CXD2598

更新时间： 2024-01-17 10:01:52

品牌	Logo	应用领域
索尼 - SONY		数字信号处理器
页数	文件大小	规格书
147页	1112K
描述
CD Digital Signal Processor with Built-in Digital Servo and DAC

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技术参数
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CXD2598 技术参数

生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	QFP, QFP100,.7X.9	针数：	100
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.83	Is Samacsys：	N
商用集成电路类型：	CONSUMER CIRCUIT	JESD-30 代码：	R-PQFP-G100
长度：	20 mm	功能数量：	1
端子数量：	100	最高工作温度：	75 °C
最低工作温度：	-20 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	QFP	封装等效代码：	QFP100,.7X.9
封装形状：	RECTANGULAR	封装形式：	FLATPACK
电源：	5 V	认证状态：	Not Qualified
座面最大高度：	3.1 mm	子类别：	Other Consumer ICs
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	2.7 V
表面贴装：	YES	技术：	CMOS
温度等级：	COMMERCIAL EXTENDED	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	QUAD
宽度：	14 mm	Base Number Matches：	1

CXD2598 数据手册

CXD2598Q

CD Digital Signal Processor with Built-in Digital Servo and DAC

Description

The CXD2598Q is a digital signal processor LSI for

CD players. This LSI incorporates a digital servo,

digital filter, 1-bit DAC and analog low-pass filter on a

single chip.

100 pin QFP (Plastic)

Features

• All digital signal processing during playback is

performed with a single chip

• Highly integrated mounting possible due to a built-

in RAM

Digital Signal Processor (DSP) Block

• Playback mode supporting CAV (Constant Angular

Velocity)

• S/N: 100dB or more (master clock: 384Fs, typ.)

Logical value: 109dB

• THD + N: 0.007% or less (master clock: 384Fs, typ.)

• Rejection band attenuation: –60dB or less

• Double-speed playback supported

• Frame jitter free

• 0.5× to 4× continuous playback possible

• Allows relative rotational velocity readout

• Wide capture range playback mode

• Spindle rotational velocity following method

• Supports normal-speed to 4× speed playback

• Supports variable pitch playback

• The bit clock, which strobes the EFM signal, is

generated by the digital PLL.

Applications

CD players

Structure

Silicon gate CMOS IC

• EFM data demodulation

• Enhanced EFM frame sync signal protection

• Refined super strategy-based powerful error correction

C1: double correction, C2: quadruple correction

Supported during 4× speed playback

• Noise reduction during track jumps

• Auto zero-cross mute

Absolute Maximum Ratings

• Supply voltage

• Input voltage

V^DD

–0.3 to +7.0

(Vss – 0.3V to VDD + 0.3V)

• Output voltage

–0.3 to +7.0

• Subcode demodulation and Sub-Q data error detection

• Digital spindle servo

(Vss – 0.3V to VDD + 0.3V)

• Storage temperature Tstg

• Supply voltage difference

–40 to +125

°C

• 16-bit traverse counter

• Asymmetry correction circuit

VSS – AVSS –0.3 to +0.3 V

VDD – AVDD –0.3 to +0.3 V

• CPU interface on serial bus

• Error correction monitor signal, etc. output from a

new CPU interface

Note) AVDD includes XVDD and AVSS includes XVSS.

• Servo auto sequencer

Recommended Operating Conditions

• Fine search performs track jumps with high accuracy

• Digital audio interface outputs

• Supply voltage

VDD

2.7 to 5.5

°C

• Operating temperature Topr

–20 to +75

• Digital level meter, peak meter

• Bilingual compatible

Note) The VDD for the CXD2598Q varies according

to the playback speed selection.

• VCO control mode

• CD TEXT data demodulation

VDD[V]

Playback speed

Digital Servo (DSSP) Block

CD-DSP block

4.75 to 5.25

3.0 to 5.5

DAC block

• Microcomputer software-based flexible servo control

• Offset cancel function for servo error signal

• Auto gain control function for servo loop

• E:F balance, focus bias adjustment functions

• Surf jump function supporting micro two-axis

• Tracking filter: 6 stages

4×

2×

1×

4.5 to 5.5

2.7 to 5.5

Focus filter: 5 stages

I/O Pin Capacitance

• Input capacitance

• Output capacitance

• I/O capacitance

Digital Filter, DAC and Analog Low-Pass Filter Blocks

• DBB (digital bass boost) function

• Digital de-emphasis

11 (Max.)

CI/O

11 (Max.)

• Digital attenuation

Note) Measurement conditions VDD = VI = 0V

• 8fs oversampling digital filter

• Adoption of tertiary ∆∑ noise shaper

fM = 1MHz

Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by

any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the

operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

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