MDS-JE470

6-14. IC PIN FUNCTION DESCRIPTION

• IC101 CXA2523AR RF Amplifier (BD BOARD)

Pin No.

Pin Name

I/O

 

Description

 

 

 

 

1

I

I

I-V converted RF signal I input

 

 

 

 

2

J

I

I-V converted RF signal J input

 

 

 

 

3

VC

O

Middle point voltage (+1.5V) generation output

 

 

 

 

4 - 9

A to F

I

Signal input from the optical pick-up detector

 

 

 

 

 

10

PD

I

Light amount monitor input

 

 

 

 

 

 

11

APC

O

Laser APC output

 

 

 

 

 

12

APCREF

I

Reference voltage input for setting laser power

 

 

 

 

 

13

GND

—

Ground

 

 

 

 

 

14

TEMPI

I

Temperature sensor connection

 

 

 

 

15

TEMPR

O

Reference voltage output for the temperature sensor

 

 

 

 

16

SWDT

I

Serial data input from the CXD2662R

 

 

 

 

17

SCLK

I

Serial clock input from the CXD2662R

 

 

 

 

18

XLAT

I

Latch signal input from the CXD2662R “L”: Latch

 

 

 

 

19

XSTBY

I

Stand by signal input “L”: Stand by

 

 

 

 

20

F0CNT

I

Center frequency control voltage input of BPF22, BPF3T, EQ from the CXD2662R

 

 

 

 

21

VREF

O

Reference voltage output (Not used)

 

 

 

 

22

EQADJ

I

Center frequency setting pin for the internal circuit EQ

 

 

 

 

23

3TADJ

I

Center frequency setting pin for the internal circuit BPF3T

 

 

 

 

 

24

Vcc

—

+3V power supply

 

 

 

 

 

25

WBLADJ

I

Center frequency setting pin for the internal circuit BPF22

 

 

 

 

26

TE

O

Tracking error signal output to the CXD2662R

 

 

 

 

27

CSLED

—

External capacitor connection pin for the sled error signal LPF

 

 

 

 

28

SE

O

Sled error signal output to the CXD2662R

 

 

 

 

 

29

ADFM

O

FM signal output of ADIP

 

 

 

 

 

 

30

ADIN

I

ADIP signal comparator input

ADFM is connected with AC coupling

 

 

 

 

31

ADAGC

—

External capacitor connection pin for AGC of ADIP

 

 

 

 

32

ADFG

O

ADIP duplex signal output to the CXD2662R

 

 

 

 

33

AUX

O

I3 signal/temperature signal output to the CXD2662R

 

 

 

 

34

FE

O

Focus error signal output to the CXD2662R

 

 

 

 

35

ABCD

O

Light amount signal output to the CXD2662R

 

 

 

 

36

BOTM

O

RF/ABCD bottom hold signal output to the CXD2662R

 

 

 

 

37

PEAK

O

RF/ABCD peak hold signal output to the CXD2662R

 

 

 

 

38

RF

O

RF equalizer output to the CXD2662R

 

 

 

 

39

RFAGC

—

External capacitor connection pin for the RF AGC circuit

 

 

 

 

 

40

AGCI

I

Input to the RF AGC circuit

The RF amplifier output is input with AC coupling

 

 

 

 

41

COMPO

O

User comparator output (Not used)

 

 

 

 

42

COMPP

I

User comparator input (Fixed at “L”)

 

 

 

 

43

ADDC

—

External capacitor pin for cutting the low band of the ADIP amplifier

 

 

 

 

44

OPO

O

User operation amplifier output (Not used)

45

OPN

I

User operation amplifier inversion input (Fixed at “L”)

 

 

 

 

 

46

RFO

O

RF amplifier output

 

 

 

 

 

47

MORFI

I

Groove RF signal is input with AC coupling

 

 

 

 

 

48

MORFO

O

Groove RF signal output

 

 

 

 

 

 

•Abbreviation

APC: Auto Power Control

AGC: Auto Gain Control

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Sony MDS-S50 specifications IC PIN Function Description, IC101 CXA2523AR RF Amplifier BD Board, Pin No Pin Name Description
Page 51 Page 53

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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