Datasheet

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TMDS

141

Interface

Unit

Audiovisual

Processing

Unit

HDMI

Digital TV

TMDS141

www.ti.com

SLLS737D –JUNE 2006– REVISED SEPTEMBER 2011

HDMI HIDER

Check for Samples: TMDS141

FEATURES

• Supports 2.25 Gbps Signaling Rate for up to

• 40-Pin QFN Package (RHA)

1080p Resolutions Supporting 36-bits Per

• ROHS Compatible and 260°C Reflow Rated

Pixel for Color Depth of 12-bits Per Color

• Accepts AC Couple DisplayPort Dual-Mode

• Compatible with HDMI 1.3a

Signals and Translates Them into a HDMI1.3a

• Integrated Receiver Termination Compatable TMDS Signal

• 8-dB Equalizer Compensates Losses from 5-m

APPLICATIONS

or Longer HDMI Cables

• Digital TV

• Selectable Output De-Emphasis Supports 1-m

HDMI Transmission

• DVD Player

• I

C™ Repeater Isolates Bus Capacitance at

• Set-Top-Box

Both Ends

• Audio Video Receiver

• High Impedance Outputs When Disabled

• Digital Projector

• TMDS Inputs HBM ESD Protection Exceeds

• DVI or HDMI cable

6 kV

• DisplayPort Level Translator

• 3.3-V Supply Operation

DESCRIPTION

The TMDS141 HDMI hider is designed to accommodate a 1-m HDMI cable between a HDMI connector and a

receiver. The internal cable causes signal distortion to high-speed TMDS signals, as well as increasing

capacitance to the DDC channel. Each TMDS141 contains four TMDS repeaters to transmit digital content with

signaling rates of up to 2.25-Gbps, and an I

C repeater to link extended display identification data (EDID) reading

and high-bandwidth digital content protection (HDCP) key exchange under I

C standard mode operations.

The device includes four TMDS compliant differential receivers with 50-Ω termination resistors and 3.3-V

termination voltage integrated at each receiver input pin. External terminations are not required. A built-in

frequency response equalization circuit, 8 dB at 825 MHz, compensates inter-symbol interference (ISI) losses

from a 5-m or longer input cable link.

The device also includes four TMDS compliant differential drivers. A precision resistor is connected externally

from the VSADJ pin to ground for setting the differential output voltage to be compliant with the TMDS standard.

A selectable de-emphasis circuit is available via the PRE input to drive long PCB traces or cables. When PRE is

high, the 3.5-dB high frequency gain offsets the losses due to the FR4 trace. PRE can be left open or kept low

when the de-emphasis function is not desired.

Figure 1. TYPICAL APPLICATION

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.

2PowerPAD is a trademark of Texas Instruments.

C is a trademark of Philips Electronics.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (25 pages)

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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com HDMI HIDER Check for Samples: TMDS141 FEATURES 1 • 23 • • • • • • • • • • • Supports 2.25 Gbps Signaling Rate for up to 1080p Resolutions Supporting 36-bits Per Pixel for Color Depth of 12-bits Per Color Compatible with HDMI 1.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. DESCRIPTION CONTINUED With standard TMDS terminations at the outputs, all TMDS outputs are forced high-impedance when OE is set high. The I2C repeater isolates the buses without accumulating the capacitance of both sides.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com 22 21 VCC TSDA TSCL GND 24 23 25 27 26 RSCL RSDA VCC GND OVS 29 31 28 GND RXC RXC 30 VSADJ RHA PACKAGE (TOP VIEW) GND TXC TXC 20 36 15 37 14 38 13 RX1 VCC 39 12 40 11 VCC TX0 TX0 GND TX1 TX1 VCC PRE GND TX2 Tx2 6 4 5 3 9 16 10 17 35 7 34 8 VCC RX0 RX0 GND RX1 2 18 RX2 GND VCC I2CEN OE 33 1 19 Rx2 32 TERMINAL FUNCTIONS TERMINAL NAME RX2, RX1, RX0, RXC NO.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) UNIT VCC Supply voltage range (2) Voltage range –0.5 V to 4 V RX, RX 2.0 V to 4 V TX, TX, PRE, VSADJ, OE, I2CEN, OVS, HPDn –0.5V to 4 V RSCL, RSDA, TSCL, TSDA –0.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com RECOMMENDED OPERATING CONDITIONS MIN NOM MAX VCC Supply voltage 3 3.3 3.6 UNIT V TA Operating free-air temperature 0 70 °C TMDS DIFFERENTIAL PINS (RX/ RXC) VIC Input common mode voltage VCC–400 VCC+10 VID Receiver peak-to-peak differential input voltage 150 1560 mVp-p RVSADJ Resistor for TMDS compliant voltage swing range 4.6 4.64 4.68 kΩ AVCC TMDS Output termination voltage, see Figure 2 3 3.3 3.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com ELECTRICAL CHARACTERISTICS over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS MIN ICC Supply current VIH = VCC, VIL = V CC – 0.4 V, RT = 50 Ω, AVCC = 3.3 V, RVSADJ = 4.64 kΩ, 1.65-Gbps HDMI data pattern, 165-MHz Pixel clock, PRE = Low PD Power dissipation VIH = VCC, VIL = V CC – 0.4 V, RT = 50 Ω, AVCC = 3.3 V, RVSADJ = 4.64 kΩ, 1.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com PARAMETER MEASUREMENT INFORMATION AVcc RT RT ZO = RT TMDS Driver TMDS Receiver ZO = RT Figure 2. Typical Termination for TMDS Output Driver Vcc RINT RINT RT TX RX TMDS Receiver VIC VRX TMDS Driver CL 0.5 pF AVcc RT VTX TX RX VTX VRX VIC = | VRX − VRX| Vswing = | VTX − VTX| VRX DC Coupled Vcc AC Coupled Vcc+0.2 V VRX Vcc−0.4 V Vcc−0.2 V VIC 0.4 V VIC VID(pp) 0V −0.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com PARAMETER MEASUREMENT INFORMATION (continued) 1 to N bit 1 bit VODE(SS) VOD(pp) 80% 20% t PRE Figure 4. De-Emphasis Output Voltage Waveforms and Duration Measurement Definitions 50 W IOS TMDS Driver 50 W + _ 0 V or 3.6 V Figure 5. Short Circuit Output Current Test Circuit VTX 50% VTX tsk(D) Figure 6. Definition of Intra-Pair Differential Skew VCC 1.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com PARAMETER MEASUREMENT INFORMATION (continued) AVcc RT Data + Coax Video Data Patterm Generator Coax 800mVpp or 1200mVpp Differential SMA SMA RX +EQ SMA 28AWG HDMI Cable SMA Jitter Test Instrument AVcc RT RT SMA RX +EQ Coax Transmission media HDMI cable or FR4 PCB trace TMDS141 SMA Coax Clk- OUT SMA Coax Clk+ RT Coax Coax OUT SMA Coax Jitter Test Instrument XTP1 XTP2 XTP3 XTP4 -12 A.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com PARAMETER MEASUREMENT INFORMATION (continued) START STOP V DD SCL 0V V DD SDA 1.5V 0V V DD 1.5V I2CEN 0V t SET t HOLD Figure 10.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS SUPPLY CURRENT vs FREE-AIR TEMPERATURE 120 120 110 110 100 100 90 ICC - Supply Current - mA ICC - Supply Current - mA SUPPLY CURRENT vs FREQUENCY OE = Low, PRE = High 80 70 OE = Low, PRE = Low 60 50 OE = High, PRE = Low 40 30 20 10 VCC = AVCC = 3.3 V, RT = 50 W, RVSADJ = 4.64 kW, TA = 25°C, VID(PP) = 1200 mVp-p 80 70 60 50 40 30 VCC = AVCC = 3.3 V, RT = 50 W, 20 RVSADJ = 4.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) RESIDUAL PEAK-TO-PEAK JITTER vs DATA RATE (AC Coupled Input: 3m 30AWG, Output: 1m 28AWG) RESIDUAL PEAK-TO-PEAK JITTER vs 8-MIL FR4 TRACE OUTPUT (DC Coupled Input: 5m 28AWG) 20 15 16 PRE = Low, 800 mVPP 14 12 PRE = Low, 1200 mVPP 10 8 PRE = High, 1200 mVPP 6 4 PRE = High, 800 mVPP 14 Residual Peak-peak jitter - % of Tbit Residual Peak-peak Jitter - % of Tbit VCC = AVCC = 3.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com APPLICATION INFORMATION Supply Voltage All VCC pins can be tied to a single 3.3-V power source. A 0.01-μF capacitor is connected from each VCC pin directly to ground to filter supply noise. TMDS Inputs Standard TMDS terminations are integrated on all TMDS inputs. External terminations are not required. Each input channel contains an 8-dB equalization circuit to compensate for cable losses.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com or not connected, VOL is typically 0.5 V. When OVS is connected to GND, VOL is typically 0.65 V. When OVS is connected to VCC, VOL is typically 0.8 V. VOL is always higher than the driver R input threshold, VIL, which is typically 0.4 V, preventing lockup of the repeater loop.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com VRdd V Tdd Driver T RRup RTup Master Slave CSOURCE CI CO Cslave Driver R Cmedium CCABLE Figure 21. Typical Application Figure 22 illustrates the waveforms seen on the R-side I2C-bus when the master writes to the slave through the I2C repeater circuit of the TMDS141. This looks like a normal I2C transmission, and the turn on and turn off of the acknowledge signals are slightly delayed.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com Source Sink Repeater 3.3V 5V 5V 5V Rup 5V 3.3V Rup SOURCE SOURCE 3.3V Rup Rup 1 Rup SINK SINK Rup 2 SDA RSDA TSDA RSDA TSDA RSDA TSDA SDA SCL RSCL TSCL RSCL TSCL RSCL TSCL SCL BUS MASTER C1 C2 TMDS141 C3 C2 C2 EN C2 C3 TMDS141 EN TMDS141 C1 BUS SLAVE EN Figure 24. Typical Series Application I2C Pull-up Resistors The pull-up resistor value is determined by two requirements: 1.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com Table 2. Pull-Up Resistor Upon Different Threshold Voltages and 800-pF Loads Vth-\Vth+ 0.7VDD 0.65VDD 0.6VDD 0.55VDD 0.5VDD 0.45VDD 0.4VDD 0.35VDD 0.3VDD UNIT 0.1VDD 1.14 1.32 1.54 1.80 2.13 2.54 3.08 3.84 4.97 kΩ 0.15VDD 1.20 1.41 1.66 1.97 2.36 2.87 3.59 4.66 6.44 kΩ 0.2VDD 1.27 1.51 1.80 2.17 2.66 3.34 4.35 6.02 9.36 kΩ 0.25VDD 1.36 1.64 1.99 2.45 3.08 4.03 5.60 8.74 18.12 kΩ 0.
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TMDS141 SLLS737D – JUNE 2006 – REVISED SEPTEMBER 2011 www.ti.com REVISION HISTORY Changes from Revision A (August 2006) to Revision B Page • Changed Features ................................................................................................................................................................ 1 • Changed Signaling rate from 1.65 Gbps to 2.25 Gbps ........................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.