LC75347E Datasheet, PDF (1/17 Pages) Sanyo Semicon Device – Six-Channel Single-Chip Electronic Volume Control System

Ordering number : ENN*7378
Preliminary
CMOS LSI
LC75347E
Six-Channel Single-Chip Electronic Volume
Control System
Overview
The LC75347E is a 6-channel 97-step electronic volume
control system IC that provides a 2-channel input selector,
bass and treble tone controls, external output ports, and a
zero-cross volume switching function.
Functions
• Volume: 0 to –95 dB (in 1 dB steps) and –∞, for a total
of 97 positions.
Each of the six input channels can be controlled
independently.
• Bass and treble: Each band can be controlled over a
±12 dB range in 2 dB steps.
The bass control provides peaking characteristics and
the treble control provides shelving characteristics.
• Selector: 2-channel input selector
• Zero cross: Provides independent zero-cross detection
for each of the 6 channels and a timer overflow
detection circuit.
• External muting: Mute in/mute out function using zero-
cross detection and dedicated pins.
• External output ports: Provides 4 n-channel transistor
open-drain outputs.
Features
• Built-in buffer amplifiers reduce the number of external
components to a minimum.
• Fabricated in a silicon-gate CMOS process for minimal
noise generation from internal switches.
• Built-in analog ground reference voltage generator
circuit
• All settings are controlled by serial data transmitted over
a CCB interface.
Package Dimensions
unit: mm
3148A-QIP44M
[LC75347E]
13.2
10.0
44
1
0.8
0.35
0.2
(1.0)
SANYO: QIP44M
• CCB is a trademark of SANYO ELECTRIC CO., LTD.
• CCB is SANYO’s original bus format and all the bus
addresses are controlled by SANYO.
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
D1503TN (OT) No. 7378 -1/17