• IC121 Digital Signal Processor, Digital Servo Signal Processor, EFM/ACIRC Encoder/Decoder,

Shock-proof Memory Controller, ATRAC Encoder/Decoder, 2M Bit DRAM (CXD2654R) (BD (MD) board)

Pin No.

Pin Name

I/O

 

 

 

 

Function

 

 

 

 

 

 

 

 

1

MNT0 (FOK)

O

 

FOK signal output to the system control (monitor output)

 

“H” is output when focus is on

 

 

 

 

 

 

 

 

 

 

 

 

2

MNT1 (SHCK)

O

 

Track jump detection signal output to the system control (monitor output)

 

 

 

 

 

 

 

 

3

MNT2 (XBUSY)

O

 

Monitor 2 output to the system control (monitor output)

 

 

 

 

 

 

 

 

4

MNT3 (SLOC)

O

 

Monitor 3 output to the system control (monitor output)

 

 

 

 

 

 

 

 

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

I

 

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)

 

 

 

 

 

 

 

 

21

DOUT

O

 

Digital audio output (Optical output)

 

 

 

 

 

 

 

 

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

—

 

+3V power supply (Digital)

 

 

 

 

 

31 to 34

A03 to A00

O

 

DRAM address output

35

A10

O

 

DRAM address output (Not used)

 

 

 

 

 

 

 

 

36 to 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

 

XCAS

 

 

 

44

O

 

 

CAS

signal output for DRAM

45

A09

O

 

Address output for DRAM

 

 

 

 

 

 

 

 

46

XRAS

O

 

 

 

 

signal output for DRAM

 

RAS

 

 

 

 

 

47

XWE

O

 

Write enable signal output for DRAM (Used : CXD2652AR, Not used : CXD2650R)

 

 

 

 

 

 

 

 

* 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

72

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Sony HCD-MD373 MNT0 FOK, MNT1 Shck, MNT2 Xbusy, MNT3 Sloc, Srdt, Sqsy, Dqsy, Recp, Xint, Osci, Osco, DIN0, DIN1, Dadti
Page 71 Page 73

HCD-MD373 specifications

The Sony HCD-MD373 is a compact mini audio system that offers an impressive blend of sound quality, versatility, and advanced technology, making it an ideal choice for audio enthusiasts and casual listeners alike. One of the standout features of the HCD-MD373 is its MiniDisc recorder/player, a legacy technology that allows users to record high-quality audio onto MiniDiscs, providing an alternative to traditional CDs and cassettes. This feature is particularly appealing for those looking to capture live music or create personalized playlists.

Another notable aspect of the HCD-MD373 is its integrated CD player, which supports a variety of formats including CD, CD-R, and CD-RW. This versatility means that users can enjoy their favorite albums without the hassle of switching devices. The audio system also includes a built-in AM/FM tuner, enabling users to easily tune into their favorite radio stations and enjoy live broadcasts.

The HCD-MD373 is equipped with a powerful amplifier that delivers impressive sound output, complemented by its two-way speaker system. The speakers provide a rich audio experience with clear highs and deep lows, making it suitable for various music genres, from classical to contemporary. The system also features a bass boost function that enhances low-frequency sounds, allowing for a more immersive listening experience.

In terms of connectivity, the HCD-MD373 offers multiple inputs and outputs, including audio line-in, headphone jacks, and a digital optical output. These features make it easy to connect external devices such as MP3 players, smartphones, or even home theater systems. Additionally, the audio system supports various playback options, including shuffle and repeat modes, providing enhanced flexibility for users.

The design of the HCD-MD373 is sleek and modern, with a compact form factor that allows it to fit seamlessly into any living space. Its user-friendly interface, complete with an LCD display, makes it easy to navigate and control playback settings. Overall, the Sony HCD-MD373 is a testament to Sony's commitment to quality audio experiences, combining innovative features, robust technology, and elegant design into a single, powerful audio system. Whether enjoying a quiet evening at home or hosting a gathering with friends, the HCD-MD373 is sure to deliver satisfying sound and performance.
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