參數(shù)資料
型號(hào): CDC930DL
英文描述: CPU SYSTEM CLOCK GENERATOR|SSOP|56PIN|PLASTIC
中文描述: CPU系統(tǒng)時(shí)鐘發(fā)生器| SSOP封裝| 56PIN |塑料
文件頁(yè)數(shù): 4/17頁(yè)
文件大小: 240K
代理商: CDC930DL
CDC930
133-MHz DIFFERENTIAL CLOCK SYNTHESIZER/DRIVER FOR PC MOTHERBOARDS
WITH 3-STATE OUTPUTS
SCAS641 – JULY 2000
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Function Tables
SELECT FUNCTIONS
INPUTS
OUTPUTS
FUNCTION
SEL100/133
SelA
SelB
HOST, HCLK
3VMREF, 3VMREF
PCI
3V66
3V48
REF
0
0
0
100 MHz
50 MHz
33 MHz
66 MHz
48 MHz
14.318 MHz
Active 100 MHz
0
1
1
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
All outputs 3-stated
1
0
0
133 MHz
66 MHz
33 MHz
66 MHz
48 MHz
14.318 MHz
Active 133 MHz
1
1
1
TCLK/2
TCLK/4
TCLK/8
TCLK/4
TCLK/2
TCLK
Test Mode
ENABLE FUNCTION
INPUT
OUTPUTS
SEL100/133
HCLK
2
×
IREF
On
HCLK
3VMREF, 3VMREF
PCI
3V66
3V48
REF
0
Not driven
L
L
L
L
L
1
On
On
On
On
On
On
SPREAD SPECTRUM FUNCTION
INPUT
OUTPUTS
SPREAD
0
1
Spread spectrum clocking active, –0.6% at HCLK/HCLK, 3VMREF/3VMREF, 3V66, PCI
Spread spectrum clocking nonactive
OUTPUT BUFFER SPECIFICATIONS
BUFFER NAME
VDD RANGE
(V)
IMPEDANCE
(
)
BUFFER TYPE
3V48, REF
3.135 – 3.465
20–60
TYPE 3
PCI, 3V66
3.135 – 3.465
12–65
TYPE 5
3VMREF/3VMREF
3.135 – 3.465
12–55
TYPE 5
HCLK/HCLK
TYPE X1
OUTPUT BUFFER SPECIFICATIONS
INPUTS
BOARD TARGET
TRACE/TERM Z
REFERENCE R,
IREF = VDD/3
×
Rr)
OUTPUT CURRENT
VOH AT Z
IREF = 2.32 mA
MultSel0
MultSel1
0
0
60
50
60
50
60
50
60
50
Rr = 475 1%, IREF = 2.32 mA
Rr = 475 1%, IREF = 2.32 mA
Rr = 475 1%, IREF = 2.32 mA
Rr = 475 1%, IREF = 2.32 mA
Rr = 475 1%, IREF = 2.32 mA
Rr = 475 1%, IREF = 2.32 mA
Rr = 475 1%, IREF = 2.32 mA
Rr = 475 1%, IREF = 2.32 mA
IOH = 5
×
IREF
IOH = 5
×
IREF
IOH = 6
×
IREF
IOH = 6
×
IREF
IOH = 4
×
IREF
IOH = 4
×
IREF
IOH = 7
×
IREF
IOH = 7
×
IREF
0.71 V at 60
0.59 V at 50
0.85 V at 60
0.71 V at 50
0.56 V at 60
0.47 V at 50
0.99 V at 60
0.82 V at 50
0
0
0
1
0
1
1
0
1
0
1
1
1
1
NOTE: The entries in
boldface
are the primary system configurations of interest. The outputs should be optimized for these configurations
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