UPC1876 datasheet(17/40 Pages) NEC

17 / 40 page

µPC1876

Data Sheet S11666EJ4V0DS00

(8) Spectral RMS

Detects the RMS value of the signal which has passed through the spectral RMS filter and converts the signal

to the DC voltage. The timing (release time) is determined by the current inside the

µPC1876 (IT) and the

capacitance of the external capacitor connected to the STI pin. Set IT by the current value output from ITI pin.

(9) Wide band RMS

Detects the RMS value of the signal which has passed through the wide band RMS filter and converts the signal

to the DC voltage. The timing (release time) is determined by the current inside the

µPC1876 (IT) and the

capacitance of the external capacitor connected to the WTI pin. Set IT by the current value output from ITI pin

for the setting of IT.

2.4

Matrix Block

(1) Matrix

Adds L+R signal and L–R signal to output L signal and subtracts L+R signal from L–R signal to output R signal.

(2) Mode selector

Selects the user selected mode among the monaural, stereo, SAP signals, and mute, and outputs it from the ROT

and LOT pins.

UPC1876 Datasheet(PDF) 17 Page - NEC