Datasheet > WM8351CGEB/V

WM8351CGEB/V

更新时间： 2024-02-17 18:25:20

品牌	Logo	应用领域
欧胜 - WOLFSON		解码器编解码器
页数	文件大小	规格书
330页	3683K
描述
Wolfson AudioPlusâ¢ Stereo CODEC with Power Management

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WM8351CGEB/V 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	7 X 7 MM, 0.94 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, PLASTIC, MO-195, BGA-129	Reach Compliance Code：	compliant
HTS代码：	8542.39.00.01	风险等级：	5.82
压伸定律：	A/MU-LAW	滤波器：	YES
JESD-30 代码：	S-PBGA-B129	长度：	7 mm
功能数量：	1	端子数量：	129
工作模式：	SYNCHRONOUS	最高工作温度：	85 °C
最低工作温度：	-25 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TFBGA	封装形状：	SQUARE
封装形式：	GRID ARRAY, THIN PROFILE, FINE PITCH	座面最大高度：	1.05 mm
标称供电电压：	1.8 V	表面贴装：	YES
技术：	CMOS	电信集成电路类型：	PCM CODEC
温度等级：	OTHER	端子形式：	BALL
端子节距：	0.5 mm	端子位置：	BOTTOM
宽度：	7 mm	Base Number Matches：	1

WM8351CGEB/V 数据手册

WM8351

Wolfson AudioPlus™ Stereo CODEC with Power Management

DESCRIPTION

FEATURES

Stereo Hi-Fi CODEC

The WM8351 is an integrated audio and power management

subsystem which provides a cost effective, single-chip solution

for portable audio and multimedia systems.



DAC SNR 95dB (‘A’ weighted @ 48kHz), THD –81dB

ADC SNR 95dB (‘A’ weighted @ 48kHz), THD –83dB

40mW on-chip headphone driver with ‘capless’ option

16Ω headphone load: THD -72dB, Po = 20mW

The integrated audio CODEC provides all the necessary

functions for high-quality stereo recording and playback.

Programmable on-chip amplifiers allow for the direct

connection of headphones and microphones with a minimum

2 differential microphone inputs with low-noise bias voltage

and programmable preamps

of external components.

A programmable low-noise bias



Programmable high-pass filter for ADC

Microphone and Headphone detection

voltage is available to feed one or more electret microphones.

Additional audio features include programmable high-pass

filter in the ADC input path.

Auxiliary inputs for analogue signals

Sample rates: 8, 11.025, 16, 22.05, 24, 32, 44.1 or 48kHz

The WM8351 includes four programmable DC-DC converters,

four low-dropout (LDO) regulators and a current limit switch to

generate suitable supply voltages for each part of the system,

including the integrated audio CODEC as well as off-chip

components such as a digital core and I/O supplies, and LED

lighting. An additional on-chip regulator maintains the backup

power for always-on functions. The WM8351 can be powered

by a lithium battery, by a wall adaptor or USB.

System Control



Support for 2-wire or 3-/4-wire Control Interface

Handles power sequencing, reset signals and fault

conditions



Autonomous power source selection (battery, wall adaptor

or USB bus)

Total current drawn from USB bus is limited to comply with

USB 2.0 standard and USB OTG supplement

An on-chip battery charger supports both trickle charging and

fast (constant current, constant voltage) charging of single-cell

lithium batteries. The charge current, termination voltage, and

charger time-out are programmable to suit different types of

batteries.

Supply Generation



1 x DC-DC Buck Converter (0.85V - 3.4V, Up to 1A)

2 x DC-DC Buck Converters (0.85V - 3.4V, Up to 500mA)

1 x DC-DC Boost Converter (5V - 20V, 40 to 200mA)

4 x LDO voltage regulators (0.9V - 3.3V, 150mA)

Internal power management circuitry controls the start-up and

shutdown sequencing of clocks and supply voltages. It also

detects and handles conditions such as under-voltage,

extreme temperatures, and deeply discharged or defective

batteries, with a minimum of software involvement.

LED Drivers



Programmable constant-current sink, suitable for screen

backlight or white LED photo flash



3 open-drain outputs for RGB LEDs

A programmable constant-current sink is available for driving

LED strings, e.g. for display backlights or photo-flash

applications, in a highly power-efficient way. Additional RGB

LEDs can be driven through GPIO pins.

Battery Charger



Single-cell Li-Ion / Li-Pol battery charger

Thermal protection for charge control; temperature

monitoring available for thermal regulation

The WM8351 includes a 32.768kHz crystal oscillator, an

internal RC oscillator, a real-time clock (RTC) and an alarm

function capable of waking up the system. Internal circuitry can

generate all clock signals required to start up the device.



LED outputs to indicate charge status and fault conditions

Additional Features



“Always on” RTC with wake-up alarm

Watchdog timer

The master clock for the audio CODEC can be input directly,

or may be generated internally using an integrated, low power

Frequency Locked Loop (FLL).

Up to 13 configurable GPIO pins

On-chip crystal oscillator and internal RC oscillator

Low power FLL supporting wide range of input clocks

7x7mm, 129 BGA package, 0.5mm ball pitch

To extend battery life, fine-grained power management

enables each function in the WM8351 to be independently

powered down through the control interface. The WM8351

forms part of the Wolfson AudioPlus^TMseries of audio and

power management solutions.

APPLICATIONS



Portable Audio and Media players

Portable Navigation Devices

Portable systems powered by single-cell lithium batteries

Production Data, April 2012, Rev 4.5

WOLFSON MICROELECTRONICS plc

To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews

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与WM8351CGEB/V相关器件

型号	品牌	获取价格	描述	数据表
WM8352	WOLFSON	获取价格	Wolfson AudioPlusâ¢ Stereo CODEC with Power
WM8501	WOLFSON	获取价格	24-bit 192kHz Stereo DAC with 1.7Vrms Line Driver
WM8501_09	WOLFSON	获取价格	24-bit 192kHz Stereo DAC with 1.7Vrms Line Driver
WM8501CGED	CIRRUS	获取价格	Consumer Circuit, CMOS, PDSO14, LEAD FREE, MS-012, SOIC-14
WM8501CGED/R	CIRRUS	获取价格	Consumer Circuit, CMOS, PDSO14, LEAD FREE, MS-012, SOIC-14
WM8501GED	WOLFSON	获取价格	24-bit 192kHz Stereo DAC with 1.7Vrms Line Driver
WM8501GED/RV	WOLFSON	获取价格	24-bit 192kHz Stereo DAC with 1.7Vrms Line Driver
WM8501GED/V	WOLFSON	获取价格	24-bit 192kHz Stereo DAC with 1.7Vrms Line Driver
WM8501GERV	WOLFSON	获取价格	24-bit 192kHz Stereo DAC with 1.7Vrms Line Driver
WM8501GEV	WOLFSON	获取价格	24-bit 192kHz Stereo DAC with 1.7Vrms Line Driver

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