Publication date: March 2005
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DATA SHEET
MN662793
LQFP100-P-1414
SDD00031BEM
1
MN662793
Contents
Overview ………………………………………………….…………………………………………………………. 3
Features ………………………………………………….…………………………………………………………. 3
Applications
.…………………………………………….…………………………………………………………. 4
Application Circuit ……………………………………….…………………………………………………………. 5
Block Diagram ………………………………………….…………………………………………………………. 6
Pin Assignments………………………………………….…………………………………………………………. 7
Pin Descriptions …………………………………………….……………………………………………………….
8
Absolute Maximum Ratings …………………………….…………………………………………………………. 12
Operating Supply Voltage Range……………………….…………………………………………………………. 13
Electrical Characteristics …………………………….……………………………………………………………. 15
SDD00031BEM
2
MN662793
MN662793
Signal processing LSI for compact disc player
Overview
The MN662793 is a signal processing LSI for CDs. It incorporates an optical servo (focus, tracking, and traverse servos) processing
function, digital signal processing function (EFM demodulation and CIRC/CD-ROM error correction), digital servo processing
function for spindle motor, anti-shock memory control function supporting 64-Mbit, 16-Mbit, 4-Mbit, or 1-Mbit DRAM that enables
compression/decompression for a disc rotation synchronous playback (i.e. jitter free), a decode function for MP3/WMA*, Fs
conversion processing function, a digital filter, and D/A converter. All the processing functions after the head amplifier (RF amplifier)
are incorporated into a single chip.
This LSI includes Microsoft’s technology and cannot be used and distributed without a license from Microsoft Corporation.
Features
(Optical Servo)
Focus, tracking, and traverse servos
Automatic adjustment functions
(Focus / Tracking gain, Focus / Tracking offset, Focus / Tracking balance)
Provided with a countermeasure for dropout
Provided with an anti-shock detection function
Provided with a track-cross function
Drive output PWM drive function supported
Provided with supply voltage monitoring and a servo gain automatic adjustment function
(Digital Signal Processing)
Containing DSL and analog / digital PLL
Provided with a frame synchronous detection / protection / interpolation
Subcode data processing
Q-data CRC check
On-chip Q-data register
On-chip CD-TEXT data register
CIRC error correction
C1 decoder: double error correction
C2 decoder: triple / quadruple error correction
On-chip deinterleaving 16-K RAM
CD-ROM error correction
Q decoder: an error correction
P decoder: an error correction
Mode1 and Mode 2 compatible
Audio data interpolation processing
4-sampling average value interpolation and previous value hold
(Spindle Motor Servo)
CLV digital servo
Servo gain setting function
Shaft loss compensation setting function
SDD00031BEM
3
MN662793
Features (continued)
(Audio Circuit)
Soft muting
Digital attenuation (2048 levels)
Soft attenuation (2048 levels)
Digital audio interface (EIAJ format)
8× -oversampling digital filter
On-chip low-voltage OP amp
Bass boost filter, high-band notch filter, and surround function
On-chip digital de-emphasis
(MP3 Decoding)
Decoding of asignals recorded in MPEG1-layer3 or MPEG2-layer3 format
Decoding of asignals recorded in MPEG1-layer2 or MPEG2-layer2 format
Decoding of asignals recorded in MPEG2.5 format
Sampling rate conversion from signals recorded at Fs = 32 kHz or 48 kHz to 44.1 kHz
(WMA Decoding)
Decoding of signals recorded in WMA Ver. 8 format (Sampling rate: 48 kHz to 22.05 kHz)
Supporting special playback (forward, reverse, and resume playback)
(SD Interface)
Stream serial input from SD available
(Anti-shock Memory Controller)
ADPCM 4-bit compression or expansion / decompression in full-bit (16 bits) mode
External DRAM selectable
Async DRAM (Data bus width: 4 bits)
64M-bit DRAM
×
1
16M-bit DRAM
×
2
16M-bit DRAM
×
1 + 4M-bit DRAM
×
1
16M-bit DRAM
×
1
4M-bit DRAM
×
2
4M-bit DRAM
×
1
1M-bit DRAM
×
2
1M-bit DRAM
×
1
Async DRAM (Data bus width: 16 bits)
128M-bit DRAM
×
1
64M-bit DRAM
×
1
16M-bit DRAM
×
1
4M-bit DRAM
×
1
SDRAM (Data bus width: 16 bits)
128M-bit DRAM
×
1
64M-bit DRAM
×
1
16M-bit DRAM
×
1
4M-bit DRAM
×
1
SDD00031BEM
4
MN662793
Features (continued)
(Others)
Disc rotation mechanism has a synchronous playback (jitter-free) mode (–50% to +50%)
8× -speed playback (when using jitter-free function)
TX output (1× -, 2× -, 3×-and 4×-speed) supported
Serial data output pitch shift function
A patent license must be acquired from the management company when using MPEG Layer3 products.
Applications
Signal processing LSI for CDs (Compact Discs)
SDD00031BEM
5
嵌入式系统
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