- 您現在的位置：買賣IC網 > PDF目錄362152 > ADSP21CSP01BS200 16-Bit Digital Signal Processor PDF資料下載
參數資料
| 型號： | ADSP21CSP01BS200 |
| 元件分類： | 數字信號處理 |
| 英文描述： | 16-Bit Digital Signal Processor |
| 中文描述： | 16位數字信號處理器 |
| 文件頁數： | 20/64頁 |
| 文件大?。?/td> | 666K |
| 代理商： | ADSP21CSP01BS200 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁當前第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁
ADSP-21xx
–20–
REV. B
T E ST CONDIT IONS
Figure 14 shows voltage reference levels for ac measurements.
Figure 14. Voltage Reference Levels for AC Measurements
(Except Output Enable/Disable)
Output Disable T ime
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. T he
output disable time (t
DIS
) is the difference of t
MEASURED
and
t
DECAY
, as shown in Figure 15. T he time t
MEASURED
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.
T he decay time, t
DECAY
, is dependent on the capacitative load,
C
L
, and the current load, i
L
, on the output pin. It can be
approximated by the following equation:
t
DECAY
=
C
L
×
0.5
V
i
L
from which
t
DIS
=
t
MEASURED
–
t
DECAY
is calculated. If multiple pins (such as the data bus) are dis-
abled, the measurement value is that of the last pin to stop
driving.
Output E nable T ime
Output pins are considered to be enabled when they have made
a transition from a high-impedance state to when they start
driving. T he output enable time (t
E NA
) is the interval from
when a reference signal reaches a high or low voltage level to
when the output has reached a specified high or low trip point,
as shown in Figure 15. If multiple pins (such as the data bus)
are enabled, the measurement value is that of the first pin to
start driving.
SPECIFICATIONS (ADSP-2101/2105/2115/2161/2163)
3.0V
1.5V
0.0V
2.0V
1.5V
0.8V
INPUT
OUTPUT
Figure 15. Output Enable/Disable
TO
OUTPUT
PIN
50pF
+1.5V
I
OH
I
OL
Figure 16. Equivalent Device Loading for AC Measurements
(Except Output Enable/Disable)
2.0V
1.0V
t
ENA
REFERENCE
SIGNAL
OUTPUT
t
DECAY
V
OH
(MEASURED)
OUTPUT STOPS
DRIVING
OUTPUT STARTS
DRIVING
t
DIS
t
MEASURED
V
OL
(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
OH
(MEASURED)
V
OL
(MEASURED)
相關PDF資料 |
PDF描述 |
|---|---|
| ADSP21CSP01KS200 | 16-Bit Digital Signal Processor |
| ADSP-2101BG-100 | ADSP-2100 Family DSP Microcomputers |
| ADSP-2111BG-52 | PC MC 10MBPS UTP/BNC |
| ADSP-2111BG-66 | ADSP-2100 Family DSP Microcomputers |
| ADSP-2101BG-66 | ADSP-2100 Family DSP Microcomputers |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADSP21CSP01KS200 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ADSP-21MOD810-000 | 制造商:Analog Devices 功能描述: |
| ADSP-21MOD815-000 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ADSP-21MOD870-000 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ADSP-21MOD880-000 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復。