參數(shù)資料
型號(hào): SAA2520
廠商: NXP Semiconductors N.V.
元件分類(lèi): Codec
英文描述: Stereo filter and codec for MPEG layer 1 audio applications
中文描述: 過(guò)濾器和立體聲的MPEG編解碼器1層音頻應(yīng)用
文件頁(yè)數(shù): 32/36頁(yè)
文件大?。?/td> 151K
代理商: SAA2520
August 1993
32
Philips Semiconductors
Preliminary specification
Stereo filter and codec for MPEG layer 1
audio applications
SAA2520
FS256 master mode (FS256,SCL and SWS are output)
t
fH
t
fH
t
fH
t
fL
t
fL
t
fL
t
sH
t
sL
t
s
FS256 HIGH time
FS256 HIGH time
FS256 HIGH time
FS256 LOW time
FS256 LOW time
FS256 LOW time
SCL HIGH time
SCL LOW time
SDA, FDAF, FDAC input setup
time before FS256 HIGH
SDA, FDAF, FDAC input hold time
after FS256 HIGH
SDA, FDAF, FDAC output hold
time after FS256 HIGH
FS256 HIGH-to SCL, SWS, SDA,
FDAF, FDAC output valid
f
s
= 48 kHz
f
s
= 44.1 kHz
f
s
= 32 kHz
f
s
= 48 kHz
f
s
= 44.1 kHz
f
s
= 32 kHz
35
38
75
35
38
75
2T-20
2T-20
20
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
H1
30
ns
t
H2
0
ns
t
D1,2
50
ns
FS256 slave mode (FS256, SCL and SWS are input)
t
fH
t
fL
t
sH
t
sL
t
H1
FS256 HIGH time
FS256 LOW time
SCL HIGH time
SCL LOW time
SDA, FDAF, FDAC output hold
time after SCL HIGH
SCL HIGH-to SDA, FDAF, FDAC
output valid
SDA, FDAF, FDAC input valid
after SCL HIGH
SDA, FDAF, FDAC input hold time
after SCL HIGH
35
35
T+35
T+35
2T-15
ns
ns
ns
ns
ns
t
D
3T+60
ns
t
S
20
ns
t
H2
T+20
ns
SBMCLK
T
t
mH
t
mL
SBMCLK cycle time
SBMCLK HIGH time
SBMCLK LOW time
120
35
75
163
205
ns
ns
ns
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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