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The MAX260/MAX261/MAX262 CMOS dual second-order universal switched-capacitor active filters allow microprocessor control of precise filter functions. No external components are required for a variety of bandpass, lowpass, highpass, notch, and allpass configurations. Each device contains two second-order filter sections that place center frequency, Q, and filter operating mode under programmed control.
An input clock, along with a 6-bit f0 program input, determine the filter's center or corner frequency without affecting other filter parameters. The filter Q is also programmed independently. Separate clock inputs for each filter section operate with either a crystal, RC network, or external clock generator.
The MAX260 has offset and DC specifications superior to the MAX261 and MAX262 and a center frequency (f0) range of 7.5kHz. The MAX261 handles center frequencies to 57kHz, while the MAX262 extends the center frequency range to 140kHz by employing lower clock-to-f0 ratios. All devices are available in 24-pin DIP and small outline packages in commercial, extended, and military temperature ranges.
An input clock, along with a 6-bit f0 program input, determine the filter's center or corner frequency without affecting other filter parameters. The filter Q is also programmed independently. Separate clock inputs for each filter section operate with either a crystal, RC network, or external clock generator.
The MAX260 has offset and DC specifications superior to the MAX261 and MAX262 and a center frequency (f0) range of 7.5kHz. The MAX261 handles center frequencies to 57kHz, while the MAX262 extends the center frequency range to 140kHz by employing lower clock-to-f0 ratios. All devices are available in 24-pin DIP and small outline packages in commercial, extended, and military temperature ranges.
主要特征
- Filter Design Software Available
- Microprocessor Interface
- 64-Step Center Frequency Control
- 128-Step Q Control
- Independent Q and f0 Programming
- Guaranteed Clock to f0 Ratio-1% (A grade)
- 75kHz f0 Range (MAX262)
- Single +5V and ±5V Operation
应用/用途
- µP调节滤波器
- 自适应滤波器
- 抗混叠滤波器
- 数字信号处理(DSP)
- 锁相环(PLL)
- 信号分析
Parametric specs for Active Filters
| Filter Type | Universal |
| Filter Sections | 2 |
| Order Per Filter Section | 2 |
| Highest Cutoff (kHz) (min) | 140 |
| Lowest Cutoff (Hz) (max) | 1 |
| Filter Class | Switched Cap |
| Filter Characteristic | Programmable |
| Program Method | µP Bus |
| Oper. Temp. (°C) | -55 to +125 -40 to +85 0 to +70 |
| Package/Pins | PDIP/24 SOIC (W)/24 |
| Budgetary Price (See Notes) | $12.10 @1k |
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技术文档
| 数据资料 | 可由微处理器编程的通用开关电容滤波器 | Mar 26, 2003 | |
| 应用笔记 | Programmable Universal Filter Implements C-Message Weighting Function |
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参量
Parametric specs for Active Filters
| Filter Type | Universal |
| Filter Sections | 2 |
| Order Per Filter Section | 2 |
| Highest Cutoff (kHz) (min) | 140 |
| Lowest Cutoff (Hz) (max) | 1 |
| Filter Class | Switched Cap |
| Filter Characteristic | Programmable |
| Program Method | µP Bus |
| Oper. Temp. (°C) | -55 to +125 -40 to +85 0 to +70 |
| Package/Pins | PDIP/24 SOIC (W)/24 |
| Budgetary Price (See Notes) | $12.10 @1k |
主要特征
- Filter Design Software Available
- Microprocessor Interface
- 64-Step Center Frequency Control
- 128-Step Q Control
- Independent Q and f0 Programming
- Guaranteed Clock to f0 Ratio-1% (A grade)
- 75kHz f0 Range (MAX262)
- Single +5V and ±5V Operation
应用/用途
- µP调节滤波器
- 自适应滤波器
- 抗混叠滤波器
- 数字信号处理(DSP)
- 锁相环(PLL)
- 信号分析
描述
The MAX260/MAX261/MAX262 CMOS dual second-order universal switched-capacitor active filters allow microprocessor control of precise filter functions. No external components are required for a variety of bandpass, lowpass, highpass, notch, and allpass configurations. Each device contains two second-order filter sections that place center frequency, Q, and filter operating mode under programmed control.
An input clock, along with a 6-bit f0 program input, determine the filter's center or corner frequency without affecting other filter parameters. The filter Q is also programmed independently. Separate clock inputs for each filter section operate with either a crystal, RC network, or external clock generator.
The MAX260 has offset and DC specifications superior to the MAX261 and MAX262 and a center frequency (f0) range of 7.5kHz. The MAX261 handles center frequencies to 57kHz, while the MAX262 extends the center frequency range to 140kHz by employing lower clock-to-f0 ratios. All devices are available in 24-pin DIP and small outline packages in commercial, extended, and military temperature ranges.
An input clock, along with a 6-bit f0 program input, determine the filter's center or corner frequency without affecting other filter parameters. The filter Q is also programmed independently. Separate clock inputs for each filter section operate with either a crystal, RC network, or external clock generator.
The MAX260 has offset and DC specifications superior to the MAX261 and MAX262 and a center frequency (f0) range of 7.5kHz. The MAX261 handles center frequencies to 57kHz, while the MAX262 extends the center frequency range to 140kHz by employing lower clock-to-f0 ratios. All devices are available in 24-pin DIP and small outline packages in commercial, extended, and military temperature ranges.
技术文档
| 数据资料 | 可由微处理器编程的通用开关电容滤波器 | Mar 26, 2003 | |
| 应用笔记 | Programmable Universal Filter Implements C-Message Weighting Function |
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