- 您现在的位置：买卖IC网 > PDF目录98254 > TLV320AIC3111IRHBT (TEXAS INSTRUMENTS INC) AUDIO AMPLIFIER, PQCC32 PDF资料下载
参数资料
| 型号： | TLV320AIC3111IRHBT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | AUDIO AMPLIFIER, PQCC32 |
| 封装： | 5 X 5 MM, GREEN, PLASTIC, QFN-32 |
| 文件页数： | 111/156页 |
| 文件大小： | 1701K |
| 代理商： | TLV320AIC3111IRHBT |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页当前第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页第153页第154页第155页第156页
SLAS644B – JULY 2009 – REVISED OCTOBER 2009
www.ti.com
Each of these INT1 and INT2 interrupts can be routed to output pins GPIO1 or DOUT. These interrupt
signals can either be configured as a single pulse or a series of pulses by programming page 0 /
register 48, bit D0 and page 0 / register 49, bit D0. If the user configures the interrupts as a series of
pulses, the events trigger the start of pulses that stop when the flag registers in page 0 / registers 44, 45,
and 50 are read by the user to determine the cause of the interrupt.
5.6.7
Key-Click Functionality With Beep Generator (PRB_P25)
A special algorithm has been included in the digital signal processing block PRB_P25 for generating a
digital sine-wave signal that is sent to the DAC. This functionality is intended for generating key-click
sounds for user feedback. The sine-wave generator is very flexible (see Table 5-35) and is completely
register programmable. Programming page 0 / register 71 through page 0 / register 79 (8 bits each)
completely controls the functionality of this generator and allows for differentiating sounds.
The two registers used for programming the 16-bit sine-wave coefficient are page 0 / register 76 and
page 0 / register 77. The two registers used for programming the 16-bit cosine-wave coefficient are
page 0 / register 78 and page 0 / register 79. This coefficient resolution allows virtually any frequency of
sine wave in the audio band to be generated, up to fS/2.
The three registers used to control the length of the sine-burst waveform are page 0 / register 73 through
page 0 / register 75. The resolution (bit) in the registers of the sine-burst length is one sample time, so this
allows great control on the overall time of the sine-burst waveform. This 24-bit length timer supports
16,777,215 sample times. (For example, if fS is set at 48 kHz, and the register value equals 96,000d
(01 7700h), then the sine burst lasts exactly 2 seconds.) The default settings for the tone generator, based
on using a sample rate of 48 kHz, are 1-kHz (approximately) sine wave, with a sine-burst length of five
cycles (5 ms).
Table 5-35. Beep Generator Register Locations (Page 00h)
LEFT
RIGHT
BEEP LENGTH
SINE
COSINE
BEEP
MSB
MID
LSB
MSB
LSB
MSB
LSB
CONTROL
REGISTER
71
72
73
74
75
76
77
78
79
Table 5-36. Example Beep-Generator Settings for a 1000-Hz Tone
BEEP FREQUENCY
BEEP LENGTH
SINE
COSINE
SAMPLE RATE
MSB
MID
LSB
MSB
LSB
MSB
LSB
Hz
(hex)
1000(1)
0
EE
10
D8
7E
E3
48,000
(1)
These are the default settings.
Two registers are used to control the left sine-wave volume and the right sine-wave volume independently.
The 6-bit digital volume control used allows level control of 2 dB to –61 dB in 1-dB steps. The left-channel
volume is controlled by writing to page 0 / register 71, bits D5–D0. The right-channel volume is controlled
by writing to page 0, register 72, bits D5–D0. A master volume control that controls the left and right
channels of the beep generator can be set up by writing to page 0 / register 72, bits D7–D6. The default
volume control setting is 2 dB, which provides the maximum tone-generator output level.
For generating other tones, the three tone-generator coefficients can be found by running the following
script using MATLAB :
Sine = dec2hex(round(sin(2*pi*Fin/Fs)*2^15)) Cosine =
dec2hex(round(cos(2*pi*Fin/Fs)*2^15)) Beep Length =
dec2hex(floor(Fs*Cycle/Fin))
where,
fin = Beep frequency desired
fS = Sample rate
Cycle = Number of beep (sine wave) cycles that are needed
58
APPLICATION INFORMATION
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): TLV320AIC3111
相关PDF资料 |
PDF描述 |
|---|---|
| TLV320AIC3111IRHBR | AUDIO AMPLIFIER, PQCC32 |
| TLV320AIC3120IRHBR | AUDIO AMPLIFIER, PQCC32 |
| TLV320AIC3120IRHBT | AUDIO AMPLIFIER, PQCC32 |
| TLV320AIC31IRHBRG4 | SPECIALTY CONSUMER CIRCUIT, PQCC32 |
| TLV320AIC31IRHBR | SPECIALTY CONSUMER CIRCUIT, PQCC32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TLV320AIC3120 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Low-Power Mono Audio Codec With Embedded miniDSP and Mono Class-D Speaker Amplifier |
| TLV320AIC3120EVM-U | 功能描述:音频 IC 开发工具 TLV320AIC3120EVM-U Eval Mod RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| TLV320AIC3120IRHBR | 功能描述:接口—CODEC Low-Pwr Audio CODEC RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
| TLV320AIC3120IRHBT | 功能描述:接口—CODEC Low-Pwr Audio CODEC RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
| TLV320AIC31EVM | 功能描述:音频 IC 开发工具 TLV320AIC31 Eval Mod RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
发布紧急采购，3分钟左右您将得到回复。