參數(shù)資料
型號(hào): SAA2520GP
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: Stereo filter and codec for MPEG layer 1 audio applications
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP44
封裝: 14 X 14 X 2.20 MM, PLASTIC, QFP-44
文件頁(yè)數(shù): 31/36頁(yè)
文件大?。?/td> 151K
代理商: SAA2520GP
August 1993
31
Philips Semiconductors
Preliminary specification
Stereo filter and codec for MPEG layer 1
audio applications
SAA2520
AC CHARACTERISTICS
T
amb
=
40 to 85
°
C; V
DD
= 3.8 to 5.5 V unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Inputs
C
I
input capacitance
10
pF
X24IN and X22IN
f
crystal frequency at X22OUT,
CLK22
crystal frequency at X24OUT,
CLK24
mutual conductance
small signal gain
feedback capacitance
output capacitance
note 1
21
22.5792
24
MHz
f
note 1
23
24.576
26
MHz
gm
A
v
C
fb
C
O
100 kHz
A
v
= gm.R
o
1.5
3.5
5
10
mA/V
V/V
pF
pF
Outputs
C
O
output capacitance
10
pF
Inputs URDA, RESET, LTDATA, LTCLK, LTENA, LTCNT0, LTCNT1
t
SU
t
HD
setup time to X24IN
hold time to X24IN
15
60
ns
ns
Outputs LTDATA, MUTEDAC, DEEMDAC, ATTDAC, SYNCDAI, FDIR, FRESET
t
d
propagation delay from X24IN
80
ns
Inputs FDAF, FDAC, SDA, SCL, SWS
t
SU
t
HD
setup time to FS256
hold time to FS256
15
25
ns
ns
Outputs FDAF, FDAC, SDA, SCL, SWS, FSYNC
t
d
propagation delay from FS256
50
ns
Inputs SBDA, SBCL, SBWS, URDA, SBDIR, SBEF
t
SU
t
HD
setup time to SBMCLK
hold time to SBMCLK
15
25
ns
ns
Outputs SBDA, SBCL, SBWS
t
d
propagation delay from SBMCLK
50
ns
FS256
T
T
T
T
C
FS256 cycle time
FS256 cycle time
FS256 cycle time
SCL cycle time
f
s
= 48 kHz
f
s
= 44.1 kHz
f
s
= 32 kHz
81.4
88.6
122.1
4T
ns
ns
ns
ns
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