austriamicrosystems Data Sheet, Confidential www.austriamicrosystems.com Revision 3.1 13 - 6" />
參數(shù)資料
型號(hào): AS3515-T
廠商: ams
文件頁(yè)數(shù): 6/67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
13
- 66
6.3
Speaker Output
6.3.1
General
The speaker output is designed to provide the stereo audio signal with 2x500mW @ 4
Ω.
This output stage has an independent gain regulation for left and right channel with 32 steps @ 1.5dB each. The gain can be set from
40.5dB to +6dB. The maximum output power of 500mW @ 4Ω is achieved, by setting the mixer output to 1Vp and using the gain of
+6dB.
Figure 4 Speaker Output
6.3.2
No-Pop Function
BGND pin, which needs a 100nF capacitor outside, gets charged on power-up to BVDD/2.To avoiding click and pop noise during power-
up and shutdown, the output is automatically set to mute when the output stage is disabled.
The Start-up time before releasing mute is about 100ms. To avoid pop-noise the 150ms discharging time of SPR / SPL after a shutdown
(220F capacitor in stereo single ended mode assumed), have to be waited before starting up again.
6.3.3
Over-current Protection
This output stage has an over-current protection, which disables the output for 0 to 512ms. This value can be set in the speaker registers.
The over-current protection limit of SPR and SPL pin is typical 700mA. To get an interrupt on an over-current event, the corresponding bit
in the IRQ_ENRD1 register (0x26h) has to be set.
6.3.4
Power Save Options
When driving > 4
Ω, two power save options can be chosen.
The output driver stage can be set to only 25% drive capacity, which will reduce the maximum output power. Additionally the bias currents
can be reduced to 50% in 3 steps.
Table 11 Speaker Power-Save Options
LSP_LP
IBR_LSP IDD_HPH (typ.)
Load
0
00
8mA
4 Ohm
1
00
2.8mA
16-32 Ohm
1
01
2.4mA
16-32 Ohm
1
10
1.9mA
16-32 Ohm
1
11
1.5mA
16-32 Ohm
BVDD = 3.3V, TA= 25oC unless otherwise mentioned
ams
AG
Technical
content
still
valid
相關(guān)PDF資料
PDF描述
AS3515 IC CODEC AFE AUDIO STER 64-CABGA
AS3517-T IC CODEC AFE AUDIO STER 81-CTBGA
AS3543-ECTP IC CODEC AUDIO FRONT END 68CTBGA
ASM2I9940LG-32LT IC CLK BUFFER 2:18 250MHZ 32LQFP
ASM3P2780AF-06OR IC FREQ MOD 4X EMI REDUCT 6TSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AS351604-2 功能描述:揚(yáng)聲器與變頻器 4 Ohm 700-13000Hz RoHS:否 制造商:PUI Audio 產(chǎn)品:Speakers 類型:Electromagnetic 頻率:900 Hz to 12 kHz 聲壓級(jí):88 dBA 阻抗:8 Ohms 功率額定值:1.2 W 形狀:Round 端接類型:Solder Pad 直徑:15 mm 長(zhǎng)度: 寬度: 深度:4.4 mm 磁體材料:Neodymium Iron Boran (NdFeB) 圓錐體材料:Mylar
AS3517 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
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