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LMH0356

3G/HD/SD

SDI Reclocker

SDI In

ENABLE

SD/HD

Clock or

Second

Data Output

FAULT

SDA SCL

LMH0307

3G/HD/SD

SDI Dual Cable Driver

Microcontroller

FPGA

SMBus

Data

SMBus

Clock

SDI

SDI Out

LMH0307

www.ti.com

SNLS286I –APRIL 2008–REVISED APRIL 2013

3 Gbps HD/SD SDI Dual Output Cable Driver With Cable Detect

Check for Samples: LMH0307

FEATURES

DESCRIPTION

The LMH0307 3 Gbps HD/SD SDI Dual Output Cable

• SMPTE 424M, SMPTE 292M, SMPTE 344M, and

Driver with Cable Detect is designed for use in

SMPTE 259M Compliant

SMPTE 424M, SMPTE 292M, SMPTE 344M, and

• Data Rates to 2.97 Gbps

SMPTE 259M serial digital video applications. The

• Supports DVB-ASI at 270 Mbps

LMH0307 implements two complementary output

drivers and drives 75Ω transmission lines (Belden

• Cable Detect on Output

1694A, Belden 8281, or equivalent) at data rates up

• Loss of Signal Detect at Input

to 2.97 Gbps.

• Output Driver Power Down Control

The LMH0307 includes intelligent sensing capabilities

• Typical Power Consumption: 230 mW in SD

to improve system diagnostics. The cable detect

Mode and 275 mW in HD Mode

feature senses near-end termination to determine if a

cable is correctly attached to the output BNC. Input

• Power Save Mode Typical Power

loss of signal (LOS) detects the presence of a valid

Consumption: 4 mW

signal at the input of the cable driver. These sensing

• Single 3.3V Supply Operation

features may be used to alert the user of a system

• Differential Input

fault and activate a deep power save mode, reducing

the cable driver's power consumption to 4 mW. These

• Dual Complementary 75Ω Outputs

features are accessible via an SMBus interface.

• Selectable Slew Rate

The LMH0307 provides two selectable slew rates for

• Industrial Temperature Range: −40°C to +85°C

SMPTE 259M and SMPTE 424M / 292M compliance.

• 16-Pin WQFN or 25-Ball CS-BGA package

The output amplitude is adjustable ±10% in 5 mV

steps via the SMBus.

APPLICATIONS

The LMH0307 is powered from a single 3.3V supply.

• SMPTE 424M, SMPTE 292M, SMPTE 344M, and

Power consumption is typically 230 mW in SD mode

SMPTE 259M Serial Digital Interfaces

and 275 mW in HD mode. The LMH0307 is available

• Digital Video Routers and Switches

in two space-saving packages: a 4 x 4 mm 16-pin

WQFN and even more space-efficient 3 x 3 mm 25-

• Distribution Amplifiers

ball CS-BGA package.

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.

2All trademarks are the property of their respective owners.

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 (23 pages)

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LMH0307 www.ti.com SNLS286I – APRIL 2008 – REVISED APRIL 2013 3 Gbps HD/SD SDI Dual Output Cable Driver With Cable Detect Check for Samples: LMH0307 FEATURES DESCRIPTION • The LMH0307 3 Gbps HD/SD SDI Dual Output Cable Driver with Cable Detect is designed for use in SMPTE 424M, SMPTE 292M, SMPTE 344M, and SMPTE 259M serial digital video applications.
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LMH0307 SNLS286I – APRIL 2008 – REVISED APRIL 2013 www.ti.com 2 VEE 3 RREF 4 SDO1 SDO1 FAULT 14 13 LMH0307SQ (top view) RSTI 5 6 7 8 SCL SDI 15 SDA 1 16 ENABLE SDI RSTO Connection Diagram 12 SDO0 11 SDO0 10 SD/HD 9 VCC The exposed die attach pad is a negative electrical terminal for this device. It should be connected to the negative power supply voltage. Figure 1.
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LMH0307 www.ti.com SNLS286I – APRIL 2008 – REVISED APRIL 2013 PIN DESCRIPTIONS WQFN Pin CS-BGA Ball Name Description 1 A1 SDI Serial data true input. 2 B1 SDI Serial data complement input. 4 D1, E1 RREF Bias resistor. Connect a 750Ω resistor to VCC (also connect D1 to E1 on CS-BGA version). 5 D2 RSTI Reset input. RSTI has an internal pullup. H = Normal operation. L = Device reset. The device operates with default register settings. Forcing RSTI low also forces RSTO low.
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LMH0307 SNLS286I – APRIL 2008 – REVISED APRIL 2013 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. Absolute Maximum Ratings (1) −0.5V to 3.6V Supply Voltage −0.3V to VCC+0.
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LMH0307 www.ti.com SNLS286I – APRIL 2008 – REVISED APRIL 2013 DC Electrical Characteristics Over Supply Voltage and Operating Temperature ranges, unless otherwise specified (1) (2). Symbol Parameter VCMIN Input Common Mode Voltage VSDI Input Voltage Swing VCMOUT Output Common Mode Voltage VSDO Output Voltage Swing VIH Input Voltage High Level VIL Input Voltage Low Level ICC Supply Current Conditions Reference SDI, SDI Differential Min Typ 1.
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LMH0307 SNLS286I – APRIL 2008 – REVISED APRIL 2013 www.ti.com AC Electrical Characteristics Over Supply Voltage and Operating Temperature ranges, unless otherwise specified (1). Symbol Parameter DRSDI Input Data Rate tjit Additive Jitter tr,tf Output Rise Time, Fall Time Conditions Reference Duty Cycle Distortion SDO, SDO Output Overshoot tSK SDO1 to SDO0 Skew Output Return Loss Units 2970 Mbps psP-P 1.
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LMH0307 www.ti.com SNLS286I – APRIL 2008 – REVISED APRIL 2013 TIMING DIAGRAM tLOW tHIGH tR SCL tHD:STA tBUF tF tHD:DAT tSU:STA tSU:DAT tSU:STO SDA SP ST ST SP Figure 3. SMBus Timing Parameters DEVICE OPERATION INPUT INTERFACING The LMH0307 accepts either differential or single-ended input. For single-ended operation, the unused input must be properly terminated. OUTPUT INTERFACING The LMH0307 uses current mode outputs.
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LMH0307 SNLS286I – APRIL 2008 – REVISED APRIL 2013 www.ti.com The cable driver must be enabled for the termination detection to operate. If the Termination Fault will be used to power down the LMH0307, then periodic polling (enabling) is recommended to monitor the output termination. For example, when a Fault condition is triggered, ENABLE can be driven low to power down the device. The LMH0307 should be re-enabled periodically to check the status of the output termination.
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LMH0307 www.ti.com SNLS286I – APRIL 2008 – REVISED APRIL 2013 READING A REGISTER To read a register, the following protocol is used (see SMBus 2.0 specification). 1. The Host drives a START condition, the 7-bit SMBus address, and a “0” indicating a WRITE. 2. The Device (Slave) drives the ACK bit (“0”). 3. The Host drives the 8-bit Register Address. 4. The Device drives an ACK bit (“0”). 5. The Host drives a START condition. 6. The Host drives the 7-bit SMBus Address, and a “1” indicating a READ. 7.
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LMH0307 SNLS286I – APRIL 2008 – REVISED APRIL 2013 www.ti.com APPLICATION INFORMATION Figure 4 shows the application circuit for the LMH0307. VCC 6.8 nH 0.1 PF 75: 75: 75: 4.7 PF Coaxial Cable 75: 4.7 PF Coaxial Cable 75: 75: 6.8 nH VCC VCC 10 k: FAULT 75: 0.1 PF 75: RSTO 14 15 13 FAULT 1 Differential Input SDO1 49.9: SDO1 RSTO 16 6.8 nH SDI SDO0 SDI SDO0 SD/HD 75: 4.7 PF Coaxial Cable 10 75: 75: DAP SCL 9 8 RSTI 5 VCC SDA RREF VCC 11 6.
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LMH0307 www.ti.com SNLS286I – APRIL 2008 – REVISED APRIL 2013 COMMUNICATING WITH MULTIPLE LMH0307 CABLE DRIVERS VIA THE SMBus A common application for the LMH0307 will utilize multiple cable driver devices. Even though the LMH0307 devices all have the same default SMBus device ID (address), it is still possible for them share the SMBus signals as shown in Figure 5. A third signal is required from the host to the first device. This signal acts as a “Enable / Reset” signal.
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LMH0307 SNLS286I – APRIL 2008 – REVISED APRIL 2013 www.ti.com Table 1. SMBus Registers Address R/W Name Bits Field Default Description 00h R/W ID 7:1 DEVID 0010111 Device ID. Writing this register will force the RSTO pin high. Further accesses to the device must use this 7-bit address. 0 RSVD 0 01h R STATUS 7:5 RSVD 000 4 TF1N 0 Termination Fault for SDI1. 0: No Termination Fault Detected. 1: Termination Fault Detected. 3 TF1P 0 Termination Fault for SDI1.
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LMH0307 www.ti.com SNLS286I – APRIL 2008 – REVISED APRIL 2013 Table 1. SMBus Registers (continued) Address R/W Name 03h R/W DIRECTION 04h R/W OUTPUT0 Bits Field Default Description 7 HDTF0ThreshLSB 1 Least Significant Bit for HDTF0Thresh detection threshold. Combines with HDTF0Thresh bits in register 04h. 6 SDTF0ThreshLSB 1 Least Significant Bit for SDTF0Thresh detection threshold. Combines with SDTF0Thresh bits in register 05h. 5 RSVD 0 Reserved as 0. Always write 0 to this bit.
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LMH0307 SNLS286I – APRIL 2008 – REVISED APRIL 2013 www.ti.com Table 1. SMBus Registers (continued) Address R/W Name 05h R/W OUTPUT0CTRL 06h 07h 14 R/W R/W OUTPUT1 OUTPUT1CTRL Bits Field Default 7 RSVD 0 Description Reserved as 0. Always write 0 to this bit. 6 FLOSOF 0 Force LOS to always OFF in regard to its effect on the output signal. This forces the device into either the mute or “add offset” state. The LOS bit in register 01h still reflects the correct state of LOS.
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LMH0307 www.ti.com SNLS286I – APRIL 2008 – REVISED APRIL 2013 Table 1. SMBus Registers (continued) Address R/W Name Bits Field 08h R/W TEST 7:5 CMPCMD 4:0 09h 0Ah 0Bh 0Ch 0Dh R R R R R REV TF0PCOUNT TF0NCOUNT TF1PCOUNT TF1NCOUNT Default Description 000 Compare command. Determines whether the peak value or the current value of the Termination Fault counters is read in registers 0Ah-0Dh. 000: Resets compare value to 00; registers 0Ah-0Dh all show current counter values.
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LMH0307 SNLS286I – APRIL 2008 – REVISED APRIL 2013 www.ti.com REVISION HISTORY Changes from Revision H (April 2013) to Revision I • 16 Page Changed layout of National Data Sheet to TI format ..........................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 15-Apr-2013 Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties.
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PACKAGE MATERIALS INFORMATION www.ti.com 24-Apr-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing LMH0307GR/NOPB csBGA NYA 25 LMH0307GRE/NOPB csBGA NYA LMH0307GRX/NOPB csBGA NYA LMH0307SQ/NOPB WQFN LMH0307SQE/NOPB LMH0307SQX/NOPB SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 1000 178.0 12.4 3.3 3.3 1.6 8.0 12.0 Q1 25 250 178.0 12.4 3.3 3.3 1.6 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 24-Apr-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LMH0307GR/NOPB csBGA NYA 25 1000 210.0 185.0 35.0 LMH0307GRE/NOPB csBGA NYA 25 250 210.0 185.0 35.0 LMH0307GRX/NOPB csBGA NYA 25 3500 367.0 367.0 35.0 LMH0307SQ/NOPB WQFN RUM 16 1000 213.0 191.0 55.0 LMH0307SQE/NOPB WQFN RUM 16 250 213.0 191.0 55.0 LMH0307SQX/NOPB WQFN RUM 16 4500 367.0 367.
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MECHANICAL DATA NYA0025A GRA25A (Rev A) www.ti.
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MECHANICAL DATA RUM0016A SQB16A (Rev A) www.ti.
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