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參數(shù)資料
| 型號： | OP179GRTZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 6/16頁 |
| 文件大小： | 0K |
| 描述： | IC OPAMP GP R-R 5MHZ SOT23-5 |
| 標準包裝： | 1 |
| 放大器類型： | 通用 |
| 電路數(shù)： | 1 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 3 V/µs |
| 增益帶寬積： | 5MHz |
| 電流 - 輸入偏壓： | 300nA |
| 電壓 - 輸入偏移： | 5000µV |
| 電流 - 電源： | 3.75mA |
| 電流 - 輸出 / 通道： | 50mA |
| 電壓 - 電源，單路/雙路(±)： | 4.5 V ~ 12 V，±2.25 V ~ 6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SC-74A，SOT-753 |
| 供應(yīng)商設(shè)備封裝： | SOT-23-5 |
| 包裝： | 剪切帶 (CT) |
| 其它名稱： | OP179GRTZ-REEL7CT |
OP179/OP279
–14–
REV. G
References on Active Filters and Active Crossover Networks
1. Sallen, R.P.; Key, E.L., “A Practical Method of Designing
RC Active Filters,” IRE Transactions on Circuit Theory, Vol.
CT-2, March 1955.
2. Huelsman, L.P.; Allen, P.E., Introduction to the Theory and
Design of Active Filters, McGraw-Hill, 1980.
3. Zumbahlen, H., “Chapter 6: Passive and Active Analog
Filtering,” within 1992 Analog Devices Amplifier Applications
Guide.
4. Zumbahlen, H., “Speaker Crossovers,” within Chapter 8 of
1993 Analog Devices System Applications Guide.
5. Linkwitz, S., “Active Crossover Networks for Noncoincident
Drivers,” JAES, Vol. 24, #1, Jan/Feb 1976.
The crossover example frequency of 500 Hz can be shifted lower
or higher by frequency scaling of either resistors or capacitors. In
configuring the circuit for other frequencies, complementary LP/
HP action must be maintained between sections, and component
values within the sections must be in the same ratio. Table II
provides a design aid to adaptation, with suggested standard
component values for other frequencies.
Table II. RC Component Selection for Various Crossover
Frequencies
R1/C1 (U1A)
*
Crossover Frequency (Hz)
R5/C3 (U1B)
**
100
160 k
/0.01 F
200
80.6 k
/0.01 F
319
49.9 k
/0.01 F
500
31.6 k
/0.01 F
1 k
16 k
/0.01 F
2 k
8.06 k
/0.01 F
5 k
3.16 k
/0.01 F
10 k
1.6 k
/0.01 F
Table notes (applicable for
α = 2).
** For SK stage U1A: R1 = R2, and C1 = C2, etc.
** For MFB stage U1B: R6 = R5, R7 = R5/2, and C4 = 2C3.
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