參數(shù)資料
型號: CDB42438
廠商: Cirrus Logic, Inc.
元件分類: Codec
英文描述: 108 dB, 192 kHz 4-in, 6-out TDM CODEC
中文描述: 108分貝192千赫4 - 6 -出的TDM編解碼器
文件頁數(shù): 30/62頁
文件大?。?/td> 1004K
代理商: CDB42438
30
DS673PP2
5.3.3
Hardware Mode
DAC Volume Control and Mute are not accessible in Hardware Mode.
Software Mode
Each DAC’s output level is controlled via the Volume Control registers operating over the range
of 0 to -127.5 dB attenuation with 0.5 dB resolution. See “AOUTX Volume Control (addresses
08h-0D)” on page 45. Volume control changes are programmable to ramp in increments of
0.125 dB at the rate controlled by the SZC[1:0] bits in the Digital Volume Control register. See
“Transition Control (address 06h)” on page 44.
Each output can be independently muted via mute control bits in the register “DAC Channel
Mute (address 07h)” on page 45. When enabled, each AOUTx_MUTE bit attenuates the corre-
sponding DAC to its maximum value (-127.5 dB). When the AOUTx_MUTE bit is disabled, the
corresponding DAC returns to the attenuation level set in the Volume Control register. The at-
tenuation is ramped up and down at the rate specified by the SZC[1:0] bits.
Digital Volume Control
5.3.4
The CS42432 includes on-chip digital de-emphasis optimized for a sample rate of 44.1 kHz. The
filter response is shown in Figure 12. The de-emphasis feature is included to accommodate au-
dio recordings that utilize 50/15
μ
s pre-emphasis equalization as a means of noise reduction.
De-Emphasis Filter
AOUTx+
AOUTx-
Full-Scale
Differential
Output Level =
(AOUTx+) - (AOUTx-) = 6.5 V
PP
= 2.3 V
RMS
4.125 V
2.5 V
0.875 V
5.0 V
4.125 V
2.5 V
0.875 V
VA
Figure 11. Full-Scale Output
相關(guān)PDF資料
PDF描述
CDB42448 108 dB, 192 kHz 6-in, 8-out CODEC
CDB4245 105 dB, 24-Bit, 192 kHz Streo Sudio CODEC
CDB42518 110 dB, 192 kHz 6-Ch Codec with S/PDIF Receiver
CDB42528 114 dB, 192 kHz 6-Ch Codec with S/PDIF Receiver
CDB4270 24-Bit, 192 kHz Stereo Audio CODEC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CDB4244 制造商:Cirrus Logic 功能描述:EVAL BD 4 INPUT/ 4 OUTPUT CODEC - Boxed Product (Development Kits) 制造商:Cirrus Logic 功能描述:Eval Board
CDB42448 功能描述:音頻 IC 開發(fā)工具 Eval Bd 108dB 8-Ch Mult-Ch CODEC RoHS:否 制造商:Texas Instruments 產(chǎn)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
CDB4245 功能描述:音頻 IC 開發(fā)工具 Eval Bd 192kHz CODEC w/PGA & Input Mux RoHS:否 制造商:Texas Instruments 產(chǎn)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
CDB42518 功能描述:音頻 IC 開發(fā)工具 Eval Bd RoHS:否 制造商:Texas Instruments 產(chǎn)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
CDB42528 功能描述:音頻 IC 開發(fā)工具 Eval Bd RoHS:否 制造商:Texas Instruments 產(chǎn)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