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TPD12S521

更新时间： 2024-09-21 03:26:47
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德州仪器 - TI /
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8页 621K
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SINGLE-CHIP HDMI TRANSMITTER PORT PROTECTION AND INTERFACE DEVICE

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TPD12S521 数据手册

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TPD12S521  
SINGLE-CHIP HDMI TRANSMITTER PORT PROTECTION AND INTERFACE DEVICE  
www.ti.com  
SLVS639–OCTOBER 2007  
1
FEATURES  
•
Single-Chip ESD Solution for High-Definition  
Multimedia Interface (HDMI) Driver  
DBT PACKAGE  
(TOP VIEW)  
•
•
0.9 pF Capacitance for High-Speed Transition  
Minimized Differential Signaling (TMDS) Lines  
5V_SUPPLY  
LV_SUPPLY  
GND  
1
38  
5V_OUT  
2
3
4
5
6
7
8
9
10  
11  
12  
13  
37  
36  
35  
34  
33  
32  
31  
30  
29  
28  
27  
26  
ESD_BYP  
GND  
0.05-pF Matching Capacitance Between the  
Differential Signal Pair  
TMDS_D2+  
TMDS_GND  
TMDS_D2–  
TMDS_D1+  
TMDS_GND  
TMDS_D1–  
TMDS_D0+  
TMDS_GND  
TMDS_D0–  
TMDS_CK+  
TMDS_D2+  
TMDS_GND  
TMDS_D2–  
TMDS_D1+  
TMDS_GND  
TMDS_D1–  
TMDS_D0+  
TMDS_GND  
TMDS_D0–  
TMDS_CK+  
•
•
Integrated Level Shifting for the Control Lines  
±8-kV Contact ESD Protection on  
External Lines  
•
38-Pin Thin Shrink Small-Outline Package  
(TSSOP) Provides Seamless Layout Option  
With HDMI Connector  
TMDS_GND  
TMDS_CK–  
CE_REMOTE_IN  
DDC_CLK_IN  
DDC_DAT_IN  
HOTPLUG_DET_IN  
14  
15  
16  
17  
18  
19  
25  
24  
23  
22  
21  
20  
TMDS_GND  
TMDS_CK–  
CE_REMOTE_OUT  
DDC_CLK_OUT  
DDC_DAT_OUT  
HOTPLUG_DET_OUT  
•
•
•
Backdrive Protection  
Lead-Free Package  
On-Chip Current Regulator With 55-mA  
Current Output  
APPLICATIONS  
•
•
•
•
PCs  
Consumer Electronics  
Set-Top Boxes  
DVDRW Players  
DESCRIPTION/ORDERING INFORMATION  
The TPD12S521 is a single-chip ESD solution for the high-definition multimedia interface (HDMI) transmitter port.  
In many cases, the core ICs, such as the scalar chipset, may not have robust ESD cells to sustain system-level  
ESD strikes. In these cases, the TPD12S521 provides the desired system level ESD protection, such as the the  
IEC61000-4-2 (Level 4) ESD, by absorbing the energy associated with the ESD strike.  
While providing the ESD protection, the TPD12S521 adds little or no additional glitch in the high-speed  
differential signals (see Figure 3 and Figure 4). The high-speed transition minimized differential signaling (TMDS)  
lines add only 0.9 pF capacitance to the lines. In addition, the monolithic integrated circuit technology ensures  
that there is excellent matching between the two-signal pair of the differential line. This is a direct advantage over  
discrete ESD clamp solutions where variations between two different ESD clamps may significantly degrade the  
differential signal quality.  
The low-speed control lines offer voltage-level shifting to eliminate the need for an external voltage level-shifter  
IC. The control line ESD clamps add 3.5 pF capacitance to the control lines. The 38-pin DBT package offers  
seamless layout routing option to eliminate the routing glitch for the differential signal pair.  
The TPD12S521 provides an on-chip regulator with current output ratings of 55 mA at pin 38. Maximum  
overcurrent protection output drop at 55 mA on 5V_OUT is 100 mV. This current enables the HDMI receiver  
detection even when the receiver device is powered-off. DBT package pitch (0.5 mm) matches with HDMI  
connector pitch. In addition, pin mapping follows the same order as the HDMI connector pin mapping. This HDMI  
receiver port protection and interface device is specifically designed for next-generation HDMI transmitter  
protection.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCT PREVIEW information concerns products in the  
Copyright © 2007, Texas Instruments Incorporated  
formative or design phase of development. Characteristic data and  
other specifications are design goals. Texas Instruments reserves  
the right to change or discontinue these products without notice.  
12345678

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TPD12S521 替代型号

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