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參數(shù)資料
| 型號： | CXD2548 |
| 廠商： | Sony Corporation |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | CD Digital Signal Processor with Built-in Digital Servo and DAC |
| 中文描述： | CD數(shù)字信號處理器，具有內(nèi)置數(shù)字伺服和DAC |
| 文件頁數(shù)： | 1/113頁 |
| 文件大?。?/td> | 1286K |
| 代理商： | CXD2548 |
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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.
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)
Frame jitter free
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
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
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
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.)
Rejection band attenuation: –60dB or more
Applications
CD players
Structure
Silicon gate CMOS IC
Absolute Maximum Ratings
Supply voltage
Input voltage
V
DD
V
I
–0.3 to +7.0
–0.3 to +7.0
V
V
(V
SS
– 0.3V to V
DD
+ 0.3)
–0.3 to +7.0
–40 to +125
Output voltage
Storage temperature Tstg
Supply voltage difference
V
O
V
°C
V
SS
– AV
SS
–0.3 to +0.3
V
DD
– AV
DD
–0.3 to +0.3
V
V
Recommended Operating Conditions
Supply voltage
Operating temperature
Topr
Note)
The V
DD
(Min.) for the CXD2548R varies
according to the playback speed selection.
V
DD
Note)
–3.4 to +5.25
–20 to +75
V
°C
– 1 –
CXD2548R
E96404-PS
CD Digital Signal Processor with Built-in Digital Servo and DAC
For the availability of this product, please contact the sales office.
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.
Playback
speed
CD-DSP block DAC block
2
×
3.4V
4.5V
1
×
1
×
1
3.4V
3.4V
DSSP block
3.4V
3.4V
3.4V
3.4V
V
DD
(min.) [V]
112 pin LQFP (Plastic)
1
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.
I/O Capacitance
Input pin
Output pin
C
I
C
O
12 (Max.)
12 (Max.)
pF
pF
Note)
Measurement conditions V
DD
= V
I
= 0V
f
M
= 1MHz
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CXD2548R | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:CD Digital Signal Processor with Built-in Digital Servo and DAC |
| CXD2550P | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Digital Filter for CD |
| CXD2551M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Filter |
| CXD2551M/P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Filter |
| CXD2551P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Filter |
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