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PDF LC75394NE Data sheet ( Hoja de datos )
| Número de pieza | LC75394NE | |
| Descripción | Single-Chip Electronic Volume Control System | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LC75394NE (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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Ordering number : EN5466
CMOS LSI
LC75394NE
Single-Chip Electronic Volume Control System
Overview
The LC75394NE is an electronic volume control system
providing control over volume, balance, 5-band equalizer,
and input switching based on serial inputs.
Functions
• Volume control:
The chip provides 25 levels of volume attenuation: in 2-
dB steps between 0 dB and –20 dB, 3-dB steps between
–20 dB and –32 dB, 4-dB steps between –32 dB and –52
dB, 4.5-dB steps between –52 dB and –70 dB, and – ∞.
Independent control over left and right channels
provides balance control.
• Equalizer:
The chip provides control in 2-dB steps over the range
between +10 dB and –10 dB. Four of the five bands
have peaking equalization; the remaining one, shelving
equalization.
• Selector:
The left and right channels each offer a choice of four
inputs. An external constant determines the
amplification for the input signal.
Features
• Built-in buffer amplifiers reduce the number of external
parts necessary.
• Silicon gate CMOS reduces switching noise.
• Serial data input
—Supports CCB* format communication with the
system controller.
• A built-in reference voltage circuit divides the supply
voltage (VDD) in half.
Package Dimensions
unit: mm
3159-QFP64E
[LC75394NE]
SANYO: QFP64E
*
• 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
Maximum supply voltage
Maximum input voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD max
VIN max
Pd max
Topr
Tstg
Conditions
VDD
CL, DI, CE, L1 to L4, R1 to R4, LTIN, RTIN, LVRIN,
RVRIN
Ta ≤ 85°C
Ratings
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
91096HA (OT)/81095HA (OT) No. 5466-1/17
1 page  
2. Output Noise Voltage
LC75394NE
No. 5466-5/17
5 Page 
LC75394NE
Equalizer Control Block Internal Equivalent Circuit (Bands F1 to F4)
Calculating the Size of External Capacitors
The LC75394NE 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
No. 5466-11/17
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet LC75394NE.PDF ] | |
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