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TLV320AIC3254IRHBR Datasheet(PDF) 11 Page - Texas Instruments

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Part # TLV320AIC3254IRHBR
Description  Ultra Low Power Stereo Audio Codec with Embedded miniDSP
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TLV320AIC3254IRHBR Datasheet(HTML) 11 Page - Texas Instruments

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TLV320AIC3254
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SLAS549D – SEPTEMBER 2008 – REVISED NOVEMBER 2014
8.7 Electrical Characteristics, Microphone Interface
At 25°C, AVDD, DVDD, IOVDD = 1.8V, LDOIN = 3.3V, AVDD and DVDD LDO disabled, fs (Audio) = 48kHz, Cref = 10µF on REF
pin, PLL disabled unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
MICROPHONE BIAS
Bias voltage CM = 0.9V, LDOIN = 3.3V
Micbias Mode 0, Connect to AVDD or LDOIN
1.25
V
Micbias Mode 1, Connect to LDOIN
1.7
V
Micbias Mode 2, Connect to LDOIN
2.5
V
Micbias Mode 3, Connect to AVDD
AVDD
V
Micbias Mode 3, Connect to LDOIN
LDOIN
V
Bias voltage
CM = 0.75V, LDOIN = 3.3V
Micbias Mode 0, Connect to AVDD or LDOIN
1.04
V
Micbias Mode 1, Connect to AVDD or LDOIN
1.425
V
Micbias Mode 2, Connect to LDOIN
2.075
V
Micbias Mode 3, Connect to AVDD
AVDD
V
Micbias Mode 3, Connect to LDOIN
LDOIN
V
CM = 0.9V, Micbias Mode 2, A-weighted,
20Hz to 20kHz bandwidth,
Output Noise
10
μVRMS
Current load = 0mA.
Current Sourcing
Micbias Mode 2, Connect to LDOIN
3
mA
Micbias Mode 3, Connect to AVDD
140
Inline Resistance
Ω
Micbias Mode 3, Connect to LDOIN
87
Copyright © 2008–2014, Texas Instruments Incorporated
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