MSFS

MSFS MSI | Alldatasheet

Document overview

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Technical content

Features

Six Filter Types In One Package No External Components Switched-Capacitor Filters Low Power Operation Low Voltage Operation Input Multiplexor Adjustable Gain 0, 10 or 20 dB Small Package Size Low Cost On Chip Power Save Pin ANSI Compatible Bandpass

Applications

Lowpass Responses Bandpass Responses Web Site “www.mix-sig.com” © 2001 Mixed Signal Integration 1

MSFS1/MSFS2/MSFS3/MSFS4/MSFS5/MSFS6 Selectable Lowpass/Bandpass Filter Data Sheet (VDD = +5.0V, T = 25 C)o Web Site “www.mix-sig.com” © 2001 Mixed Signal Integration 2 PARAMETERPARAMETER SYMBOLSYMBOL CONDITIONSCONDITIONS MINMIN TYPTYP MAXMAX UNITSUNITS DC SpecificationsDC Specifications Operating Voltage VDD 2.7 5 5.5 V Supply Current IDD MSFS1, MSFS2, MSFS5 1 1.5 mA Supply Current IDD MSFS3, MSFS4, MSFS6 200 300 uA Power Down Current IPD MSFS2, MSFS4, PD = 1 150 uA AC SpecificationsAC Specifications Gain Av -0.5 0 0.5 dB Noise To 1/2 Sample 250 uVrms Distortion THD A weighted -72 dB Signal Swing 1 kHz 4 4.5 V p-p Input Impedance ZIN 1 Mohm Output Drive Io 1 mA Output Impedance Zo 500 ohm Output Capacitive Load 25 pF Clock to Corner MSFS5, MSFS6 99 100 101 Clock to Corner MSFS1, MSFS3 49.5 50 50.5 Clock to Corner MSFS2, MSFS4, Fo=1 99 100 101 Clock to Corner MSFS2, MSFS4, Fo=0 49.5 50 50.5 Center Frequency Range Fo MSFS1, MSFS2, MSFS5 0.001 20 kHz Center Frequency Range Fo MSFS3, MSFS4, MSFS6 0.001 3 kHz RippleRipple Elliptic Lowpass 0.2 dB Full Octave 0.2 dB Third Octave 0.2 dB Sixth Octave 0.2 dB Stop Band RejectionStop Band Rejection Elliptic Lowpass 80 dB Bessel Lowpass 65 dB 40 dB Bandwidth40 dB Bandwidth Full Octave Normalized Fo 0.3 3 Third Octave Normalized Fo 0.6 1.67 Sixth Octave Normalized Fo 0.76 1.32 Bandpass QBandpass Q Full Octave Q Q 1.5 Third Octave Q 4.5 Sixth Octave Q 9

0 Butterworth Full Octave

1 Bessel Third Octave

2 Elliptic Sixth Octave

The filter type is selected using the two filter select pins, TYPE and FSEL, FSEL is a CMOS level pin that selects lowpass or bandpass (lowpass = 0, bandpass = 1). TYPE Is a tertiary control pin that selects the filter response. State 0 is VSS, state 1 is GND and state 2 is VDD. MSFS1/MSFS2/MSFS3/MSFS4/MSFS5/MSFS6 Selectable Lowpass/Bandpass Filter Data Sheet 1. TYPE Filter Response Select Pin. 2. S2 Input Multiiplexor Select Pin 3. CLK Clock Input 4. G Gain Select Pin 5. VDD Positive Power Supply, Typically 2.5 Volts for Split Supply 5.0 Volts for Single SuppLy 6. PD Power Down Pin, CMOS level, Hi = Power Down 7, VSS Negative Power Supply, Typically -2.5 Volts for Split Supply. 0 Volts for Single Supply 8. F0 Clock to Corner Select Pin 9. GND GND Pin, OV for Split Supplies

2.5 Volts Typical for Single Supply

1. IN1 Input 1, Select Code 00 11. IN2 Input 2, Select Code 01 12. IN3 Input 3, Select Code 10 13. IN4 Input 4, Select Code 11 14. FSEL Selects Filter. O = Low Pass, 1 = Bandpass 15. Out Filter Output 16. S1 Input Multiplexor Select Pin Pin Configuration The Gain control pin G is a tertiary control pin where state 0 is VSS, state 1 is GND level and state 2 is VDD. G Gain

0 OdB

The frequency control pin F0 is a CMOS level pin where high is clock to corner of 100 to 1 (200 to 1 for Bessel) and low is clock to corner of 50 to 1 (100 to 1 for Bessel). FSEL IN OUT GND TYPE VSS CLK 5 VDD TYPE S1 S2 OUT CLK FSEL G IN4 VDD IN3 PD IN2 VSS IN1 F0 GND

8 Pin

16 Pin

Web Site “www.mix-sig.com” © 2001 Mixed Signal Integration 3

MSFS1/MSFS2/MSFS3/MSFS4/MSFS5/MSFS6 Selectable Lowpass/Bandpass Filter Data Sheet Web Site “www.mix-sig.com” © 2001 Mixed Signal Integration 4 VCC 100nF FILTER_OUTPUT LOWPASS_BANDPASS 47kohm 47kohm C2100nF FILTER_INPUT C6 100nF MSFS1_3_5_6 FSEL OUT TYPE CLK IN GND VSS VDDV1 300kHz 5V Typical Application-Single Supply Operation

MSFS1/MSFS2/MSFS3/MSFS4/MSFS5/MSFS6 Selectable Lowpass/Bandpass Filter Data Sheet Web Site “www.mix-sig.com” © 2001 Mixed Signal Integration 5 SELECT3_4 0_10_20dB VCC POWERDOWN 50_100 100nF SELECT_1_2 FILTER_OUTPUT LOWPASS_BANDPASS 47kohm 47kohm C2100nF INPUT_4 INPUT_3 INPUT_2 INPUT_1 C3 100nF C4 100nF C5 100nF C6 100nF 1MHz 5V MSFS2_4 TYPE CLK G VDD PD VSS FO OUT FSEL IN4 IN3 IN2 IN1 GND Typical Application-Single Supply Operation

MSFS1/MSFS2/MSFS3/MSFS4/MSFS5/MSFS6 Selectable Lowpass/Bandpass Filter Data Sheet Web Site “www.mix-sig.com” © 2001 Mixed Signal Integration 6 2.5V VDD C1100nF FILTER_OUTPUT LOWPASS_BANDPASS C2100nF FILTER_INPUT -2.5V VSS P2V5_N2V5_300kHz MSFS1_3_5_6 FSEL OUT TYPE CLK IN GND VSS VDD Typical Application-Dual Supply Operation

MSFS1/MSFS2/MSFS3/MSFS4/MSFS5/MSFS6 Selectable Lowpass/Bandpass Filter Data Sheet Web Site “www.mix-sig.com” © 2001 Mixed Signal Integration 7 SELECT3_4 0_10_20dB 2.5V VDD POWERDOWN 50_100 100nF SELECT_1_2 FILTER_OUTPUT LOWPASS_BANDPASS C2100nF INPUT_4 INPUT_3 INPUT_2 INPUT_1 MSFS2_4 TYPE CLK G VDD PD VSS FO OUT FSEL IN4 IN3 IN2 IN1 GND -2.5V VSS P2V5_N2V5_300kHz Typical Application-Dual Supply Operation

MSFS1/MSFS2/MSFS3/MSFS4/MSFS5/MSFS6 Selectable Lowpass/Bandpass Filter Data Sheet SCF Section Three SCF Section One Input MUX Filter and Clock Select (TYPE, FSEL, Fo) SCF Section Two Single Pole Lowpass Buffer Adjustable Gain IN1 IN2 IN3 IN4 G Out o Input Selection The input is selected using the Input Select Pins S1 and S2. S2 S1 Input 0 0 1 0 1 2 1 0 3 1 1 4 Digital Levels All the clock and control pins (except TYPE and G) are referenced between GND and VDD. In single supply applications, the digital levels should be CMOS levels from VSS to VDD. In dual supply systems, the digital levels should be CMOS levels from GND to VDD. Part Number Package Clock to Corner Ratio 50 or 100 50 or 100 100 100 50 or 100 50 or 100 100 100 MSFS1P 8 Pin DIP MSFS2P 16 Pin DIP MSFS3P 8 Pin DIP MSFS4P 16 Pin DIP MSFS5P 8 Pin DIP MSFS6P 8 Pin DIP MSFS1S 8 Pin SOIC MSFS2S 16 Pin SOIC MSFS3S 8 Pin SOIC MSFS4S 16 Pin SOIC MSFS5S 8 Pin SOIC MSFS6S 8 Pin SOIC Absolute Maximum Ratings Power Supply Voltage +6V Storage Temperature -60 to +150 C Operating Temperature 0 to 70 C Web Site “www.mix-sig.com” © 2001 Mixed Signal Integration 8 Mixed Signal Integration Corporation reserves the right to change any product or specification without notice at any time. Mixed Signal Integration products are not designed or authorized for use in life support systems. Mixed Signal Integration assumes no responsibility for errors in this docu- ment.