Overview
The LMH0340SQ/NOPB, produced by Texas Instruments, is a high-speed serializer designed for serial digital interface (SDI) applications. This device is part of the FPGA-Attach SER/DES family and is compliant with various industry standards including SMPTE 424M, SMPTE 292M, SMPTE 259M-C, and DVB-ASI. It features a compact 48-pin WQFN package and operates within an industrial temperature range of -40°C to 85°C.
The LMH0340 integrates a TXCLK PLL to clean clock noise and includes an SMBus configuration interface for easy setup and control. It supports multiple data rates and is suitable for a variety of video processing applications.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage (VDD3V3-GND) | 3.135 | 3.3 | 3.465 | V |
| Supply Voltage (VDD2V5-GND) | 2.375 | 2.5 | 2.625 | V |
| Output Data Rate | 270 | - | 2970 | Mbps |
| Output Jitter (HD, 3G) | - | 30 | - | ps |
| Power Dissipation | - | 440 | 545 | mW |
| Operating Temperature | -40 | - | 85 | °C |
| Package Type | - | - | 48-pin WQFN | - |
Key Features
- Compliant with SMPTE 424M, SMPTE 292M, SMPTE 259M-C, and DVB-ASI standards
- Integrated TXCLK PLL for clock noise cleaning
- 3.3V SMBus configuration interface
- Small 48-pin WQFN package
- Industrial temperature range: -40°C to 85°C
- LVDS input interface with internal 100Ω termination
- CML output driver for serial digital interface
- Power down mode for reduced power consumption
Applications
- Video Cameras
- Digital Video Recorders (DVRs)
- Video Switchers
- Video Editing Systems
Q & A
- What are the supported standards for the LMH0340?
The LMH0340 is compliant with SMPTE 424M, SMPTE 292M, SMPTE 259M-C, and DVB-ASI standards.
- What is the operating temperature range of the LMH0340?
The operating temperature range is -40°C to 85°C.
- What is the typical power dissipation of the LMH0340?
The typical power dissipation is 440 mW.
- What type of package does the LMH0340 come in?
The LMH0340 comes in a 48-pin WQFN package.
- Does the LMH0340 have built-in ESD protection?
The device has limited built-in ESD protection and requires careful handling to prevent electrostatic damage.
- How does the SMBus interface work on the LMH0340?
The SMBus interface allows for configuration and control using a 3.3V SMBus configuration interface.
- What are the typical output jitter values for the LMH0340?
The typical output jitter is 30 ps for HD at 3Gbps.
- Can the LMH0340 be powered down to save energy?
Yes, the device can be powered down by writing specific values to its registers to disable input buffers and power down the output buffer.
- What is the maximum junction temperature for the LMH0340?
The maximum junction temperature is +150°C.
- What is the recommended operating supply voltage for VDD3V3 and VDD2V5?
The recommended operating supply voltages are 3.135V to 3.465V for VDD3V3 and 2.375V to 2.625V for VDD2V5.
