參數(shù)資料
型號(hào)： SY58022U
廠商： Micrel Semiconductor,Inc.
英文描述： 5.5 GHz 1:4 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS AND INTERNAL INPUT TERMINATOR
中文描述： 5.5千兆赫1:4扇出緩沖器/翻譯w/400mV LVPECL輸出的內(nèi)部輸入終結(jié)者
文件頁(yè)數(shù)： 8/9頁(yè)
文件大小： 258K
代理商： SY58022U
8
Precision Edge
SY58022U
Micrel, Inc.
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
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
resistor sets the DC bias voltage, equal to V
T
.
For +2.5V systems R
b
= 19Ω.
For +3.3V systems R
= 46Ω to 50Ω.
4. C1 is an optional bypass capacitor intended to compensate for any
t
r
/t
f
mismatches.
RELATED MICREL PRODUCTS AND SUPPORT DOCUMENTATION
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.
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 floating.
Part Number Function
SY58020U
SY58021U
SY58022U
M-0317
Data Sheet Link
http://www.micrel.com/product-info/prod/ucts/sy58020u.shtml
6GHz, 1:4 CML Fanout Buffer/Translator
Internal I/O Termination
4GHz, 1:4 LVPECL Fanout Buffer/Translator
with Internal Termination
5.5GHz, 1:4 Fanout Buffer/Translator w/400mV
LVPECL Outputs and Internal Input Termination
16-MLF Manufacturing Guidelines
Exposed Pad Application Note
HBW Solutions
http://www.micrel.com/product-info/products/sy58021u.shtml
http://www.micrel.com/product-info/products/sy58022u.shtml
www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf
http://www.micrel.com/product-info/as/solutions.shtml
相關(guān)PDF資料
PDF描述
SY58022UMI 5.5 GHz 1:4 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS AND INTERNAL INPUT TERMINATOR
SY58022UMITR 5.5 GHz 1:4 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS AND INTERNAL INPUT TERMINATOR
SY58024UMG ULTRA-LOW JITTER DUAL 2 】 2 CROSSPOINT SWITCH w/ CML OUTPUTS AND INTERNAL I/O TERMINATION
SY58024UMGTR ULTRA-LOW JITTER DUAL 2 】 2 CROSSPOINT SWITCH w/ CML OUTPUTS AND INTERNAL I/O TERMINATION
SY58027UMG ULTRA PRECISION DUAL 2:1 400mV LVPECL MUX WITH INTERNAL TERMINATION
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SY58022U_09 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:5.5GHz 1:4 FANOUT BUFFER/ translator w/400mV LVPECL OUTPUTS
SY58022UMG 功能描述:緩沖器和線路驅(qū)動(dòng)器 Ultra High Speed 1:4 400mV LVPECL Fanout Buffer/Translator (I Temp, Green) RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
SY58022UMG TR 功能描述:緩沖器和線路驅(qū)動(dòng)器 Ultra High Speed 1:4 400mV LVPECL Fanout Buffer/Translator (I Temp, Green) RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
SY58022UMGTR 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:5.5GHz 1:4 FANOUT BUFFER/ translator w/400mV LVPECL OUTPUTS
SY58022UMI 功能描述:IC CLK BUFFER TRANSLA 1:4 16-MLF RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘緩沖器，驅(qū)動(dòng)器 系列:Precision Edge® 標(biāo)準(zhǔn)包裝:1 系列:HiPerClockS™ 類型:扇出緩沖器（分配），多路復(fù)用器 電路數(shù):1 比率 - 輸入:輸出:2:18 差分 - 輸入:輸出:是/無(wú) 輸入:CML，LVCMOS，LVPECL，LVTTL，SSTL 輸出:LVCMOS，LVTTL 頻率 - 最大:250MHz 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:- 其它名稱:800-1923-6
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