- 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： | AS3543-ECTP |
| 廠商： | ams |
| 文件頁數(shù)： | 11/92頁 |
| 文件大?。?/td> | 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頁當(dāng)前第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
18 - 91
AS3543 3v2
Data Sheet - D e t a i l e d D e s c r i p t i o n - A u d i o F u n c t i o n s
8.2.4
Remote Control
Fast changes of the supply current of typically 500uA are detected as a remote button press, and an interrupt is gener-
ated. Then the CPU can start the measurement of the microphone supply current with the internal 10-bit ADC to distin-
guish which button was pressed. As the current measurement is done via an internal resistor, only two buttons
generating a current of about 0.5mA and 1mA can be detected. With this, 1mA as microphone bias is still available.
8.2.5
Voice Activation
Further a built-in voice activation comparator can actuate an interrupt if microphone input voltage of about 5mVRMS is
detected.
8.2.6
Parameter
AVDD17=1.7V, AVDD27=2.7V, TA= 25
o
C unless otherwise mentioned
Table 9. Microphone Input Parameter
Symbol
Parameter
Condition
Min
Typ
Max
Unit
VMICIN0
Input Signal Level
AMICPRE = 30dB; AMIC = 0dB
20
mVP
VMICIN1
AMICPRE = 36dB; AMIC = 0dB
10
mVP
VMICIN2
AMICPRE = 42dB; AMIC = 0dB
5
mVP
RMICIN
Input Impedance
MICP, MICN to AGND
7.5
k
MICIN
Input Impedance Tolerance
-7
+33
%
CMICIN
Input Capacitance
5
pF
AMICPRE
Microphone Preamplifier
Gain
Preamplifier has 3 selectable (fixed)
gain settings
30
36
42
dB
AMIC
Programmable Gain
-40.5
+6
dB
Gain Steps
discrete logarithmic gain steps
1.5
dB
Gain Step Precision
±0.25
dB
VATTACK
Limiter Activation Level
0.57
VPEAK
VDECAY
Limiter Release Level
0.47
VPEAK
AMICLIMIT
Limiter Gain Overdrive
128 @ 0.375dB
30
36
42
dB
tATTACK
Limiter Attack Time
50
s/6dB
tDECAY
Limiter Decay Time
120
ms/
6dB
AMICMUTE
Mute Attenuation
100
dB
VMICSUP
Microphone Supply Voltage
depending on V_MICS setting
2
1.55
1.26
1.06
V
IMICMAX
Max. Microphone Supply
Current
microphones nominally need a bias
current of 0.5mA-1mA
6.5
mA
VNOISE
Microphone Supply Voltage
Noise
5
V
IMICDET
Microphone Detection
Current
50
A
IREMDET
Max. Remote Detection
Current
500
A
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)。