品牌	nxp	型號	ucb1400be
封裝	qfp	批號	04+
類型	音頻ic

ucb1400 audio codec with touch screen controller and power management monitor rev. 02 — 21 june 2002 product data 1. general description the ucb1400 is a stereo audio codec equipped with touch screen and power management interfaces. it integrates an ac ’97 rev. 2.1 interface for communication to an ac link host controller such as the intel xscale? processor. the stereo audio codec inputs connect directly to a microphone or line level sources such as a cd player. the stereo audio codec outputs at line level and can drive a headphone directly. the touch screen interface connects directly to a 4-wire resistive touch screen. a built-in 10-bit analog-to-digital converter provides readout of touch screen and power management parameters. ten general-purpose i/o pins provide programmable inputs and/or outputs to the system. 2. features a73 48-pin lqfp surface mount package and low external component count for minimal pcb space requirement a73 integrated ac ’97 rev. 2.1 interface a73 20-bit stereo audio codec supporting programmable sample rates, and input/output gain control a78 stereo line input and mono microphone input a78 stereo line/headphone output with bass/treble control a78 headphone driver with short circuit protection and virtual ground for dc coupling a73 4-wire resistive touch screen interface circuit supporting position, pressure and plate resistance measurements a73 10-bit successive approximation adc with internal track-and-hold circuit and analog multiplexer for touch screen readout and monitoring of four external high voltage (7.5 v) sources a73 ten general purpose input/output pins a73 3.3 v supply voltage and built-in power saving modes for portable and battery powered applications. 3. applications a73 smart mobile phones a73 handheld pcs a73 palm-top pcs a73 personal intelligent communicators (pic) a73 personal digital assistants (pda).