STHDM1002A ST Microelectronics, STHDM1002A Datasheet

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STHDM1002A

Manufacturer Part Number
STHDM1002A
Description
2-to-1 High Definition Multimedia Interface (HDMI) Switch
Manufacturer
ST Microelectronics
Datasheet
Features
Applications
October 2006
Compatible with HDMI v1.2, DVI v1.0 digital
interfaces
165MHz speed operation supports all video
formats up to 1080p and SXGA (1280 x 1024
at 75Hz)
Data rate per channel for UXGA: 1.65Gbps
Low R
V
Low current consumption: 20µA
ESD human body model HBM Voltage:
Channel ON capacitance: 6pF (typ)
Switching speed: 9ns
Near-zero propagation delay: 250ps
Low crosstalk: -32dB at 825MHz
Bit-to-bit skew: 200ps
Very low ground bounce in flow through mode
Data and control inputs provide an undershoot
clamp diode
Wide bandwidth minimizes skew and jitter
Hot insertion capable
Isolated Digital Display Control (DDC) bus for
unused ports
5V tolerance to all DDC and HPD_SINK inputs
Supports bi-directional operation
Available in the TQFP48 package
–40°C to 85°C operating temperature range
Advanced TVs
Front projectors
LCD TVs
PDPs
LCD monitors
Notebook PCs
STB and DVD players
CC
±
2KV for all I/Os
operating range: 3.135V to 3.465V
ON
: 5.5 Ω(typ)
Wide bandwidth, 2 to 1 HDMI switch with single enable
Rev 1
Description
The STHDMI002A is a differential Single Pole
Double Throw (SPDT) 2 to 1, low Ron,
bi-directional HDMI switch designed for advanced
TV applications supporting HDMI/DVI which
demand high definition superior image quality.
The differential signal from the 2 ports of HDMI is
multiplexed through the switch to form a single
output HDMI channel going to the HDMI receiver
while the unselected output goes to the high-Z
state.
It is designed for very low cross-talk, low bit-to-bit
skew, high channel-to-channel noise isolation and
low I/O capacitance. The switch offers very little or
practically no attenuation of the high-speed
signals at the outputs, thus preserving the signal
integrity to pass stringent requirements.
The STHDMI002A also includes the DDC as well
as the HPD line switching. The pin layout is
optimized for easy PCB routing to the HDMI
connector and HDMI receivers.
The maximum DVI/HDMI data rate of 1.65Gbps
provides the resolution required by the advanced
HDTV and PC graphics.
Advantages
STHDMI002A provides the ability to switch a
single source output to various display devices or
switch video display devices between multiple
sources. It reduces the overall BOM costs by
eliminating the need for more costly multi input-
output controllers.
TQFP48
STHDMI002A
www.st.com
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STHDM1002A Summary of contents

Page 1

Wide bandwidth HDMI switch with single enable Features ■ Compatible with HDMI v1.2, DVI v1.0 digital interfaces ■ 165MHz speed operation supports all video formats up to 1080p and SXGA (1280 x 1024 at 75Hz) ■ Data ...

Page 2

Contents Contents 1 Functional diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

STHDMI002A 9.2 Supply bypassing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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Functional diagram 1 Functional diagram Figure 1. Functional diagram 4/26 STHDMI002A ...

Page 5

STHDMI002A 2 Functional description The STHDMI002A routes physical layer signals for high bandwidth digital video and is compatible with low voltage differential signaling standards like TMDS. The device multiplexes differential outputs from a video source to one of the two ...

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Application diagram 3 Application diagram Figure 2. Application diagram 6/26 STHDMI002A ...

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STHDMI002A 4 Pin configuration Figure 3. Pin connections TQFP48 (pitch = 0.5mm) Pin configuration 7/26 ...

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Pin configuration Table 1. Pin description Pin number Pin Name 1 VCC 2 ACLK- 3 ACLK+ 4 GND 5 A0- 6 A0+ 7 GND 8 A1- 9 A1+ 10 GND 11 A2- 12 A2+ 13 VCC 14 B_HPD 15 GND ...

Page 9

STHDMI002A Table 1. Pin description Pin number Pin name 35 Y1- 36 GND 37 Y0+ 38 Y0- 39 GND 40 YCLK+ 41 YCLK- 42 Y_DDC_SCL 43 Y_DDC_SDA 44 Y_HPD 45 A_HPD 46 VCC 47 A_DDC_SDA 48 A_DDC_SCL 4.1 Function table ...

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Maximum rating 5 Maximum rating Stressing the device above the rating listed in the “absolute maximum ratings” table may cause permanent damage to the device. these are stress ratings only and operation of the device at these or any other ...

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STHDMI002A 6 DC electrical characteristics T = -40 to +85 ° Table 5. DC electrical characteristics Symbol Parameter V HIGH level input voltage (SEL pin LOW level input voltage (SEL pin Clamp Diode voltage ...

Page 12

DC electrical characteristics Table 5. DC electrical characteristics Symbol Parameter R Switch resistance ON Status pins (Y_HPD) I Input leakage current I(leak) I Power down leakage current OFF Status pins (A_HPD, B_HPD) Switch off capacitance C I/O Switch on capacitance ...

Page 13

STHDMI002A 6.1 Capacitance T = 25° 1MHz A Table 6. Capacitance Symbol Parameter C Input capacitance IN C Port x0 to Port x1, Switch off (Note 4) OFF C Capacitance switch ...

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DC electrical characteristics 6.4 Dynamic switching characteristics T = -40 to +85 ° Table 9. Dynamic switching characteristics Symbol Parameter t Propagation delay Line Enable Time, SEL ...

Page 15

STHDMI002A 7 Test circuit for electrical characteristics Figure 4. Timing measurement test circuit Note Load capacitance: includes jig and probe capacitance Termination resistance: should be equal to ZOUT of the Pulse Generator. Figure 5. ...

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Test circuit for electrical characteristics Figure 6. Crosstalk measurement test circuit Note includes probe and jig capacitance Ω termination resistor is needed to match the loading network analyzer Crosstalk is measured at the output of ...

Page 17

STHDMI002A Figure 7. Off-isolation measurement test circuit Note includes probe and jig capacitance Ω termination resistor is needed to match the loading network analyzer Off-isolation is measured at the output of the OFF channel. For ...

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Timing waveforms 8 Timing waveforms Figure 8. Propagation delay times Figure 9. Enable and disable times 18/26 STHDMI002A ...

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STHDMI002A Figure 10. Output skew Figure 11. Pulse skew Timing waveforms 19/26 ...

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Application information 9 Application information 9.1 Power supply sequencing Proper power-supply sequencing is advised for all CMOS devices recommended to always apply V CC 9.2 Supply bypassing Bypass each of the V possible, with the smaller-valued capacitor as ...

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STHDMI002A 10 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK These packages have a Lead-free second level interconnect . The category of second Level Interconnect is marked on the package and on the ...

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Package mechanical data Figure 12. TQFP48 package dimensions 22/26 STHDMI002A ...

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STHDMI002A Figure 13. TQFP48 Tape and reel dimensions Tape & Reel TQFP48 MECHANICAL DATA DIM. MIN 12 9.5 Bo 9.5 Ko 2.1 Po 3.9 P 11.9 mm. TYP MAX. MIN. 330 13.2 ...

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Order codes 11 Order codes Table 11. Order codes Part number STHDMI002ABTR 24/26 Temperature range –65° +150° C STHDMI002A Package Packing TQFP48 Tape and reel ...

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STHDMI002A 12 Revision history Table 12. Revision history Date Revision 10-Oct-2006 1 First release Revision history Change 25/26 ...

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Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any ...

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