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CXD2587

Description
CD Digital Signal Processor with Built-in Digital Servo and DAC
File Size662KB,106 Pages
ManufacturerSONY
Websitehttp://www.sony.co.jp
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CXD2587 Overview

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

CXD2587Q
CD Digital Signal Processor with Built-in Digital Servo and DAC
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.
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
80 pin LQFP (Plastic)
Applications
CD players
Structure
Silicon gate CMOS IC
Absolute Maximum Ratings
Supply voltage
V
DD
–0.3 to +7.0
V
Input voltage
V
I
–0.3 to +7.0
V
(V
SS
– 0.3V to V
DD
+ 0.3V)
Output voltage
V
O
–0.3 to +7.0
V
Storage temperature Tstg
–40 to +125 °C
Supply voltage difference
V
SS
– AV
SS
–0.3 to +0.3
V
V
DD
– AV
DD
–0.3 to +0.3
V
Note)
AV
DD
includes XV
DD
and AV
SS
includes XV
SS
.
Recommended Operating Conditions
Supply voltage
V
DD
3.0 to 4.0
V
Operating temperature
Topr
–20 to +75
°C
The V
DD
for the CXD2587Q varies according to the
playback speed.
Playback
speed
V
DD
[V]
CD-DSP block
4.75 to 5.25
3.0 to 5.5
2.7 to 5.5
4.5 to 5.5
2.7 to 5.5
DAC block
I/O Capacitance
Input pin
C
I
11 (Max.)
Output pin
C
O
11 (Max.)
I/O pin
C
I/O
11 (Max.)
Note)
Measurement conditions V
DD
= V
I
= 0V
f
M
= 1MHz
pF
pF
pF
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–
E97518-PS

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CXD2587 CXD2587Q
Description CD Digital Signal Processor with Built-in Digital Servo and DAC CD Digital Signal Processor with Built-in Digital Servo and DAC
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Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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