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参数资料
| 型号： | SY54020ARMGTR |
| 厂商： | MICREL INC |
| 元件分类： | 时钟及定时 |
| 英文描述： | LOW SKEW CLOCK DRIVER, QCC16 |
| 封装： | 3X 3 MM, LEAD FREE, MLF-16 |
| 文件页数： | 8/14页 |
| 文件大小： | 546K |
| 代理商： | SY54020ARMGTR |
Micrel, Inc.
SY54020AR
April 2009
3
M9999-041409-A
hbwhelp@micrel.com or (408) 955-1690
Pin Description
Pin Number
Pin Name
Pin Function
2,3
IN, /IN
Differential Input: This input pair is the differential signal input to the device. It
accepts differential signals as small as 100mV (200mVPP). Each input pin internally
terminates with 50
to the VT pin. Note that this input will default to an
indeterminate state if left open. Please refer to the “Interface Applications” section
for more details.
1
VT
Input Termination Center-Tap: Each side of the differential input pair terminates to
the VT pin. This pin provides a center-tap to a termination network for maximum
interface flexibility. An internal high impedance resistor divider biases VT to allow
input AC-coupling. For AC-coupling, bypass VT with 0.1F low ESR capacitor to
VCC. See “Interface Applications” subsection and Figure 2a.
4
/EN
Single-ended TTL/CMOS-compatible input functions as a synchronous output
enable. The synchronous enable ensures that enable/disable will only occur when
the outputs are in a logic LOW state. The input switching threshold is Vcc/2. Note
that this input is internally connected to a 25k
pull-down resistor and will default to
a logic LOW state (Enabled) if left open. Outputs are disabled when /EN is high.
See Figure 1b for more details.
16
VCC
Positive Power Supply: Bypass with 0.1F//0.01F low ESR capacitors as close to
the VCC pin as possible. Supplies input and core circuitry.
8,13
VCCO
Output Supply: Bypass with 0.1F//0.01F low ESR capacitors as close to the VCCO
pins as possible. Supplies the output buffers.
5
GND,
Exposed pad
Ground: Exposed pad must be connected to a ground plane that is the same
potential as the ground pin.
15,14
12,11
10,9
7,6
Q0, /Q0
Q1, /Q1
Q2, /Q2
Q3, /Q3
CML Differential Output Pairs: Differential buffered copy of the input signal. The
output swing is typically 390mV. See “Interface Applications” subsection for
termination information.
Truth Table
IN
/IN
/EN
Q
/Q
0
1
0
1
0
1
0
X
1
0
(1)
1
(1)
Note:
1. See timing diagram, Figure 1b.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SY54020R | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Low Voltage 1.2V/1.8V/2.5V CML 1:4 Fanout Buffer with /EN and Fail-Safe Input 3.2Gbps, 2.5GHz |
| SY54020R_09 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Low Voltage 1.2V/1.8V/2.5V CML 1:4 Fanout Buffer with /EN and Fail-Safe Input 3.2Gbps |
| SY54020RMG | 功能描述:缓冲器和线路驱动器 Low Voltage CML 1:4 Fanout Buffer RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| SY54020RMG TR | 功能描述:缓冲器和线路驱动器 Low Voltage CML 1:4 Fanout Buffer RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| SY54020RMGTR | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Low Voltage 1.2V/1.8V/2.5V CML 1:4 Fanout Buffer with /EN and Fail-Safe Input 3.2Gbps |
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