Datasheet Summary
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Dolby B- and C-Type Noise Reduction System
ADE-207-036B (Z) 3rd Edition Jun. 1999 Description
HA12141/142NT, HA12170NT, HA12161/162FP are silicon monolithic bipolar IC series providing dual channel Dolby B- and C-type noise reduction- in one chip.
Functions
- Dual Dolby B/C-type NR processor
- NR OFF/B/C control switch
- MPX by-pass / Encode / Decode (MPX OFF / REC / PB) control switch
- MPX Filter Drive Circuit
Features
- Low external parts count
- R-C spectrum skewing network using passive ponent
- External capacitors are E-3 series (small values)
- Several time constant capacitors built into the IC
- Separate REC/PB input and...