參數(shù)資料
型號(hào): TAS3103DBTG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO38
封裝: GREEN, PLASTIC, TSSOP-38
文件頁(yè)數(shù): 147/148頁(yè)
文件大?。?/td> 1247K
代理商: TAS3103DBTG4
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)當(dāng)前第147頁(yè)第148頁(yè)
339
The transfer curve remains a constant 24 dB above the 1:1 transfer curve for input levels above and below T2 until
the computed DRC gain coefficient falls within the dynamic range of a 5.23 format number. For input levels above
T2, k2 implements a 5:1 compression, At an input level 7.5 dB above T2 (62.5 dB), the DRC transfer curve has risen
7.5/5 = 1.5 dB. The boost at this point is 30 dB - (7.5 dB - 1.5 dB) = 24 dB. The DRC has come out of gain saturation.
For input levels above 62.5 dB, the transfer curve exhibits 5:1compression.
Table 35. DRC Example 2 Parameters
DRC
PARAMETER
REQUIRED (SPECIFIED) VALUE
(NET GAINSAP Input-DRC = 0 dB)
I2C COEFFICIENT VALUE
T2
22 dBInput 70 dBDRC
70/6.0206= 11.626748
= 0x000005D0394825.23 Format
T1
102 dBInput 150 dBDRC
150/6.0206 = 24.91446
= 0x00000C750D0925.23 Format
O2
30 dB
(30 + 24.0824)/6.0206 = 0.982892
= 0xFFFFFF82309825.23 Format
O1
50 dB
(50 + 24.0824)/6.0206 = 12.304820
= 0x00000627045825.23 Format
k2
5:1 Compression
(1/5) 1 = 0.8 = 0xF99999A5.23 Format
k1
1:2 Expansion
2 1 = 1 = 0x08000005.23 Format
k0
2:1 Compression
(1/2) 1 = 0.5 = 0xFC000005.23 Format
For input levels below T2, k1 implements a 1:2 expansion. With a 1:2 expansion in effect, the transfer curve has
dropped 12 dB at an input level 6 dB below T2. The boost at this level is 30 dB (12 dB 6 dB) = 24 dB. The DRC
gain coefficient has again come out of saturation. For input levels below 76 dB and above 150 dB, the transfer curve
exhibits a 1:2 expansion.
At T1 (-150 dB), the transfer curve is 50 dB below the 1:1 transfer curve. Since O1 = 50 dB, there is no discontinuity
in the transfer function. For inputs below 150 dB, k0 implements a 2:1 compression. The change from a 2:1
compression to a 1:1 transfer at 192 dB is due to 32-bit dynamic range saturation at the DRC input.
3.7.3.3 Example 3—1:1 Transfer/Infinite Compression With Minimum Gain Saturation, 32-Bit
Dynamic Range Saturation, and Equal Threshold Settings (T1=T2)
The DRC transfer function parameters for this example are given in Table 36. In addition to illustrating minimum gain
saturation, this example also illustrates the operation of the DRC when T1 and T2 are set equal.
相關(guān)PDF資料
PDF描述
TAS3202PAGR SPECIALTY CONSUMER CIRCUIT, PQFP64
TAS3202PAG SPECIALTY CONSUMER CIRCUIT, PQFP64
TAS3204PAGR SPECIALTY CONSUMER CIRCUIT, PQFP64
TAS3204PAG SPECIALTY CONSUMER CIRCUIT, PQFP64
TAS3218IPZPR SPECIALTY CONSUMER CIRCUIT, PQFP100
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TAS3103DBTR 功能描述:音頻 DSP Digital Audio Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube
TAS3103DBTRG4 功能描述:音頻 DSP Digital Audio Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube
TAS3103EVM 功能描述:音頻 DSP TAS3103 Eval Mod RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube
TAS3103IDBT 功能描述:音頻 DSP Digital Audio Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube
TAS3103IDBTR 功能描述:音頻 DSP Digital Audio Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube