參數(shù)資料
型號(hào): CY28445LFXC-5
廠商: Silicon Laboratories Inc
文件頁(yè)數(shù): 5/25頁(yè)
文件大小: 0K
描述: IC CLOCK CALISTOGA CK410M 68QFN
標(biāo)準(zhǔn)包裝: 260
類型: 時(shí)鐘/頻率發(fā)生器
PLL:
主要目的: Intel CPU 服務(wù)器
輸入: LVTTL,晶體
輸出: HCSL,LVCMOS
電路數(shù): 1
比率 - 輸入:輸出: 3:22
差分 - 輸入:輸出: 無(wú)/是
頻率 - 最大: 200MHz
電源電壓: 3.135 V ~ 3.465 V
工作溫度: 0°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 68-VFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝: 68-QFN(8x8)
包裝: 托盤(pán)
CY28445-5
..................... Document #: 38-07739 Rev *C Page 13 of 25
The CY28445-5 requires a Parallel Resonance Crystal.
Substituting a series resonance crystal will cause the
CY28445-5 to operate at the wrong frequency and violate the
ppm specification. For most applications there is a 300-ppm
frequency shift between series and parallel crystals due to
incorrect loading.
1
0
CLKREQ#3
SRC[T/C]2 Control
0 = SRC[T/C]2 not stoppable by CLKREQ#3
1 = SRC[T/C]2 stoppable by CLKREQ#3
0
CLKREQ#3
SRC[T/C]1 Control
0 = SRC[T/C]1 not stoppable by CLKREQ#3
1 = SRC[T/C]1 stoppable by CLKREQ#3
Byte 18: Control Register 18 (continued)
Bit
@Pup
Name
Description
Byte 19: Control Register 19
Bit
@Pup
Name
Description
7
0
CLKREQ#1
SRC[T/C]8 Control
0 = SRC[T/C]8 not stoppable by CLKREQ#1
1 = SRC[T/C]8 stoppable by CLKREQ#1
6
0
CLKREQ#1
SRC[T/C]7 Control
0 = SRC[T/C]7 not stoppable by CLKREQ#1
1 = SRC[T/C]7 stoppable by CLKREQ#1
5
0
CLKREQ#1
SRC[T/C]6 Control
0 = SRC[T/C]6 not stoppable by CLKREQ#1
1= SRC[T/C]6 stoppable by CLKREQ#1
4
0
CLKREQ#1
SRC[T/C]5 Control
0 = SRC[T/C]5 not stoppable by CLKREQ#1
1 = SRC[T/C]5 stoppable by CLKREQ#1
3
0
CLKREQ#1
SRC[T/C]4 Control
0 = SRC[T/C]4 not stoppable by CLKREQ#1
1 = SRC[T/C]4 stoppable by CLKREQ#1
2
0
CLKREQ#1
SRC[T/C]3 Control
0 = SRC[T/C]3 not stoppable by CLKREQ#1
1 = SRC[T/C]3 stoppable by CLKREQ#1
1
0
CLKREQ#1
SRC[T/C]2 Control
0 = SRC[T/C]2 not stoppable by CLKREQ#1
1 = SRC[T/C]2 stoppable by CLKREQ#1
0
1
CLKREQ#1
SRC[T/C]1 Control
0 = SRC[T/C]1 not stoppable by CLKREQ#1
1 = SRC[T/C]1 stoppable by CLKREQ#1
Table 5. Crystal Recommendations
Frequency
(Fund)
Cut
Loading
Load Cap
Drive
(max.)
Shunt Cap
(max.)
Motional
(max.)
Tolerance
(max.)
Stability
(max.)
Aging
(max.)
14.31818 MHz
AT
Parallel
20 pF
0.1 mW
5 pF
0.016 pF
35 ppm
30 ppm
5 ppm
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