參數(shù)資料
型號: SAA2520
廠商: NXP Semiconductors N.V.
元件分類: Codec
英文描述: Stereo filter and codec for MPEG layer 1 audio applications
中文描述: 過濾器和立體聲的MPEG編解碼器1層音頻應(yīng)用
文件頁數(shù): 33/36頁
文件大?。?/td> 151K
代理商: SAA2520
August 1993
33
Philips Semiconductors
Preliminary specification
Stereo filter and codec for MPEG layer 1
audio applications
SAA2520
Notes
1.
2.
% deviation from nominal frequency must be the same for X24, X22, and FS256 inputs to within 0.2%
Minimum value for bit rate = 448 kB/s
Typical value for bit rate = 384 kB/s
Maximum value for bit rate = 32 kB/s
SBMCLK master mode (SBCL, SBWS and SBDA are output)
T
C
T
C
T
C
T
C
t
cH
t
cH
t
cH
t
cH
t
cL
t
cL
t
cL
t
cL
t
D1
t
D2
SBCL cycle time
SBCL cycle time
SBCL cycle time
SBCL cycle time
SBCL HIGH time
SBCL HIGH time
SBCL HIGH time
SBCL HIGH time
SBCL LOW time
SBCL LOW time
SBCL LOW time
SBCL LOW time
SBWS, SBDA hold
SBWS, SBDA valid
384 kB/s
256 kB/s
192 kB/s
128 kB/s
384 kB/s
256 kB/s
192 kB/s
128 kB/s
384 kB/s
256 kB/s
192 kB/s
128 kB/s
to SBCL LOW
after SBCL 0
4T
20
6T
20
8T
20
12T
20
4T
20
6T
20
8T
20
12T
20
20
8T
12T
16T
24T
20
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SBMCLK slave mode (SBCL, SBWS and SBDA are input)
T
C
t
cH
t
cL
t
S1
SBCL cycle time
SBCL HIGH time
SBCL LOW time
SBWS, SBDA setup time
note 2
6.86T
T + 30
T + 30
T + 30
8T
96T
ns
ns
ns
ns
before SBCL
HIGH
after SBCL
HIGH
after SBCL
HIGH
after SBCL
HIGH
t
H1
SBWS, SBDA hold time
30
ns
t
S2
delay before SBEF valid
T
30
ns
t
H2
SBEF hold time
2T
30
ns
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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