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 MAX261BCWG-T and MAX262 and a center frequency (f0) range of 7.5kHz. The MAX261BCWG-T 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.
Charakterisierung
- 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
Anwendungsbereiche
- μP-Tuned Filters
- Adaptive Filters
- Anti-Aliasing Filters
- Digital Signal Processing (DSP)
- Phase-Locked Loops (PLLs)
- Signal Analysis
(Produktbild: Diagramm)
Technische Parameter
-
Anzahl von Kanälen
-
2
-
Cutoff Frequency
-
57 kHz
-
Supply Voltage Max
-
12.6 V
-
Supply Voltage Min
-
4.74 V
-
Maximale Betriebstemperatur
-
+ 70 C
-
Montageart
-
SMD/SMT
-
Verpackung / Koffer
-
SOIC-24 Wide
-
Verpackung
-
Reel
-
Minimale Betriebstemperatur
-
0 C
-
Betriebsspannung
-
5 V
MAX261BCWG-T Datasheet
-
MAX261 data sheet for guidance
Herunterladen von