Electronic Components Datasheet Search |
|
RC4156 Datasheet(PDF) 7 Page - Fairchild Semiconductor |
|
RC4156 Datasheet(HTML) 7 Page - Fairchild Semiconductor |
7 / 13 page RC4156/RC4157 PRODUCT SPECIFICATION REV. 1.0.1 6/13/01 7 Active Filters The introduction of low-cost quad op amps has had a strong impact on active filter design. The complex multiple- feedback, single op amp filter circuits have been rendered obsolete for most applications. State-variable active-filter circuits using three to four op amps per section offer many advantages over the single op amp circuits. They are rela- tively insensitive to the passive-component tolerances and variations. The Q, gain, and natural frequency can be inde- pendently adjusted. Hybrid construction is very practical because resistor and capacitor values are relatively low and the filter parameters are determined by resistance ratios rather than by single resistors. A generalized circuit diagram of the 2-pole state-variable active filter is shown in Figure 15. The particular input connections and component-values can be calculated for specific applications. An important fea- ture of the state-variable filter is that it can be inverting or non-inverting and can simultaneously provide three outputs: lowpass, bandpass, and highpass. A notch filter can be real- ized by adding one summing op amp. The RC4156 was designed and characterized for use in active filter circuits. Frequency response is fully specified with minimum values for unity-gain bandwidth, slew-rate, and full-power response. Maximum noise is specified. Output swing is excellent with no distortion or clipping. The RC4156 provides full, undistorted response up to 20 kHz and is ideal for use in high-performance audio and telecom- munication equipment. In the state-variable filter circuit, one amplifier performs a summing function and the other two act as integrators. The choice of passive component values is arbitrary, but must be consistent with the amplifier operating range and input signal Figure 13. Triangle and Square Wave Generator Figure 14. Triangle Generator—Symmetrical Output Option +15V 30K 1K V 0.12V ~ ~ R Square Wave Output R0 4156/57 A R1 4156/57 D V3 Output Offset 1K Integrator 5K 5K R3 20K R4 1K 20K +15V -15V V4 Triangle Wave Output (+) -12V +12V C0 V2 10K 100K 20K 5K R2 20K V1 Comparator 65-0750 Amplitude Adjust +15V -15V * Optional – asymmetric ramp slopes 10 9 4 8 11 7 6 5 1 3 2 12 13 14 4156/57 C 4156/57 B * R1 10K 65-2051 |
Similar Part No. - RC4156 |
|
Similar Description - RC4156 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |