Zakładka z wyszukiwarką danych komponentów
  Polish  ▼

Delete All
ON OFF
ALLDATASHEET.PL

X  

Preview PDF Download HTML

LC78621E Arkusz danych(PDF) 1 Page - Sanyo Semicon Device

Numer części LC78621E
Szczegółowy opis  Compact Disc Player DSP
Download  34 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Producent  SANYO [Sanyo Semicon Device]
Strona internetowa  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LC78621E Arkusz danych(HTML) 1 Page - Sanyo Semicon Device

  LC78621E Datasheet HTML 1Page - Sanyo Semicon Device LC78621E Datasheet HTML 2Page - Sanyo Semicon Device LC78621E Datasheet HTML 3Page - Sanyo Semicon Device LC78621E Datasheet HTML 4Page - Sanyo Semicon Device LC78621E Datasheet HTML 5Page - Sanyo Semicon Device LC78621E Datasheet HTML 6Page - Sanyo Semicon Device LC78621E Datasheet HTML 7Page - Sanyo Semicon Device LC78621E Datasheet HTML 8Page - Sanyo Semicon Device LC78621E Datasheet HTML 9Page - Sanyo Semicon Device Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 34 page
background image
CMOS LSI
Ordering number : EN*5223
83095HA (OT) No. 5223-1/34
Preliminary
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Compact Disc Player DSP
LC78621E
Overview
The LC78621E is a CMOS LSI that implements the signal
processing and servo control required by compact disk
players, laser disks, CD-V, CD-I and related products. The
LC78621E provides several types of signal processing,
including demodulation of the optical pickup EFM signal,
de-interleaving, error detection and correction, and digital
filters that can help reduce the cost of CD player units. It
also processes a rich set of servo system commands sent
from the control microprocessor. It also incorporates an
EFM-PLL circuit and a one-bit D/A converter.
Functions
• Input signal processing: The LC78621E takes an HF
signal as input, digitizes (slices) that signal at a precise
level, converts that signal to an EFM signal, and
generates a PLL clock with an average frequency of
4.3218 MHz by comparing the phases of that signal and
an internal VCO.
• Precise reference clock and necessary internal timing
generation using an external 16.9344 MHz crystal
oscillator
• Disk motor speed control using a frame phase difference
signal generated from the playback clock and the
reference clock
• Frame synchronization signal detection, protection and
interpolation to assure stable data readout
• EFM signal demodulation and conversion to 8-bit
symbol data
• Subcode data separation from the EFM demodulated
signal and output of that data to an external
microprocessor
• Subcode Q signal output to a microprocessor over the
serial I/O interface after performing a CRC error check
• Demodulated EFM signal buffering in internal RAM to
handle up to ±4 frames of disk rotational jitter
• Demodulated EFM signal reordering in the prescribed
order for data unscrambling and de-interleaving
• Error detection, correction, and flag processing (error
correction scheme: dual C1 plus dual C2 correction)
• The LC78620E sets the C2 flags based on the C1 flags
and a C2 check, and then performs signal interpolation
or muting depending on the C2 flags. The interpolation
circuit uses a quadruple interpolation scheme. The
output value converges to the muting level when four or
more consecutive C2 flags occur.
• Support for command input from a control
microprocessor: commands include track jump, focus
start, disk motor start/stop, muting on/off and track
count (8 bit serial input)
• Built-in digital output circuits.
• Arbitrary track counting to support high-speed data
access
• Zero cross muting
• Supports the implementation of a double-speed dubbing
function.
• D/A converter outputs with data continuity improved by
8
× oversampling digital filters. (These filters function as
4
× oversampling filters during double-speed playback.)
• Built-in third-order
∑∆ D/A converters (PWM output)
• Built-in digital attenuator (8 bits – alpha, 239 steps)
• Built-in digital de-emphasis
• Built-in digital level and peak meter functions
• Support for bilingual applications
Features
• 80-pin QIP (miniature, reduced space package)
• Silicon gate CMOS process (for low power)
• 5 V single-voltage power supply (for use in portable
products)
Package Dimensions
unit: mm
3174-QFP80E
SANYO: QIP80E
[LC78621E]


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34 


Arkusz danych Pobierz

Go To PDF Page

Powiązane numery części

Numer częściSzczegółowy opisHtml ViewProducent
LC78620E Compact Disc Player DSP 1  2  3  4  5  More Sanyo Semicon Device
LC78622E Compact Disc Player DSP 1  2  3  4  5  More Sanyo Semicon Device
LC78624E Compact Disc Player DSP 1  2  3  4  5  More Sanyo Semicon Device
LC78625E Compact Disc Player DSP 1  2  3  4  5  More Sanyo Semicon Device
LC78628E Compact Disc Player DSP with Built-in HDCD Decoder 1  2  3  4  5  More Sanyo Semicon Device
LC78601E Compact Disc Player DSP with Built-in Microcontroller 1  2  3  4  5  More Sanyo Semicon Device
LC78602NE Compact Disc Player DSP with Built-in Microcontroller 1  2  3  4  5  More Sanyo Semicon Device
BU24545 Servo signal processor for compact disc player 1  2  3  4  5  More Rohm
BU9540KV Servo signal processor for compact disc player 1  2  3  4  5  More Rohm
BU9541AKV Servo signal processor for compact disc player 1  2  3  4  5  More Rohm

Link URL




Polityka prywatności
ALLDATASHEET.PL
Czy Alldatasheet okazała się pomocna?  [ DONATE ] 

O Alldatasheet   |   Reklama   |   Kontakt   |   Polityka prywatności   |   Linki   |   Lista producentów
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn