- 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(hào)： | AS3543-ECTP |
| 廠商： | ams |
| 文件頁數(shù)： | 25/92頁 |
| 文件大小： | 0K |
| 描述： | IC CODEC AUDIO FRONT END 68CTBGA |
| 標(biāo)準(zhǔn)包裝： | 4,000 |
| 類型： | 音頻編解碼器 |
| 應(yīng)用： | 便攜式音頻，電話 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 68-TFBGA |
| 供應(yīng)商設(shè)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頁當(dāng)前第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
www.austriamicrosystems.com
Revision 1.11
30 - 91
AS3543 3v2
Data Sheet - D e t a i l e d D e s c r i p t i o n - P o w e r M a n a g e m e n t F u n c t i o n s
9 Detailed Description - Power Management Functions
9.1
Low Drop Out Regulators
9.1.1
General
These LDOs are designed to supply sensitive analogue circuits, audio devices, AD and DA converters, micro-control-
ler and other peripheral devices. The design is optimized to deliver the best compromise between quiescent current
and regulator performance for battery powered devices.
Stability is guaranteed with ceramic output capacitors of 1F +/-20% (X5R) or 2.2F +100/-50% (Z5U). The low ESR of
these caps ensures low output impedance at high frequencies. Regulation performance is excellent even under low
dropout conditions, when the power transistor has to operate in linear mode. Power supply rejection is high enough to
suppress high ripple on the battery at the output. The low noise performance allows direct connection of noise sensi-
tive circuits without additional filtering networks. The low impedance of the power device enables the device to deliver
up to 150mA even at nearly discharged batteries without any decrease of performance.
Figure 19. LDO Block Diagram
9.1.2
LDO1
This LDO generates the audio supply voltage used for the AFE itself.
Input voltage is VDD17IN
Output voltage is AVDD17 (typ. 1.7V)
Driver strength: 50mA
It is set to a default output voltage of 1.7V, 50mAmax. It supplies the analog audio blocks of the AFE. Additional external
loads are possible but most not exceed the supply ratings in total together with the operating internal blocks. Further
the external load must not induce noise to the sensitive AVDD17 supply pin.
9.1.3
LDO2
This LDO generates the digital and audio supply voltage used for the AFE itself.
Input Voltage is BVDD
Output Voltage is AVDD27 (typ. 2.7V)
Driver strength: 100mA, can be programmed to 200mA
It is set to a default output voltage of 2.7V, 100mAmax. It supplies the digital part of the AFE as well as all audio
switches and multiplexers. Additional external loads are possible but most not exceed the supply ratings in total
together with the operating internal blocks. Further the external load must not induce noise to the AVDD27 supply pin
but is not as critical as AVDD17.
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(fù)。