- 您現在的位置：買賣IC網 > PDF目錄98254 > TLV320AIC3120IRHBR (TEXAS INSTRUMENTS INC) AUDIO AMPLIFIER, PQCC32 PDF資料下載
參數資料
| 型號： | TLV320AIC3120IRHBR |
| 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： | 94/150頁 |
| 文件大小： | 1507K |
| 代理商： | TLV320AIC3120IRHBR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁當前第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁
0
–10
–20
–30
–40
–50
–60
–70
Magnitude
–
dB
0
0.2
0.4
0.6
0.8
1
1.2
1.4
FrequencyNormalizedtof
S
DACChannelResponseforInterpolationFilterC
(RedLineCorrespondsto –43dB)
SLAS653 – FEBRUARY 2010
www.ti.com
5.6.1.4.3 Interpolation Filter C
Filter C is specifically designed for the 192-ksps mode. The pass band extends up to 0.4 × fS
(corresponds to 80 kHz), more than sufficient for audio applications.
Table 5-25. Specification for DAC Interpolation Filter C
Parameter
Condition
Value (Typical)
Unit
Filter-gain pass band
0…0.35 fS
±0.03
dB
Filter-gain stop band
0.6 fS…1.4 fS
–43
dB
Filter group delay
13/fS
s
Figure 5-29. Frequency Response of DAC Interpolation Filter C
5.6.2
DAC Digital-Volume Control
The DAC has a digital-volume control block which implements programmable gain. Each channel has an
independent volume control that can be varied from 24 dB to –63.5 dB in 0.5-dB steps. The mono-channel
DAC volume can be controlled by writing to page 0 / register 65, bits D7–D0. DAC muting and setting up a
master gain control to control the mono channel is done by writing to page 0 / register 64, bits D3 and D1.
The gain is implemented with a soft-stepping algorithm, which only changes the actual volume by 0.125
dB per input sample, either up or down, until the desired volume is reached. The rate of soft-stepping can
be slowed to one step per two input samples by writing to page 0 / register 63, bits D1–D0. Note that the
default source for volume-control level settings is controlled by register writes to page 0 / register 65. Use
of the VOL/MICDET pin to control the DAC volume is ignored until the volume control source selected has
been changed to pin control (page 0 / register 116, bit D7 = 1). This functionality is shown in Figure 1-1.
During soft-stepping, the host does not receive a signal when the DAC has been completely muted. This
may be important if the host must mute the DAC before making a significant change, such as changing
sample rates. In order to help with this situation, the device provides a flag back to the host via a
read-only register, page 0 / register 38, bit D4 for the mono channel. This information alerts the host when
the part has completed the soft-stepping, and the actual volume has reached the desired volume level.
The soft-stepping feature can be disabled by writing to page 0 / register 63, bits D1–D0.
If soft-stepping is enabled, the CODEC_CLKIN signal should be kept active until the DAC power-up flag is
cleared. When this flag is cleared, the internal DAC soft-stepping process is complete, and
CODEC_CLKIN can be stopped if desired. (The analog volume control can be ramped down using an
internal oscillator.)
48
APPLICATION INFORMATION
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TLV320AIC3120
相關PDF資料 |
PDF描述 |
|---|---|
| TLV320AIC3120IRHBT | AUDIO AMPLIFIER, PQCC32 |
| TLV320AIC31IRHBRG4 | SPECIALTY CONSUMER CIRCUIT, PQCC32 |
| TLV320AIC31IRHBR | SPECIALTY CONSUMER CIRCUIT, PQCC32 |
| TLV320AIC31IRHBTG4 | SPECIALTY CONSUMER CIRCUIT, PQCC32 |
| TLV320AIC31IRHBT | SPECIALTY CONSUMER CIRCUIT, PQCC32 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TLV320AIC3120IRHBT | 功能描述:接口—CODEC Low-Pwr Audio CODEC 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 |
| 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 |
發布緊急采購，3分鐘左右您將得到回復。