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CY28419ZCT 参数 Datasheet PDF下载

CY28419ZCT图片预览
型号: CY28419ZCT
PDF下载: 下载PDF文件 查看货源
内容描述: 时钟合成器与差分SRC和CPU输出 [Clock Synthesizer with Differential SRC and CPU Outputs]
分类和应用: 晶体外围集成电路光电二极管时钟
文件页数/大小: 15 页 / 208 K
品牌: SPECTRALINEAR [ SPECTRALINEAR INC ]
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CY28419
Clock Synthesizer with Differential SRC and CPU Outputs
Features
• CK409B-compliant
Supports Intel Pentium 4-type CPUs
• Selectable CPU frequencies
• 3.3V power supply
• Ten copies of PCI clocks
• Two copies 48 MHz clock
• Five copies of 3V66 with one optional VCH
CPU
x4
SRC
x1
3V66
x5
PCI
x 10
REF
x2
48M
x2
• Four differential CPU clock pairs
• One differential SRC clock
• I
2
C support with readback capabilities
• Ideal Lexmark Spread Spectrum profile for maximum
electromagnetic interference (EMI) reduction
• 56-pin SSOP package
Block Diagram
XIN
XOUT
Pin Configuration
VDD_REF
REF0:1
[1]
XTAL
OSC
PLL 1
PLL Ref Freq
Divider
Network
VDD_CPU
CPUT(0:3), CPUC(0:3)
VDD_SRC
SRCT, SRCC
FS_(A:B)
VTT_PWRGD#
IREF
VDD_3V66
3V66_(0:3)
PLL2
2
VDD_PCI
PCIF(0:2)
PCI(0:6)
3V66_4/VCH
VDD_48MHz
DOT_48
USB_48
PD#
SDATA
SCLK
I
2
C
Logic
REF_0
REF_1
VDD_REF
XIN
XOUT
VSS_REF
PCIF0
PCIF1
PCIF2
VDD_PCI
VSS_PCI
PCI0
PCI1
PCI2
PCI3
VDD_PCI
VSS_PCI
PCI4
PCI5
PCI6
PD#
3V66_0
3V66_1
VDD_3V66
VSS_3V66
3V66_2
3V66_3
SCLK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
FS_B
VDD_A
VSS_A
VSS_IREF
IREF
FS_A
CPUT3
CPUC3
VDD_CPU
CPUT2
CPUC2
VSS_CPU
CPUT1
CPUC1
VDD_CPU
CPUT0
CPUC0
VSS_SRC
SRCT
SRCC
VDD_SRC
VTT_PWRGD#
VDD_48
VSS_48
DOT_48
USB_48
SDATA
3V66_4/VCH
SSOP-56
CY28419
Note:
1. Signals marked with [*] and [**] have internal pull-up and pull-down resistors, respectively.
Rev 1.0, November 22, 2006
2200 Laurelwood Road, Santa Clara, CA 95054
Tel:(408) 855-0555
Fax:(408) 855-0550
Page 1 of 15
www.SpectraLinear.com