PT6991

DESCRIPTION The PT6991 is designed to integrate the LED driver, key-scan matrix, infrared (IR) remote control decoding and into one integrated solution. All functions are programmable using I2C interface. In standby operation, the PT6991 provides the standby power management to the chipset for low power consumption. The PT6991 is housed in 32-pin SOP package. Pin assignments and application circuit are optimized for easy PCB layout and cost saving advantages. APPLICATIONS VCR DVD recorder Home theater Set-top box and other application that require a compact, integrated solution HTiB (Home theater in a box) Personal video recorders (PVRs) BLOCK DIAGRAM IR_DATA_IN READY Remote control Decoder PT6991 Front Panel LED Control/Driver Power with Standby Management FEATURES IC front panel LED controller driver Standby power management to the host 5.0V (VDD) supply and 3.3V interface for the IC IR remote control decoder (Philips, NEC, Thomson, Sony, Matsushita) Multiple display modes ( 10 segments and 6 digits to 12 segments and 4 digits ) External resistors necessary for all logic outputs (N-CH. Open drain) Key scanning (up to 10 x 1 matrix = 10 keys) I2C serial interface (SCL, SDA) communication protocol Programmable hotkeys for IR remote control command Programmable hotkeys for KEYSCAN command Low power consumption in standby mode Dimming circuit (8 steps) Available in SOP-32 package STBY IRQ_N VDD VSS (5.0V or 3.3V) (0V) SDA SCL VDD RS...