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參數資料
型號: W6694
廠商: WINBOND ELECTRONICS CORP
英文描述: PCI Bus ISDN S/T Interface Controller(PCI總線的ISDN S/T接口控制器)
中文描述: PCI總線的綜合業務數字網的S / T接口控制器(綜合業務數字網的PCI總線的S / T的接口控制器)
文件頁數: 89/98頁
文件大小: 1338K
代理商: W6694
Data Sheet
W6692A PCI ISDN S/T-Controller
Inactive or during binary ONE
During binary ZERO (R
L
=50
)
Publication Release Date:
Mar,2000
Revision 1.0
-89 -
Transmitter
output
impedence
Note
:
1)
Due to the transformer, the load resistance seen by the circuit is four times R
L
.
Capacitances
T
A
=25
°
C, V
DD
= 5 V
±
5 %, V
SSA
= 0V, V
SSD
=0V, fc=1 Mhz, unmeasured pins grounded.
Parameter
Symbol
Min.
Input capacitance
C
IN
I/O pin capacitance
C
IO
Output capacitance
against V
SSA
Input capacitance
C
IN
Load capacitance
C
L
Recommended oscillator circuits
Crystal specifications
Parameter
Symbol
Frequency
f
Frequency calibration
tolerance
Load capacitance
C
L
Oscillator mode
Note
: The load capacitance C
L
depends on the crystal specification. The typical values are 33 to 47 pF.
External ocsillator input (XTAL1) clock characteristics
Parameter
Min.
Max.
Duty cycle
1:2
2:1
R
X
30
23
k
SX1,2
Max.
7
7
10
Unit
pF
pF
pF
Remarks
All pins except SR1,2
All pins except SR1,2
SX1,2
C
OUT
7
50
pF
pF
SR1,2
XTAL1,2
Values
7.680
Max. 100
Unit
MHz
ppm
Max. 50
Fundamental
pF
50
XTAL1
XTAL2
51
7.68MHz
C
L
50pF
C
L
C
L
50
XTAL1
XTAL2
51
External
oscillator
signal
N.C.
or
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