DescriptionThe TC9412AF is electronic volume control IC developed for use in home stereos and other audio equipment.Using serial data input from external sources, it controls the sound volume, balance and loudness circuits.
Features of the TC9412AF are:(1)sound volume can be controlled in 62 steps from 0 to 78dB or up to an infinite level in 1 or 2dB increments; (2)incorporating two channels of volume control circuits, the device allows independent volume control:therefore, it also provides the balancing function; (3)a loudness circuit (20dB tap) is built in TC9412AP and TC9412AF; (4)can operate with a single or dual power supplies; (5)can control up to 4 chips on the same bus by using chip select input; (6)thanks to its polysilicon resistor, the device allows you to configure a low-distortion, high-performance volume control system.
The absolute maximum ratings of the TC9412AF can be summarized as:(1)supply voltage:-0.3 to 36 V;(2)GND input voltage:-0.3 to Vdd+0.3V;(3)storage temperature:-65 to 150;(4)operating temperature:-40 to 85;(5)power dissipation:300mW.The products described in this document are designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as contemplated (1) for any use that includes fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss (i.e., nuclear reaction control in nuclear facility, aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system), or (2) for any use where chance of failure is intolerable (i.e., submersible repeater and artificial satellite).
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TC9412AF Data Sheet
