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TUSB217AI

更新时间： 2024-11-16 02:50:27
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德州仪器 - TI /
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31页 4325K
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TUSB217A USB 2.0 High-Speed Signal Conditioner With DCP and CDP Controllers

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TUSB217A  
SLLSFK5 – JUNE 2021  
TUSB217A USB 2.0 High-Speed Signal Conditioner With DCP and CDP Controllers  
1 Features  
3 Description  
•
•
Wide supply voltage range: 2.3 - 6.5 V  
Ultra-low USB disconnect and shutdown power  
consumption  
Provides USB 2.0 high-speed signal conditioning  
Compatible with USB 2.0, OTG 2.0 and BC 1.2  
Support for low-speed, full-speed, high-speed  
signaling  
Integrated BC 1.2 Charging Downstream  
Port (CDP) and Dedicated Charging Port  
(DCP) controllers that dynamically changes per  
DCP/CDP pin  
The TUSB217A is a third-generation USB 2.0 high-  
speed signal conditioner designed to compensate  
both AC loss (due to capacitive load) and DC loss  
(due to resistive loss) in the transmission channel.  
•
•
•
The TUSB217A leverages a patented design to  
speed-up transition edges of USB 2.0 high-speed  
signal with an edge booster and increases static  
levels with a DC boost function. In addition, the  
TUSB217A includes a pre-equalization function to  
improve the receiver sensitivity and compensate the  
inter-symbol interference (ISI) jitter in application  
with longer cable length. USB low-speed and full-  
speed signal characteristics are unaffected by the  
TUSB217A.  
•
•
•
Host/Device agnostic  
Supports up to 5-m cable length  
– Four selectable signal boost (edge boost along  
with DC boost) settings via external pull-down  
resistor values  
– Three selectable RX equalization settings via  
pull-up-or-down to compensate ISI jitter for  
high-loss applications  
Supports up to 10-m cable length with two  
TUSB217A devices  
Scalable solution - devices can be daisy chained  
for high loss applications  
The TUSB217A improves signal quality without  
altering packet timing or adding propagation delay or  
latency.  
The TUSB217A helps a system to pass the USB 2.0  
high-speed near end eye compliance with a cable as  
long as 5 meters.  
•
•
•
The TUSB217A is compatible with the USB On-The-  
Go (OTG) and battery charging (BC 1.2) protocols.  
The Integrated BC 1.2 battery charging controller can  
be enabled via a control pin.  
RWB is pin compatible with TUSB211/212/214/216  
2 Applications  
•
•
•
•
•
•
Laptop, desktop/docking stations  
Portable electronics  
Tablets  
Cell phones  
Televisions  
Device Information  
PART  
NUMBER  
OP TEMP (TA)  
°C  
BODY SIZE  
(NOM)  
PACKAGE  
X2QFN  
(12RWB)  
1.60 mm x 1.60  
mm  
TUSB217A  
TUSB217AI  
2.3 œ 6.5V  
0 to 70  
Active cable, cable extenders, backplane  
X2QFN  
(12RWB)  
1.60 mm x 1.60  
mm  
-40 to 85  
VCC  
USB  
Host  
USB  
Cable  
D2  
D1  
Connector  
GND  
Simplified Schematic  
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
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