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參數(shù)資料
型號(hào)： AS3515-T
廠商： ams
文件頁(yè)數(shù)： 12/67頁(yè)
文件大?。?/td> 0K
描述： IC CODEC AFE AUDIO STER 64-CABGA
標(biāo)準(zhǔn)包裝： 2,250
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： 64-TFBGA
供應(yīng)商設(shè)備封裝： 64-CTBGA（7x7）
包裝： 帶卷 (TR)
AS3515 V15
austriamicrosystems
Data Sheet, Confidential
www.austriamicrosystems.com
Revision 3.1
1
- 66
Data Sheet, Confidential
AS3515
Stereo Audio Codec with System Power Management
1 General Description
The AS3515 is a low power stereo audio codec and is
designed for Portable Digital Audio Applications. It allows
playback in CD quality and recording in FM-stereo quality. It
has a variety of audio inputs and outputs to directly connect
electret microphones, 16
Ω headset, 4Ω speaker and auxiliary
signal sources via a 10-channel mixer. It only consumes 22mW
in playback mode.
Further the device offers advanced power management
functions. All necessary ICs and peripherals in a flash based
Digital Audio Player are supplied by the AS3515. The power
management block generates 9 different supply voltages out of
the battery supply. CPU, NAND flash, SRAM, memory cards,
LCD back-light, USB RX/TX can be powered. The different
supply voltages are programmable via the serial control
interface. It also contains a charger and is designed for battery
supplies from 1V to 5V.
The AS3515 has an on-chip, phase locked loop (PLL)
controlled, clock generator. It generates 44.1kHz, 48kHz and
other sample rates defined in MP3, AAC, WMA, OGG VORBIS
etc. No additional external crystal or PLL is needed. Further the
AS3515 has an independent 32kHz real time clock (RTC) on
chip which allows a complete power down of the system CPU.
2 Key Features
Multi-bit Sigma Delta Converters
– DAC: 18bit with 94dB SNR (‘A’ weighted) , 48kHz
– ADC: 14bit with 82dB SNR (‘A’ weighted), 16kHz
2 Microphone Inputs
– 3 gain pre-setting (28dB/34dB/40dB) and AGC
– 32 gain steps @1.5dB and MUTE
– supply for electret microphone
– microphone detection
– remote control by switch
2 Line Inputs
– volume control via serial interface
– 32 steps @1.5dB and MUTE
– stereo or 2x mono or mono differential
Line Outputs
– volume control via serial interface
– 32 steps @1.5dB and MUTE
– 1Vp @10k
Ω
– mono differential 5mW to 32
Ω (ear-peace)
Audio Mixer
– 10 channel input/output mixer with AGC
– mixes line inputs and microphones with DAC
– left and right channels independent
High Efficiency Headphone Amplifier
– volume control via serial interface
– 32 steps @1.5dB and MUTE
– 2x40mW @16
Ω driver capability
– headphone and over-current detection
– phantom ground eliminates large capacitors
High Power Speaker Amplifier
– volume control via serial interface
– 32 steps @1.5dB and MUTE
– 2x500mW @8
Ω driver capability
– over-current detection
Power Management
– step up for system supply (3.0V – 3.6V)
– charge pump for CPU core (0.85V – 1.8V, 200mA)
– step up for backlight (15V, 38.5mA)
– LDO for digital supply (2.9V, 200mA)
– LDO for analogue supply (2.9V, 200mA)
– LDO for peripherals (1.7V-3.3V, 200mA)
– LDO for peripherals (3.1V-3.3V, 200mA)
– LDO for RTC (1.0V-2.5V, 2mA)
– LDO for USB 1.1 transceiver (3.26V, 10mA)
– battery supervision
– 10sec emergency shut-down
Battery Charger
– automatic trickle charge (50mA)
– prog. constant current charging (100-400mA)
– prog. constant voltage charging (3.9V-4.25V)
Real Time Clock
– ultra low power 32kHz oscillator
– 32bit RTC sec counter
– selectable alarm (seconds or minutes)
General Purpose ADC
– 10bit resolution
– 16 inputs analogue multiplexer
Interfaces
– IS digital audio interface
– 2 wire serial control interface
– watchdog via serial interface
– power good pin
– 128bit unique ID (OTP)
– 17 different interrupts
Package
– CTBGA64 [7.0x7.0x1.1mm] 0.8mm pitch
– LQFP64 [10x10x1.4mm] 0.5mm pitch
3 Application
Portable Digital Audio Player and Recorder
PDA, Smartphone
ams
AG
Technical
content
still
valid
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AS3517-T 功能描述:IC CODEC AFE AUDIO STER 81-CTBGA RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關(guān)文件:STA321 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6
AS3518 功能描述:IC CODEC AFE AUDIO STER 64-CABGA RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關(guān)文件:STA321 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6
AS3518-ECTP 功能描述:IC CODEC AFE AUDIO STER 64-CABGA RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關(guān)文件:STA321 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6
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