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參數資料
型號： TLV320AIC3120IRHBT
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： 100/150頁
文件大小： 1507K
代理商： TLV320AIC3120IRHBT
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Micbias
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MICBIAS
HPOUT
VOL/MICDET
Micpga
Hpout
S0403-01
www.ti.com
SLAS653 – FEBRUARY 2010
Script
# Go to Page 0
w 30 00 00
# DAC => 12 db gain mono
w 30 41 18
# DAC => DRC Enabled, Threshold = -24 db, Hysteresis = 3 dB
w 30 44 7F
# DRC Hold = 0 ms, Rate of Changes of Gain = 0.5 dB/Fs'
w 30 45 00
#Attack Rate = 1.9531e-4 dB/Frame , DRC Decay Rate =2.4414e-5 dB/Frame
w 30 46 B6
# Go to Page 9
w 30 00 09
# DRC HPF
w 30 0E 7F AB 80 55 7F 56
# DRC LPF
W 30 14 00 11 00 11 7F DE
5.6.4.7
Headset Detection
The TLV320AIC3120 includes extensive capability to monitor a headphone, microphone, or headset jack,
to determine if a plug has been inserted into the jack, and then determine what type of
headset/headphone is wired to the plug. The device also includes the capability to detect a button press,
even, for example, when starting calls on mobile phones with headsets. Figure 5-31 shows the circuit
configuration to enable this feature.
Figure 5-31. Jack Connections for Headset Detection
This feature is enabled by programming page 0 / register 67, bit D1. In order to avoid false detections due
to mechanical vibrations in headset jacks or microphone buttons, a debounce function is provided for
glitch rejection. For the case of headset insertion, a debounce function with a range of 32 ms to 512 ms is
provided. This can be programmed via page 0 / register 67, bits D4–D2. For improved button-press
detection, the debounce function has a range of 8 ms to 32 ms by programming page 0 / register 67, bits
D1–D0.
The TLV320AIC3120 also provides feedback to the user when a button press or a headset
insertion/removal event is detected through register-readable flags or through an interrupt on the I/O pins.
The value in page 0 / register 46, bits D5–D4 provides the instantaneous state of button press and
headset insertion. Page 0 / register 44, bit D5 is a sticky (latched) flag that is set when the button-press
event is detected. Page 0 / register 44, bit D4 is a sticky flag which is set when the headset insertion or
Copyright 2010, Texas Instruments Incorporated
APPLICATION INFORMATION
53
Product Folder Link(s): TLV320AIC3120
相關PDF資料
PDF描述
TLV320AIC31IRHBRG4 SPECIALTY CONSUMER CIRCUIT, PQCC32
TLV320AIC31IRHBR SPECIALTY CONSUMER CIRCUIT, PQCC32
TLV320AIC31IRHBTG4 SPECIALTY CONSUMER CIRCUIT, PQCC32
TLV320AIC31IRHBT SPECIALTY CONSUMER CIRCUIT, PQCC32
TLV320AIC3253IRGER SPECIALTY CONSUMER CIRCUIT, PQCC24
相關代理商/技術參數
參數描述
TLV320AIC31EVM 功能描述:音頻 IC 開發工具 TLV320AIC31 Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V
TLV320AIC31EVM-PDK 功能描述:音頻 IC 開發工具 TLV320AIC31-PDK Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V
TLV320AIC31IRHBR 功能描述:接口—CODEC Lo-Pwr Ster Codec for Port Aud/Teleph RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量: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 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
TLV320AIC31IRHBRG4 功能描述:接口—CODEC Lo-Pwr Ster Codec for Port Aud/Teleph RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量: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 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
TLV320AIC31IRHBT 功能描述:接口—CODEC Lo-Pwr Ster Codec for Port Aud/Teleph RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量: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 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
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