Ordering number : EN5588
CMOS LSI
LC75373E
Electronic Volume Control
for Car Stereo Systems
Overview
The LC75373E is an electronic volume control that can
implement volume, balance, fader, bass/treble + super
bass, loudness, input switching, and input/output level
control functions with a minimal number of external
components.
Package Dimensions
unit: mm
3148-QFP44MA
[LC75373E]
Functions
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 with
the addition of external capacitors. The base and treble
controls each have 15 positions.
鈥?Input gain: The input signal can be amplified from 0 dB
to +18.75 dB in 1.25 dB steps.
鈥?Output gain: One of two output of 0 dB and + 6.5 dB
can be selected for fader output.
鈥?Input switch: The signal can be selected from one of
four inputs for each of the left and right channels.
鈥?Super bass: The position of super bass can be controlled
in 11 steps.
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.
Features
鈥?On-chip buffer amplifiers for a minimum of external
components.
鈥?Built-in reference voltage generation circuit
鈥?Serial data input: Supports CCB format communication
with the system controller.
Specifications
Absolute Maximum Ratings
at Ta = 25擄C, V
SS
= 0 V
Parameter
Maximum supply voltage
Maximum input voltage
Operating temperature
Storage temperature
Symbol
V
DD
max
V
IN
max
Topr
Tstg
V
DD
CL, DI, CE
Conditions
Ratings
11
V
SS
鈥?0.3 to V
DD
+ 0.3
鈥?0 to +85
鈥?0 to +125
Unit
V
V
擄C
擄C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
22798HA (OT) No. 5588-1/21