參數(shù)資料
型號： CDB4270
廠商： Cirrus Logic, Inc.
元件分類： Codec
英文描述： 24-Bit, 192 kHz Stereo Audio CODEC
中文描述： 24位192千赫立體聲音頻CODEC
文件頁數(shù)： 24/48頁
文件大?。?/td> 730K
代理商： CDB4270
24
DS686A1
CS4270
5.1.7 Mode Selection & De-Emphasis
The sample rate, Fs, can be adjusted from 4 kHz to 216 kHz and De-emphasis, optimized for 44.1 kHz,
is available in Single-Speed Mode. In Stand-Alone Master Mode, the CS4270 must be set to the proper
mode via the mode pins, M1 and M0. In Slave Mode, the CS4270 auto-detects Speed Mode and the M0
pin becomes De-emphasis select. Stand-alone definitions of the mode pins are shown in
Table 3
.
5.1.8 Serial Audio Interface Format Selection
Either I2S or Left-Justified serial audio data format may be selected in Stand-Alone Mode. The selection
will affect both the input and output format. Placing a 10 k
pull-up to VD on the I2S/LJ pin will select the
I2S format, while placing a 10 k
pull-down to DGND on the I2S/LJ pin will select the left justified format.
5.2
Control Port Mode
5.2.1 Recommended Power-Up Sequence - Access to Control Port Mode
1.
Pull RST low until the power supply, MCLK, and LRCK are stable.
2.
Release RST. The control port will be accessible.
3.
Initiate a SPI or I2C transaction as described in
Section 6.1
or
Section 6.2
, respectively.
5.2.2 Master / Slave Mode Selection
The CS4270 supports operation in either Master Mode or Slave Mode.
In Master Mode, LRCK and SCLK are outputs and are synchronously generated on-chip. LRCK is equal
to Fs and SCLK is equal to 64x Fs.
In Slave Mode, LRCK and SCLK are inputs, requiring external generation that is synchronous to MCLK.
It is recommended that SCLK be 48x or 64x Fs to maximize system performance.
Configuration of clock ratios in each of these modes will be outlined in the
Table 10
and
Table 9
.
In Control Port Mode the CS4270 will default to Slave Mode. The user may change this default setting by
changing the status of the M/S bits in the Functional Control Register (03h).
Mode 1
0
0
1
1
Mode 0
0
1
0
1
Mode
Sample Rate (Fs)
4 kHz - 54 kHz
4 kHz - 54 kHz
50 kHz - 108 kHz
100 kHz - 216 kHz
De-Emphasis
Off
44.1 kHz
Off
Off
Single-Speed Mode
Single-Speed Mode
Double-Speed Mode
Quad-Speed Mode
Table 3. CS4270 Stand-Alone Mode Control
相關(guān)PDF資料
PDF描述
CDB4271 24-Bit, 192 kHz Stereo Audio CODEC
CDB4272 24-Bit, 192 kHz Stereo Audio CODEC
CDB42L51 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
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CDB4271 功能描述:音頻 IC 開發(fā)工具 Eval Bd CS4271 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
CDB4272 功能描述:音頻 IC 開發(fā)工具 Eval Bd CS4272 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
CDB4299 功能描述:音頻 IC 開發(fā)工具 Eval Bd AC’97 CODEC w/SRC 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
CDB42L50 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:Low Voltage, Stereo CODEC with headphone Amp
CDB42L51 功能描述:音頻 IC 開發(fā)工具 Eval Bd Low-volt 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
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