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參數(shù)資料
| 型號： | CXD2027R |
| 廠商： | Sony Corporation |
| 英文描述： | DBS Audio Signal Processor |
| 中文描述： | 星展音頻信號處理器 |
| 文件頁數(shù)： | 1/32頁 |
| 文件大小： | 465K |
| 代理商： | CXD2027R |
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Description
The CXD2027Q/R are audio signal processors
designed for DBS applications. These LSIs perform
all digital processing from QPSK demodulation to
analog audio output on a single chip.
Features
QPSK and PCM demodulators and DAC output
are configured on a single chip.
Descrambler interface according to the COATEC
system and SkyPort system .
Functions
QPSK demodulator
Carrier, clock and data regeneration
ALC and VCXO adjustment-free
PCM demodulator
Frame sync protection by correlation detection
De-interleaving and descrambling
BCH error correction, range bit error correction
Audio data range control
Expansion from 10 to 14 bits in A mode
Upper bit majority correction in B mode
Control sign integration correction, chargeable
flag integration correction by master frame
synchronization
Interface output for external DAC
Digital interface output
1-bit DAC output
Quadruple oversampling filter
Digital de-emphasis circuit
1-bit stereo DAC with 2nd-order
∑
format noise
shaper
S/N ratio : 90dB (Typ.)
Distortion: 0.011% (Typ.)
CPU interface
I
2
C bus
Descrambler interface
COATEC system, SkyPort system
Mute functions
Error occurrence frequency detection mute
Audio chargeable flag detection mute
Control sign (B7) detection mute
Structure
Silicon gate CMOS IC
Applications
TVs, VCRs with built-in BS tuners
Absolute Maximum Ratings
(Ta = 25°C, Vss = 0V)
Supply voltage
V
DD
Input voltage
V
I
Output voltage
V
O
Vss – 0.5 to V
DD
+ 0.5V
Storage temperature Tstg
Vss – 0.5 to +7.0
Vss – 0.5 to V
DD
+ 0.5V
V
–55 to +150
°C
Operating Conditions
Supply voltage
Operating temperature Topr
V
DD
4.75 to 5.25
–20 to +75
V
°C
– 1 –
CXD2027Q/R
E94808-ST
DBS Audio Signal Processor
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.
CXD2027Q
64 pin QFP (Plastic)
CXD2027R
80 pin LQFP (Plastic)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CXD2043 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Digital Comb Filter (NTSC) |
| CXD2043Q | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Digital Comb Filter (NTSC) |
| CXD2044Q | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Digital Comb Filter (NTSC/PAL/PAL-M/PAL-N) |
| CXD2053AM | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Auto Wide, EDTV-II ID Detection, ID-1 Detection |
| CXD2053AM/AS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Auto Wide.EDTV-II ID Detection.ID-1 Detection |
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