General Description

The ICS1531 is a high-performance, cost-effective, 3-channel, 8-bit analog-to-digital converter with an integrated line-locked clock generator. It is part of a family of chips intended for high-resolution video applications that use analog inputs, such as LCD monitors, LCD projectors, plasma displays, and projection TVs. Using ICSs low-voltage CMOS mixed-signal technology, the ICS1531 is an effective data-capture solution for resolutions from VGA to UXGA.

Features

• 3-channel 8-bit analog-to-digital conversion up to 165 MHz

• Direct connection to analog input data (no external pre-amplifier circuit needed)

• Video amplifier: 500-MHz analog bandwidth, software-adjustable gain

• Dynamic Phase Adjust (DPA) for software-adjustable analog sample points

• Software selectable: One pixel per clock (for 24-bit pixels) or two pixels per clock (for a total of 48 bits)

• Internal clamp circuit. Very low jitter.

• Low-voltage TTL clock outputs, synchronized with digital pixel data outputs

• Independent software reset for PLLs and DPA

• Double-buffered PLL and DPA control registers

• Two additional PLLs with spread spectrum for memory and panel clock

• External/internal loop-filter selection with software

• Automatic Power-On Reset (POR) detection

• Uses 3.3 VDC. Digital inputs are 5-V tolerant.

• Industry-standard 2-wire serial bus interface speeds: low (100 kHz), high (400 kHz), or ultra (800 kHz)

• Lock detection available in hardware and software

• 144-pin low-profile quad flat pack (LQFP) package

Applications

• LCD displays, LCD projectors, plasma displays, and projection TVs