MDS-JE470

• IC151 CXD2662R Digital Signal Processor, Digital Servo Signal Processor (BD BOARD)

Pin No.

Pin Name

I/O

 

 

 

 

Desription

 

 

 

 

 

 

 

 

1

MNT0 (FOK)

O

 

Not used (open)

 

 

 

 

 

2

MNT1 (SHCK)

O

 

Track jump detection signal output to the system control

 

 

 

 

 

 

 

 

3

MNT2 (XBUSY)

O

 

In the state of executire command signal output

 

 

 

 

 

 

 

 

4

MNT3 (SLOC)

O

 

Not used (open)

 

 

 

 

 

 

 

 

5

SWDT

I

 

Writing data signal input from the system control

 

 

 

 

 

 

 

 

6

SCLK

I (S)

 

Serial clock signal input from the system control

 

 

 

 

 

 

 

 

7

XLAT

I (S)

 

Serial latch signal input from the system control

 

 

 

 

 

 

 

 

8

SRDT

O (3)

 

Reading data signal output to the system control

 

 

 

 

 

 

 

 

9

SENS

O (3)

 

Internal status (SENSE) output to the system control

 

 

 

 

 

 

 

 

10

XRST

I (S)

 

Reset signal input from the system control “L”: Reset

 

 

 

 

 

 

 

 

11

SQSY

O

 

Subcode Q sync (SCOR) output to the system control

 

“L” is output every 13.3 msec. Almost all, “H” is output

 

 

 

 

 

 

 

 

 

 

 

 

12

DQSY

O

 

Digital In U-bit CD format or MD format subcode Q sync (SCOR) output to the system

 

control

 

 

 

 

 

 

 

 

 

 

 

 

13

RECP

I

 

Laser power switching input from the system control “H”: Recording, “L”: Playback

 

 

 

 

 

 

 

 

14

XINT

O

 

Interrupt status output to the system control

 

 

 

 

 

 

 

 

15

TX

O

 

Recording data output enable input from the system control

 

 

 

 

 

 

 

 

16

OSCI

I

 

System clock input (512Fs=22.5792 MHz)

 

 

 

 

 

 

 

 

17

OSCO

O

 

System clock output (512Fs=22.5792 MHz) (Not used)

 

 

 

 

 

 

 

 

18

XTSL

I

 

System clock frequency setting “L”: 45.1584 MHz, “H”: 22.5792 MHz (Fixed at “H”)

 

 

 

 

 

 

 

 

19

DIN0

I

 

Digital audio input (Optical input)

 

 

 

 

 

 

 

 

20

DIN1

I

 

Digital audio input (Optical input) (Not used)

 

 

 

 

 

 

 

 

21

DOUT

O

 

Digital audio output (Optical output) (Not used)

 

 

 

 

 

 

 

 

22

DADTI

I

 

Serial data input

 

 

 

 

 

 

 

 

23

LRCKI

I

 

LR clock input “H” : Lch, “L” : R ch

 

 

 

 

 

 

 

 

24

XBCKI

I

 

Serial data clock input

 

 

 

 

 

 

 

 

25

ADDT

I

 

Data input from the A/D converter

 

 

 

 

 

26

DADT

O

 

Data output to the D/A converter

 

 

 

 

 

 

 

 

27

LRCK

O

 

LR clock output for the A/D and D/A converter (44.1 kHz)

 

 

 

 

 

 

 

 

28

XBCK

O

 

Bit clock output to the A/D and D/A converter (2.8224 MHz)

 

 

 

 

 

 

 

 

29

FS256

O

 

11.2896 MHz clock output (Not used)

 

 

 

 

 

 

 

 

30

DVDD

I

 

+3V power supply (Digital)

 

 

 

 

 

31 - 34

A03 to A00

O

 

DRAM address output

35

A10

O

 

DRAM address output (Not used)

36 - 40

A04 to A08

O

 

DRAM address output

 

 

 

 

 

 

 

 

41

A11

O

 

DRAM address output (Not used)

 

 

 

 

 

 

 

 

42

DVSS

—

 

Ground (Digital)

 

 

 

 

 

 

 

 

43

XOE

O

 

Output enable output for DRAM

 

 

 

 

 

 

 

 

44

XCAS

O

 

CAS signal output for DRAM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

45

A09

O

 

Address output for DRAM

46

XRAS

O

 

RAS signal output for DRAM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

47

XWE

O

 

Write enable signal output for DRAM

 

 

 

 

 

 

 

 

* I (S) stands for Schmidt input, I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O

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Sony MDS-S50 specifications Pin No Pin Name Desription, Sqsy
Page 52 Page 54

MDS-S50 specifications

The Sony MDS-S50 is a pinnacle of MiniDisc technology, offering audiophiles a compact and reliable way to enjoy high-quality audio. Launched in the early 2000s, it epitomizes the innovation that Sony was known for during this period, combining functionality with sleek design.

One of the primary features of the MDS-S50 is its ability to record in SP (Standard Play) mode, which delivers high-resolution audio at 64 kbps, and LP (Long Play) mode for extended recording times. This flexibility makes it suitable for various listening preferences, whether for critical listening or casual playback during everyday activities. The device harnesses the precision of digital audio encoding, ensuring minimal loss of sound quality.

The MDS-S50 stands out with its direct digital recording capabilities. By connecting to external audio sources via optical or coaxial digital inputs, users can preserve the integrity of the original sound. This feature is particularly appealing for those who want to capture live recordings or transfer vinyl records and CDs to the MiniDisc format without degradation.

The inclusion of a user-friendly interface, with an intuitive remote control and well-organized menu systems, enhances the experience for users. The display panel gives clear information on track titles, remaining recording time, and other essential details, allowing for seamless navigation through complex playlists or recording options.

Another notable technology in the MDS-S50 is the ATRAC (Adaptive Transform Acoustic Coding) compression algorithm, developed by Sony. This proprietary encoding format optimizes sound quality while significantly reducing file sizes. The result is a perfect balance between audio fidelity and efficient storage, which was a major advantage during the era of burgeoning digital music.

Furthermore, the MDS-S50 boasts a durable build quality, designed to withstand transport and everyday use. Its compact size, combined with lightweight materials, allows users to take it on the go while not compromising on audio quality.

Ultimately, the Sony MDS-S50 remains a beloved device among music enthusiasts. With its combination of high-quality recording capabilities, advanced digital encoding technology, and user-friendly features, it represents a unique chapter in the evolution of portable audio. Whether used as a standalone player or part of a larger audio setup, it delivers a level of performance that still resonates with those who appreciate the art of music.
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