UCB1400

更新时间： 2024-09-27 22:17:51

品牌	Logo	应用领域
恩智浦 - NXP		解码器编解码器监控控制器
页数	文件大小	规格书
63页	623K
描述
Audio codec with touch screen controller and power management monitor

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UCB1400 数据手册

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

■ 48-pin LQFP surface mount package and low external component count for

minimal PCB space requirement

■ Integrated AC ’97 Rev. 2.1 interface

■ 20-bit stereo audio codec supporting programmable sample rates, and

input/output gain control

◆ Stereo line input and mono microphone input

◆ Stereo line/headphone output with bass/treble control

◆ Headphone driver with short circuit protection and virtual ground for DC

coupling

■ 4-wire resistive touch screen interface circuit supporting position, pressure and

plate resistance measurements

■ 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

■ Ten general purpose input/output pins

■ 3.3 V supply voltage and built-in power saving modes for portable and battery

powered applications.

3. Applications

■ Smart mobile phones

■ Handheld PCs

■ Palm-top PCs

■ Personal Intelligent Communicators (PIC)

■ Personal Digital Assistants (PDA).

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