HA12237F Datasheet, PDF (1/33 Pages) Renesas Technology Corp – Audio Signal Processor for Cassette Deck

HA12237F
Audio Signal Processor for Cassette Deck
REJ03F0137-0100
(Previous: ADE-207-343)
Rev.1.00
Jun 15, 2005
Description
HA12237F is silicon monolithic bipolar IC providing PB equalizer, REC equalizer system, ALC and each electronic
control switch in one chip.
Functions
• PB equalizer
× 2 channel
• REC equalizer × 2 channel
• ALC (Automatic Level Control)
• REC mute
• REC head return switch
• Line Amp.
× 2 channel
• Line mute
Features
• REC equalizer is very small number of external parts built-in 2 types of frequency characteristics.
• TYPE I REC correspondence, High-speed dubbing correspondence.
• PB equalizer circuit built-in 2 types of frequency characteristics. (external parts of capacitor only)
• Head control switch built-in.
• Line mute switch built-in.
• Controllable from direct micro-computer output.
Parallel Data Format
Pin No.
11
12
13
14
15
Pin Name
ALC ON/OFF
High/Norm
A/B
REC Return ON/OFF
MUTE ON/OFF
REC MUTE OFF/ON
Lo
ALC OFF
Normal speed
B
Return OFF
MUTE OFF
REC MUTE ON
Hi
ALC ON
High speed
A
Return ON
MUTE ON
REC MUTE OFF
Rev.1.00 Jun 15, 2005 page 1 of 32