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)： 41/83頁(yè)
文件大?。?/td> 1348K
代理商： CDB42L51
DS679A2
41
CS42L51
4.9
Recommended Power-Down Sequence
To minimize audible pops when turning off or placing the CODEC in standby,
1.
Mute the DAC’s & ADC’s.
2.
Set the PDN bit in the power control register to ‘1’b. The CODEC will not power down until it reaches a
fully muted sate.
3.
Bring RESET low.
ADC Initialization
2048 internal
MCLK cycle delay
DAC Initialization
Software Mode
Registers setup to
desired settings.
RESET = Low
No Power
1. No audio signal
generated.
Off Mode (Power Applied)
1. No audio signal generated.
2. Control Port Registers reset
to default.
Control Port
Active
Control Port Valid
Write Seq. within
10 ms
Hardware Mode
Minimal feature
set support.
PDN bit = '1'b
Sub-Clocks Applied
1. LRCK valid.
2. SCLK valid.
3. Audio samples
processed.
Valid
MCLK/LRCK
Ratio
No
Yes
No
Yes
No
Yes
Yes
No
Normal Operation
Audio signal generated per control port or stand-
alone settings.
Analog Output Freeze
1. Aout bias = last audio sample.
2. DAC Modulators stop operation.
3. Audible pops.
ERROR: MCLK removed
PDN bit set to '1'b
(software mode only)
Standby Mode
1. No audio signal generated.
2. Control Port Registers retain
settings.
Reset Transition
1. Pops suppressed.
Power Off Transition
1. Audible pops.
ERROR: Power removed
Valid
MCLK Applied
No
20 ms delay
Charge Caps
1. VQ Charged to
quiescent voltage.
2. Filtx+ Charged.
Digital/Analog
Output Muted
50 ms delay
Charge Pump
Powered Up
Headphone Amp
Powered Up
20
μ
s delay
Headphone Amp
Powered Down
20
μ
s delay (DAC
only)
Stand-By
Transition
1. Pops suppressed.
ERROR: MCLK/LRCK ratio change
RESET = Low
Figure 23. Initialization Flow Chart
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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