參數(shù)資料
型號(hào)： CDB42L51
廠商： Cirrus Logic, Inc.
英文描述： Silver Mica Capacitor; Capacitance:120pF; Capacitance Tolerance:+/- 5%; Series:CDV16; Voltage Rating:1000VDC; Capacitor Dielectric Material:Mica; Termination:Radial Leaded; Lead Pitch:5.94mm; Leaded Process Compatible:Yes RoHS Compliant: Yes
中文描述： 低功耗，立體聲耳機(jī)放大器編解碼器
文件頁(yè)數(shù)： 32/83頁(yè)
文件大?。?/td> 1348K
代理商： CDB42L51
32
DS679A2
CS42L51
4.3.8
Noise Gate
The noise gate may be used to mute signal levels that fall below a programmable threshold. This prevents
the ALC from applying gain to noise. A programmable delay may be used to set the minimum time before
the noise gate attacks the signal.
*Maximum noise gate attenuation levels will depend on the gain applied in either the PGA or MIC pre-
amplifier. For example: If both +32 dB pre-amplification and +12 dB programmable gain is applied, the
maximum attenuation that the noise gate achieves will be 52 dB (-96 + 32 + 12) below full-scale.
Ramp down time to the maximum setting is affected by the SOFTx bit.
Recommended settings
: For best results, enable soft ramp for the digital attenuator. When the analog in-
puts are configured for differential signals (see
“Differential Inputs” on page 29
), enable the NG_ALL bit
to trigger the noise gate only when
both
inputs fall below the threshold.
Software
Controls:
“Noise Gate Configuration & Misc. (Address 1Fh)” on page 70
,
“ADC Control (Address 06h)” on
page 52
.
-96
-40
THRESH[2:0]
M
-52 dB
Output
(dB)
Input (dB)
NGEN=1
NGEN=0
-80 dB
-64 dB
Figure 13. Noise Gate Attenuation
相關(guān)PDF資料
PDF描述
CDB42L50 Silver Mica Capacitor; Capacitance:100pF; Capacitance Tolerance:+/- 5%; Series:CDS; Voltage Rating:300VDC; Capacitor Dielectric Material:Mica; Termination:Radial Leaded; Lead Pitch:3mm; Leaded Process Compatible:No RoHS Compliant: No
CDB43122 122dB, 24-Bit, 192kHz DAC for Digital Audio
CDB4327 Low Cost, 20-Bit, Stereo, Audio D/A Converter
CDB4328 18-Bit, Stereo D/A Converter for Digital Audio
CDB4329 20-Bit, Stereo D/A Converter for Digital Audio
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CDB42L51/FAE 制造商:Cirrus Logic 功能描述:EVAL BOARD FOR THE CS42L51 PORTABLE STEREO CODEC - Bulk
CDB42L52 功能描述:音頻 IC 開(kāi)發(fā)工具 Eval Bd LP CODEC w/classD Spkr Driver RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
CDB42L52/FAE 制造商:Cirrus Logic 功能描述:EVAL BD LOW-VOLTAGE STEREO CODEC - Bulk
CDB42L55 功能描述:音頻 IC 開(kāi)發(fā)工具 Eval Bd Ultra Low PWR Stereo Codec RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
CDB42L56 功能描述:音頻 IC 開(kāi)發(fā)工具 Eval Bd 24Bit Ultra LP Ster CD w/clH HP RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
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