LTC1563-3 Linear Technology, LTC1563-3 Datasheet
LTC1563-3
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LTC1563-3 Summary of contents
Page 1
... DC offset suitable for systems with a resolution bits. The LTC1563-2, with a single resistor value, gives a unity-gain Butterworth response. The LTC1563-3, with a single resistor value, gives a unity-gain Bessel response. The proprietary architecture of these parts allows for a simple resistor ...
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... Single 4.75V, EN pin to logic “low,” Gain = speed (HS) and low power (LP) modes unless otherwise noted. PARAMETER CONDITIONS Specifications for Both LTC1563-2 and LTC1563-3 Total Supply Voltage ( Mode S Total Supply Voltage ( Mode S ...
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... R = 10k S FIL V = 4.75V 10k S FIL 10k S FIL V = 2.7V 100k S FIL V = 4.75V 100k S FIL 100k S FIL Test Frequency = 2.56kHz (0.1 • Test Frequency = 12.8kHz (0.5 • LTC1563-2/LTC1563-3 MIN TYP MAX UNITS 2.35 2.375 2.40 8 1.0 1.8 1.4 2.5 2 2.5 4.3 4.4 0.8 ...
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... 4.75V 100k S FIL Stopband Gain, LP Mode 25.6kHz 4.75V 100k S FIL LTC1563-3 Transfer Function Characteristics Cutoff Frequency Range Mode Cutoff Frequency Range Mode Cutoff Frequency Accuracy, HS Mode f = 25.6kHz C Cutoff Frequency Accuracy, HS Mode f = 256kHz C Cutoff Frequency Accuracy, LP Mode ...
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... A small internal pull-up current source at the EN input defaults the LTC1563 to the shutdown state if the EN pin is left floating . Therefore, the user must connect the EN pin – (or a logic low) to enable the part for normal operation. LTC1563-2/LTC1563-3 + – and V pins. The – + ...
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... LTC1563-2/LTC1563 PIN FUNCTIONS LTC1563-X ANALOG GROUND 2 15 PLANE SA LPB INVA INVB LPA AGND – – 0.1 F SINGLE POINT SYSTEM GROUND Figure 1. Dual Supply Power and Ground Connections W BLOCK DIAGRA ...
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... The LTC1563-2, with a single resistor value, gives a unity-gain filter approximating a Butterworth response. The LTC1563-3, with a single resistor value, gives a unity-gain filter approximating a Bessel (linear phase) response. The proprietary architecture of these parts allows for a simple ...
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... LTC1563-2/LTC1563 APPLICATIONS INFORMATION Capacitive loading on the output reduces the stability of the op amp. If the capacitive loading is sufficiently high, the stability margin is decreased to the point of oscillation at the output. Capacitive loading should be kept below 30pF. Good, tight layout techniques should be maintained at all times. These parts should not drive long traces and must never drive a long coaxial cable ...
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... C C 10k(256kHz/f ) 10.7k(256kHz 10k(256kHz/f ) 10k(256kHz 10k(256kHz/f ) 6.81k(256kHz LTC1563-2/LTC1563 –20 –40 BUTTERWORTH 0.5dB RIPPLE –60 CHEBYSHEV 0.1dB RIPPLE CHEBYSHEV –80 NORMALIZED 1Hz C –90 0 FREQUENCY (Hz) 1563 F03a Figure 3a. Frequency Response 1.2 1.0 ...
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... TIME (s) Figure 4b. Step Response Table 2. Resistor Values, Normalized to 256kHz Cutoff Frequency (f Gain, of the 4th Order LTC1563-3 Lowpass Filter, Is Set to Unity. (Note 1) LP Mode Max Mode Max f C R11 = R21 = R31 = R12 = R22 = R32 = Note 1: The resistor values listed in this table provide good approximations of the listed transfer functions. For the optimal resistor values, higher gain or other transfer functions, use FilterCAD Version 3 ...
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... 80. Frequency Response 10 0 –10 –20 –30 –40 –50 –60 –70 –80 – FREQUENCY (kHz) 1563 TA06 LTC1563-2/LTC1563-3 Frequency Response 100 FREQUENCY (kHz) 1563 TA04 3.3V 0.1 F LTC1563 OUT 154k 15 SA LPB 97.6k ...
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... LTC1563-2/LTC1563-3 U TYPICAL APPLICATIO S Single 3.3V, 256kHz Bessel Lowpass Filter LTC1563 LPB 10k 4 13 INVA INVB 10k 6 11 LPA AGND NC 10k 8 9 – PACKAGE DESCRIPTION 0.015 0.004 (0.38 0.10) 0.007 – 0.0098 0 – 8 TYP (0.178 – ...