參數(shù)資料
型號: ADSP-21MSP59
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字信號處理
英文描述: DSP Microcomputer(DSP 微計算機)
中文描述: 24-BIT, 13 MHz, OTHER DSP, PQFP100
封裝: METRIC, PLASTIC, TQFP-100
文件頁數(shù): 36/40頁
文件大?。?/td> 392K
代理商: ADSP-21MSP59
REV. 0
–36–
ADSP-21msp58/59
CAPACIT IVE LOADING
Figures 26 and 27 show the capacitive loading characteristics of
the ADSP-21msp58/59.
C
L
– pF
R
28
0
25
175
50
75
100
125
150
24
16
12
8
4
20
V
DD
= 4.5V
Figure 26. Typical Output Rise Time vs. Load Capacitance,
C
L
(at Maximum Ambient Operating Temperature)
C
L
– pF
+14
–4
+12
+6
+2
NOMINAL
–2
+10
+8
+4
25
175
50
75
100
125
150
V
Figure 27. Typical Output Valid Delay or Hold vs. Load
Capacitance, C
L
(at Maximum Ambient Operating
Temperature)
T E ST CONDIT IONS
Digital
Figure 28 shows the voltage reference levels and Figure 29
shows the equivalent device loading for the ac measurements.
3.0V
1.5V
0.0V
2.0V
1.5V
0.8V
INPUT
OUTPUT
Figure 28. Voltage Reference Levels for AC Measure-
ments (Except Output Enable/Disable)
50pF
TO
OUTPUT
PIN
I
OH
I
OL
+1.5V
Figure 29. Equivalent Device Loading for AC Measure-
ments (Including All Fixtures)
Analog
Figure 30 shows the analog test conditions.
2200pF
NPO
1.0μF
VIN
NORM
2.2k
2200pF
NPO
1.0μF
VIN
AUX
2.2k
1.0μF
DECOUPLE
0.1μF
REF_CAP
10μF
Figure 30. Analog Test Conditions
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