参数资料
| 型号： | AS3517-T |
| 厂商： | ams |
| 文件页数： | 43/94页 |
| 文件大小： | 0K |
| 描述： | IC CODEC AFE AUDIO STER 81-CTBGA |
| 标准包装： | 2,000 |
| 类型： | 音频编解码器 |
| 应用： | 便携式音频，电话 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 81-TFBGA |
| 供应商设备封装： | 81-CTBGA（9x9） |
| 包装： | 带卷 (TR) |
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AS3517 V17
Data Sheet, Confidential
2003-2007, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved.
www.austriamicrosystems.com
Start-up Sequence
The AFE offers 25 different power-up sequences. The specific start-up sequence can be selected via VPRG1 and VPROG2 pin. Each pin
detects 5 logical input states which shall come from an external resistor divider network.
At first, LDO1 (AVDD) and LDO2 (DVDD) is powering up. This cannot be influenced with the selection of specific sequences below. LDO1
and LDO2 are necessary for the internal supply of the AFE.
After power-up sequence selected by pin VPRG1, all voltage settings and power on/off conditions of the described regulators can be
programmed via the serial interface.
Table 36 Start-up Modes
DCDC1
DCDC2
DCDC3
DCDC4
DCDC15
LDO3
LDO4
#
VPRG2
VPRG1
CVDD1
CVDD2
CVDD3
VBUS
VLED
PVDD1
PVDD2
XRES/
PWGD
1
open
1,2V
3rd
3,3V
2nd
3,3V
1st
x
4th 8th
2
open
vdd
1,2V
3rd
2,5V
2nd
3,3V
1st
x
4th 8th
3
open
150k-vdd 1,2V
3rd
2,5V
2nd
x
3,3V 1st
x
4th 8th
4
open
150k-vss 1,2V
3rd
1,8V
2nd
x
3,3V 1st
x
4th 8th
5
open
vss
1,2V
3rd
x
3,3V 1st 2,5V 2nd 4th 8th
6 150k-vdd
open
1,5V
3rd
3,3V
2nd
3,3V
1st
x
4th 8th
7 150k-vdd
vdd
1,5V
3rd
2,5V
2nd
3,3V
1st
x
4th 8th
8 150k-vdd 150k-vdd 1,5V
3nd
2,5V
2nd
x
3,3V 1st
x
4th 8th
9 150k-vdd 150k-vss 1,5V
3rd
1,8V
2nd
x
3,3V 1st
x
4th 8th
10 150k-vdd
vss
1,5V
3rd
x
3,3V 1st 2,5V 2nd 4th 8th
11
vdd
open
1,8V
3rd
3,3V
2nd
3,3V
1st
x
4th 8th
12
vdd
1,8V
3rd
2,5V
2nd
3,3V
1st
x
4th 8th
13
vdd
150k-vdd 1,8V
3nd
2,5V
2nd
x
3,3V 1st
x
4th 8th
14
vdd
150k-vss 1,8V
3rd
1,8V
2nd
x
3,3V 1st
x
4th 8th
15
vdd
vss
1,8V
3rd
x
3,3V 1st 2,5V 2nd 4th 8th
16
vss
open
1,2V
1st
1,8V
2nd
3,3V
3rd
5,0V
5th 5mA 5th 3,0V 6th 3,0V 7th
*
8th
17
vss
vdd
1,2V
1st
1,8V
2nd
3,0V
3rd
5,0V
5th 5mA 5th 3,0V 6th 3,0V 7th
*
8th
18
vss
150k-vdd 1,2V
1st
2,5V
2nd
3,3V
3rd
5,0V
5th 5mA 5th 3,0V 6th 3,0V 7th
*
8th
19
vss
150k-vss 1,8V
1st
2,5V
2nd
3,3V
3rd
5,0V
5th 5mA 5th 3,0V 6th 3,0V 7th
*
8th
20
vss
1,8V
1st
3,3
2nd
3,3V
3rd
5,0V
5th 5mA 5th 3,0V 6th 3,0V 7th
*
8th
21 150k-vss
open
1,2V
3rd
1,8V
2nd
3,3V
1st
5,0V
5th 5mA 5th 3,0V 6th 3,0V 7th
*
8th
22 150k-vss
vdd
1,2V
3rd
1,8V
2nd
3,0V
1st
5,0V
5th 5mA 5th 3,0V 6th 3,0V 7th
*
8th
23 150k-vss 150k-vdd 1,2V
3rd
2,5V
2nd
3,3V
1st
5,0V
5th 5mA 5th 3,0V 6th 3,0V 7th
*
8th
24 150k-vss 150k-vss 1,8V
3rd
2,5V
2nd
3,3V
1st
5,0V
5th 5mA 5th 3,0V 6th 3,0V 7th
*
8th
25 150k-vss
vss
1,8V
3rd
3,3
2nd
3,3V
1st
5,0V
5th 5mA 5th 3,0V 6th 3,0V 7th
*
8th
*… in Special Mode the XRES is going High 85us (min 60us) after PwrUp key is released
x … means that this regulator is not started with the start-up sequencer but has to be turned on by the 2-wire serial interface when
needed.
Revision 1v3
47
- 93
ams
AG
Technical
content
still
valid
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