- 您现在的位置：买卖IC网 > Sheet目录1204 > CRD42L52 (Cirrus Logic Inc)REFERENCE DESIGN FOR CS42L52
CRD42L52
1.5
1.6
1.7
1.8
1.9
Oscillator (Y1)
The on-board oscillator provides the system master clock when the digital audio receiver is powered down
or when a receiver error occurs in the CS8416. Internal circuitry in the CS8416 automatically sets the oscil-
lator clock as the new system clock whenever a receiver error is detected. This feature allows users to op-
erate the boards without having a S/PDIF input fed to the board at all times.
CS42L52 Audio CODEC (U1)
A complete description of the CS42L52 ( Figure 21 on page 20 ) is included in the CS42L52 product data
sheet. The CS42L52 is configured using the Windows-compatible Cirrus FlexGUI software provided. The
I2C control port interface on the CS42L52 can be used for register manipulation and is controlled by the
microcontroller on the CDB42LDB1 driver board.
Analog Input
A 1/8” stereo jack can be used to supply stereo line-level analog inputs to the CS42L52 up to a full-scale
value of 2 Vrms. An AC-coupled passive filter and a voltage divider scale down the signal before sending it
to the CS42L52 to prevent the signal from clipping.
The CRD42L52 is routed to only allow analog inputs on input channel 1 of the CS42L52. Analog Input Chan-
nels 2, 3 and 4 and Microphone Input Channels 1 and 2 are not connected.
Analog Outputs
The analog output from the CS42L52’s ground-centered headphone amplifier can be monitored on the 1/8”
stereo jack on the CRD42L52. Alternatively, one can also monitor the differential stereo PWM speaker out-
put on the CS42L52 by using the differential speaker terminals J3 and J4.
Layout
The CS42L52 requires only a minimal set of components to achieve specified performance results. Its inte-
grated ground-centered amplifier eliminates the need for bulky DC-blocking capacitors and only requires
two tiny ceramic capacitors for the charge pump. Additional components include load-stabilization circuitry
and power supply decoupling. See the CS42L52 data sheet for further details.
Figure 20 on page 19 provides an overview of the connections to the CS42L52. Figure 24 on page 23 and
Figure 25 on page 23 show the component placement. Figure 26 on page 23 shows the top layout; Figure
27 on page 23 and Figure 28 on page 23 show the inner layers, and Figure 29 on page 23 shows the bottom
layout. The decoupling capacitors are located as close to the CS42L52 as possible. Extensive use of ground
plane fill in the reference design yields large reductions in radiated noise.
DS680RD1
5
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
CRDSB30WX2
REF BD SPEAKERBAR MSA/DSP PARTS
CS-DF-MJB
RF CONN 2.4(IW 1501)STR JACK
CS-DM-MJB
RF CONN 2.4(IW 1501)STR PLUG
CS-FF-MJB
RF CONN 2.92(K)(IW 1501)STR JACK
CS-FF-MSB
RFCON 2.92(K)SEMF HP160 STR JACK
CS-FF-MSR
RF CONN 2.92(K) (.085) STR JACK
CS-FFB-MSR
RF CONN 2.92(K) (.085) STR BULK
CS-FM-MHA
RFCON 2.92(K)(HARB LL142)STR PLG
相关代理商/技术参数
CRD4412
制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:30 W Digital TV Amplifier with Integrated ADC
CRD4412A
功能描述:音频 IC 开发工具 EvalBd 30W Qd Hlf- Brdg Dig Amp Pwr Stg RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V
CRD-4412A
制造商:Cirrus Logic 功能描述:Digital Amplifier Evaluation B
CRD44130-FB
制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:60 W Quad Half-Bridge Digital Amplifier Power Stage
CRD-44130-MIC
制造商:Cirrus Logic 功能描述:
CRD44130-MIC
功能描述:音频 IC 开发工具 Eval Bd Quad Digital Amp PS
RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V
CRD44140-FB
制造商:Cirrus Logic 功能描述:REFERENCE DESIGN FOR CS44140 - Rail/Tube
CRD44150-FB
制造商:Cirrus Logic 功能描述:REFERENCE DESIGN FOR CS44150 - Rail/Tube