- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄2066 > AS3543-ECTP (ams)IC CODEC AUDIO FRONT END 68CTBGA PDF資料下載
參數(shù)資料
| 型號： | AS3543-ECTP |
| 廠商： | ams |
| 文件頁數(shù)： | 12/92頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CODEC AUDIO FRONT END 68CTBGA |
| 標準包裝： | 4,000 |
| 類型： | 音頻編解碼器 |
| 應用： | 便攜式音頻，電話 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 68-TFBGA |
| 供應商設備封裝： | 68-CTBGA（6x6） |
| 包裝： | 帶卷 (TR) |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁當前第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁
A S 3 5 4 3
H i g h E n d St e r e o A u d i o C o d e c w i t h S y s t e m P M U
www.austriamicrosystems.com
Revision 1.11
1 - 91
Data Sheet
1 General Description
The AS3543 is an ultra low power stereo audio codec
and is designed for Portable Digital Audio Applications.
It allows high-end quality playback with up to 100dBA
SNR and recording in FM quality. With one microphone
(including pre-amplifier and supply for an electret micro-
phone) and two line inputs, it allows connecting a variety
of audio inputs. The different audio signals can be mixed
via a 6-channel mixer and fed to either a headphone out-
put for 16 /32 headsets or a line output. Both outputs
have a ground noise cancellation to use it e.g. in car
docking stations. The audio outputs have also an auto
fading implemented which performs the fade-in, fade-
out as well as the transition between specific volume
levels automatically with an selectable timing.
Further the device offers advanced power management
functions. All necessary ICs and peripherals in a Digital
Audio Player are supplied by the AS3543. It features 2
DCDC converters for core and memory/periphery supply
as well as 4 LDOs. Both DCDC converter feature DVM
(dynamic voltage management) with an selectable tim-
ing for the voltage stepping. The different regulated sup-
ply voltages are programmable via the serial control
interface.
The step-up converter for the backlight can operate up
to 15V (with an external transistor even higher) in volt-
age and current control mode. An internal voltage pro-
tection is limiting the output voltage in the case of
external component failures. 2 high voltage current sinks
can be used to operate two, if needed also unbalanced,
LED strings. An automatic dimming function allows a
logarithmic on/off of the backlight with selectable timing.
AS3543 also contains a Li-Ion battery charger with con-
stant current, constant voltage and trickle charging. The
maximum charging current is 460mA. An integrated bat-
tery switch is separating the battery during charging or
whenever an external power supply is present. With this
switch it is also possible to operate with no or deeply dis-
charged batteries.
The AS3543 has an on-chip, phase locked loop (PLL)
which generates the needed internal CODEC master
clock. I2S Frame and shift-clock have to be applied from
the processor for playback and recording.
Further the AS3543 has an independent 32kHz real time
clock (RTC) on chip which allows a complete power
down of the system CPU while only consuming less than
1A. An internal switch automatically switches between
the RTC backup-battery and main battery supply.
The single supply voltage may vary from 2.7V to 5.5V.
2 Key Features
Audio
Audio power consumption:
- 5mW: 96dB DAC to Headphone @ 1.8V, 32
- 7mW: 100dB DAC to Headphone @ 2.9V, 32
Sigma Delta Converters
DAC
- 98dB SNR ('A' weighted) @ 1.7V
- 102dB SNR ('A' weighted) @ 2.9V
ADC
- 85dB SNR ('A' weighted) @ 1.7V
Sampling Frequency
- DAC: 8-96kHz
- ADC: 8-24kHz
High Efficiency Headphone Amplifier
volume control via serial interface
32 steps @1.5dB and MUTE
2x12mW @16
driver capability@ 1.8V supply
THD -74dB @16 ; 1.8V
2x40mW @16
driver capability@ 3.6V supply
THD -77dB @16 ; 3.6V
headphone and over-current detection
phantom ground eliminates large capacitors
ground noise cancellation
Line Output
volume control via serial interface
32 steps @1.5dB and MUTE
0.6Vp @10k , 1.8V
ground noise cancellation
ams
AG
Technical
content
still
valid
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ASM2I9940LG-32LT | IC CLK BUFFER 2:18 250MHZ 32LQFP |
| ASM3P2780AF-06OR | IC FREQ MOD 4X EMI REDUCT 6TSOP |
| AT42QT1011-MAH | IC SENSR TOUCH/PROX 1CH 8-UDFN |
| AT42QT2161-MMU | IC TOUCH SENSOR 16KEY 28QFN |
| B300W35A102E1G | IC PROCESSOR AUDIO 24BIT WLCSP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS35490FLF | 制造商:TT Electronics / IRC 功能描述:AS35490FLF |
| AS35490HLF | 制造商:TT Electronics / IRC 功能描述:AS35490HLF |
| AS35490JLF | 制造商:TT Electronics / IRC 功能描述:AS35490JLF |
| AS35491FLF | 制造商:TT Electronics / IRC 功能描述:AS35491FLF |
| AS35491HLF | 制造商:TT Electronics / IRC 功能描述:AS35491HLF |
發(fā)布緊急采購，3分鐘左右您將得到回復。