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SAA2520 Datasheet, PDF (32/36 Pages) NXP Semiconductors – Stereo filter and codec for MPEG layer 1 audio applications
◁
Philips Semiconductors
Stereo filter and codec for MPEG layer 1
audio applications
Preliminary specification
SAA2520
SYMBOL
PARAMETER
CONDITIONS MIN.
FS256 master mode (FS256,SCL and SWS are output)
tfH
FS256 HIGH time
fs = 48 kHz
tfH
FS256 HIGH time
fs = 44.1 kHz
tfH
FS256 HIGH time
fs = 32 kHz
tfL
FS256 LOW time
fs = 48 kHz
tfL
FS256 LOW time
fs = 44.1 kHz
tfL
FS256 LOW time
fs = 32 kHz
tsH
SCL HIGH time
tsL
SCL LOW time
ts
SDA, FDAF, FDAC input setup
time before FS256 HIGH
tH1
SDA, FDAF, FDAC input hold time
after FS256 HIGH
tH2
SDA, FDAF, FDAC output hold
time after FS256 HIGH
tD1,2
FS256 HIGH-to SCL, SWS, SDA,
FDAF, FDAC output valid
35
38
75
35
38
75
2T-20
2T-20
20
30
0
−
FS256 slave mode (FS256, SCL and SWS are input)
tfH
FS256 HIGH time
tfL
FS256 LOW time
tsH
SCL HIGH time
tsL
SCL LOW time
tH1
SDA, FDAF, FDAC output hold
time after SCL HIGH
tD
SCL HIGH-to SDA, FDAF, FDAC
output valid
tS
SDA, FDAF, FDAC input valid
after SCL HIGH
tH2
SDA, FDAF, FDAC input hold time
after SCL HIGH
35
35
T+35
T+35
2T-15
−
20
T+20
SBMCLK
T
SBMCLK cycle time
120
tmH
SBMCLK HIGH time
35
tmL
SBMCLK LOW time
75
TYP.
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
163
−
−
MAX. UNIT
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
50
ns
−
ns
−
ns
−
ns
−
ns
−
ns
3T+60
ns
−
ns
−
ns
205
ns
−
ns
−
ns
August 1993
32
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