参数资料
| 型号： | SY58022UMI TR |
| 厂商： | Micrel Inc |
| 文件页数： | 8/9页 |
| 文件大小： | 0K |
| 描述： | IC CLK BUFFER TRANSLA 1:4 16-MLF |
| 标准包装： | 1,000 |
| 系列： | Precision Edge® |
| 类型： | 扇出缓冲器（分配），变换器 |
| 电路数： | 1 |
| 比率 - 输入:输出： | 1:4 |
| 差分 - 输入:输出： | 是/是 |
| 输入： | CML，LVDS，LVPECL |
| 输出： | LVPECL |
| 频率 - 最大： | 5.5GHz |
| 电源电压： | 2.375 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VFQFN 裸露焊盘，16-MLF? |
| 供应商设备封装： | 16-MLF?（3x3） |
| 包装： | 带卷 (TR) |
| 其它名称： | SY58022UMITR SY58022UMITR-ND |
8
Precision Edge
SY58022U
Micrel, Inc.
R2
82Ω
R2
82Ω
ZO = 50Ω
+3.3V
VT = VCC -2V
R1
130Ω
R1
130Ω
+3.3V
SY58022U
Figure 4. Parallel Termination–Thevenin Equivalent
Notes:
1. For +2.5V systems: R1 = 250Ω, R2 = 62.5Ω.
2. For +3.3V systems: R1 = 130Ω, R2 = 83Ω.
Z = 50Ω
50Ω
+3.3V
“source”
“destination”
Rb C1
0.01F
(optional)
SY58022U
Figure 5. Three-Resistor “Y–Termination”
Notes:
1. Power-saving alternative to Thevenin termination.
2. Place termination resistors as close to destination inputs as possible.
3. R
b resistor sets the DC bias voltage, equal to VT.
For +2.5V systems R
b = 19Ω.
For +3.3V systems R
b = 46Ω to 50Ω.
4. C1 is an optional bypass capacitor intended to compensate for any
t
r/tf mismatches.
OUTPUT TERMINATION RECOMMENDATIONS
LVPECL outputs have very low output impedance (open
emitter), and small signal swing which results in low EMI
(electro-magnetic interference). The LVPECL is ideal for
driving 50Ω- and 100Ω-controlled impedance transmission
lines. In addition, LVPECL is compatible for driving standard
PECL inputs since PECL inputs require only 100mV input
swing. Further, there are several techniques in terminating
the LVPECL outputs, as shown in Figure 4 through 6.
+3.3V
VT = VCC -2V
Q
/Q
VT = VCC -1.3V
SY58022U
Figure 6. Terminating Unused I/O
Notes:
1. Unused output (/Q) must be terminated to balance the output.
2. For +2.5V systems: R1 = 250Ω, R2 = 62.5Ω, R3 = 1.25kΩ,
R4 = 1.2kΩ.
For +3.3V systems: R1 = 130Ω, R2 = 82Ω, R3 = 1kΩ, R4 = 1.6kΩ.
3. Unused output pairs (Q and /Q) may be left oating.
Part Number Function
Data Sheet Link
SY58020U
6GHz, 1:4 CML Fanout Buffer/Translator
http://www.micrel.com/product-info/prod/ucts/sy58020u.shtml
Internal I/O Termination
SY58021U
4GHz, 1:4 LVPECL Fanout Buffer/Translator
http://www.micrel.com/product-info/products/sy58021u.shtml
with Internal Termination
SY58022U
5.5GHz, 1:4 Fanout Buffer/Translator w/400mV
http://www.micrel.com/product-info/products/sy58022u.shtml
LVPECL Outputs and Internal Input Termination
RELATED MICREL PRODUCTS AND SUPPORT DOCUMENTATION
相关PDF资料 |
PDF描述 |
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| SY58025UMI TR | IC MUX 10.7GBPS DUAL 2:1 32-MLF |
| SY58026UMI TR | IC MUX 10.7GBPS DUAL 2:1 32-MLF |
| SY58027UMI TR | IC MUX 10.7GBPS DUAL 2:1 32-MLF |
| SY58028UMG TR | IC MUX DIFF CML 4:1 PREC 32-MLF |
| SY58029UMI TR | IC MUX 5GBPS 4:2 FANOUT 32-MLF |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SY58023U | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:ULTRA-LOW JITTER 2 】 2 CROSSPOINT SWITCH w/CML OUTPUTS AND INTERNAL I/O TERMINATION |
| SY58023U_07 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:ULTRA-LOW JITTER 2 】 2 CROSSPOINT SWITCH w/CML OUTPUTS AND INTERNAL I/O TERMINATION |
| SY58023UMG | 功能描述:模拟和数字交叉点 IC Ultra-Precision 2x2 CML Crosspoint Switch (I Temp, Green) RoHS:否 制造商:Micrel 配置:2 x 2 封装 / 箱体:MLF-16 数据速率:10.7 Gbps 输入电平:CML, LVDS, LVPECL 输出电平:CML 电源电压-最大:3.6 V 电源电压-最小:2.375 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 产品:Digital Crosspoint 封装:Tube |
| SY58023UMG TR | 功能描述:模拟和数字交叉点 IC Ultra-Precision 2x2 CML Crosspoint Switch (I Temp, Green) RoHS:否 制造商:Micrel 配置:2 x 2 封装 / 箱体:MLF-16 数据速率:10.7 Gbps 输入电平:CML, LVDS, LVPECL 输出电平:CML 电源电压-最大:3.6 V 电源电压-最小:2.375 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 产品:Digital Crosspoint 封装:Tube |
| SY58023UMGTR | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:ULTRA-LOW JITTER 2 × 2 CROSSPOINT SWITCH w/CML OUTPUTS AND INTERNAL I/O TERMINATION |
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