Details, datasheet, quote on part number: LMF90
PartLMF90
CategoryAnalog & Mixed-Signal Processing => Filters => Universal Filters
Description4th Order Elliptic Notch Filter (discontinued)
CompanyNational Semiconductor Corporation
DatasheetDownload LMF90 datasheet
Quote
Find where to buy
 
  

 

Features, Applications

The is a fourth-order elliptic notch (band-reject) filter based on switched-capacitor techniques No external components are needed to define the response function The depth of the notch is set using a two-level logic input and the width is programmed using a three-level logic input Two different notch depths and three different ratios of notch width to center frequency may be programmed by connecta b ing these pins to V ground or V Another three-level logic pin sets the ratio of clock frequency to notch frequency An internal crystal oscillator is provided Used in conjunction with a low-cost color TV crystal and the internal clock frequency divider a notch filter can be built with center frequency 180 Hz for rejection of power line interference Several LMF90s can be operated from a single crystal An additional input is provided for an externally-generated clock signal

No external components needed to set response characteristics Notch width attenuation and clock-to-center-frequency ratio independently programmable 14 pin 0 3 wide package

f0 Range to 30 kHz f0 accuracy over full temperature range (max) to 15V Supply voltage range Passband Ripple (typ) 25 dB Attenuation at f0 (typ) 48 dB (selectable) fCLK 3 1 Notch Bandwidth (typ) 55 f0 Output offset voltage (max) 120 mV

Applications
Features
Center frequency set by external clock or on-board clock oscillator
Automatic test equipment Communications Power line interference rejection

Absolute Maximum Ratings (Notes 3) If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications

Soldering Information (Note 4) N Package (Soldering 10 sec ) J Package (Soldering 10 sec 300 C

a 16V Supply Voltage (VS Voltage at any Input or Output 0 3V Input Current at any Pin (Note 5 mA Package Input Current (Note 20 mA

Power Dissipation (Note 1800V 2000V Supply Voltage Range
Operating Ratings (Notes 2 3) Temperature Range TMIN TA s TMAX LMF90CMJ 883
b 5V unless otherwise specified Boldface limits apply for

AC Electrical Characteristics The following specifications apply for TA e TMIN to TMAX all other limits 25 C

LMF90CIN LMF90CMJ Typ (Note 7) 01 Tested Limit (Note 8) Design Limit (Note 9)
2 Center Frequency Range Clock Frequency Range
Hz (Min) MHz (Max) MHz (Max) dB (Max) dB (Max) dB (Max)

AC Electrical Characteristics The following specifications apply for TA e TMIN to TMAX all other limits 25 C (Continued)

a 5V and b 5V unless otherwise specified Boldface limits apply for
(Max) dB (Max) dB (Max) dB (Max) dB (Max) dB (Max) dB (Max) dB (Max) dB (Max)
Ratio of Passband Width to Center fCLK e 167 kHz Frequency GND fCLK e 250 kHz GND 500 kHz fCLK 0 05

AMin1 fO1 Gain at WeDeV ReV Center Frequency fCLK e 167 kHz AMin2 fO2 GND fCLK e 250 kHz AMin3 fO3 GND fCLK 500 kHz


 

Related products with the same datasheet
LMF90CC
LMF90CI
Some Part number from the same manufacture National Semiconductor Corporation
LMF90CC 4th Order Elliptic Notch Filter (discontinued)
LMF90CCJ 4th-order Elliptic Notch Filter
LMF90CI 4th Order Elliptic Notch Filter (discontinued)
LMF90CIJ 4th-order Elliptic Notch Filter
LMH6502 Wideband, Low Power, Linear-in-db Variable Gain Amplifier <<<>>>The LMH6502 is a Wideband DC Coupled Differential Input Voltage Controlled Gain Stage Followed BY a High-speed Current Feedback op Amp Which
LMH6502MA CLC520 - Amplifier With Voltage Controlled Gain, Agc +Amp, Package: Cerdip, Pin Nb=14
LMH6502MAX Wideband, Low Power, Linear-in-db Variable Gain Amplifier <<<>>>The LMH6502 is a Wideband DC Coupled Differential Input Voltage Controlled Gain Stage Followed BY a High-speed Current Feedback op Amp Which
LMH6502MAX CLC520 - Amplifier With Voltage Controlled Gain, Agc +Amp, Package: Cerdip, Pin Nb=14
LMH6502MT Wideband, Low Power, Linear-in-db Variable Gain Amplifier <<<>>>The LMH6502 is a Wideband DC Coupled Differential Input Voltage Controlled Gain Stage Followed BY a High-speed Current Feedback op Amp Which
LMH6503 Wideband, Low Power, Linear Variable Gain Amplifier <<<>>>The LMH6503 is a Wideband DC Coupled Differential Input Voltage Controlled Gain Stage Followed BY a High-speed Current Feedback op Amp Which CAN Directly
LMH6503MA CLC522 - Wideband Variable Gain Amplifier, Package: Lcc, Pin Nb=20
LMH6503MAX Wideband, Low Power, Linear Variable Gain Amplifier <<<>>>The LMH6503 is a Wideband DC Coupled Differential Input Voltage Controlled Gain Stage Followed BY a High-speed Current Feedback op Amp Which CAN Directly
LMH6503MAX CLC522 - Wideband Variable Gain Amplifier, Package: Lcc, Pin Nb=20
LMH6503MT Wideband, Low Power, Linear Variable Gain Amplifier <<<>>>The LMH6503 is a Wideband DC Coupled Differential Input Voltage Controlled Gain Stage Followed BY a High-speed Current Feedback op Amp Which CAN Directly
LMH6504 Wideband, Low Power, Variable Gain Amplifier <<<>>>The LMH6504 is a Wideband DC Coupled Voltage Controlled Gain Stage Followed BY a High-speed Current Feedback op Amp Which CAN Directly Drive a Low Impedance
LMH6533 Four -channel Laser Diode Driver With Dual Output, LVDS Interface And HFM Oscillator <<<>>>The LMH 6533 is a Laser Diode Driver For Use in Combination Dvd/cd Recordable And Rewritable Systems. The Part
LMH6559 High-speed, Closed-loop Buffer
LMH6559MA LMH6559 - High-Speed, Closed-loop Buffer, Package: Soic Narrow, Pin Nb=8
LMH6560 Quad, High-Speed, Closed-loop Buffer
LMH6560MA LMH6560 - Quad, High-Speed, Closed-loop Buffer, Package: Soic Narrow, Pin Nb=14
LMH6560MAX Quad, High-Speed, Closed-loop Buffer

54F253LL : Dual 4-input Multiplexer With Tri-state Outputs

DS26C32AME/883 : CMOS Quad Tri-state Differential Line Driver

LM1117DT-2.85 : Positive Voltage->Adjustable LM1117 - 800mA Low-dropout Linear Regulator, Package: to 252, Pin Nb=3

LM4040C20QDBZT : Precision Micropower Shunt Voltage Reference

COP8722CN : Single-chip Microcmos Microcontrollers

PAL20H2ANC : Progammable Array Logic Series 24 (PAL Series 24)

COP8SGH028L9 : 8-bit CMOS ROM Based and OTP Microcontrollers with 8k to 32k Memory, Two Comparators and Usart

COP8SGH828Q9 : 8-bit CMOS ROM Based and OTP Microcontrollers with 8k to 32k Memory, Two Comparators and Usart

COP8SGF940N7 : 8-bit CMOS ROM Based and OTP Microcontrollers with 8k to 32k Memory, Two Comparators and Usart

DAC1265ACJ : Hi-speed 12-bit D/A Converter

Same catergory

AD8009ART : 1 Ghz, 5,500 V/us Low Distortion Amplifier. Ultrahigh Speed V/ s Slew Rate, 4 V Step, 545 ps Rise Time, 2 V Step, = +2 Large Signal Bandwidth 440 MHz, +2 320 MHz, = +10 Small Signal Bandwidth (3 dB) 1 GHz, +1 700 MHz, = +2 Settling Time 2 V Step, = +2 Low Distortion Over Wide Bandwidth SFDR 44 dBc @ 150 MHz, 2 V p-p 41 dBc @ 150 MHz, 2 V p-p 3rd Order Intercept (3IP) 26 dBm @ 70 MHz, +10 18 dBm @ 150 MHz,.

BCM7020 : High-definition Video Uma Subsystem With 2D Graphics.

CA3028A : Differential/cascode Amplifier For Commercial And Industrial Equipment From DC to 120mhz.

IH5208 : See MAX359.

KS7314 : = KS7314 Digital Zoom ;; Function = 2nd Gen. Digital Zooming ic With x4 ez And Field Memory-less ;; = 256 Discrete Zoom Steps,zoom Operation,dependendant Upon Y,r-y,b-y Signal Input ;; Package = 80VQFP ;; Production Status = Eol.

LC75341 : . The LC75341 and LC75341M are electronic volume and tone control systems that provide volume, balance, a 2band equalizer, and input switching functions that can be controlled from serially transferred data. Volume: 79 dB (in 1-dB steps) and for a total of 81 settings. The volume can be controlled independently in the left and right channels to implement.

LM612AIN : Dual-channel Comparator And Reference. The dual-channel comparator consists of two individual comparators having an input voltage range that extends down to the negative supply voltage V b The common open-collector output can be driven low by either half of the LM612 This configuration makes the LM612 ideal for use as a window comparator The input stages of the comparator have lateral PNP input.

MAX4173 : Low-cost, Sot23, Voltage-output, High-side Current-sense Amplifier. The MAX4173 low-cost, precision, high-side currentsense amplifier is available in a tiny SOT23-6 package. It a voltage output that eliminates the need for gain-setting resistors and it is ideal for today's notebook computers, cell phones, and other systems where current monitoring is critical. High-side current monitoring is especially useful in battery-powered.

MAX817L : Power. +5V Microprocessor Supervisory Circuits. The MAX817/MAX818/MAX819 microprocessor (P) supervisory circuits simplify power-supply monitoring, battery control, and chip-enable gating in P systems by reducing the number of components required. These devices are designed for use in +5V-powered systems. Low supply current (11A typical) and small package size make these devices ideal for portable.

PS381 : Single/dual Supply, Dual SPST Switch. Low On-Resistance (16 typ) Minimizes Distortion and Error Voltages Low Glitching Reduces Step Errors in Sample-and-Holds. Charge Injection, 3pC typ Single Supply +15V) or Split-Supply to +8V) Operation Improved Second Sources for MAX381/MAX383/MAX385 On-Resistance Matching Between Channels, 0.2 typ On-Resistance Flatness, 1 typ Low Off-Channel Leakage,.

SA04 : PWM Amplifier. WIDE SUPPLY RANGE--16-200V 20A CONTINUOUS 85 C CASE 3 PROTECTION CIRCUITS ANALOG OR DIGITAL INPUTS SYNCHRONIZED OR EXTERNAL OSCILLATOR FLEXIBLE FREQUENCY CONTROL APPLICATIONS MOTORS TO 4HP REACTIVE LOADS LOW FREQUENCY SONAR LARGE PIEZO ELEMENTS OFF-LINE DRIVERS C-D WELD CONTROLLER The is a pulse width amplifier that can supply 4000W to the load. An internal.

SAA8110G : SAA8110G; Digital Signal Processor (DSP) For Cameras. Preliminary File under Integrated Circuits, IC02 1997 Jun 13 High precision digital processing with or 10 bit input Different types of CCDs (PAL, NTSC and CIF) (progressive, interlaced and non-interlaced) Black offset preprocessing (including optical black offset control) RGB-separation (with contour and white clip signals generation) RGB-processing.

TDA4817 : Power. Power Factor Controller. IC for High Power Factor and Active Harmonic Filtering Advance Information IC for sinusoidal line-current consumption Power factor approaching 1 Controls boost converter as an active harmonics filter Direct drive of SIPMOS transistor Zero crossing detector for discontinuous operation mode with variable frequency V AC operation without switchover q Standby.

TL074MFK : Low-noise JFET-input Operational Amplifiers. Low Power Consumption Wide Common-Mode and Differential Voltage Ranges Low Input Bias and Offset Currents Output Short-Circuit Protection Low Total Harmonic Distortion 0.003% Typ Low Noise = 18 nV/Hz Typ = 1 kHz High Input Impedance. JFET Input Stage Internal Frequency Compensation Latch-Up-Free Operation High Slew Rate. V/ s Typ Common-Mode Input.

MCP6G0 : The Microchip Technology Inc. MCP6G01/2/3/4 are analog Selectable Gain Amplifiers (SGA). They can be configured for gains of +1 V/V, +10 V/V, and +50 V/V through the Gain Select input pin(s). The Chip Select pin on the MCP6G03 can put it into shutdown to conserve power. These SGAs are optimized for single supply applications requiring reasonable quiescent.

ADA4938-1 : Ultra-Low Distortion Differential ADC Driver The ADA4938-1 is a low noise, ultra-low distortion, high speed differential amplifier. It is an ideal choice for driving high performance ADCs with resolutions up to 16 bits from dc to 70 MHz. The output common mode voltage is adjustable over a wide range, allowing the ADA4938-1 to match the input of the ADC.

 
0-C     D-L     M-R     S-Z