HA12175中文資料日立數(shù)據(jù)手冊PDF規(guī)格書

Description

HA12173 series are silicon monolithic bipolar IC providing Dolby noise reduction system*, music sensor and PB equalizer system in one chip.

Features

? Different type of PB equalizer characteristics selection (normal/chrome or metal) is available with fully electronic control switching built-in.

? 2 type of input selection (RADIO/TAPE) is available.

? Changeable to Forward, Reverse-mode for PB head with fully electronic control switching built-in.

? Available to change music sensing level by external resistor.

? Music sensing level selection is available with fully electronic control switching built-in.

? Available to change frequency response of music sensor.

? NR-ON/OFF and REC/PB fully electronic control switching built-in.

? 4 type of PB-out level.

? Available to allow common PCB designs with HA12163 series.

Functions

? PB equalizer × 2 channel

? Dolby B/C-NR × 2 channel

? Music sensor × 1 channel