HT2830 Datasheet, PDF (1/15 Pages) Holtek Semiconductor Inc – Up/Down Tone Generator

HT2830
Up/Down Tone Generator
Features
• _{Single power supply: 2.4V~3.3V}
• _{Low standby current: 1µA (Typ.)}
at VDD=3V
• _{Speaker or direct piezo application}
• _{Sound output: one Main Tone plus two}
Fighting Sounds (1,2)
• _{Two direct LED drive outputs}
(The flash rate depends on the sound speed)
• _{Option mode selection: normal mode or auto}
mode (bonding option)
• _{Minimum external components}
General Description
The HT2830 is a CMOS LSI chip designed for
use in sound effect products. It is a body struc-
ture including tone circuit, noise circuit, an up-
down counter, and other control logic to
generate various sounds such as JET plane,
motorcycle, helicopter, train, and so forth. Fea-
tures from the customer’s sound samples can be
analyzed and programmed into an internal
ROM by changing a mask layer during device
fabrication. The HT2830 is suitable for various
toy applications.
Pin Assignment
1
9th July ’97