MZ-E505

•IC801 CXD2671-210GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM)

Pin No.

Pin Name

I/O

Description

 

 

 

 

1

SCS1

—

Not used

2

SI1

—

Not used

3

SO1

—

Not used

4

SCK1

—

Not used

 

 

 

 

5

78 DD CTL

—

Not used

 

 

 

 

6

MCUVDD0

—

Power supply terminal (for microcomputer block) (+1.5V)

 

 

 

 

7

MIFVSS3

—

Ground terminal (for microcomputer I/F)

 

 

 

 

8

XRST

I

System reset signal input terminal from the power control “L”: reset

9

S MON

I

Servo signal monitor input terminal (A/D input) from RF amp

10

VB MON

I

Voltage monitor input terminal of UNREG power supply (A/D input)

 

 

 

 

11

CHG MON

I

Charge voltage monitor input terminal (A/D input) Not used

 

 

 

 

12

VREF MON

I

Clear reference monitor voltage input terminal (A/D input) from RF amp

 

 

 

 

13

SET KEY 1

I

Key input terminal from the switch & LCD module (A/D input)

 

 

 

 

14

SET KEY 2

I

Key input terminal (A/D input) Not used

15

VL MON

I

VL voltage monitor input terminal (A/D input)

16

HIDC MON

I

HIGH DC voltage monitor input terminal (A/D input)

 

 

 

 

17

WK DET

I

Set key start switching detection signal input terminal (A/D input) Not used

 

 

 

 

18

REC KEY

I

REC key input terminal (A/D input) Not used

 

 

 

 

19

HALF LOCK

I

Open/close detection switch of the upper panel input terminal “L”: when upper panel close

SW

 

 

 

 

 

 

 

20

RMC KEY

I

Key input terminal (A/D input) from the remote commander attached headphone

21

AVDD

—

Power supply terminal (for the analog circuit block) (+2.3V)

22

AVSS

—

Ground terminal (for the analog circuit block)

 

 

 

 

23

VDIOSC

—

Power supply terminal (for OSC cell) (+2.3V)

 

 

 

 

24

OSCI

I

System clock (45.1584MHz) input terminal

 

 

 

 

25

OSCO

O

System clock (45.1584MHz) output terminal

 

 

 

 

26

VSIOSC

—

Ground terminal (for OSC cell)

27

DAVDD

—

Power supply terminal (for the built-in D/A converter) (+2.3V)

28

VREFL

I

Reference voltage input terminal (for the internal D/A converter L-CH)

 

 

 

 

29

AOUTL

O

Built-in D/A converter (L-CH) output terminal

 

 

 

 

30

AOUTR

O

Built-in D/A converter (R-CH) output terminal

 

 

 

 

31

VREFR

I

Reference voltage input terminal (for the built-in D/A converter R-CH)

 

 

 

 

32

DAVSS

—

Ground terminal (for the built-in D/A converter)

33

ASYO

O

Playback EFM duplex signal output terminal

34

ASYI

I

Playback EFM comparison slice level input terminal

35

AVD1

—

Ground terminal (for the analog) (+2.3V)

 

 

 

 

36

BIAS

I

Bias current input terminal for the playback EFM comparison

 

 

 

 

37

RFI

I

Playback EFM RF signal input from RF amp

 

 

 

 

38

AVS1

—

Ground terminal (for the analog)

 

 

 

 

39

PCO

O

Phase comparison output terminal for the playback EFM system master PLL

40

PDO

O

Phase comparison output terminal for the analog PLL Not used

41

FILI

I

Filter input terminal for the playback EFM system master PLL

 

 

 

 

42

FILO

O

Filter output terminal for the playback EFM system master PLL

 

 

 

 

43

CLTV

I

Internal VCO control voltage input for the playback EFM system master PLL

 

 

 

 

44

PEAK

I

Peak hold signal input of the light amount signal (RF/ABCD) from RF amp

 

 

 

 

35

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Image 35
Sony MZ-E505 SCS1, SI1, SO1, SCK1, Dd Ctl, MCUVDD0, MIFVSS3, Vref MON, Set Key, Vl Mon, Wk Det, Rec Key, Half Lock, Avdd
Page 34 Page 36

MZ-E505 specifications

The Sony MZ-E505 is a portable mini-disc player that emerged in the early 2000s as part of Sony's innovative move towards digital audio solutions. This compact device combines functionality, versatility, and cutting-edge technology, making it a popular choice among music enthusiasts. The MZ-E505 stands out due to its sleek design and impressive features, setting the standard for portable audio players of its time.

One of the main characteristics of the MZ-E505 is its lightweight design, weighing approximately 160 grams. Its portability is complemented by an elegant, user-friendly interface, which includes a simple set of buttons for easy navigation through tracks and folders. The device features a bright LCD display that shows essential information such as track number, time elapsed, and battery life, ensuring users remain informed while on the go.

The MZ-E505's standout feature is its mini-disc technology, allowing users to record and playback high-quality audio. Mini-discs, introduced by Sony in the 1990s, offer an advanced storage solution that can hold up to 74 minutes of high-fidelity stereo sound on the standard format. The player also supports LP2 and LP4 modes, enabling users to double or quadruple the recording capacity, which is perfect for those who require more space for their music collections.

In terms of sound quality, the MZ-E505 utilizes Sony’s ATRAC (Adaptive Transform Acoustic Coding) compression technology, which ensures that audio playback is clear and precise. The device is equipped with a 20-second shock protection mechanism to prevent interruptions during playback, giving users peace of mind while enjoying their favorite tracks during activities like jogging or commuting.

Battery life is another crucial aspect, and the MZ-E505 doesn’t disappoint. It features a rechargeable battery that can provide up to 10 hours of continuous playback on a full charge. Additionally, users have the option to utilize standard AA batteries as an alternative power source.

The MZ-E505 also incorporates a variety of connectivity options, including an analog line-in for direct recording from external sources. This feature was particularly appealing for audiophiles who wanted to create their mix compilations.

Overall, the Sony MZ-E505 is a remarkable blend of portability, sound quality, and innovative technology, representing the quintessential qualities of early digital audio devices. Although the mini-disc format has since been largely superseded by other digital technologies, the MZ-E505 remains a cherished piece of audio history, celebrated for its unique capabilities and breathtaking design.
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