HA12218F中文資料日立數據手冊PDF規(guī)格書

Description

HA12216F/HA12221F series are silicon monolithic bipolar IC providing Dolby B type noise reduction, music sensor, PB equalizer system in one chip.

Features

? Different type of PB equalizer characteristics selection (120 μs/70 μs) is available with fully electronic control switching built-in.

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

? Available to change music sensing level by external resistor.

? Available to change response of music sensor by external capacitor.

? Music sensing level, built-in switch to change a band (MSGV).

? NR ON/OFF fully electronic control switching built-in. (Only HA12216F series)

? Line mute (Tape radio) control switching built-in.

? Available to connect direct with MPU.

? These ICs are strong for a cellular phone noise. (18 dB improvement from HA12163)

Functions

? PB equalizer × 2 channel

? Music sensor × 1 channel

? Dolby B NR (Only HA12216F series) × 2 channel

? Line mute (Tape radio) SW × 2 channel