTAGE
REGULATOR
VDDEXT
VDDINT
ADSP-218xN
DC INPUT
SOURCE
Table 13. Example Power Dissipation Calculation1
Parameters
No. of Pins
× C (pF)
× VDDEXT
2 (V)
× f (MHz)
PD (mW)
Address
7
10
3.32
20.0
15.25
Data Output, WR
910
3.3
2
20.0
19.59
RD
110
3.3
2
20.0
2.18
CLKOUT, DMS
210
3.3
2
40.0
8.70
45.72
1 Total power dissipation for this example is PINT + 45.72 mW.
相關(guān)PDF資料
PDF描述
LSM2-T/16-W3-C CONV DC/DC 52.8W 16A 5V SMD
GCM18DCSS CONN EDGECARD 36POS DIP .156 SLD
TAJF157K010RNJ CAP TANT 150UF 10V 10% 2312
GCM18DCMS CONN EDGECARD 36POS .156 WW
ADSP-BF526KBCZ-4 IC DSP CTRLR 400MHZ 289CSPBGA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADSP-2185NKST-320 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 80MHz 80MIPS 100-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:16K PM/16K DM RAM,16-BIT, 80 MIPS, 1.8V - Bulk 制造商:Analog Devices 功能描述:Digital Signal Processor IC Supply Volta
ADSP-2185NKSTZ-320 功能描述:IC DSP CONTROLLER 16BIT 100LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數(shù)字式信號處理器） 系列:ADSP-21xx 標(biāo)準(zhǔn)包裝:40 系列:TMS320DM64x, DaVinci™ 類型:定點(diǎn) 接口:I²C，McASP，McBSP 時鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:160kB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:0°C ~ 90°C 安裝類型:表面貼裝 封裝/外殼:548-BBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:548-FCBGA（27x27） 包裝:托盤 配用:TMDSDMK642-0E-ND - DEVELPER KIT W/NTSC CAMERA296-23038-ND - DSP STARTER KIT FOR TMS320C6416296-23059-ND - FLASHBURN PORTING KIT296-23058-ND - EVAL MODULE FOR DM642TMDSDMK642-ND - DEVELOPER KIT W/NTSC CAMERA
ADSP-2185NKSTZ-3202 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer
ADSP2186 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer
ADSP-2186 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

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(jìn)入我的后臺，查看報(bào)價

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

*
*
*