HA12169FB Datasheet | Hitachi Semiconductor

Description HA12167FB/HA12169FB is silicon monolithic bipolar IC providing REC volume system, Level meter system and Dolby noise reduction system in one chip. Functions - REC equalizer - Equalizer volume - Dolby B/C NR - REC/PB input electronic volume - Level Meter - DAC for adjusting bias × 2 channel × 2 channel × 2 channel × 2 channel × 2 channel × 2 channel Features - Available to create characteristics of REC equalizer by changing external resistor, no coil - Equalizer volume is available to calibrate recording automatically with micro-controller - Electronic volume built-in is available to set the level of recording and play back automatically with micro-controller - 4 types of input (3 out of 4 are by way of electronic volume) - Input electronic control switching is irrelevant to REC/PB electronic control switching - Dolby noise reduction system is available with double cassette decks (Unprocessed signal output available from recording out terminals during PB mode) - Log-pressed level meter output is range from 0 V to 5 V (Usable as music search switchable gain of 0 d B and 20 d B respectively) - Normal-speed/high-speed, normal/metal/chrome fully electronic control switching built-in - NR-ON/OFF, Dolby B/C, MPX ON/OFF fully electronic control switching built-in - Reduction of the number of pins by transfered serial data to electronic volume control switching and another control switching (Controllable from micro-controller directly) - Small the number of external parts HA12167FB/HA12169FB Ordering Information Operating Voltage Type HA12167FB HA12169FB Package QFP-80 (14 × 14) PB-OUT Level 775 m Vrms 580 m Vrms REC-OUT Level Dolby Level 300 m Vrms 300 m Vrms Min 12.0 V 11.0 V Max 15.0 V 15.0 V - Dolby is a trademark of Dolby Laboratories Licensing Corporation. A license from Dolby Laboratories Licensing Corporation is required for the use of this IC. Rev.3, Jun. 1997, page 2 of 73 HA12167FB/HA12169FB Pin Description (VCC = 14 V, Ta = 25°C, No signal, The...