參數(shù)資料
型號(hào)： TLV320AIC3110IRHBR
廠商： TEXAS INSTRUMENTS INC
元件分類： 音頻／視頻放大
英文描述： AUDIO AMPLIFIER, PQCC32
封裝： 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件頁數(shù)： 44/126頁
文件大小： 1528K
代理商： TLV320AIC3110IRHBR
SLAS647 – DECEMBER 2009
www.ti.com
DOSR = 384, Processing Block = PRB_P12 (Interpolation Filter B)
Power consumption = 14.42 mW
Table 5-12. PRB_P12 Alternative Processing Blocks, 14.42 mW
Processing Block
Filter
Estimated Power Change (mW)
PRB_P4
A
0.16
PRB_P5
A
0.3
PRB_P6
A
0.2
PRB_P13
B
0.15
PRB_P14
B
0.07
PRB_P15
B
0.18
PRB_P16
B
0.09
5.3.7
DAC Playback on Headphones, Stereo, 192 kHz, DVDD = 1.8 V, AVDD = 3.3 V,
HPVDD = 3.3 V
DOSR = 32, Processing Block = PRB_P17 (Interpolation Filter C)
Power consumption = 27.05 mW
Table 5-13. PRB_P17 Alternative Processing Blocks, 27.05 mW
Processing Block
Filter
Estimated Power Change (mW)
PRB_P18
C
5.28
PRB_P19
C
1.98
5.3.8
DAC Playback on Line Out (10 k-
load), Stereo, 48 kHz, DVDD = 1.8 V, AVDD = 3 V,
HPVDD = 3 V
DOSR = 64, Processing Block = PRB_P7 (Interpolation Filter B)
Power consumption = 12.85 mW
5.4
Audio ADC and Analog Inputs
5.4.1
MICBIAS and Microphone Preamplifier
The TLV320AIC3110 includes a microphone bias circuit which can source up to 4 mA of current and is
programmable to a 2-V, 2.5-V, or AVDD level. The level can be controlled by writing to page 1 /
register 46, bits D1–D0. This functionality is shown in Table 5-14.
Table 5-14. MICBIAS Settings
D1
D0
FUNCTIONALITY
0
MICBIAS output is powered down.
0
1
MICBIAS output is powered to 2 V.
1
0
MICBIAS output is powered to 2.5 V.
1
MICBIAS output is powered to AVDD.
During normal operation, MICBIAS can be set to 2.5 V for better performance. However, depending on the
model of microphone that is selected, optimal performance might be obtained at another setting, so the
performance at a given setting should be verified.
The lowest current consumption occurs when MICBIAS is powered down. The next-lowest current
consumption occurs when MICBIAS is set at AVDD.
24
APPLICATION INFORMATION
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): TLV320AIC3110
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參數(shù)描述
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TLV320AIC3111 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low-Power Audio Codec With Embedded miniDSP and Stereo Class-D Speaker Amplifier
TLV320AIC3111_101 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low-Power Audio Codec With Embedded miniDSP and Stereo Class-D Speaker Amplifier
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