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WM8711, WM8711B, WM8711BLGEFL

Table of contents:
Info of WM8711
Info of WM8711B
Info of WM8711BLGEFL

WM8711, WM8711B, WM8711BLGEFL Selling Leads, Datasheet

MFG:WOLFSON Package Cooled:SSOP D/C:03+

WM8711, WM8711B, WM8711BLGEFL Datasheet download

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Part Number: WM8711

MFG: WOLFSON

Package Cooled: SSOP

D/C: 03+

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WM8711 General Description

The WM8711 is a low power stereo DAC with an integrated headphone driver. The WM8711 is designed specifically for portable MP3 audio and speech players. The WM8711 is also ideal for MD, CD machines and DAT players.

Stereo 24-bit multi-bit sigma delta DACs are used with oversampling digital interpolation filters. Digital audio input word lengths from 16-32 bits and sampling rates from 8KHz to 96KHz are supported.

Stereo audio outputs are buffered for driving headphones from a programmable volume control, line level outputs are also provided along with anti-thump mute and power up/down circuitry.

The device is controlled via a 2 or 3 wire serial interface. The interface provides access to all features including volume controls, mutes, de-emphasis and extensive power management facilities.

The device is available in a small 28- pin SSOP package. A USB mode is provided where all audio rates can be derived from a single 12MHz MCLK, saving on the need for a PLL or multiple crystals.

WM8711 Maximum Ratings

Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical Characteristics at the test conditions specified.

ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically susceptible to damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage of this device.

CONDITION	MIN	MAX
Digital supply voltage	-0.3V	+3.63V
Analogue supply voltage	-0.3V	+3.63V
Voltage range digital inputs	DGND -0.3V	DVDD +0.3V
Voltage range analogue inputs	AGND -0.3V	DVDD +0.3V
Master Clock Frequency (see Note 4)		40MHz
Operating temperature range, T_A	-10°C	+70°C
Storage temperature	-65°C	+150°C
Package body temperature (soldering 10 seconds)		+240°C
Package body temperature (soldering 2 minutes)		+183°C

Notes:
1. Analogue and digital grounds must always be within 0.3V of each other.
2. The digital supply core voltage (DCVDD) must always be less than or equal to the analogue supply voltage (AVDD) ordigital supply buffer voltage (DBVDD).
3. The digital supply buffer voltage (DBVDD) must always be less than or equal to the analogue supply voltage (AVDD).
4. When CLKIDIV2 = 1.

WM8711 Features

• Audio Performance
- 100dB SNR ('A' weighted @ 48kHz) DAC
- 1.42 3.6V Digital Supply Operation
- 2.7 3.6V Analogue Supply Operation
• DAC Sampling Frequency: 8KHz 96KHz
• 2 or 3-Wire MPU Serial Control Interface
• Programmable Audio Data Interface Modes
- I²S, Left, Right Justified or DSP
- 16/20/24/32 bit Word Lengths
- Master or Slave Clocking Mode
• Stereo Audio Outputs
• Output Volume and Mute Controls
• Highly Efficient Headphone Driver
• Playback Mode Power Consumption < 18mW
• 28-Pin SSOP Package

WM8711 Typical Application

• Portable MP3 Players
• CD and Minidisc Players

WM8711 Connection Diagram

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