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产品型号HDMIULC6-4SC6的概述

HDMIULC6-4SC6芯片概述 HDMI（High-Definition Multimedia Interface）技术的迅速发展，极大地推动了高清晰度视频和音频传输的普及。HDMIULC6-4SC6作为一种新一代的HDMI接口芯片，被广泛应用于许多电子设备中，它不仅支持高清视频传输，还具备优秀的音频传输能力，从而满足现代消费电子产品不断提高的要求。HDMIULC6-4SC6芯片的设计旨在提高数据传输速率和降低功耗，成为现代多媒体设备中不可或缺的一部分。 HDMIULC6-4SC6的详细参数 HDMIULC6-4SC6芯片采用专业技术，具有以下关键参数： 1. 传输速率：支持高达18Gbps的传输速率，满足4K视频（60Hz）的传输需求。 2. 接口类型：支持HDMI 2.0标准，同时向下兼容HDMI 1.4及更早版本。 3. 分辨率支持：支持最高4K（3840x2160）@60H...

产品型号HDMIULC6-4SC6的Datasheet PDF文件预览

HDMIULC6-4SC6

Ultra large bandwidth ESD protection

Main applications

■ HDMI ports at 1.65 Gb/s and up to 3.2 Gb/s

■ IEEE 1394a, b, or c up to 3.2 Gb/s

■ USB 2.0 ports up to 480 Mb/s (Hi-Speed)

■ Ethernet port: 10/100/1000 Mb/s

■ Video line protection

SOT23-6L

(JEDEC MO178AB)

Functional diagram

Description

I/O1

I/O4

The HDMIULC6-4SC6 is a monolithic, application

specific discrete device dedicated to ESD

protection of the HDMI connection. It also offers

the same high level of protection for IEEE 1394a

and IEEE 1394b/c, USB 2.0, Ethernet links, and

video lines.

When used with an HDMI

application, Pin 5 should not

be connected to protect

GND

I/O2

V_BUS

I/O3

against backdrive current flow.

Its ultra high cutoff frequency (5.3 GHz) secures a

high level of signal integrity. The device topology

provides this integrity without compromising the

complete protection of ICs against the most

stringent ESD strikes.

Benefits

■ ESD standards compliance guaranteed at

device level, hence greater immunity at system

level

■ ESD protection of V_BUSwhen applicable.

■ High efficiency due to low residual voltage

Features

■ 4 line 15 kV ESD protection

when confronted by an ESD surge

■ Protects V_BUSwhen applicable

■ Minimized rise and fall times for maximum data

■ Ultra high bandwidth - no inluence on signal

rise and fall times - maximised number of signal

harmonics

integrity

■ Consistent D+ / D- signal balance:

– Ultra low impact on intra-, inter-pair skew

■ Very low leakage current: 0.5 µA max.

■ Fast response time compared with varistors

■ SOT23-6L package

– Matching high bit rate HDMI requirements

and ready for future evolution

■ Low PCB space occupation - 9 mm² maximum

foot print

■ RoHS compliant

■ Low leakage current for longer operation of

battery powered devices

Complies with these standards:

■ Higher reliability offered by monolithic

integration

■ IEC 61000-4-2 level 4

– 15 kV air discharge

Order code

– 8 kV (and up to 15 kV) contact discharge

Part Number

Marking

HDMIULC6-4SC6

DL46

July 2006

Rev 2

1/11

www.st.com

Characteristics

HDMIULC6-4SC6

Characteristics

Table 1.

Symbol

Absolute ratings

Parameter

IEC 61000-4-2 air discharge

Value

Unit

V_PP

Peak pulse voltage

IEC 61000-4-2 contact discharge

MIL STD883C-Method 3015-6

T_stg

T_j

Storage temperature range

-55 to +150

125

°C

Maximum junction temperature

T_L

Lead solder temperature (10 seconds duration)

260

Table 2.

Symbol

Electrical characteristics (T_amb= 25° C)

Value

Parameter

Test Conditions

Unit

Min. Typ. Max

I_RM

Leakage current

V_RM= 5 V

I_R= 1 mA

0.5

µA

Breakdown voltage between V_BUS

and GND

V_BR

I_PP= 1 A, t_p= 8/20 µs

Any I/O pin to GND

V_CL

Clamping voltage

I_PP= 5 A, t_p= 8/20 µs

Any I/O pin to GND

V_R= 0 V, F = 1 MHz

C_i/o-GNDCapacitance between I/O and GND

V_R= 0 V, F = 825 MHz

0.6

Capacitance variation between I/O

and GND

∆C_i/o-GND

0.015

V_R= 0 V, F = 1 MHz

0.42

0.3

0.5

C_i/o-i/o

Capacitance between I/O

V_R= 0 V, F = 825 MHz

∆C_i/o-i/oCapacitance variation between I/O

0.007

2/11

HDMIULC6-4SC6

Characteristics

Figure 1.

Line capacitance versus line

voltage (typical values)

Figure 2.

Line capacitance versus frequency

(typical values)

C(pF)

1.0

0.9

0.8

1.0

0.9

V_osc=30mV_RMS

F=825MHz

500mV_RMS

OPEN

osc

=25

°C

V_I-O/GND

= 0V

BUS

0.8

0.7

0.6

0.5

0.4

0.3

_j=25

V_BUSOPEN

0.7

0.6

0.5

- GND

I/O

- GND

I/O

0.4

0.3

0.2

0.1

0.2

0.1

- C

I/O

Data line voltage (v)

F(MHz)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

100

1000

10000

Figure 3.

Relative variation of leakage

current versus junction

Figure 4.

Frequency response

temperature (typical values)

Attenuation

S21(db)

[T ] / I [T =25°C]

j RM j

-2

-4

-6

T (°C)

F(Hz)

100

125

-8

100.0k

1.0M

10.0M

100.0M

1.0G

3/11

Application examples

HDMIULC6-4SC6

Application examples

Figure 5.

HDMI Digital single link application using HDMIULC6-4SC6

HDMI

Display

(TV, flat panel,

monitor,

Host

(Set Top Box,

DVD player, PC)

Tx0-

Rx0-

projector)

Rx0+

Tx0+

TMDS

transmitter

TMDS

receiver

HDMI connectors

video

Rx1-

Tx1-

audio

Tx1+

Tx2-

Tx2+

Rx1+

Rx2-

Rx2+

Multimedia

controller

Ctrl /

status

Ctrl /

status

HDMIULC6-4SC6

TC-

RC-

RC+

TC+

TMDS links

CEC

SCL

Vcc 5V

HDMIULC6-4SC6

SDA

HPD

SDA

HPD

Control links

Figure 6.

T1/E1/Ethernet protection

SMP75-8

+V_CC

DATA

TRANSCEIVER

100 nF

SMP75-8

4/11

HDMIULC6-4SC6

Application examples

2.1

PCB layout considerations

For HDMI applications, V_CCshould not be connected. In this case the capacitor C in

Figure 7. is not needed.

Figure 7.

PCB layout considerations (V_CCconnection is application dependent)

D+1

D-1

HDMI

Connector

Side

C = 100 nF

GND

D+2

D-2

HDMIULC6-4SC6

A differential impedance of 100 Ω must be respected in the layout. Both lines of the

differential pair should have the same length.

Figure 8.

Footprint dimensions (in mm)

1.20

1.10

0.60

0.95

2.30

3.50

5/11

Technical information

HDMIULC6-4SC6

Technical information

3.1

Surge protection

The HDMIULC6-4SC6 is particularly optimized to perform ESD surge protection based on

the rail to rail topology.

The clamping voltage V_CLcan be calculated as follows:

_CL+ = V_TRANSIL+ V_Ffor positive surges

_CL- = - V_Ffor negative surges

with: V_F= V_T+ R_d.I_p

(V_Fforward drop voltage) / (V_Tforward drop threshold voltage)

and V_TRANSIL= V_BR+ R_{d_TRANSIL}. I_P

Calculation example

We assume that the value of the dynamic resistance of the clamping diode is typically:

R_d= 0.5 Ω and V_T= 1.1 V.

We assume that the value of the dynamic resisteance of the transil diode is typically

_{d_TRANSIL}= 0.5 Ω and V_BR= 6.1 V

For an IEC 61000-4-2 surge Level 4 (Contact Discharge: V_g= 8 kV, R_g= 330 Ω),

_BUS= +5 V, and, in first approximation, we assume that: I_p= V_g/ R_g= 24 A.

We find:

_CL+ = +31.2 V

_CL- = -13.1 V

Note:

The calculations do not take into account phenomena due to parasitic inductances.

3.2

Surge protection application example

If we consider that the connections from the pin V_BUSto V_CC, from I/O to data line, and from

GND to PCB GND plane are two tracks 10 mm long and 0.5 mm wide, we can assume that

the parasitic inductances, L_VBUS, L_I/O, and L_GND, of these tracks are about 6 nH. So when an

IEC 61000-4-2 surge occurs on the data line, due to the rise time of this spike (tr = 1 ns), the

voltage V_CLhas an extra value equal to L_I/O.dI/dt + L_GND.dI/dt.

The dI/dt is calculated as: dI/dt = Ip/tr = 24 A/ns for an IEC 61000-4-2 surge level 4 (contact

discharge V_g= 8 kV, R_g= 330 Ω

The over voltage due to the parasitic inductances is:

L_I/O.dI/dt = L_GND.dI/dt = 6 x 24 = 144 V

By taking into account the effect of these parasitic inductances due to unsuitable layout, the

clamping voltage will be:

_CL+ = +31.2 + 144 +144 = 319.2 V

_CL- = -13.1 - 144 -144 = -301.1 V

We can reduce as much as possible these phenomena with simple layout optimization.

6/11

HDMIULC6-4SC6

Technical information

It’s the reason why some recommendations have to be followed (see Section 3.3: How to

ensure good ESD protection).

Figure 9.

ESD behavior: parasitic phenomena due to unsuitable layout

ESD surge

on data line

V_CL+

V_BUS

Data line

L_I/O

L_VBUS

POSITIVE

SURGE

L_I/O

^I/Odt

^GNDdt

V_ccpin

V_F

V_TRANSIL+V_F

V_TRANSIL

V_CL

I/O pin

tr=1ns

GND pin

L_GND

-V_F

V_CL

V_TRANSILV_F

surge

^I/Odt

^GNDdt

NEGATIVE

SURGE

^I/Odt

^GNDdt

= -

V_F

^I/Odt

^GNDdt

V_TRANSIL= V_BR+Rd.Ip

V_CL-

3.3

How to ensure good ESD protection

While the HDMIULC6-4SC6 provides a high immunity to ESD surge, an efficient protection

depends on the layout of the board. In the same way, with the rail to rail topology, the track

from data lines to I/O pins, from V_CCto V_BUSpin, and from GND plane to GND pin must be

as short as possible to avoid over voltages due to parasitic phenomena (see Figure 9 and

Figure 10 for layout considerations).

Figure 10. ESD behavior: layout

optimization

Figure 11. ESD behavior: measurement

conditions

ESD SURGE

TEST BOARD

OUT

Unsuitable layout

HDMIULC6 4SC6

Vbus

Optimized layout

7/11

Technical information

HDMIULC6-4SC6

Figure 12. Remaining voltage after the Figure 13. Remaining voltage after the

HDMIULC6-4SC6 during

positive ESD surge

HDMIULC6-4SC6 during

negative ESD surge

Note:

The measurements have been done with the HDMIULC6-4SC6 in open circuit.

IMPORTANT:

An important precaution to take is to put the protection device as close as possible to the

disturbance source (generally the connector).

3.4

Crosstalk behavior

Figure 14. Crosstalk phenomena

R_G1

Line 1

V_G1

₁V_G1

₁₂V_G2

R_L1

R_G2

Line 2

V_G2

α₂

V_G2

₂₁V_G1

R_L2

DRIVERS

RECEIVERS

The crosstalk phenomena is due to the coupling between 2 lines. The coupling factor (β₁₂or

β₂₁) increases when the gap across lines decreases, particularly in silicon dice. In the

example above the expected signal on load R_L2is α₂V_G2, in fact the real voltage at this point

has got an extra value β₂₁V_G1. This part of the V_G1signal represents the effect of the

crosstalk phenomenon of the line 1 on the line 2. This phenomenon has to be taken into

account when the drivers impose fast digital data or high frequency analog signals in the

disturbing line. The perturbed line will be more affected if it works with low voltage signal or

high load impedance (few kΩ).

8/11

HDMIULC6-4SC6

Figure 15. Analog crosstalk measurements

Technical information

TEST BOARD

NETWORK ANALYSER

PORT 2

NETWORK ANALYSER

PORT 1

Vbus

Figure 15 gives the measurement circuit for the analog application. In usual frequency range

of analog signals (up to 240 MHz) the effect on disturbed line is less than -45 dB (see

Figure 16).

Figure 16. Analog crosstalk results

0.00

-30.00

-60.00

-90.00

F (Hz)

-120.00

100.0k

1.0M

10.0M

100.0M

1.0G

As the HDMIULC6-4SC6 is designed to protect high speed data lines, it must ensure a good

transmission of operating signals. The frequency response (Figure 4.) gives attenuation

information and shows that the HDMIULC6-4SC6 is well suitable for data line transmission

up to 3.2 Gb/s.

9/11

Package information

HDMIULC6-4SC6

Package information

Table 3.

SOT23-6L dimensions

DIMENSIONS

Millimeters

Min. Typ. Max. Min. Typ. Max.

REF.

Inches

0.90

1.45 0.035

0.10

0.057

0.004

0.051

0.02

0.90

0.35

0.09

2.80

1.50

1.30 0.035

0.50 0.014

0.20 0.004

3.05 0.110

1.75 0.059

0.008

0.120

0.069

0.95

0.037

2.60

0.10

0°

3.00 0.102

0.60 0.004

0.118

0.024

10°

0°

In order to meet environmental requirements, ST offers these devices in ECOPACK®

packages. These packages have a lead-free second level interconnect. The category of

second level interconnect is marked on the package and on the inner box label, in

compliance with JEDEC Standard JESD97. The maximum ratings related to soldering

conditions are also marked on the inner box label. ECOPACK is an ST trademark.

ECOPACK specifications are available at: www.st.com.

Ordering information

Ordering code

Marking

Package

Weight

Base qty

Delivery mode

HDMIULC6-4SC6

DL46

SOT23-6L

16.7 mg

3000

Tape and reel

Revision history

Date

Revision

Description of Changes

28-Mar-2006

26-Jul-2006

First Issue

Replaced technical information section.

10/11

HDMIULC6-4SC6

Please Read Carefully:

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right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any

time, without notice.

All ST products are sold pursuant to ST’s terms and conditions of sale.

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third party products or services or any intellectual property contained therein.

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11/11

HDMIULC6-4SC6相关文章

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HDMIULC6-4SC6产品参数

型号:	HDMIULC6-4SC6
Brand Name：	STMicroelectronics
是否Rohs认证：	符合
生命周期：	Active
IHS 制造商：	STMICROELECTRONICS
包装说明：	ROHS COMPLIANT PACKAGE-6
针数：	178
Reach Compliance Code：	compliant
ECCN代码：	EAR99
HTS代码：	8541.10.00.50
Factory Lead Time：	13 weeks
风险等级：	1.55
Samacsys Confidence：	3
Samacsys Status：	Released
Samacsys PartID：	5546
Samacsys Pin Count：	6
Samacsys Part Category：	Integrated Circuit
Samacsys Package Category：	SOT23 (6-Pin)
Samacsys Footprint Name：	SOT23-6L
Samacsys Released Date：	2015-04-16 09:48:08
Is Samacsys：	N
其他特性：	HIGH RELIABILITY
最小击穿电压：	6 V
击穿电压标称值：	6 V
最大钳位电压：	12 V
配置：	SINGLE
二极管元件材料：	SILICON
二极管类型：	TRANS VOLTAGE SUPPRESSOR DIODE
JEDEC-95代码：	MO-178AB
JESD-30 代码：	R-PDSO-G6
JESD-609代码：	e4
湿度敏感等级：	1
元件数量：	1
端子数量：	6
最高工作温度：	125 °C
封装主体材料：	PLASTIC/EPOXY
封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	260
极性：	UNIDIRECTIONAL
认证状态：	Not Qualified
子类别：	Transient Suppressors
表面贴装：	YES
技术：	AVALANCHE
端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：	GULL WING
端子位置：	DUAL
处于峰值回流温度下的最长时间：	30
Base Number Matches：	1

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