wm8761ged-v Wolfson Microelectronics plc, wm8761ged-v Datasheet
wm8761ged-v
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wm8761ged-v Summary of contents
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... Pin Compatible with WM8725 APPLICATIONS DVD Players Home Theatre Systems Digital TV Digital Set Top Boxes http://www.wolfsonmicro.com/enews/ WM8761 100dB SNR (‘A’ weighted @ 48kHz) -90dB THD 24-bit I S, 24-bit Right Justified or DSP Production Data, January 2009, Rev 4.3 Copyright 2009 Wolfson Microelectronics plc. ...
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WM8761 DESCRIPTION ............................................................................................................1 FEATURES..................................................................................................................1 APPLICATIONS ..........................................................................................................1 BLOCK DIAGRAM ......................................................................................................1 TABLE OF CONTENTS ..............................................................................................2 PIN CONFIGURATION................................................................................................3 ORDERING INFORMATION .......................................................................................3 PIN DESCRIPTION .....................................................................................................4 ABSOLUTE MAXIMUM RATINGS..............................................................................5 DC ELECTRICAL CHARACTERISTICS .....................................................................6 ELECTRICAL CHARACTERISTICS ...........................................................................6 TERMINOLOGY ................................................................................................................. 7 MASTER CLOCK TIMING .................................................................................................. 8 DIGITAL ...
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... PIN CONFIGURATION LRCIN 1 DIN 2 BCKIN 3 WM8761 NC 4 CAP 5 VOUTR 6 GND 7 ORDERING INFORMATION TEMPERATURE DEVICE RANGE o WM8761GED/V - WM8761GED/RV -40 to +85 C Note: Reel quantity = 3,000 w 14 MCLK 13 FORMAT 12 DEEMPH MUTE 9 VOUTL 8 VDD MOISTURE SENSITIVITY PACKAGE 14-lead SOIC (Pb-free) 14-lead SOIC ...
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WM8761 PIN DESCRIPTION PIN NAME 1 LRCIN Digital input 2 DIN Digital input 3 BCKIN Digital input connect 5 CAP Analogue output VOUTR Analogue output 6 7 GND Supply 8 VDD Supply 9 VOUTL Analogue output 10 ...
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WM8761 ABSOLUTE 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 ...
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WM8761 DC ELECTRICAL CHARACTERISTICS PARAMETER Supply range Ground Supply current Supply current Power down current (note 4) ELECTRICAL CHARACTERISTICS Test Conditions o VDD = 5V, GND = 0V + 48kHz, MCLK = 256fs unless otherwise ...
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WM8761 Test Conditions o VDD = 5V, GND = 0V + 48kHz, MCLK = 256fs unless otherwise stated. A PARAMETER Analogue Output Levels Output level Gain mismatch channel-to-channel Minimum resistance load Maximum capacitance load Output ...
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WM8761 MASTER CLOCK TIMING MCLK Figure 1 Master Clock Timing Requirements Test Conditions o VDD = 5V, GND = 0V + 48kHz, MCLK = 256fs unless otherwise stated. A PARAMETER System Clock Timing Information MCLK ...
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WM8761 POWER ON RESET (POR) The WM8761 has an internal power-on-reset (POR) circuit which is used to reset the digital logic into a default state after power up. A block diagram of the reset circuit is shown in Figure 3 ...
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WM8761 Figure 5 Generation of NPOR at Power-Off-Reset w Production Data PD, Rev 4.3, January 2009 10 ...
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WM8761 DEVICE DESCRIPTION GENERAL INTRODUCTION The WM8761 is a high performance DAC designed for digital consumer audio applications. The range of features make it ideally suited for use in DVD players, AV receivers and other consumer audio equipment. The WM8761 ...
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WM8761 Typically an external low pass filter circuit will be used to remove residual out of band noise characteristic of delta sigma converters. However, the advanced multi-bit DAC used in WM8761 produces far less out of band noise than single ...
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WM8761 LRCIN BCKIN DIN Figure 6 I RIGHT JUSTIFIED MODE The WM8761 supports word lengths of 24-bits in right justified mode. In right justified mode, the digital audio interface receives data on the DIN input. Audio Data is time multiplexed ...
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WM8761 LRCIN BCKIN DIN Figure 8 DSP ‘Late’ Mode Timing LRCIN BCKIN DIN Figure 9 DSP ‘Early’ Mode Timing AUDIO DATA SAMPLING RATES The master clock for WM8761 supports audio sampling rates from 128fs to 768fs, where fs is the ...
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WM8761 HARDWARE CONTROL MODES The WM8761 is hardware programmable providing the user with options to select input audio data format, de-emphasis and mute. MUTE AND AUTO MUTE OPERATION Pin 10 (MUTE) controls selection of MUTE directly, and can be used ...
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WM8761 A diagram showing how the various Mute modes interact is shown below in Figure 11. Figure 11 Selection Logic for MUTE Modes INPUT AUDIO FORMAT SELECTION FORMAT (pin 13) controls the data input format. Table 3 Input Audio Format ...
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WM8761 DIGITAL FILTER CHARACTERISTICS PARAMETER Passband Edge Passband Ripple Stopband Attenuation Table 6 Digital Filter Characteristics DAC FILTER RESPONSES 0 -20 -40 -60 -80 -100 -120 0 0.5 1 1.5 Frequency (Fs) Figure 12 DAC Digital Filter Frequency Response -44.1, ...
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WM8761 DIGITAL DE-EMPHASIS CHARACTERISTICS - Frequency (kHz) Figure 16 De-Emphasis Frequency Response (32kHz - Frequency (kHz) Figure 18 De-Emphasis Frequency Response (44.1kHz) ...
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WM8761 APPLICATIONS INFORMATION RECOMMENDED EXTERNAL COMPONENTS VDD + C 1 AGND Hardware Control Audio Serial Data I/F Notes: 1. C2, C5 should be positioned as close to the WM8761 as possible. 2. Capacitor types should be carefully chosen. Capacitors with ...
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WM8761 RECOMMENDED ANALOGUE LOW PASS FILTER 4.7k 10uF 1.8k 7.5K + 1.0nF 47k nd Figure 23 Recommended 2 Order Low Pass Filter An external low pass filter is recommended (see Figure 20) if the device is driving a wideband amplifier. ...
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WM8761 PACKAGE DRAWING D: 14 PIN SOIC 3.9mm Wide Body 0.10 (0.004) Dimensions Symbols (MM) MIN MAX A 1.35 A1 0.10 B 0.33 C 0.19 D 8.55 E 3.80 e 1.27 BSC H 5.80 h ...
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... WM8761 IMPORTANT NOTICE Wolfson Microelectronics plc (“Wolfson”) products and services are sold subject to Wolfson’s terms and conditions of sale, delivery and payment supplied at the time of order acknowledgement. Wolfson warrants performance of its products to the specifications in effect at the date of shipment. Wolfson reserves the right to make changes to its products and specifications or to discontinue any product or service without notice ...