ANALOG DEVICES AD9888 AD9886 AD9886KS-140 128MQFP Analog Flat Panel Interface

Description

ANALOG DEVICES AD9888 AD9886 AD9886KS-140 128MQFP Analog Flat Panel Interface

GENERAL DESCRIPTION

The AD9888 is a complete 8-bit, 170 MSPS, monolithic analog

interface optimized for capturing RGB graphics signals from

personal computers and workstations. Its 170 MSPS encode rate

capability and full-power analog bandwidth of 500 MHz supports

resolutions of up to 1600 × 1200 (UXGA) at 75 Hz.

For ease of design and to minimize cost, the AD9888 is a fully

integrated interface solution for flat panel displays. The AD9888

includes an analog interface that has a 170 MHz triple ADC with

an internal 1.25 V reference phase-locked loop (PLL) to generate a

pixel clock from HSYNC and COAST; midscale clamping; and

programmable gain, offset, and clamp controls. The user provides

only a 3.3 V power supply, analog input, and HSYNC and COAST

signals. Three-state CMOS outputs can be powered from 2.5 V

to 3.3 V.

The on-chip PLL of the AD9888 generates a pixel clock from the

HSYNC and COAST inputs. Pixel clock output frequencies

range from 10 MHz to 170 MHz. PLL clock jitter is typically

less than 450 ps p-p at 170 MSPS. When the COAST signal is

presented, the PLL maintains its output frequency in the absence of

HSYNC. A sampling phase adjustment is provided. Data, HSYNC,

and clock output phase relationships are maintained. The PLL

can be disabled, and an external clock input can be provided as

the pixel clock. The AD9888 also offers full sync processing for

composite sync and sync-on-green applications.

A CLAMP signal is generated internally or can be provided by the

user through the CLAMP input pin. This device is fully program-

mable via a 2-wire serial port.

Fabricated in an advanced CMOS process, the AD9888 is

provided in a space-saving, 128-lead, MQFP, surface-mount,

plastic package and is specified over the 0°C to 70°C temperature

range. The AD9888 is also available in a Pb-free package.

ANALOG DEVICES AD9888 AD9886 AD9886KS-140 128MQFP ist ein eingebetteter Prozessor mit einer maximalen Betriebsspannung von 2 V und einer minimalen Durchbruchspannung von 144 V. Dieses Produkt hat 144 Pins und gehört zur Marke MARUBUN. Ideal für Anwendungen in der Elektronik und Messtechnik, bietet es eine zuverlässige Leistung in integrierten Schaltungen für eingebettete Prozessoren und Steuerungen.