Integrated digital volume potentiometer circuit

Posted on Dec 11, 2010

Figure 4-18 by volume potentiometer T (Xi 153AP and tone potentiometer T ( 155AP consisting of volume, tone control circuit circuit, Rx, cx clock oscillation element, the value

Integrated digital volume potentiometer circuit
Click here to download the full size of the above Circuit.

of which can be selected according to the desired oscillation frequency : f (Fic L/. 0.7F xCx (Hz) where Rs 3Rxo Guardian 153AP adjustment method using the attenuation levels, the total attenuation adjustment range of O-66dB, unit step attenuation amount of the attenuation level which 2dBo use 10dB attenuation amount units (corresponding to the resistance value of 50 snapped that RATT1); the second level attenuation minus 2dB units using the amount of attenuation (corresponding to the resistance value 20kfl, namely RATT2) o have the same circuit two inner lc, respectively for left and right channel use. to obtain good signal to noise ratio can be used to input RArTl, RATI2 for output. TC9155AP built two identical circuits each t is an adjustment range of 6 ~ + 6dB, the resistance value of is 100kn, sub -level 13 step adjustment, each with a set of two-channel electronic potentiometer resistor network together with an external capacitor connected to the op amp s feedback loop amplifier, tone control circuit composed of feedback operational amplifier using TA75558P also be MC1458 or other similar operational amplifier circuit.

Leave Comment

characters left:

New Circuits



Popular Circuits

PIC12C508A Beacon
Digital Volume Control with DS1669
Signal and Tone Activated Relay Switch
Analog to Digital Converter with ADC0808
Simple Audio Mixer Circuits
Auto Shut Off Tone Generator
24W amplifier using TDA1516
Grand Prix Starting Lights
Autotransformer decompression control circuit
Nine-digit password composed of the controller circuit diagram CD4017
East Shi IDS-2000F STB switching power supply circuit
Fan motor starting circuit diagram