SAA7740 Philips Semiconductors, SAA7740 Datasheet - Page 17

• Manufacturer Part Number: SAA7740
• Description: Digital Audio Processing IC DAPIC
• Manufacturer: Philips Semiconductors

Philips Semiconductors
AC CHARACTERISTICS
V
TIMING CHARACTERISTICS
1997 May 30
f
I
g
V
C
1
t
t
t
t
t
t
t
t
t
DRAM timing
1
t
t
t
t
t
t
t
t
t
t
t
t
t
xtal
59
HC
LC
r
f
h1
su1
h2
su2
acc
p;RAS
W;RAS
su;RA
h;RA
dRAS;CAS
h;CAS
h;RAS
RAS;CA
hCA;RAS
hCA;RASp
lCA;RAS
pCAS;RAS
su;CA
DDX
2
2
f
xtal
L
Digital Audio Processing IC (DAPIC)
T
T
SYMBOL
SYMBOL
clk
clk
= 5 V; T
amb
= +25 C; unless otherwise specified.
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
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
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
PARAMETER
PARAMETER
slave mode only
384f
as
CONDITIONS
17
12.288
20
21
110
110
10
20
10
20
21
4
16
1
1
2
4
2
5
1
3
4
1
2
2
2
2
T
T
T
T
MIN.
clk
clk
clk
clk
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
MIN.
T
T
T
T
T
T
T
2
T
clk
clk
clk
clk
clk
clk
clk
12
12
8
clk
8
16.9344
0.4
500
12
11
12
12
11
8
14
12
TYP.
20
20
25 + 0.5C
(C
2
1
2
T
L
clk
1
in pF)
23.0
1
15
Product specification
2
MAX.
T
MAX.
+ 8
SAA7740H
clk
L
14
MHz
dB
mA
mS
mV
pF
ns
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
UNIT