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| 型號： | TLV320AIC29IRGZR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC48 |
| 封裝： | 7 X 7 MM, GREEN, PLASTIC, QFN-48 |
| 文件頁數(shù)： | 32/87頁 |
| 文件大小： | 1051K |
| 代理商： | TLV320AIC29IRGZR |
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TLV320AIC29
SLAS494B DECEMBER 2005 REVISED OCTOBER 2007
www.ti.com
38
4
3
2
1
0
1
2
3
4
40
20
0
20
40
60
80
100
Error
in
Measurement
TA Free-Air Temperature 5C
C
°
Figure 28. Typical Plot of Differential Measurement Method After Calibrating for Offset at Room
Temperature
The AIC29 supports programmable auto-temperature measurement mode, which can be enabled using control
register 0CH/page 1. In this mode, the AIC29 can auto-start the temperature measurement after a
programmable interval. The user can program minimum and maximum threshold values through a register. If
the measurement goes outside the threshold range, the AIC29 sets a flag in the read only control register
0CH/page 1, which gets cleared after the flag is read. The AIC29 can also be configured to send and active
high interrupt over GPIO1 by setting D9 in control register 0CH/page 1. The duration of the interrupt is
approximately 2 ms.
Battery Measurement
An added feature of the AIC29 is the ability to monitor the battery voltage on the other side of a voltage regulator
(dc/dc converter), as shown in Figure 29. The battery voltage can vary from 0.5 V to 6 V while maintaining the
analog supply voltage to the AIC29 at 3.0 V to 3.6 V. The input voltage (VBAT) is divided down by a factor of
5 so that a 6.0 V battery voltage is represented as 1.2 V to the ADC. In order to minimize the power consumption,
the divider is only on during the sampling of the battery input.
If the battery conversion results in A/D output code of B, the voltage at the battery pin can be calculated as:
V
BAT +
B
2N
5
VREF
Where:
N is the programmed resolution of A/D
VREF is the programmed value of internal reference or the applied external reference.
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| TLV320AIC29IRGZRG4 | 功能描述:接口—CODEC Stereo Codec RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| TLV320AIC29IRGZT | 功能描述:接口—CODEC Stereo Codec RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
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| TLV320AIC3007 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-POWER STEREO AUDIO CODEC WITH INTEGRATED MONO CLASS-D AMPLIFIER |
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