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參數資料
| 型號： | ADSP-2186MKST-300 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 數字信號處理 |
| 英文描述： | DSP Microcomputer |
| 中文描述： | 24-BIT, 37.5 MHz, OTHER DSP, PQFP100 |
| 封裝： | METRIC, PLASTIC, TQFP-100 |
| 文件頁數： | 22/40頁 |
| 文件大小： | 288K |
| 代理商： | ADSP-2186MKST-300 |
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REV. 0
–22–
ADSP-2186M
TEST CONDITIONS
Output Disable Time
Output pins are considered to be disabled when they have stopped
driving and started a transition from the measured output high
or low voltage to a high impedance state. The output disable
time (t
DIS
) is the difference of t
MEASURED
and t
DECAY
, as shown
in the Output Enable/Disable diagram. The time is the interval
from when a reference signal reaches a high or low voltage level
to when the output voltages have changed by 0.5 V from the
measured output high or low voltage.
The decay time, t
DECAY
, is dependent on the capacitive load,
C
L
, and the current load, i
L
, on the output pin. It can be
approximated by the following equation:
t
C
i
DECAY
L
L
=
×
0 5
V
from which
t
DIS
=
t
MEASURED
–
t
DECAY
is calculated. If multiple pins (such as the data bus) are disabled,
the measurement value is that of the last pin to stop driving.
1.5V
OUTPUT
INPUT
12.0V
0.8V
Figure 18. Voltage Reference Levels for AC Measure-
ments (Except Output Enable/Disable)
Output Enable Time
Output pins are considered to be enabled when they have made
a transition from a high-impedance state to when they start driving.
The output enable time (t
ENA
) is the interval from when a refer-
ence signal reaches a high or low voltage level to when the output
has reached a specified high or low trip point, as shown Figure
19. If multiple pins (such as the data bus) are enabled, the mea-
surement value is that of the first pin to start driving.
2.0V
1.0V
t
ENA
REFERENCE
SIGNAL
OUTPUT
t
DECAY
V
(MEASURED)
OUTPUT STOPS
DRIVING
OUTPUT
STARTS
DRIVING
t
DIS
t
MEASURED
V
(MEASURED)
V
OH
(MEASURED)
–
0.5V
V
OL
(MEASURED) +0.5V
HIGH-IMPEDANCE STATE. TEST CONDITIONS CAUSE
THIS VOLTAGE LEVEL TO BE APPROXIMATELY 1.5V.
V
(MEASURED)
V
(MEASURED)
Figure 19. Output Enable/Disable
TO
OUTPUT
PIN
50pF
1.5V
I
OH
I
OL
Figure 20. Equivalent Loading for AC Measurements
(Including All Fixtures)
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADSP-2186MKST-300R | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 75MHz 75MIPS 100-Pin LQFP T/R |
| ADSP-2186MKSTZ-300 | 功能描述:IC DSP CONTROLLER 16BIT 100LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數字式信號處理器） 系列:ADSP-21xx 標準包裝:2 系列:StarCore 類型:SC140 內核 接口:DSI，以太網，RS-232 時鐘速率:400MHz 非易失內存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA，FCBGA 供應商設備封裝:431-FCPBGA（20x20） 包裝:托盤 |
| ADSP-2186MKSTZ300R | 功能描述:IC DSP CONTROLLER 16BIT 100LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數字式信號處理器） 系列:ADSP-21xx 標準包裝:2 系列:StarCore 類型:SC140 內核 接口:DSI，以太網，RS-232 時鐘速率:400MHz 非易失內存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA，FCBGA 供應商設備封裝:431-FCPBGA（20x20） 包裝:托盤 |
| ADSP-2186N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ADSP-2184N-ADSP-2189N: DSP Microcomputer Data Sheet (Rev. 0. 10/01) |
| ADSP-2186NBCA-320 | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 80MHz 80MIPS 144-Pin CSP-BGA 制造商:Rochester Electronics LLC 功能描述:8K PM/8K DM RAM,16-BIT,80 MIPS, 1.8V - Bulk |
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