SAA4995WP中文资料飞利浦数据手册PDF规格书

GENERAL DESCRIPTION

The PAN-IC is an add-on IC to be used, for example, between analog-to-digital conversion and a serial (field) memory. The device performs the following tasks:

• Linear horizontal sample rate conversion in both zoom and compress direction, with a sample rate conversion factor between 0.5 and 2

• Dynamic sample rate conversion for panorama mode display of e.g. 4 : 3 material on a 16 : 9 display

• Dynamic sample rate conversion for amaronap mode display of e.g. 16 : 9 material on a 4 : 3 display.

The PAN-IC has the ability to increase the data rate from the ADC to a maximum of twice the data rate at the output. To achieve this a clock rate at twice the normal output clock rate is needed to write data to the memory. All actions to generate a lower data rate, produces disable cycles in Write Enable (WE).

FEATURES

• Horizontal sample rate conversion in both zoom and compress direction, with a sample rate conversion factor between 0.5 and 2 (in 384 steps)

• Dynamic sample rate conversion for panorama mode display e.g. 4 : 3 material on a 16 : 9 display

• Dynamic sample rate conversion for amaronap mode display of e.g. 16 : 9 material on a 4 : 3 display

• Operates with 1fh and 2fh

• Programmable via microcontroller SNERT (Synchronous No parity Eight bit Receive Transmit) bus.