參數(shù)資料
型號: SAA7335
廠商: NXP Semiconductors N.V.
英文描述: DSP for CD and DVD-ROM systems(在CD和DVD-ROM應(yīng)用中的DSP)
中文描述: DSP的CD和DVD - ROM的系統(tǒng)(在光盤和DVD - ROM光碟應(yīng)用中的數(shù)字信號處理器)
文件頁數(shù): 14/36頁
文件大?。?/td> 196K
代理商: SAA7335
1997 Aug 11
14
Philips Semiconductors
Preliminary specification
DSP for CD and DVD-ROM systems
SAA7335
Audio functions
C
ONCEALMENT
A 1-sample linear interpolator becomes active if a single
sample is flagged as erroneous but cannot be corrected.
The erroneous sample is replaced by a level midway
between the preceding and following samples. Left and
right channels have independent interpolators.
If more than one consecutive non-correctable sample is
found the last good sample is held. A 1-sample linear
interpolation is then performed before the next good
sample (see Fig.5).
DAC Interface
The SAA7335 is compatible with a wide range of ROM
block decoders and Digital-to-Analog Converters DACs.
The seven main formats that are supported are given in
Table 3.
Table 3
DAC interface formats (notes 1, 2 and 3)
Notes
1.
EIAJ is the abbreviation for Electronic Industries
Associated of Japan.
Number of BCLK periods per half WCLK period
(i.e. bits per sample).
Clock gating must be DISABLED for format mode 7.
2.
3.
MODE
BITS/WORD
FORMAT
Philips I
2
S-bus
EIAJ
Philips I
2
S-bus
EIAJ
Philips I
2
S-bus
EIAJ
Philips I
2
S-bus
1
2
3
4
5
6
7
16
16
24
24
32
32
variable
Fig.6 Philips I
2
S-bus data format 1 (16-bit word length).
handbook, full pagewidth
MGK245
D0
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
D15
D14
DATA
MISC
WCLK
SYNC
flag-MSB (1 is unreliable)
flag-LSB
flag-MSB
right
left
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