CXD2548

更新时间： 2024-02-04 19:21:46

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
113页	1277K
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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CXD2548 技术参数

生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	LQFP, QFP112,.87SQ	针数：	112
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.82	Is Samacsys：	N
商用集成电路类型：	CONSUMER CIRCUIT	JESD-30 代码：	S-PQFP-G112
长度：	20 mm	功能数量：	1
端子数量：	112	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：	LQFP	封装等效代码：	QFP112,.87SQ
封装形状：	SQUARE	封装形式：	FLATPACK, LOW PROFILE
电源：	5 V	认证状态：	Not Qualified
座面最大高度：	1.7 mm	子类别：	Other Consumer ICs
最大供电电压 (Vsup)：	5.25 V	最小供电电压 (Vsup)：	3.4 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：	20 mm	Base Number Matches：	1

CXD2548 数据手册

CXD2548R

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

For the availability of this product, please contact the sales office.

Description

The CXD2548R is a digital signal processor LSI for

CD players. This LSI incorporates a digital servo,

digital filter, zero detection circuit, 1-bit DAC and

analog low-pass filter on a single chip.

112 pin LQFP (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 which supports CAV (Constant

Angular Velocity)

Applications

CD players

• Frame jitter free

Structure

• 0.5 × to 2.5 × continuous playback possible

• Allows relative rotational velocity readout

• Supports spindle external control

• Wide capture range playback mode

• Spindle rotational velocity following method

• Supports normal-speed, double-speed playback

• 16K RAM

Silicon gate CMOS IC

Absolute Maximum Ratings

• Supply voltage

• Input voltage

V^DD

–0.3 to +7.0

(V^SS– 0.3V to VDD + 0.3)

–0.3 to +7.0

–40 to +125 °C

• Output voltage

• EFM data demodulation

• Storage temperature Tstg

• Supply voltage difference

• Enhanced EFM frame sync signal protection

• SEC strategy-based error correction

• Subcode demodulation and Sub Q data error

detection

VSS – AVSS –0.3 to +0.3

V^DD– AVDD –0.3 to +0.3

• Digital spindle servo

• 16-bit traverse counter

• Asymmetry compensation circuit

• CPU interface on serial bus

• Error correction monitor signal, etc. output from a

new CPU interface

Recommended Operating Conditions

Note)

• Supply voltage

VDD

–3.4 to +5.25

•

Operating temperature Topr

–20 to +75 °C

Note) The V^DD(Min.) for the CXD2548R varies

according to the playback speed selection.

VDD (min.) [V]

Playback

• Servo auto sequencer

• Digital audio interface outputs

• Digital level meter, peak meter

speed

CD-DSP block DAC block DSSP block

2 ×

1 ×

3.4V

4.5V

3.4V

Digital Servo (DSSP) 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

When the internal operation of the CD-DSP side

is set to double-speed mode and the crystal

oscillation frequency is halved, normal-speed

playback results.

Digital Filter, DAC and Analog Low-Pass Filter Blocks

• Digital de-emphasis

• Digital attenuation

• Zero detection function

• 8Fs oversampling digital filter

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

• THD + N: 0.007% or more (master clock: 384Fs,

typ.)

I/O Capacitance

• Input pin

• Output pin

12 (Max.)

Note) Measurement conditions V^DD= VI = 0V

fM = 1MHz

• Rejection band attenuation: –60dB or more

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.

– 1 –

E96404-PS

12 3 4 5 6 7...113

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与CXD2548相关器件

型号	品牌	获取价格	描述	数据表
CXD2548R	SONY	获取价格	CD Digital Signal Processor with Built-in Digital Servo and DAC
CXD2550P	SONY	获取价格	Digital Filter for CD
CXD2551M	ETC	获取价格	Digital Filter
CXD2551M/P	ETC	获取价格	Digital Filter
CXD2551P	ETC	获取价格	Digital Filter
CXD2552	SONY	获取价格	1 BIT D/A CONVERTER
CXD2552Q	SONY	获取价格	1 BIT D/A CONVERTER
CXD2555	INTERSIL	获取价格	1-Bit, AD/DA Converter For Audio Application
CXD2555Q	INTERSIL	获取价格	1-Bit, AD/DA Converter For Audio Application
CXD2559	INTERSIL	获取价格	1-Bit D/A Converter For Audio Application

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