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LC75372E Datasheet

  • LC75372E

  • CMOS LSI

  • 481.33KB

  • Sanyo

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Ordering number : EN5330
CMOS LSI
LC75372E
Electronic Volume Control
for Car Stereo Systems
Overview
The LC75372E is an electronic volume control that can
implement volume, balance, fader, bass/treble, loudness,
input switching, and input level control functions with a
minimal number of external components.
鈥?Built-in reference voltage generation circuit
鈥?Serial data input: Supports CCB format communication
with the system controller.
Package Dimensions
unit: mm
3148-QFP44MA
[LC75372E]
Features
鈥?Volume: Provides 81 positions, from 0 dB to 鈥?9 dB (in
1-dB steps) and 鈥撯垶. A balance function can be
implemented by controlling the left and right channels
independently.
鈥?Fader: This function can attenuate either the rear or the
front outputs over 16 positions. (From 0 to 鈥?0 dB in
2-dB steps, from 鈥?0 to 鈥?5 dB in one 5-dB step, from
鈥?5 to 鈥?5 dB in 10-dB steps, 鈥?0 dB, and 鈥撯垶.)
鈥?Bass/treble: Forms an NF-type tone control circuit (LUX
type) with the addition of external capacitors. The base
and treble controls each have 15 positions.
鈥?Loudness: The volume resistor ladders are tapped
starting at the 鈥?0-dB position. A loudness function can
be implemented by adding external RC circuits at these
taps.
鈥?The signal can be selected from one of three inputs for
each of the left and right channels. The input signals can
be amplified from 0 to +18 dB in 6-dB steps.
鈥?On-chip buffer amplifiers for a minimum of external
components.
鈥?Minimal switching noise due to fabrication in a silicon-
gate CMOS process.
SANYO: QIP44MA
鈥?CCB is a trademark of SANYO ELECTRIC CO., LTD.
鈥?CCB is SANYO鈥檚 original bus format and all the bus
addresses are controlled by SANYO.
Specifications
Absolute Maximum Ratings
at Ta = 25掳C, V
SS
= 0 V
Parameter
Maximum supply voltage
Maximum input voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V
DD
max
V
IN
max
Pd max
Topr
Tstg
V
DD
CL, DI, CE, LIN, RIN, LFIN, RFIN, L1 to L3, R1 to R3
Ta
鈮?/div>
85掳C
Conditions
Ratings
11
V
SS
鈥?0.3 to V
DD
+ 0.3
260
鈥?0 to +85
鈥?0 to +125
Unit
V
V
mW
掳C
掳C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN
41596HA (OT) No. 5330-1/18

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