SAN JOSE, California, March 30, 2014 Mixed Signal Integration has developed a new series of switched capacitor filter ICs operating at center/corner frequencies of 5 MHz and beyond – the MSVHFS1-6 series.

  • A switched capacitor filter design that reduces the need for external components
  • Requires only decoupling capacitors and an external CMOS level clock
  • Single +3V supply

These Selectable High Frequency Filter ICs offer a choice of responses:

   Six pole Butterworth response

   Six pole Elliptic response

   Six pole Bessel response

   Six pole full octave response

   Six pole one third octave response

   Six pole one sixth octave bandpass response

The high frequency operation of this series opens up a new range of applications previously unavailable to lower performance parts, such as IF filter, data communications, telecommunications, and clock recovery.

In communications systems, for example, these filters extend the response beyond typical baseband applications to roles in the IF section. The frequency range of the MSVHFS1-6 is popular in wireless alarm systems and wireless telephones, allowing them to function as luminance filters for video demodulation. In addition, these high order filter ICs have much steeper roll-off and greater stop-band rejection than passive component approaches or low order op-amp based solutions.


  Corner Frequencies/
Typical Supply Current
DIP Gain Clock to Corner Ratio
MSVHFS1 up to 5 MHz / 5 mA 8 pin 0 dB 6.25:1
single input, unity gain and a fixed clock to corner ratio
MSVHFS2 up to 5 MHz / 5 mA 16 pin 0, 10, or 20 dB 12.5.1 or 6.25:1
gain and a fixed clock to corner ratio
four input multiplexor, externally selectable gain setting pin, power down function and a clock to corner ratio select
MSVHFS3 1 MHz / 1 mA 8 pin 0 dB 6.25:1

single input, unity gain, fixed clock to corner ratio

MSVHFS4 1 MHz / 1 mA 16 pin 0, 10 or 20 dB 12.5:1 or 6.25:1
gain, fixed clock to corner ratio
Four input multiplexor, externally selectable gain setting pin, power down function and a clock to corner ratio select
MSVHFS5 up to 5 MHz / 5 mA 8 pin 0 dB 12.5:1
single input, unity gain and a fixed clock to corner ratio
MSVHFS6 1 MHz / 1 mA 8 pin 0 dB 12.5:1

single input, unity gain, fixed clock to corner ratio

 

MSVHFS1N is available in an 8 pin plastic SOIC package for $7.50 in 1000 piece quantities.

MSVHFS2N is available in a 16 pin plastic SOIC package for $8.68 in 1000 piece quantities.

MSVHFS3N, MSVHFS5N and MSVHFS6N come in an 8 pin plastic SOIC.

MSVHFS4N is in a 16 pin plastic SOIC.

MIXED SIGNAL INTEGRATION is an integrated circuit company specializing in analog and mixed signal standard products and custom ASICs.

For more information, contact MSI at 2157-50 O’Toole Ave., San Jose, California 95131. Telephone: 408-434-6305. Fax: 408-434-6417. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.. Web Site: http://www.mix-sig.com

NEW PRODUCT ANNOUNCEMENT

MIXED SIGNAL INTEGRATION Combines Six Filters Into An 8 Pin Package

SANTA CLARA, California, November 25, 1997---Drawing on over 20 years of experience with switched capacitor design, Mixed Signal Integration today announced a Selectable Lowpass/Bandpass Filter IC that has six different filter responses. The device can be configured for seven pole Butterworth, Elliptic or Bessel lowpass responses or six pole full octave, one third octave or one sixth octave bandpass responses. The IC runs from a supply voltage of 2.7 to 5.5 V.

The MSFS1, MSFS2 and MSFS5 will operate at center frequencies up to 20 kHz while drawing 1 mA typical supply current. The MSFS3, MSFS4 and MSFS6 work to 3 kHz with only 200 uA typical supply current. These power consumption figures are much lower than previously available. The MSFS1, MSFS3, MSFS5 and MSFS6 offer all six filter responses even though they are packaged in a space saving 8 pin DIP. They have a single input, unity gain, and a fixed clock to corner ratio. The MSFS1 and MSFS3 have a 50:1 clock to corner ratio. The MSFS5 and MSFS6 have a 100:1 clock to corner ratio. The MSFS2 and MSFS4 are 16 pin versions that include all 6 responses, a four input multiplexor, externally selectable gain setting pin, power down function and a clock to corner ratio select. Gain can be selected from 0, 10 or 20 dB. The clock to corner ratio can be either 100:1 or 50:1.

The devices use a switched-capacitor filter design that reduces the need for external components. Only decoupling capacitors and an external CMOS level clock are required.

The MSFS1-6 can be applied in a range of data communications, wireless, telephony, portable and general purpose systems. They can also be employed as anti-alias filters, reconstruction filters, tracking filters, for harmonic and noise analysis, or in spectrum analyzers.

The MSFS1P is available in an 8 pin plastic DIP package for $2.75 in 1000 piece quantities. The MSFS2P is available in a 16 pin plastic DIP package for $3.50 in 1000 piece quantities. The MSFS3P, MSFS5P and MSFS6P come in an 8 pin plastic DIP. The MSFS4P is in a 16 pin plastic DIP. The MSFS1-6 are also available in SO packages.

MIXED SIGNAL INTEGRATION is an integrated circuit company specializing in analog and mixed signal standard products and custom ASICs in CMOS technologies. For more information, contact MSI at 2157F O'Toole Ave., San Jose, California 95131. Telephone: 408-434-6305. Fax: 408-434-6417. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.. Web Site: http://www.mix-sig.com

NEW PRODUCT ANNOUNCEMENT

NEW FILTER ICs OFFERS SIX FILTER RESPONSES AT 3 MHz

SAN JOSE, California, March 30, 1999---Engineers at Mixed Signal Integration have developed a new series of switched capacitor filter ICs that operate at center/corner frequencies of 3 MHz and beyond with a choice of six different filter responses. The Selectable High Frequency Filter ICs have six pole Butterworth, Elliptic or Bessel responses or six pole full octave, one third octave or one sixth octave bandpass responses.

The high frequency operation of the MSHFS1-6 series opens up a new range of applications previously unavailable to lower performance parts. In communications systems for example, these filters extend beyond typical baseband applications to roles in the IF section. The frequency range of the MSHFS1-6 is popular in wireless alarm systems and wireless telephones. This same range allows them to function as luminance filters for video demodulation. Also, these high order filter ICs have much steeper roll-off and greater stop-band rejection than passive component approaches or low order op-amp based solutions.

The MSHFS1, MSHFS2 and MSHFS5 operate at corner frequencies up to 3 MHz while drawing typical supply currents of 24 mA. The MSHFS3, MSHFS4 and MSHFS6 work up to 1 MHz with only 4 mA typical supply current. The MSHFS1, MSHFS3, MSHFS5 and MSHFS6 combine all six filter responses into an 8 pin DIP. They have a single input, unity gain and a fixed clock to corner ratio. The MSHFS1 and MSHFS3 have a 6.25:1 clock to corner ratio. The MSHFS5 and MSHFS6 have a 12.5:1 clock to corner ratio. The MSHFS2 and MSHFS4 are 16 pin versions that include all 6 responses, a four input multiplexor, externally selectable gain setting pin, power down function and a clock to corner ratio select. The gain can be 0, 10 or 20 dB. The clock to corner ratio can be either 12.5:1 or 6.25:1.

The devices use a switched capacitor filter design that reduces the need for external components. Only decoupling capacitors and an external CMOS level clock are required. The MSHFS1-6 take a single +5V supply.

The MSHFS1P is available in an 8 pin plastic DIP package for $4.95 in 1000 piece quantities. The MSHFS2P is available in a 16 pin plastic DIP package for $5.80 in 1000 piece quantities. The MSHFS3P, MSHFS5P and MSHFS6P come in an 8 pin plastic DIP. The MSHFS4P is in a 16 pin plastic DIP. The MSHFS1-6 are also available in SO packages.

MIXED SIGNAL INTEGRATION is an integrated circuit company specializing in analog and mixed signal standard products and custom ASICs in CMOS technologies. For more information, contact MSI at 2157F O'Toole Ave., San Jose, California 95131. Telephone: 408-434-6305. Fax: 408-434-6417. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.. Web Site: http://www.mix-sig.com

NEW PRODUCT ANNOUNCEMENT

NEW LOW PASS FILTER IC IDEAL FOR PORTABLE, BATTERY OPERATED SYSTEMS

SAN JOSE, California, September 30 --- Mixed Signal Integration today announced a new Switched Capacitor Elliptic Lowpass Filter with small package footprint, low operating voltage and low supply current for use in equipment where space and power are at a premium.

The power select pin on the MSELP gives it three power modes. In regular operation, the typical supply current is 1.0 mA with a maximum corner frequency of 20 kHz at a 100:1 clock to corner ratio. In low power mode, the typical supply current is only 600 uA with a maximum corner frequency of 5 kHz. In power down mode, the device rests at a typical supply current of just 250 uA. The MSELP will operate at either +5V +/- 10% supply voltage or +3V +/- 10%.

The MSELP is offered in DIP or SOIC packages. The compact design of the MSELP allows it to fit in the smaller cavity of a 150 mils wide SOIC, in addition to a 300 mils wide SOIC. The footprint (.236 inches by .339 inches) of the 150 mils wide SOIC package offers a 44% space reduction versus the 300 mils wide SOIC package (.354 X .406).

Wireless communications applications often use the MSELP, particularly two-way mobile radio systems such as LMR (Land Mobile Radio) and FRS (Family Radio Service). In these mobile radios, the MSELP filters out the audio (voice) signal, preserving low frequency signaling tones. As the frequency bands of the signaling tones and the audio signal are close together, the sharp roll-off and the stop-band rejection of the MSELP remove the audio without damaging the signaling tones. The low operating voltage, low supply current and small package size are also advantageous to these portable, battery powered applications.

The cutoff frequency of the MSELP is selectable based on the clock frequency. The MSELP can use its own on-chip oscillator or an external clock. The Clock to Corner Select pin sets the clock to cutoff frequency ratio to either 50:1 or 100:1. No external components are needed to set the filter characteristics. The MSELP includes two uncommitted op amps and has an operating temperature of -20°C to +75°C.

The MSELPP is available in an 14 pin plastic DIP package for $1.85 in 1000 piece quantities. The MSELPN is available in a 14 pin 150 mils wide JEDEC SOIC package for $1.85 in 1000 piece quantities. The MSELPS costs $1.90 in 1000 piece quantities for a 14 pin 300 mils wide JEDEC SOIC.

MIXED SIGNAL INTEGRATION is an integrated circuit company specializing in analog and mixed signal standard products and custom ASICs in CMOS technologies. For more information, contact MSI at 2157F O'Toole Ave., San Jose, California 95131. Telephone: 408-434-6305. Fax: 408-434-6417. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.. Web Site: http://www.mix-sig.com

NEW PRODUCT ANNOUNCEMENT

MIXED SIGNAL INTEGRATION COMBINES FIVE HIGH FREQUENCY FILTER RESPONSES INTO AN 8 PIN PACKAGE

SAN JOSE, California, June 9 --- Mixed Signal Integration today announced a High Frequency Resistor Programmable Universal Active Filter IC that has five different filter responses. The device can be configured for Lowpass, Bandpass, Highpass, Notch or Allpass responses. Center or corner frequencies up to 500 kHz are achievable.

The MSU1HF1 and MSU1HF3 will operate at center frequencies up to 100 kHz while drawing 5 mA typical supply current. The MSU2HF1 and MSU4HF1 work to 500 kHz with only 20 mA typical supply current. These operating frequencies are much higher than previously available for universal filter ICs. The MSU1HF1 and MSU1HF2 have a nominal 6.25:1 clock to corner ratio. The MSU1HF3 and MSU1HF4 have a nominal 12.5:1 clock to corner ratio. The MSU2HF1 is a 16 pin version that includes two filter sections, and a clock to corner ratio select pin. The nominal clock to corner ratio can be either 6.25:1 or 12.5:1. The ICs run from a single +5V supply.

The ratios of external resistors are used to set the Q and the clock to corner ratio. Filter sections can be combined together in a cascade arrangement to produce order higher order filters.

The MSU1HF1-4 and MSU2HF1 can be applied in a range of data communications, wireless, telephony, portable, instrumentation and general purpose systems. They can also be employed as anti-alias filters, reconstruction filters, tracking filters, for harmonic and noise analysis, or in spectrum analyzers.

The MSU1HF1P is available in an 8 pin plastic DIP package for $3.75 in 1000 piece quantities. The MSU2HF1P is available in a 16 pin plastic DIP package for $4.25 in 1000 piece quantities. The MSU1HF2P, MSU1HF3P and MSU1HF4P come in an 8 pin plastic DIP. The MSU1HF1-4 and MSU2HF1 are also available in SO packages.

MIXED SIGNAL INTEGRATION is an integrated circuit company specializing in analog and mixed signal standard products and custom ASICs in CMOS technologies. For more information, contact MSI at 2157F O'Toole Ave., San Jose, California 95131. Telephone: 408-434-6305. Fax: 408-434-6417. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.. Web Site: http://www.mix-sig.com