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參數(shù)資料
| 型號(hào)： | WM8751LEFL |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | STEREO DAC FOR PORTABLE AUDIO APPLICATIONS |
| 中文描述： | 立體聲DAC的便攜式音頻應(yīng)用 |
| 文件頁(yè)數(shù)： | 1/41頁(yè) |
| 文件大小： | 354K |
| 代理商： | WM8751LEFL |
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WM8751L
STEREO DAC FOR PORTABLE AUDIO APPLICATIONS
WOLFSON MICROELECTRONICS PLC
www.wolfsonmicro.com
Product Preview, May 2003, Rev 1.42
Copyright
2003 Wolfson Microelectronics Ltd.
DESCRIPTION
The WM8751L is a low power, high quality stereo DAC with
integrated headphone and loudspeaker amplifiers, designed
to reduce external component requirements in portable digital
audio applications.
The on-chip headphone amplifiers can deliver 40mW into a
16
load.
Advanced
on-chip
performs bass and treble tone control.
digital
signal
processing
The WM8751L 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 WM8751L operates on supply voltages from 1.8V up to
3.6V, although the digital core can operate on a separate
supply down to 1.42V, saving power. Different sections of the
chip can also be powered down under software control.
The WM8751L is supplied in a very small and thin 5x5mm
QFN package, ideal for use in hand-held and portable
systems.
FEATURES
DAC SNR 98dB, THD -95dB (‘A’ weighted @ 48kHz, 3.3V)
On-chip 400mW BTL Speaker Driver (mono)
On-chip Headphone Driver
°
40mW output power on 16
/ 3.3V
°
THD –80dB at 20mW, SNR 90dB with 16
load
Stereo and Mono Line-in mix into DAC output
Separately Mixed Stereo and Mono Outputs
Digital Tone Control and Bass Boost
Low Power
Low Supply Voltages
°
Analogue 1.8V to 3.6V
°
Digital core: 1.42V to 3.6V
°
Digital I/O: 1.42V to 3.6V
256fs / 384fs or USB master clock rates: 12MHz, 24MHz
Audio sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1,
48, 88.2, 96kHz generated internally from master clock
32-pin QFN package, 5x5x0.9mm size, 0.5mm lead pitch
APPLICATIONS
Digital Audio Player
MP3 Phone
Minidisc Player
BLOCK DIAGRAM
DAC
LI2LO
MI2LO
MI2RO
RI2RO
LI2MO
RI2MO
LD2LO
RD2LO
LD2MO
RD2MO
LD2RO
RD2RO
LEFT
MIXER
RIGHT
MIXER
MONO
MIXER
HPDETECT
DCVDD
DBVDD
DGND
DIGITAL
FILTERS
TONE
CONTROL
DIGITAL
AUDIO
INTERFACE
BCLK
DACDAT
DACLRC
V
A
A
V
50K
50K
W
WM8751L
V
L
L
DAC
CONTROL
INTERFACE
CSB
SDIN
SCLK
MODE
ROUT1VOL
LOUT1VOL
MONOVOL
LOUT1
ROUT1
MONOOUT
LOUT2
ROUT2
-1
HPVDD
HPGND
ROUT2
INV
Loudspeaker
L - (-R)
= L+R
ROUT2VOL
LOUT2VOL
OUT3
VREF
MONOOUT
M
U
X
ROUT1
VREF
-1
M
M
DIFF. IN
MCLK
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PDF描述 |
|---|---|
| WM8751L | 9V-I BLK BOX (3.25X5.624X1.5) |
| WM8753LGEF | HI FI AND TELEPHONY DUAL CODEC |
| WM8753LGEFL | HI FI AND TELEPHONY DUAL CODEC |
| WM8753L | HI FI AND TELEPHONY DUAL CODEC |
| WM8753 | 9V-I GRY BOX (3.25X5.624X1.5) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| WM8751LSEFL | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Stereo DAC with H/P Spr RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類(lèi)型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| WM8751LSEFL/R | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC STR DAC w/H/P SPR 32-pin RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類(lèi)型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| WM8751LSEFR | 制造商:WOLFSON 制造商全稱(chēng):WOLFSON 功能描述:STEREO DAC FOR PORTABLE AUDIO APPLICATIONS |
| WM8753 | 制造商:WOLFSON 制造商全稱(chēng):WOLFSON 功能描述:HI FI AND TELEPHONY DUAL CODEC |
| WM8753_05 | 制造商:WOLFSON 制造商全稱(chēng):WOLFSON 功能描述:Hi-Fi and Telephony Dual CODEC |
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