NJU7509

The NJU7509 is designed as a band pass filter for audio spectrum analyzer display and realizes the quick response for audio high frequency signal band. It contains high and low band pass filter, oscillation circuit, clock generator, control circuit, and DC transfer circuit.

NJU7509 has eight features. (1) Band pass filter for stereo application spectrum analyzer. (2) Band pass filter for audio frequency band. (3) Quick response for high frequency band. (4) DC transfer and peak hold circuit on-chip. (5) Switched capacitor filter technology. (6) CR oscillation circuit on-chip, external R required. (7) Package outline - DIP14 / DMP14. (8) CMOS technology. That are all the main features.

Some absolute maximum ratings of NJU7509 have been concluded into several points as follow. (1) Its supply voltage is +7V for Vdd and -7V for Vss. (2) Its input voltage is from 0 to Vdd+0.3V (RST terminal and CLKR terminal). (3) Its power dissipation is 700mW for DIP-14 and 300mW for DMP-14. (4) Its operating temperature range is from -30 to +80°C. (5) Its storage temperature range is from -40°C to +125°C.

Also some electrical characteristics about NJU7509. (1) Its operating voltage is min 4.5V and typ 5.0V and max 5.5V for Vdd and would be min -4.5V and typ -5.0V and max -5.5V for Vss. (2) Its operating current is typ 10mA and max 20mA. (3) Its input leak current is min -10uA and max 10uA. (4) Its input voltage is min 0V and max 0.2Vdd for low level and would be min 0.8Vdd and max Vdd for high level. (5) Its output voltage is min 0V and max 0.1Vdd for low level and would be min 0.9Vdd and max Vdd for high level. (6) Its output offset voltage is min 0 and max 500mV. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!