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參數(shù)資料
| 型號(hào)： | CY29948AI |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | 時(shí)鐘及定時(shí) |
| 英文描述： | 2.5V or 3.3V, 200-MHz, 1:12 Clock Distribution Buffer |
| 中文描述： | 29948 SERIES, LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, PLASTIC, TQFP-32 |
| 文件頁數(shù)： | 2/7頁 |
| 文件大?。?/td> | 108K |
| 代理商： | CY29948AI |
CY29948
Document #: 38-07288 Rev. *B
Page 2 of 7
Note:
1.
PD = Internal Pull-Down, PU = Internal Pull- UP
Output Enable/Disable
The CY29948 features a control input to enable or disable the
outputs. This data is latched on the falling edge of the input
clock. When SYNC_OE is asserted LOW, the outputs are dis-
abled in a LOW state. When SYNC_OE is set HIGH, the out-
puts are enabled as shown in
Figure 1
.
Pin Description
[1]
Pin
Name
PWR
I/O
Description
3
PECL_CLK
I, PU
PECL Input Clock
4
PECL_CLK#
I, PD
PECL Input Clock
2
TCLK
I, PU
External Reference/Test Clock Input
9, 11, 13, 15,
17, 19, 21, 23,
25, 27, 29, 31
Q(11:0)
VDDC
O
Clock Outputs
1
TCLK_SEL
I, PU
Clock Select Input
. When LOW, PECL clock is selected and when
HIGH TCLK is selected.
5
SYNC_OE
I, PU
Output Enable Input
. When asserted HIGH, the outputs are enabled
and when set LOW the outputs are disabled in a LOW state.
6
TS#
I, PU
Three-state Control Input
. When asserted LOW, the output buffers
are three-stated. When set HIGH, the output buffers are enabled.
10, 14, 18, 22,
26, 30
VDDC
2.5V or 3.3V Power Supply for Output Clock Buffers
7
VDD
2.5V or 3.3V Power Suppl
y
8, 12, 16, 20,
24, 28, 32
VSS
Common Ground
TCLK
SYNC_OE
Q
Figure 1. SYNC_OE Timing Diagram
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PDF描述 |
|---|---|
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| CY29972 | 3.3V, 125-MHz Multi-Output Zero Delay Buffer |
| CY29972AI | 3.3V, 125-MHz Multi-Output Zero Delay Buffer |
| CY2CC1910OCT | 1:10 Clock Fanout Buffer with Output Enable |
| CY2CC1910OIT | 1:10 Clock Fanout Buffer with Output Enable |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY29948AIT | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:2.5V or 3.3V, 200-MHz, 1:12 Clock Distribution Buffer |
| CY29948AXC | 功能描述:時(shí)鐘驅(qū)動(dòng)器及分配 2.5V or /3.3V 200MHz COM RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
| CY29948AXCT | 功能描述:時(shí)鐘驅(qū)動(dòng)器及分配 2.5V or /3.3V 200MHz COM RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
| CY29948AXI | 功能描述:時(shí)鐘驅(qū)動(dòng)器及分配 2.5V or /3.3V 200MHz IND RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
| CY29948AXIT | 功能描述:時(shí)鐘驅(qū)動(dòng)器及分配 2.5V or /3.3V 200MHz IND RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
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