BA3830S Ver la hoja de datos (PDF) - ROHM Semiconductor

Número de pieza

componentes Descripción

Fabricante

BA3830S

Band-pass filter for spectral analyzers

ROHM Semiconductor 

Audio ICs

(4) DET circuit

This circuit carries out phase detection on the signal se-

lected and amplified by the BPF, and holds it at the peak

level. It is configured so that all of the capacitors are inter-

nal.

The charge that was charged by the internal capacitors

in the DET circuit is set to be discharged at 75ms / V

(Typ.), but in order to eliminate any effects of disparity, a

reset circuit is also included.

BA3830S

(5) Output section circuit

The signal level held at peak level by the DET undergoes

V / I conversion and is output. Since the next stage sup-

ports MOS (high-input impedance), there is a resistance

of 33.9kΩ (44.3kΩ for REC output only) between the out-

put pin and the GND in the IC, so the output value

changes based on the input impedance.

588

Share Link: