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LC78602NE PDF даташит

Спецификация LC78602NE изготовлена ​​​​«Sanyo Semicon Device» и имеет функцию, называемую «Compact Disc Player DSP with Built-in Microcontroller».

Детали детали

Номер произв LC78602NE
Описание Compact Disc Player DSP with Built-in Microcontroller
Производители Sanyo Semicon Device
логотип Sanyo Semicon Device логотип 

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LC78602NE Даташит, Описание, Даташиты
Ordering number : EN6021
CMOS IC
LC78602NE
Compact Disc Player DSP with
Built-in Microcontroller
Overview
The LC78602NE CMOS IC implements compact disc
player signal processing, servo control, LED display, key
input acquisition, and remote controller processing
without requiring control by a separate microcontroller.
The basic functions provided include demodulation of the
EFM signal from the optical pickup, deinterleaving, error
detection and correction, 8× oversampling digital filters,
D/A converter (with built-in analog low-pass filter), LED
driver, remote controller processing, key acquisition, and
control processing. Thus this IC can provide excellent
cost/performance characteristics when implementing a
low-end CD player.
Functions
• Implements CD play/pause, disc stop, track selection,
fast forward, reverse, repeat mode playback of 1 track or
the whole disc, programmed play (setup, play, and clear)
of up to 16 tracks, and random repeat play under the
control of key input or remote controller input.
<Signal-Processing Block>
• Slices an input high-frequency signal at an accurate
level, converts the EFM signal, and generates a clock
with an average frequency of 4.3218 MHz using a PLL
circuit that performs a phase comparison with an
internal VCO.
• Accurately generates not only the reference clock but
also all necessary internal timings using an external
16.9344MHz crystal.
• Controls the disc motor speed using a frame difference
signal created based on the reproduced clock signal and
a reference clock.
• Performs detection, protection, and interpolation for the
frame synchronizing signal to assure stable data readout.
• Demodulates the EFM signal, converting it to 8-bit
symbol data.
• Separates the subcode data from the EFM signal and
outputs that data to the internal control processing block.
• After applying a CRC check to the subcode Q signal,
outputs that signal to the internal control processing
block.
• Buffers the demodulated EFM signal data in internal
RAM and compensates for ±4 frames of jitter due to
disc speed fluctuations.
• Performs unscrambling and deinterleaving by reordering
the demodulated EFM signal data to the stipulated order.
• Performs error detection and correction and flag
processing (C1: dual errors, C2: dual errors)
• The C2 flags are set based on the C1 flags and the result
of the C2 processing, and the signal is interpolated or
previous value hold is applied based on the C2 flags.
Dual interpolation is adopted in the interpolation circuit.
Previous value hold is applied if two or more
consecutive errors are indicated by the C2 flags.
• Performs track jump, focus start, disc motor start/stop,
muting on/off, track count, and other operations under
control of the internal control processing block.
• Provides digital outputs.
• Generates D/A converter input signals with continuity
improved by 8× oversampling digital filters.
• Includes on-chip third-order noise shaper delta-sigma
D/A converters with built-in analog low-pass filter.
• Digital deemphasis circuit
• Adopts zero-cross muting.
<Display Block>
• On-chip LED drivers for 7 segment 2-digit display plus
play, program, repeat, and random indicators
<Control Processing Block>
• Key matrix circuit with 1 input and 8 outputs for an
8-key matrix
• Supports remote controller input.
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
D1898RM (OT) No. 6021-1/11









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LC78602NE Даташит, Описание, Даташиты
Features
Package: 64-pin QFP
5-V single-voltage power supply
LC78602NE
Package Dimensions
unit: mm
3159-QFP64E
[LC78602NE]
SANYO: QFP64E(QIP64E)
Equivalent Circuit Block Diagram
Slice level
control
Synchronization
detection
EFM demodulation
CLV digital
servo
Subcode
separator QCRC
Servo commander
VCO clock
oscillator
Clock control
C1 and C2 error detection
and correction
Flag processing
8 × oversampling
digital filters
System control
RAM address
generator
Interpolation
and muting
Bilingual support circuit
Digital output circuit
Digital
attenuator
1-bit DAC
Crystal oscillator
circuit
Timing generator
LED driver
No. 6021-2/11









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LC78602NE Даташит, Описание, Даташиты
Pin Assignment
LC78602NE
Top view
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter
Maximum supply voltage
Input voltage
Output voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD max
VIN
VOUT
Pd max
Topr
Tstg
Conditions
Ratings
VSS 0.3 to VSS + 7.0
VSS 0.3 to VSS + 0.3
VSS 0.3 to VSS + 0.3
300
20 to +75
40 to +125
Allowable Operating Ranges at Ta = –20 to +75°C, VDD = 4.5 to 5.5 V, VSS = 0 V
Parameter
Supply voltage
High-level input voltage
Low-level input voltage
Input level
Operating frequency range
Crystal oscillator frequency
Symbol
VDD
VIH1
VIH2
VIH3
VIH4
VIL1
VIL2
VIL3
VIL4
VIN1
VIN2
fOP
fX
Conditions
VDD, XVDD, L/RVDD, VVDD
Normal speed playback
DEFI, 3 V/*5 V, TMOD, *RES, HFL, TES
*KEYIN
EFMIN
PUIN, RMTSL1 to 3, REMOTE, CLOSE, DRF
DEFI, 3 V/*5 V, TMOD, *RES, HFL, TES
*KEYIN
EFMIN
PUIN, RMTSL1 to 3, REMOTE, CLOSE, DRF
EFMIN: Slice level control
XIN: Capacitor coupled input
EFMIN
XIN, XOUT
min
4.5
0.7 VDD
0.8 VDD
0.6 VDD
0.8 VDD
0
0
0
0
1.0
1.0
Ratings
typ
16.9344
max
5.5
VDD
VDD
VDD
VDD
0.3 VDD
0.5 VDD
0.4 VDD
0.2 VDD
10
Unit
V
V
V
mW
°C
°C
Unit
V
V
V
V
V
V
V
V
V
Vp-p
Vp-p
MHz
MHz
No. 6021-3/11










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Номер в каталогеОписаниеПроизводители
LC78602NECompact Disc Player DSP with Built-in MicrocontrollerSanyo Semicon Device
Sanyo Semicon Device

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