參數資料
型號: MAX261BEWG+
廠商: Maxim Integrated Products
文件頁數: 25/26頁
文件大?。?/td> 0K
描述: IC FILTER ACT MPU PROG 24-SOIC
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 30
濾波器類型: 通用開關電容器
頻率 - 截止或中心: 57kHz
濾波器數: 2
濾波器階數: 2nd
電源電壓: 4.74 V ~ 12.6 V,±2.37 V ~ 6.3 V
安裝類型: 表面貼裝
封裝/外殼: 24-SOIC(0.295",7.50mm 寬)
供應商設備封裝: 24-SOIC W
包裝: 管件
MAX260/MAX261/MAX262
Microprocessor Programmable
Universal Active Filters
8
_______________________________________________________________________________________
Step 1—Filter Design
Start with the program “PZ” to determine what type of
filter is needed. This helps determine the type
(Butterworth, Chebyshev, etc.) and the number of poles
for the optimum choice. The program also plots the fre-
quency response and calculates the pole/zero (f0) and
Q values for each second-order section. Each
MAX260/MAX261/MAX262 contains two second-order
sections, and devices can be cascaded for higher
order filters.
MAX260
MAX261*
MAX262*
INA
OUT
IN
5
24
3
1
23
22
(20)14
21
LPA
HPA
BPA
LPB
HPB
BPB
INB
WR
D0
D1
A0
A2
A3
CLKA
CLKB
A1
16(15)
20(19)
6
1
2
3
4
5
6
7
11
24
25
23
22
21
20
19
18
DB-25 MALE PLUG
(BACK VIEW)
12
15(14)
10
7
11
12
9
18(17)
17(16)
CLK IN
TTL
(SEE FIGURE 4)
0.1
F
0.1
F
-5V
+5V
13
V+
V-
GND
*PIN NUMBERS IN ( ) ARE FOR MAX261/MAX262
100
AB$ = "FILTER A" : GOSUB 150 : REM GET DATA FOR SECTION A
110
ADD = 0 : GOSUB 220 : REM WRITE DATA TO THE PRINTER PORT
120
AB$ = "FILTER B" : GOSUB 150 : REM GET DATA FOR B
130
ADD = 32 : GOSUB 220 : REM WRITE DATA TO PRINTER PORT
140
GOTO 100
150
PRINT "MODE (1 to 4, see Table 5) "; AB$; : INPUT M
160
IF M<1 OR M>4 THEN GOTO 150
170
PRINT "CLOCK RATIO (0 to 63, N of Table 2) "; AB$; : INPUT F
180
IF F<0 OR F>63 THEN GOTO 170
190
PRINT "Q (0 to 127, N of Table 3) "; AB$; : INPUT Q
200
IF Q<0 OR Q>127 THEN GOTO 190 ELSE : PRINT
210
RETURN
220
LPRINT CHR$(ADD+M-1); : ADD = ADD+4
230
FOR I = 1 TO 3
240
X = (ADD + (F - 4*INT(F/4))) : LPRINT CHR$(X);
250
F=INT(F/4) : ADD = ADD + 4
260
NEXT I
270
FOR I = 1 TO 4
280
X=(ADD + (Q - 4*INT(Q/4))) : LPRINT CHR$(X);
290
Q=I (Q/4) :: ADD = ADD + 4
300
NEXT I
310
RETURN
Figure 2. Basic Program and Hardware Connections to Parallel Printer Port for “Quick Look” Using a PC
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MAX261BEWG+T 功能描述:有源濾波器 MPU Programmable Universal RoHS:否 制造商:Maxim Integrated 通道數量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube
MAX261BEWG-T 功能描述:有源濾波器 RoHS:否 制造商:Maxim Integrated 通道數量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube
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