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參數(shù)資料
| 型號(hào)： | SY58022UMI TR |
| 廠商： | Micrel Inc |
| 文件頁(yè)數(shù)： | 8/9頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC CLK BUFFER TRANSLA 1:4 16-MLF |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 系列： | Precision Edge® |
| 類(lèi)型： | 扇出緩沖器（分配），變換器 |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:4 |
| 差分 - 輸入:輸出： | 是/是 |
| 輸入： | CML，LVDS，LVPECL |
| 輸出： | LVPECL |
| 頻率 - 最大： | 5.5GHz |
| 電源電壓： | 2.375 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 16-VFQFN 裸露焊盤(pán)，16-MLF? |
| 供應(yīng)商設(shè)備封裝： | 16-MLF?（3x3） |
| 包裝： | 帶卷 (TR) |
| 其它名稱(chēng)： | 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
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| SY58023U | 制造商:MICREL 制造商全稱(chēng):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 制造商全稱(chēng):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:模擬和數(shù)字交叉點(diǎn) IC Ultra-Precision 2x2 CML Crosspoint Switch (I Temp, Green) RoHS:否 制造商:Micrel 配置:2 x 2 封裝 / 箱體:MLF-16 數(shù)據(jù)速率:10.7 Gbps 輸入電平:CML, LVDS, LVPECL 輸出電平:CML 電源電壓-最大:3.6 V 電源電壓-最小:2.375 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 產(chǎn)品:Digital Crosspoint 封裝:Tube |
| SY58023UMG TR | 功能描述:模擬和數(shù)字交叉點(diǎn) IC Ultra-Precision 2x2 CML Crosspoint Switch (I Temp, Green) RoHS:否 制造商:Micrel 配置:2 x 2 封裝 / 箱體:MLF-16 數(shù)據(jù)速率:10.7 Gbps 輸入電平:CML, LVDS, LVPECL 輸出電平:CML 電源電壓-最大:3.6 V 電源電壓-最小:2.375 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 產(chǎn)品:Digital Crosspoint 封裝:Tube |
| SY58023UMGTR | 制造商:MICREL 制造商全稱(chēng):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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