 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
WM8750LEFL/R 数据表(PDF) 1 Page - Wolfson Microelectronics plc |
|
|
|||||||||||||||||||||||||||||
WM8750LEFL/R 数据表(HTML) 1 Page - Wolfson Microelectronics plc |
|
|
1 / 56 page  WM8750L Stereo CODEC for Portable Audio Applications WOLFSON MICROELECTRONICS plc www.wolfsonmicro.com Product Preview, May 2003, Rev 1.77 Copyright 2003 Wolfson Microelectronics plc DESCRIPTION The WM8750L is a low power, high quality stereo codec designed for portable digital audio applications. The device integrates complete interfaces to stereo or mono microphones and a stereo headphone. External component requirements are drastically reduced as no separate microphone or headphone amplifiers are required. Advanced on-chip digital signal processing performs graphic equaliser, 3-D sound enhancement and automatic level control for the microphone or line input. The WM8750L can operate as a master or a slave, with various master clock frequencies including 12 or 24MHz for USB devices, or standard 256f s rates like 12.288MHz and 24.576MHz. Different audio sample rates such as 96kHz, 48kHz, 44.1kHz are generated directly from the master clock without the need for an external PLL. The WM8750L operates at supply voltages down to 1.8V, although the digital core can operate at voltages down to 1.42V to save power, and the maximum for all supplies is 3.6 Volts. Different sections of the chip can also be powered down under software control. The WM8750L is supplied in a very small and thin 5x5mm QFN package, ideal for use in hand-held and portable systems. FEATURES • DAC SNR 98dB (‘A’ weighted), THD -95B at 48kHz, 3.3V • ADC SNR 95dB (‘A’ weighted), THD -90dB at 48kHz, 3.3V • Complete Stereo / Mono Microphone Interface - Programmable ALC / Noise Gate • On-chip 400mW BTL Speaker Driver (mono) • On-chip Headphone Driver - >40mW output power on 16 Ω / 3.3V - THD –80dB at 20mW, SNR 90dB with 16 Ω load - No DC blocking capacitors required (capless mode) • Separately mixed mono output • Digital Graphic Equaliser • Low Power - 7mW stereo playback (1.8V / 1.5V supplies) - 14mW record & playback (1.8V / 1.5V supplies) • Low Supply Voltages - Analogue 1.8V to 3.6V - Digital core: 1.42V to 3.6V - Digital I/O: 1.8V to 3.6V • 256fs / 384fs or USB master clock rates: 12MHz, 24MHz • Audio sample rates: 8, 11.025, 16, 22.05, 24, 32, 44.1, 48, 88.2, 96kHz generated internally from master clock • 5x5x0.9mm QFN package APPLICATIONS • MP3 Player / Recorder • AAC/WMA/Multi-Format Player / Recorder • Minidisc Player / Recorder • Portable Digital Music Systems BLOCK DIAGRAM LINSEL ANALOGUE MONO MIX CONTROL INTERFACE MICBIAS Å WM8750L DCVDD DBVDD DGND LMIXSEL DAC ROUT1VOL LOUT1VOL MONOVOL LOUT1 ROUT1 MONOOUT (phone TX) LOUT2 ROUT2 50K 50K HPVDD HPGND DAC AUDIO INTERFACE DIGITAL FILTERS VOLUME DIGITAL MONO MIX 3D ENHANCE ADC ADC DIGITAL FILTERS GRAPHIC EQUALISER BASS BOOST CLOCK CIRCUITRY LINPUT3 LINPUT2 LINPUT1 LI2LO RI2LO LI2RO RI2RO LI2MO RI2MO LD2LO RD2LO LD2MO RD2MO LD2RO RD2RO LEFT MIXER RIGHT MIXER MONO MIXER ROUT2VOL LOUT2VOL -1 ROUT2 INV OUT3 VREF ROUT1 MONOOUT -1 L - (-R) = L+R PGA + MIC BOOST M U X M U X DIFF. INPUT L1-R1 OR L2-R2 DC MEASUREMENT RINSEL RMIXSEL RINPUT3/ HPDETECT RINPUT2 RINPUT1 PGA + MIC BOOST M U X M U X DC MEASUREMENT M U X OUT3SW |
类似零件编号 - WM8750LEFL/R |
|
类似说明 - WM8750LEFL/R |
|
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
