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PDF LC75395E Data sheet ( Hoja de datos )
| Número de pieza | LC75395E | |
| Descripción | Single-Chip Electronic Volume Control System | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : EN5056A
CMOS LSI
LC75395E
Single-Chip Electronic Volume Control System
Overview
The LC75395E is an electronic volume control that
provides volume, balance, five-band equalization and
input switching functions. These functions are controlled
from serial input data.
Package Dimensions
unit: mm
3159-QFP64E
[LC75395E]
Functions
• Volume control: The volume control provides 25
attenuation positions: from 0 dB to –17.5 dB in 1.25 dB
steps, from –17.5 dB to –25 dB in 2.5 dB steps, from
–25 dB to –36.25 dB in 3.75 dB steps and with settings
for –41.25 dB, –50 dB, –60 dB and –∞.
A balance function can be implemented by controlling
the left and right channels independently.
• Equalizer: The equalizer function supports ±10 dB
control in 2 dB steps in each of the five bands. Of the
five bands, four provide peaking characteristics, and one
provides shelving characteristics.
• Selector: The selector function selects one of four inputs
for each of the left and right channels. An arbitrary
amplification level can be set for each input signal using
external components.
• Serial data input: All controls can be set from serial
input data (CCB format)
Features
• On-chip buffer amplifiers to minimize the number of
external components
• Silicon-gate CMOS process for minimal switching noise
• On-chip circuit to generate the VDD/2 reference voltage
• 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.
SANYO: QIP64E
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter
Maximum supply voltage
Maximum input voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD max
VIN max
Pd max
Topr
Tstg
Conditions
Ratings
VDD
CL, DI, CE, L1 to L4, R1 to R4, LTIN, RTIN, LVRIN, RVRIN
Ta ≤ 85°C
12
VSS – 0.3 to VDD + 0.3
310
–30 to +85
–40 to +125
Unit
V
V
mW
°C
°C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
63096HA (OT)/71895HA (OT) No. 5056-1/17
1 page  
Test Circuits
2. Output Noise Voltage
LC75395E
A03546
No. 5056-5/17
5 Page 
LC75395E
Equalizer Control Block Internal Equivalent Circuit (bands F1 to F4)
A03564
External Capacitor Calculations
The LC75395E supports four bands with peaking characteristics and one band with shelving characteristics.
1. Peaking Characteristics (bands F1 to F4)
The external capacitor functions as the structural element of a simulated inductor. The equivalent circuit and the
calculations required to achieve the desired center frequency are shown below.
• Equivalent circuit for the simulated inductor
A03565
No. 5056-11/17
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet LC75395E.PDF ] | |
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