CXD2597Q
CD Digital Signal Processor with Built-in Digital Servo and DAC
For the availability of this product, please contact the sales office.
Description
The CXD2597Q 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.
80 pin QFP (Plastic)
Features
Digital Signal Processor (DSP) Block
• Playback mode supporting CAV (Constant Angular
Velocity)
• 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
• 16K RAM
Applications
CD players
Structure
Silicon gate CMOS IC
• EFM data demodulation
Absolute Maximum Ratings
• Enhanced EFM frame sync signal protection
• SEC strategy-based error correction
• Subcode demodulation and Sub Q data error
detection
• Digital spindle servo
• 16-bit traverse counter
• Asymmetry correction circuit
• CPU interface on serial bus
• Error correction monitor signal, etc. output from a
new CPU interface
• Supply voltage
• Input voltage
VDD
VI
–0.3 to +7.0
–0.3 to +7.0
V
V
(VSS – 0.3V to VDD + 0.3)
–0.3 to +7.0
–40 to +125 °C
• Output voltage
• Storage temperature Tstg
• Supply voltage difference
VO
V
VSS – AVSS –0.3 to +0.3
VDD – AVDD –0.3 to +0.3
Note) AVDD includes XVDD and AVSS includes XVSS.
V
V
• Servo auto sequencer
Recommended Operating Conditions
• Digital audio interface outputs
• Digital level meter, peak meter
• CD TEXT data demodulation
• Supply voltage
VDD
+2.7 to +5.5
V
•
Operating temperature Topr
–20 to +75 °C
Note) The VDD for the CXD2597Q varies according to
the playback speed selection.
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
VDD [V]
Playback
speed
CD-DSP block
4.75 to 5.25
3.0 to 5.5
DAC block
4×
2×
1×
Digital Filter, DAC and Analog Low-Pass Filter Blocks
• DBB (digital bass boost) function
• Double-speed playback supported
• Digital de-emphasis
4.5 to 5.5
2.7 to 5.5
2.7 to 5.5
• Digital attenuation
• Zero detection function
• 8Fs oversampling digital filter
I/O Capacitance
• Input capacitance CI
• Output capacitance CO
11 (Max.)
11 (Max.)
11 (Max.)
pF
pF
pF
• S/N: 100dB or more (master clock: 384Fs, typ.)
Logical value: 109dB
• I/O capacitance
CI/O
• THD + N: 0.007% or less (master clock: 384Fs, typ.)
• Rejection band attenuation: –60dB or less
Note) Measurement conditions VDD = VI = 0V
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.
– 1 –
E97Z35-PS
5秒后页面跳转
AO3401场效应管参数、引脚图、应用原理图
BT131可控硅参数及引脚图、工作原理详解
74LS32芯片参数、引脚图及功能真值表
全球首块英伟达H200交付 黄仁勋“送货上门”
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
