參數(shù)資料
型號(hào): TLC320AD75C
廠商: Texas Instruments, Inc.
英文描述: 20-Bit Sigma-Delta Stereo ADA Circuit
中文描述: 20位Σ-Δ立體聲電路反傾銷協(xié)定
文件頁(yè)數(shù): 20/43頁(yè)
文件大?。?/td> 211K
代理商: TLC320AD75C
2–8
2.14 DAC Digital Attenuation/Soft Mute
A value selected in the internal attenuation register determines the attenuation of the digital-audio data input.
The attenuation value is 12 bits long with a valid range of hex values from 400h to 000h. A data value of 001h
corresponds to an attenuation value of –60 dB and a data value of 400h corresponds to 0 dB. The
attenuation function is nonlinear. Figure 2–9 illustrates the attenuation function in dB. The default
attenuation value is 400h (refer to the attenuator mode register for more detailed description).
Attenuation
20 log
attenuation data
1024
0
–10
–20
–30
–40
–50
–60
1024 896
768
640
512
384
256
128
0
A
Attenuation Data (decimal values)
Figure 2–9. Digital Attenuation Characteristics
The attenuation operation of the DAC has a tapered gain response. It takes time T = 1024/f
s
(sec) to reach
the actual 000H data output after an ATT = 000H data transfer from 400H data as shown in Figure 2–10.
T
T
400H
200H
Output Level (ATT)
000H
ATT = 000H
Transfer
ATT = 400H
Transfer
T = 1024/fs (sec)
(Soft Mute)
Figure 2–10. DAC Digital Attenuation Operation with Tapered Gain Response
相關(guān)PDF資料
PDF描述
TLC320AD77C 24-BIT 96 kHz STEREO AUDIO CODEC
TLC320AD80C Audio Processor Subsystem
TLC320AD81CDBT Stereo Audio Digital Equalizer DC
TLC320AD81C Stereo Audio Digital Equalizer DC
TLC339CDB LinCMOSE MICROPOWER QUAD COMPARATORS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLC320AD75CDL 制造商:Texas Instruments 功能描述:
TLC320AD77 制造商:TI 制造商全稱:Texas Instruments 功能描述:24-Bit 96 kHz Stereo Audio Codec
TLC320AD77C 制造商:TI 制造商全稱:Texas Instruments 功能描述:24-BIT 96 kHz STEREO AUDIO CODEC
TLC320AD77CDB 功能描述:接口—CODEC STEREO AUDIO ADA 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
TLC320AD77CDBG4 功能描述:接口—CODEC STEREO AUDIO ADA 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