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PDF AS3517 Data sheet ( Hoja de datos )
| Número de pieza | AS3517 | |
| Descripción | Stereo Audio Codec | |
| Fabricantes | austriamicrosystems AG | |
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AS3517 V17
Data Sheet, Confidential
AS3517
Data Sheet, Confidential
Stereo Audio Codec with enhanced System Power Management
1 General Description
The AS3517 is a low power stereo audio codec and is
designed for Portable Digital Audio Applications. It allows
playback and recording in CD quality. It has a variety of audio
inputs and outputs to directly connect electret microphones,
16Ω/32Ω headsets and auxiliary signal sources via a 10-
channel mixer. It only consumes 20mW in playback mode.
Further the device offers advanced power management
functions. All necessary ICs and peripherals in a Digital Audio
Player with flash or harddisk memory are supplied by the
AS3517. The different regulated supply voltages are
programmable via the serial control interface. The power
management block generates 11 different supply voltages out
of a single battery supply. CPU, NAND flash, SRAM, memory
cards, harddisk, LCD, LCD backlight, USB-HOST and USB-
OTG can be powered. AS3517 also contains a charger. The
single supply voltage may vary from 3.0V to 5.5V.
The AS3517 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 in slave
mode. Further the AS3517 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: 94dB SNR (‘A’ weighted) @ 2.9V
– ADC: 90dB SNR (‘A’ weighted) @ 2.9V
– Sampling Frequency: 8-48kHz
• 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
• Audio Mixer
– 10 channel input/output mixer with AGC
– mixes line inputs and microphones with DAC
– left and right channels independent
• 2 Line Outputs
– volume control via serial interface
– 32 steps @1.5dB and MUTE
– 1Vp @10kΩ
– Stereo 2*5mW to 16ohm
– Differential 10mW to 32ohm (earpiece)
• High Efficiency Headphone Amplifier
– volume control via serial interface
– 32 steps @1.5dB and MUTE
– 2x60mW @16Ω driver capability
– headphone and over-current detection
– phantom ground eliminates large capacitors
• Power Management
– step down for CPU core (0.65V-3.4V, 250mA)
– step down for peripheral (0.65V-3.4V, 250mA)
– step down for harddisk (0.65V-3.4V, 500mA)
– step up for backlight (15V (25V), 38mA),
– LDO for digital supply (2.9V, 200mA)
– LDO for analog supply (2.9V, 200mA)
– LDO for peripherals (1.2V-3.5V, 200mA)
– LDO for peripherals (1.2V-3.5V, 200mA)
– LDO for RTC (1.0V-2.5V, 2mA)
– power supply supervision
– hibernation modes
– 5sec and 10sec emergency shut-down
• Battery Charger
– automatic trickle charge (50mA)
– prog. constant current charging (50-460mA)
– prog. constant voltage charging (3.9V-4.25V)
• Real Time Clock
– ultra low power 32kHz oscillator
– 32bit RTC sec counter, 96 days auto wake-up
– selectable alarm (seconds or minutes)
– 128bit free SRAM for random settings
– 32kHz clock output to peripheral
• Auxiliary Oscillator (only for master clock mode)
– low power 12-24MHz oscillator
– master clock input/output (e.g. from/to CPU)
• General Purpose ADC
– 10bit resolution
– 21 inputs analog multiplexer
• Interfaces
– I²S digital audio interface and SPDIF
– 2 wire serial control interface
– reset pin, watchdog, power good pin
– PWM output
– 128bit unique ID (OTP)
– 30 different interrupts
• Package CTBGA81 [9.0x9.0x1.15mm] 0.8mm pitch
3 Application
Portable Digital Audio Player and Recorder
PDA, Smartphone
© 2003-2007, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved.
www.austriamicrosystems.com
Revision 1v3
1 - 93
1 page  
AS3517 V17
Data Sheet, Confidential
Revision History
Revision
0.99
1.0
Date
Owner
6.10.2006 pkm
12.10.2006 pkm
1.1 26.1.2007 pkm
1.2 6.4.2007 pkm
1.3 24.9.2008 pkm
Description
Corrected version
Changed block diagram of DCDC15
Inserted register overview
Corrected some typos
Corrected block diagram (DAC mute)
Corrected start-up sequence (VPROG1 and VPROG2 exchange)
Added Typical Application Information
Changed chip version for V17
RTCT register reset corrected to RVDD-POR
USB & CHGIN 0ms de-bounce time changed to 8ms
Updated marking and ordering information
© 2003-2007, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved.
www.austriamicrosystems.com
Revision 1v3
5 - 93
5 Page 
AS3517 V17
Data Sheet, Confidential
8 Absolute Maximum Ratings (Non-Operating)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings
only. Functional operation of the device at these or any other conditions beyond those indicated under “Operating Conditions” is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. The device should be
operated under recommended operating conditions.
Table 3 Absolute Maximum Ratings
Symbol
VIN_5V
Parameter
5V pins
VIN_SW15
VIN_VSS
VIN_DVDD
15V pin
Voltage difference at VSS
terminals
3.3V pins with diode to DVDD
VIN_xDVDD pins with no diode to DVDD
VIN_AVDD 3.3V pins with diode to AVDD
VIN_REG
VIN_RVDD
VIN_BVDD
Iscr
ESD
Pt
H
voltage regulator pins with
diodes to BVDD
voltage regulator pin with
diode to BVDD
pins with diode to BVDD
Input Current (latchup
immunity)
Electrostatic Discharge HBM
Total Power Dissipation (all
supplies and outputs)
Humidity non-condensing
Min Max Unit
Note
-0.5 7.0
V Applicable for pins BVDD, BVDDH,
BVDDC1, BVDDC2, BVDDC3, BVDDR,
CHG_IN, VBUS
-0.5 17
V Applicable for pin SW15
-0.5 0.5
V Applicable for pins CVSS3, CVSS15,
CVSS1, CVSS2, VSSH, AVSS, DVSS
-0.5 5.0
V Applicable for pins LRCK, SCLK, SDI,
DVDD+0.5
VPRG1, VPRG2, BATTEMP, ISINK,
XIN32, XOUT32, XIN24, XOUT24, XIRQ,
XRES, PWGD, Q32K, Q24M, HBT
-0.5 7.0V
V Applicable for pins
CSCL, CSDA, PWRUP
-0.5 5.0
V Applicable for pins HPCM, HPGND,
AVDD+0.5
LOUT1L/R, LOUT2L/R, VREF, AGND,
LIN1L/R, LIN2L/R, MIC1P/N, MIC2P/N,
MIC1S, MIC2S
-0.5 5.0
V Applicable for pins AVDD, DVDD,
BVDD+0.5
PVDD1/2, CVDD1/2/3, UVDD
-0.5 3.6
V Applicable for pins RVDD
BVDD+0.5
-0.5 7.0
V Applicable for pins HPR/L, CHG_OUT
BVDD+0.5
-100 100
mA Norm: JEDEC 17
+/-1
1000
kV Norm: JEDEC JESD22-A114C
mW BGA81, Tamb=70°C
5 85 %
Table 4 Soldering Conditions
Symbol
Parameter
Min
Tbody
Tpeak
Dwell
Package Body Temperature
Solder Profile*
235
30
* austriamicrosystems AG strongly recommends to use underfill.
Max
260
245
45
Unit Note
°C Norm IPC/JEDEC J-STD-020C, reflects
moisture sensitivity level only
°C
s above 217 °C
© 2003-2007, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved.
www.austriamicrosystems.com
Revision 1v3
11 - 93
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AS3517.PDF ] | |
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