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| 型號： | GC1012A-CQ |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DIGITAL TUNER CHIP |
| 中文描述： | 數(shù)字調(diào)諧器芯片 |
| 文件頁數(shù)： | 25/30頁 |
| 文件大小： | 186K |
| 代理商： | GC1012A-CQ |
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GRAYCHIP,INC.
- 20 -
FEBRUARY 18, 1998
GC1012A DIGITAL TUNER
DATA SHEET REV 0.1
This document contains information which may be changed at any time without notice
4.5
AC CHARACTERISTICS
Table 5: AC Characteristics (-40 TO +85
o
C Ambient, unless noted)
PARAMETER
SYMBOL
3.3V +/- 5%
5 V +/- 5%
UNITS
NOTES
MIN
MAX
MIN
MAX
Clock Frequency
F
CK
0.01
45
0.01
80
MHz
2, 3, 4
Clock low period (Below V
IL
)
t
CKL
8
5
ns
1
Clock high period (Above V
IH
)
t
CKH
8
5
ns
1
Data setup before
CK
goes high
(
X, SS, AS
or
GS
)
t
SU
4
2
ns
1
Data hold time after
CK
goes high
t
HD
0
0
ns
1
Data output delay from rising edge of
CK
.
(
I, Q, WS, IFLAG, OS, OFLOW, SO
t
DLY
2
13
2
9
ns
1, 5
Data to tristate delay
(
I
or
Q
to hiZ from
OEI
or
OEQ
)
t
DZ
2
5
2
5
1
Tristate to data output delay
(
I
or
Q
valid from
OEI
or
OEQ
)
t
ZD
3
13
3
9
ns
1, 5
Control Setup before
CS
goes low (
A
,
R/W
during read, and
A
,
R/W
,
C
during write)
t
CSU
10
10
ns
1
Control hold after
CS
goes high (
A
,
R/W
during
read, and
A
,
R/W
,
C
during write)
t
CHD
10
10
ns
1
Control strobe (
CS
) pulse width
(Write operation)
t
CSPW
60
30
ns
1,6
Control output delay
CS
low to
C
(Read Operation)
t
CDLY
120
90
ns
1,6
Control tristate delay after
CS
goes high
t
CZ
20
10
ns
1
Quiescent supply current
(V
IN
=0 or V
CC
, F
CK
= 1KHz)
I
CCQ
200
200
uA
1
Supply current
(F
CK
=45MHz)
I
CC
386
585
mA
1, 7
Notes:
1. Controlled by design and process and not directly tested. Verified on initial part evaluation.
2. Each part is tested at 25 deg C for the given specification.
3. Temperature range is verified by lot sampling.
4. The chip may not operate properly at clock frequencies below MIN and MAX.
5. Capacitive output load is 20pf. Delays are measured from the rising edge of the clock to the output level rising
above V
IH
or Falling below V
IL
.
6. Capacitive output load is 80pf.
7. Current changes linearly with voltage and clock speed.
Icc MAX)
5
------------
è
F
----------
M
45
è
585mA
=
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