參數(shù)資料
型號: LC75372E
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP44
封裝: QFP-44
文件頁數(shù): 1/18頁
文件大?。?/td> 481K
代理商: LC75372E
Ordering number : EN5330
41596HA (OT) No. 5330-1/18
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.
Features
Volume: Provides 81 positions, from 0 dB to –79 dB (in
1-dB steps) and –
∞. A balance function can be
implemented by controlling the left and right channels
independently.
Fader: This function can attenuate either the rear or the
front outputs over 16 positions. (From 0 to –20 dB in
2-dB steps, from –20 to –25 dB in one 5-dB step, from
–25 to –45 dB in 10-dB steps, –60 dB, and –
∞.)
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.
Loudness: The volume resistor ladders are tapped
starting at the –20-dB position. A loudness function can
be implemented by adding external RC circuits at these
taps.
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.
On-chip buffer amplifiers for a minimum of external
components.
Minimal switching noise due to fabrication in a silicon-
gate CMOS process.
Built-in reference voltage generation circuit
Serial data input: Supports CCB format communication
with the system controller.
Package Dimensions
unit: mm
3148-QFP44MA
SANYO: QIP44MA
[LC75372E]
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN
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.
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VDD max
VDD
11
V
Maximum input voltage
VIN max
CL, DI, CE, LIN, RIN, LFIN, RFIN, L1 to L3, R1 to R3
VSS – 0.3 to VDD + 0.3
V
Allowable power dissipation
Pd max
Ta
≤ 85°C
260
mW
Operating temperature
Topr
–40 to +85
°C
Storage temperature
Tstg
–50 to +125
°C
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