参数资料
| 型号： | FSUSB30BQX |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 11/12页 |
| 文件大小： | 0K |
| 描述： | IC USB SWITCH 2X2 14DQFN |
| 标准包装： | 3,000 |
| 功能： | USB 开关 |
| 电路： | 1 x 2:2 |
| 导通状态电阻： | 7 欧姆 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 4.3 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFQFN 裸露焊盘 |
| 供应商设备封装： | 14-DQFN |
| 包装： | 带卷 (TR) |
Micrel, Inc.
SY55859L
January 2010
8
M9999-012110-A
hbwhelp@micrel.com or (408) 955-1690
Functional Characteristics
SY55859L is a dual cross point with excellent pin-to-pin
and part-to-part skew matching. As shown in table 1,
based on the logic value at TTL input SELA0, output
QA0 replicates either input DA0 or DA1. TTL input
SELA1 selects whether output QA1 replicates input DA0
or DA1. As shown in table 2, TTL inputs SELB0 and
SELB1 perform similarly for outputs QB0 and QB1
respectively, choosing between inputs DB0 or DB1.
If the two control inputs are tied together, SY55859L
behaves as a redundant distribution device. Depending
on the state of the combined control inputs, QA0 and
QA1 will both replicate either DA0 or DA1. If the two
control inputs are made the logical complement of each
other, the SY55859L functions as a crosspoint, either
sending DA0 to QA0 and DA1 to QA1, or sending DA0
to QA1 and DA1 to QA0. The same applies to channel
B.
SY85859L’s CML outputs are source terminated to 50
individually, 100 differentially. The CML inputs are
parallel terminated, also to 50. This improves signal
integrity. With all terminations on chip, high-speed
interfacing is greatly simplified, eliminating the need for
external termination passive components. Figures 1 and
2 show the input and output structures.
SELA0
SELA1
QA0
QA1
Function
0
DA0
Fanout Buffer
0
1
DA0
DA1
Dual Buffer
1
0
DA1
DA0
Dual Buffer
1
DA1
Fanout Buffer
CTL
Same
Redundant Distribution
CTL
/CTL
Opposite
Crosspoint
Table 1. Input to Output Connectivity, Crosspoint A
SELA0
SELA1
QA0
QA1
Function
0
DA0
Fanout Buffer
0
1
DA0
DA1
Dual Buffer
1
0
DA1
DA0
Dual Buffer
1
DA1
Fanout Buffer
CTL
Same
Redundant Distribution
CTL
/CTL
Opposite
Crosspoint
Table 2. Input to Output Connectivity, Crosspoint B
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FSUSB30BQX_12 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Low-Power, Two-Port, High-Speed USB 2.0 (480Mbps) Switch |
| FSUSB30L10X | 功能描述:电源开关 IC - USB Low Pwr 2-Prt Hi-Spd USB2.0 480MbpS Swtch RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| FSUSB30L10X_12 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Low-Power, Two-Port, High-Speed USB 2.0 (480Mbps) Switch |
| FSUSB30L10X_F113 | 制造商:Fairchild Semiconductor Corporation 功能描述:FSCFSUSB30L10X_F113 LOW POWER 2-PORT HI- |
| FSUSB30MUX | 功能描述:电源开关 IC - USB L- Pwr 2-Port Hi-Spd USB (480 Mbps) Swtch RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
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