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LC78628 Datasheet

  • LC78628

  • Sanyo Semicon Device [Compact Disc Player DSP with Built-in...

  • SANYO

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Ordering number : ENN6329
CMOS IC
LC78628E
Compact Disc Player DSP with Built-in HDCD Decoder
廬
Overview
The LC78628E CMOS IC implements signal processing
and servo control for compact disc players, laser disc
players, CD-V, CD-I, and similar products. It provides
functions for demodulation of the EFM signal from the
optical pickup, deinterleaving, error detection and
correction, and processing servo system commands issued
by the system microprocessor. In addition to this basic CD
functionality, it also provides HDCD (High Definition
Compatible Digital) decoding functions and CD text
functions. It also includes a built-in EFM PLL circuit.
鈥?Performs detection, protection, and interpolation for the
frame synchronizing signal to assure stable data readout.
鈥?Demodulates the EFM signal, converting it to 8-bit
symbol data.
鈥?After applying a CRC check to the subcode Q signal,
outputs that data to the control microprocessor using
serial data transfer.
Continued on next page.
Package Dimensions
unit: mm
3174-QIP80E
[LC78628E]
23.2
20.0
0.8
1.0
64
65
Functions
鈥?Full decoding and playback for discs encoded with the
HDCD technique developed by Pacific Microsonics,
Inc.
鈥?Slices the high-frequency input signal at an accurate
level, converts it into the EFM signal, and generates a
PLL clock with an average frequency of 4.3218 MHz
performing a phase comparison with an internal VCO.
鈥?Accurately generates a reference clock signal and all
necessary internal timings using an external 16.9344-
MHz crystal.
鈥?Controls the disc motor speed using a frame phase
difference signal created based on the reproduced clock
signal and the reference clock.
0.8
1.6
41
40
0.35
0.15
17.2
14.0
0.8
1.6
80
1
24
25
3.0max
2.7
21.6
0.8
SANYO: QIP80E
廬
HDCD廬 (High Definition Compatible Digital廬) is a registered trademark of Pacific Microsonics, Inc.
in the US and other countries.
A license from Pacific Microsonics, Inc. is required to use this product.
Sanyo Electric Co., Ltd. has acquired license for the use of HDCD technology from Pacific Microsonics, Inc.
The following patents apply to the design of this product:
USA: 5479168, 5638074, 5640161, 5808574, 5838274, 5854600, and 5872531.
Australia: 669114
Other patents have also been applied for.
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鈥檚
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 Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
32400RM (OT) No. 6329-1/40
0.8
15.6

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