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| 型号： | CY28346ZXC |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 18/19页 |
| 文件大小： | 0K |
| 描述： | IC CLOCK DIFF OUT CK408 56TSSOP |
| 标准包装： | 35 |
| 类型： | * |
| PLL： | 是 |
| 输入： | 晶体 |
| 输出： | 时钟 |
| 电路数： | 1 |
| 比率 - 输入:输出： | 1:19 |
| 差分 - 输入:输出： | 无/是 |
| 频率 - 最大： | 200MHz |
| 除法器/乘法器： | 是/无 |
| 电源电压： | 3.135 V ~ 3.465 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | * |
| 封装/外壳： | * |
| 供应商设备封装： | * |
| 包装： | * |
| 其它名称： | SLCY28346ZXC |
CY28346
........................Document #: 38-07331 Rev. *C Page 8 of 19
USB and DOT 48M Phase Relationship
The 48MUSB and 48MDOT clocks are in phase. It is under-
stood that the difference in edge rate will introduce some
inherent offset. When 3V66_1/VCH clock is configured for
VCH (48-MHz) operation it is also in phase with the USB and
DOT outputs. See Figure 5.
66IN to 66B(0:2) Buffered Prop Delay
The 66IN to 66B(0:2) output delay is shown in Figure 6.
The Tpd is the prop delay from the input pin (66IN) to the
output pins (66B[0:2]). The outputs’ variation of Tpd is
described in the AC parameters section of this data sheet. The
measurement taken at 1.5V.
66B(0:2) to PCI Buffered Clock Skew
Figure 7 shows the difference (skew) between the 3V33(0:5)
outputs when the 66M clocks are connected to 66IN. This
offset is described in the Group Timing Relationship and Toler-
ances section of this data sheet. The measurements were
taken at 1.5V.
3V66 to PCI Un-Buffered Clock Skew
Figure 8 shows the timing relationship between 3V66(0:5) and
PCI(0:6) and PCI_F(0:2) when configured to run in the unbuf-
fered mode.
Table 4. Host Clock (HCSL) Buffer Characteristics
Characteristic
Min.
Max.
Ro
3000
(recommended)
N/A
Ros
Vout
N/A
1.2V
Table 5. CPU Clock Current Select Function
Mult0
Board Target Trace/Term Z
Reference R, Iref – Vdd (3*Rr)
Output Current
Voh @ Z
050
Rr = 221 1%, Iref = 5.00mA
Ioh = 4*Iref
1.0V @ 50
150
Rr = 475 1%, Iref = 2.32mA
Ioh = 6*Iref
0.7V @ 50
Table 6. Group Timing Relationship and Tolerances
Description
Offset
Tolerance
Conditions
3V66 to PCI
2.5 ns
1.0 ns
3V66 Leads PCI (unbuffered mode)
48MUSB to 48MDOT Skew
0.0 ns
1.0 ns
0 degrees phase shift
66B(0:2) to PCI offset
2.5 ns
1.0 ns
66B Leads PCI (buffered mode)
48MUSB
48MDOT
Figure 5. 48MUSB and 48MDOT Phase Relationship
66IN
66B(0:2)
Tpd
Figure 6. 66IN to 66B(0:2) Output Delay Figure
66B(0:2)
PCI(0:6)
PCIF(0:2)
1.5-
3.5ns
Figure 7. Buffer Mode – 33V66(0:1); 66BUF(0:2) Phase Relationship
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CY28346ZXC-2 | 功能描述:时钟合成器/抖动清除器 NB Clk Intel Brkdale 830M & 845 chipsets RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| CY28346ZXC-2T | 功能描述:时钟合成器/抖动清除器 NB Clk Intel Brkdale 830M & 845 chipsets RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| CY28346ZXCT | 功能描述:时钟合成器/抖动清除器 NB Clk Intel Brkdale 830M & 845 chipsets RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| CY28347 | 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:Universal Single-chip Clock Solution for VIA P4M266/KM266 DDR Systems |
| CY28347OC | 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:Universal Single-chip Clock Solution for VIA P4M266/KM266 DDR Systems |
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