Datasheet > AS3654

AS3654

更新时间： 2024-02-18 15:43:05

品牌	Logo	应用领域
艾迈斯 - AMSCO		放大器
页数	文件大小	规格书
3页	164K
描述
Power Management Unit with 18 Bit Audio DAC + Headphone Amplifier, DCDC Charger, 3 Buck DCDCs, 3 Boost DCDCs, 5 LDOs, Current Sinks, ADC

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AS3654 技术参数

是否无铅：	不含铅	生命周期：	Active
Reach Compliance Code：	unknown	风险等级：	5.7
Base Number Matches：	1

AS3654 数据手册

AS3654

austriamicrosystems

Product Brief, Confidential

AS3654

Power Management Unit with 18 Bit Audio DAC + Headphone

Amplifier, DCDC Charger, 3 Buck DCDCs, 3 Boost DCDCs, 5 LDOs,

Current Sinks, ADC

1 General Description

−

40µs conversation time

The AS3654 is a highly integrated solution for

power supply generation and monitoring, battery

management including charging. It is controlled via

a serial control interface and integrates all

necessary system specific functions such as clock,

reset and interrupt generation, voltage and

temperature monitoring.

ꢀ

Battery Management

−

Full featured chemistry independent step

down charger with included Gas Gauge and

Current limitation

−

0.2 Ω Battery switch for start-up during

trickle charging

Integrated USB charger up to 400mA

2 Key Features

Power Management Features

−

Wide Battery Supply Range 3.0…5.5V

On-Chip Bandgap Tuning for High

Accuracy ( 1%)

ꢀ

System Control

−

Serial Control Interface

On/Off Control Module

−

Current protection

Thermal Protection with internal

temperature sensor

Reset Generation for system controller

Programmable Interrupt Controller

Watchdog

Low power off mode (9µA; 2.5V LDO on)

Audio

−

18 Bit Audio DAC

ꢀ

Supply Voltage Generation

1 RF Programmable Low Noise LDOs

(400mA)

Two Digital Audio Inputs (I2S interface)

2.9V low Noise LDO for Audio DAC

Headphone Amplifier Output with GND

separation

−

1 RF Programmable Low Noise LDOs

(150mA)2 RF Programmable Low Noise

LDOs (150mA)

−

GND Buffer for Headphone Amplifier

Line/ Headphone output with GND

separation

−

2 Programmable Digital Low Power LDOs

(200mA)

2 General Purpose PWM DC/DC step up

converter with two programmable current

sinks (e.g. for white led)

ꢀ

Programmable System clock

1.6 MHz to 2.3 MHz with 100 kHz steps

−

3 General Purpose high efficiency DC/DC

step down converter

Package

BGA100 9x9mm, 0.8mm pitch

−

1 Low noise charge pump with 5V output

voltage

1 Ultra Low Power 2.5V LDO (always on)

3 Application

ꢀ

Current sinks

−

4 programmable(6-bit) from 0.625 to 40mA

ꢀ

Power Management Unit

optional useable as GPIOs

3 programmable high voltage (15V) (6-bit)

from 0.625 to 40mA

1 Cell Li+ or 3 Cell NiMH powered devices

Car battery powered systems with and without

internal battery

internal PWM generator

10-bit Successive Approximation ADC

www.austriamicrosystems.com (ptr)

Revision 1.2.1 / 20060613

1 - 3

12 3

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