參數(shù)資料
型號(hào): SAA7740
廠商: NXP Semiconductors N.V.
英文描述: Digital Audio Processing IC DAPIC
中文描述: 數(shù)字音頻處理集成電路賈皮奇
文件頁數(shù): 17/28頁
文件大小: 142K
代理商: SAA7740
1997 May 30
17
Philips Semiconductors
Product specification
Digital Audio Processing IC (DAPIC)
SAA7740H
AC CHARACTERISTICS
V
DDX
= 5 V; T
amb
= +25
°
C; unless otherwise specified.
TIMING CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
384f
as
MIN.
TYP.
MAX.
UNIT
f
xtal
α
f
crystal input frequency
spurious frequency
attenuation
crystal current output
(pin 59)
transconductance at
maximum current
voltage across crystal
load capacitance
half clock period of
external clock
12.288
20
16.9344
23.0
MHz
dB
I
59
slave mode only
1
mA
g
0.4
mS
V
xtal
C
L
1
2
T
clk
21
500
15
mV
pF
ns
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
t
HC
t
LC
t
r
t
f
t
h1
t
su1
t
h2
t
su2
t
acc
pulse width HIGH, DIBCK and DOBCK
pulse width LOW, DIBCK and DOBCK
DIBCK and DOBCK rise time
DIBCK and DOBCK fall time
DIWS and DOWS hold time
DIWS and DOWS set-up time
DI1D and DI2D hold time
DI1D and DI2D set-up time
DO1D and DO2D access time
110
110
10
20
10
20
20
20
25 + 0.5C
L
(C
L
in pF)
ns
ns
ns
ns
ns
ns
ns
ns
ns
DRAM timing
1
2
T
clk
t
p;RAS
t
W;RAS
t
su;RA
t
h;RA
t
dRAS;CAS
t
h;CAS
t
h;RAS
t
RAS;CA
t
hCA;RAS
t
hCA;RASp
t
lCA;RAS
t
pCAS;RAS
t
su;CA
half clock period
RAS precharge time
RAS pulse width
row address set-up time
row address hold time
RAS to CAS delay time
CAS hold time
RAS hold time
RAS to column address
column address hold time from RAS
column address hold time from RAS precharge
column address to RAS lead time
CAS to RAS precharge time
column address set-up time
21
4
×
1
2
T
clk
12
16
×
1
2
T
clk
12
1
2
T
clk
8
1
2
T
clk
12
2
×
1
2
T
clk
11
4
×
1
2
T
clk
12
2
×
1
2
T
clk
12
5
×
1
2
T
clk
11
1
2
T
clk
12
3
×
1
2
T
clk
8
4
×
1
2
T
clk
14
1
2
T
clk
8
2
×
1
2
T
clk
+
14
1
2
T
clk
+ 8
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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