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AS3421 数据表(PDF) 7 Page - ams AG

部件名 AS3421
功能描述  Low Power Ambient Noise-Cancel l ing Speaker Dr iver
PDF  61 Pages
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制造商  AMSCO [ams AG]
网页  http://www.ams.com
标志 AMSCO - ams AG

AS3421 数据表(HTML) 7 Page - ams AG

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Revision 0.90
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AS3421 AS3422
Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
7 Electrical Characteristics
VBAT = 1.0V to 1.8V, TA = -20ºC to +85ºC. Typical values are at VBAT = 1.5V, TA = +25ºC, unless otherwise specified. All limits are guaranteed.
The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality Control) methods.
Table 3. Electrical Characteristics
Symbol
Parameter
Condition
Min
Max
Unit
TA
Ambient Temperature Range
-20
+85
°C
Supply Voltages
GND
Reference Ground
0
0
V
VBAT,
HPVDD
Battery Supply Voltage
normal operation with MODE pin high
1.0
1.8
V
Two wire interface operation
1.4
1.8
V
VNEG
ChargePump Voltage
-1.8
-0.7
V
VSS
Analog neg. Supply Voltages
HPVSS, VSS, VNEG
-1.8
-0.7
V
VDELTA-
Difference of Ground Supplies
GND, AGND
To achieve good performance, the negative
supply terminals should be connected to low
impedance ground plane.
-0.1
0.1
V
VDELTA--
Difference of Negative Supplies
VSS, VNEG, HPVSS
Charge pump output or external supply
-0.1
0.1
V
VDELTA+
Difference of Positive Supplies
VBAT-HPVDD
-0.25
0.25
V
Other pins
VMICS
Microphone Supply Voltage
MICS
0
3.6
V
VHPVDD
Pins with diode to HPVDD
MICL/R, HPR, HPL, QMICL/R, QLINL/R,
IOPx, QOPx
VSS
3.6
V
VVBAT
Pins with diode to VBAT
CPP, CPN
VNEG
VBAT
V
VCONTROL
Control Pins
MODE_CSCL, ANC_CSDA
VSS
3.7
V
VTRIM
Line Input & Application Trim Pins
LINL_P, LINL_N, LINR_P, LINR_N
VNEG -0.5
or -1.8
HPVDD +0.5
or 1.8
V
Symbol
Parameter
Condition
Min
Typ
Max
Unit
Ileak
Leakage current
VBAT<0.8V
20
A
VBAT<0.6V
10
A
Block Power Requirements @ 1.5V VBAT
IOFF
Off mode current
MODE pin low, device switched off
1
A
ISYS
Reference supply current
Bias generation, oscillator, ADC6, VNEG
0.25
mA
ILIN
LineIn gain stage current
no signal, stereo
0.5
mA
IMIC
Mic gain stage current
no signal, stereo
2.10
mA
IHP
Headphone stage current
no signal
1.70
mA
IMICS
MICS charge pump current
no load
30
A
IMIN
Minimal supply current
Sum of all above blocks
4.6
mA
IOP1
OP1 supply current
no load
0.64
mA
IOP2
OP2 supply current
no load
0.64
mA



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