CXD2587Q Datasheet, PDF (1/106 Pages) Sony Corporation – CD Digital Signal Processor with Built-in Digital Servo and DAC

CXD2587Q
CD Digital Signal Processor with Built-in Digital Servo and DAC
For the availability of this product, please contact the sales office.
Description
The CXD2587Q 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.
80 pin LQFP (Plastic)
Features
Digital Signal Processor (DSP) Block
• 1×, 2×, 4× speed playback supported
• 16K-RAM
• EFM data demodulation
• 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 compensation circuit
• CPU interface on serial bus
• Error correction monitor signal, etc. output from a
new CPU interface
• Servo auto sequencer
• Digital audio interface outputs
• Digital level meter, peak meter
• CD TEXT data demodulation
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 function
• Surf jump function supporting micro two-axis
Digital Filter, DAC and Analog Low-pass Filter Blocks
• DBB (digital bass boost) function
• Double-speed playback supported
• Digital de-emphasis
• Digital attenuation
• 8Fs oversampling filter
• 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
Applications
CD players
Structure
Silicon gate CMOS IC
Absolute Maximum Ratings
• Supply voltage VDD
–0.3 to +7.0 V
• Input voltage
VI
–0.3 to +7.0 V
(VSS – 0.3V to VDD + 0.3V)
• Output voltage VO
–0.3 to +7.0 V
• Storage temperature Tstg
–40 to +125 °C
• Supply voltage difference
VSS – AVSS –0.3 to +0.3 V
VDD – AVDD –0.3 to +0.3 V
Note) AVDD includes XVDD and AVSS includes XVSS.
Recommended Operating Conditions
• Supply voltage
VDD^∗
3.0 to 4.0 V
• Operating temperature
Topr
–20 to +75 °C
∗ _{The VDD for the CXD2587Q varies according to the}
playback speed.
Playback
speed
VDD [V]
CD-DSP block DAC block
4×
4.75 to 5.25
2×
3.0 to 5.5
4.5 to 5.5
1×
2.7 to 5.5
2.7 to 5.5
I/O Capacitance
• Input pin
CI
11 (Max.) pF
• Output pin
CO
11 (Max.) pF
• I/O pin
CI/O
11 (Max.) pF
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.
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E97518-PS