DataSheet.es    


PDF WM8988LGECN Data sheet ( Hoja de datos )

Número de pieza WM8988LGECN
Descripción Stereo CODEC
Fabricantes Wolfson Microelectronics 
Logotipo Wolfson Microelectronics Logotipo



Hay una vista previa y un enlace de descarga de WM8988LGECN (archivo pdf) en la parte inferior de esta página.


Total 58 Páginas

No Preview Available ! WM8988LGECN Hoja de datos, Descripción, Manual

w
WM8988
Stereo CODEC for Portable Audio Applications
DESCRIPTION
The WM8988 is a low power, high quality stereo CODEC
designed for portable digital audio applications.
The device integrates complete interfaces to 2 stereo
headphone or line out ports. External component
requirements are drastically reduced as no separate
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 WM8988 can operate as a master or a slave, with
various master clock frequencies including 12 or 24MHz for
USB devices, or standard 256fs 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 WM8988 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 WM8988 is supplied in a very small and thin 4x4mm
COL package, ideal for use in hand-held and portable
systems.
FEATURES
DAC SNR 100dB (‘A’ weighted), THD –90dB at 48kHz, 3.3V
ADC SNR 93dB (‘A’ weighted), THD -81dB at 48kHz, 3.3V
Programmable ALC / Noise Gate
2x On-chip Headphone Drivers
- >40mW output power on 16/ 3.3V
- THD –80dB at 20mW, SNR 90dB with 16load
Digital Graphic Equaliser
Low Power
- 7mW stereo playback (1.8V / 1.5V supplies)
- 14mW record and 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
4x4mm COL package
APPLICATIONS
Portable Multimedia players
Multimedia handsets
Handheld gaming
BLOCK DIAGRAM
DGND
DCVDD
DBVDD
HPGND HPVDD
LINPUT1
LINPUT2
RINPUT2
RINPUT1
DIFF.
INPUT
L1-R1 OR
L2-R2
M LMIXSEL
U
X
DC MEASUREMENT
M PGA
U + MIC
X BOOST
LINSEL
ANALOGUE
MONO MIX
RINSEL
M PGA
U + MIC
X BOOST
DC MEASUREMENT
M
U
X RMIXSEL
50K 50K
W
WM8988
ADC
ADC
DIGITAL
FILTERS
VOLUME
DIGITAL
MONO MIX
DIGITAL
FILTERS
GRAPHIC
EQUALISER
BASS
BOOST
DAC
DAC
LEFT
LD2LO MIXER
LI2LO
RD2LO
RI2LO
RIGHT
LD2RO MIXER
LI2RO
RD2RO
RI2RO
AUDIO
INTERFACE
CLOCK
CIRCUITRY
CONTROL
INTERFACE
LOUT1
(headphone / line output
LOUT1VOL
HPCOM
ROUT1
ROUT1VOL (headphone / line output
LOUT2
LOUT2VOL (headphone / line output
LCOM
ROUT2
(headphone / line output
ROUT2VOL
WOLFSON MICROELECTRONICS plc
Production Data, October 2013, Rev 4.1
Copyright 2013 Wolfson Microelectronics plc

1 page




WM8988LGECN pdf
Production Data
WM8988
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 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.
Wolfson tests its package types according to IPC/JEDEC J-STD-020 for Moisture Sensitivity to determine acceptable storage
conditions prior to surface mount assembly. These levels are:
MSL1 = unlimited floor life at <30C / 85% Relative Humidity. Not normally stored in moisture barrier bag.
MSL2 = out of bag storage for 1 year at <30C / 60% Relative Humidity. Supplied in moisture barrier bag.
MSL3 = out of bag storage for 168 hours at <30C / 60% Relative Humidity. Supplied in moisture barrier bag.
The Moisture Sensitivity Level for each package type is specified in Ordering Information.
CONDITION
Supply voltages
Voltage range digital inputs
Voltage range analogue inputs
Operating temperature range, TA
Storage temperature after soldering
MIN
-0.3V
DGND -0.3V
AGND -0.3V
-25C
-65C
Notes
1. Analogue and digital grounds must always be within 0.3V of each other.
2. All digital and analogue supplies are completely independent from each other.
3. DCVDD must be less than or equal to AVDD and DBVDD.
MAX
+4.5V
DBVDD +0.3V
AVDD +0.3V
+85C
+150C
RECOMMENDED OPERATION CONDITIONS
PARAMETER
Digital supply range (Core)
Digital supply range (Buffer)
Analogue supplies range
Ground
SYMBOL
MIN
TYP
MAX
UNIT
DCVDD
1.42
3.6 V
DBVDD
1.7
3.6 V
AVDD, HPVDD
1.8
3.6 V
DGND,AGND, HPGND
0
V
w
PD, Rev 4.1, October 2013
5

5 Page





WM8988LGECN arduino
Production Data
SIGNAL TIMING REQUIREMENTS
SYSTEM CLOCK TIMING
MCLK
tMCLKL
tMCLKH
tMCLKY
WM8988
Figure 1 System Clock Timing Requirements
Test Conditions
CLKDIV2=0, DCVDD = 1.42V, DBVDD = 3.3V, DGND = 0V, TA = +25oC, Slave Mode fs = 48kHz, MCLK = 384fs, 24-bit data,
unless otherwise stated.
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
System Clock Timing Information
MCLK System clock pulse width high
MCLK System clock pulse width low
MCLK System clock cycle time
MCLK duty cycle
TMCLKL
TMCLKH
TMCLKY
TMCLKDS
21
21
54
60:40
40:60
ns
ns
ns
Test Conditions
CLKDIV2=1, DCVDD = 1.42V, DBVDD = 3.3V, DGND = 0V, TA = +25oC, Slave Mode fs = 48kHz, MCLK = 384fs, 24-bit data,
unless otherwise stated.
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
System Clock Timing Information
MCLK System clock pulse width high
MCLK System clock pulse width low
MCLK System clock cycle time
TMCLKL
TMCLKH
TMCLKY
10
10
27
ns
ns
ns
AUDIO INTERFACE TIMING – MASTER MODE
BCLK
(Output)
LRC
(Output)
ADCDAT
DACDAT
t
DST
t
DHT
Figure 2 Digital Audio Data Timing – Master Mode
t
DL
t
DDA
w
PD, Rev 4.1, October 2013
11

11 Page







PáginasTotal 58 Páginas
PDF Descargar[ Datasheet WM8988LGECN.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
WM8988LGECNStereo CODECWolfson Microelectronics
Wolfson Microelectronics

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar