ADI LT8500ITJ#PBF

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Overview

The LT8500IUHH is a pulse width modulation (PWM) generator with 48 independent channels. Each channel has an individually adjustable 12-bit (4096-step) PWM register and a 6-bit (64-step) ±50% correction register. All controls are programmable via a simple serial data interface. Three banks of 16-channels each can be configured such that they operate 120° out-of-phase with each other.

The LT8500IUHH features two diagnostic information flags: synchronization error and open LED. The flags are sent, with additional state information, on the serial data interface during status read back. The 50MHz cascadable serial data interface includes buffering and skew-balancing, making the chip suitable for PWM intensive applications such as large screen LCD dynamic backlighting and mono-, multi- and full-color LED displays. The LT8500IUHH is also ideally suited to control three LT3595A LED drivers.

Features

Applications

• Routers
• Ethernet switch/router
• PCI Express 2.0/3.0
• Broadcast video/audio timing
• Processor and FPGA clocking
• Any-frequency clock conversion
• MSAN/DSLAM/PON
• Fibre Channel, SAN
• Telecom line cards
• 1 GbE and 10 GbE