参数资料
型号: CDB8420
厂商: Cirrus Logic Inc
文件页数: 79/94页
文件大小: 0K
描述: EVALUATION BOARD FOR CS8420
标准包装: 1
主要目的: 音频,采样率转换器
嵌入式: 是,MCU,8 位
已用 IC / 零件: CS8420
主要属性: 带数字音频发射器和接收器的采样率转换器
次要属性: 44.1、48、96 kHz 输出采样率,AES/EBU,S/PDIF,EIAJ-340,GUI
已供物品:
相关产品: 598-1125-5-ND - IC SAMPLE RATE CONVERTER 28SOIC
其它名称: 598-1782
80
DS245F4
CS8420
connection. Generally, it may be a good idea to provide the option of grounding or capacitively coupling the
shield to the chassis.
In the case of the consumer interface, the standards call for an unbalanced circuit having a receiver imped-
ance of 75
Ω ±5%. The connector for the consumer interface is an RCA phono socket. The receiver circuit
for the consumer interface is shown in Figure 35.
The circuit shown in Figure 36 may be used when external RS422 receivers, optical receivers or other
TTL/CMOS logic outputs drive the CS8420 receiver section.
14.3
Isolating Transformer Requirements
The transformer should be capable of operating from 1.5 to 14 MHz, which is equivalent to an audio data
rate of 25 kHz to 108 kHz after bi-phase mark encoding. Transformers provide isolation from ground loops,
60 Hz noise, and common mode noise and interference. One of the important considerations when choos-
ing transformers is minimizing shunt capacitance between primary and secondary windings. The higher the
shunt capacitance, the lower the isolation between primary and secondary, and the more coupling of high
frequency energy. This energy appears in the form of common mode noise on the receive side ground and
has the potential to degrade analog performance. Therefore, for best performance, shielded transformers
optimized for minimum shunt capacitance should be used. See Application Note 134 for a selection of man-
ufacturers and their part numbers.
RCA Phono
RXP
RXN
CS8420
Coax
75
Ω
75
Ω
0.01 F
μ
0.01 F
μ
Figure 35. Consumer Input Circuit
RXP
RXN
CS8420
0.01 F
μ
0.01 F
μ
TTL/CMOS
Gate
Figure 36. TTL/CMOS Input Circuit
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相关代理商/技术参数
参数描述
CDB8421 功能描述:音频 IC 开发工具 2-Ch 32-Bit 192kHz sample rate converte 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
CDB8422 功能描述:界面开发工具 Eval Bd 192kHz SRC S/PDIF Receiver RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V
CDB8427 功能描述:音频 IC 开发工具 Eval Bd 96kHz Dig. Audio Transcvr 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
CDB8952 制造商:Cirrus Logic 功能描述:NOT RECOMMENDED FOR NEW DESIGNS - USE CDB8952T - Bulk 制造商:Cirrus Logic 功能描述:Tools Development kit Kit Con
CDB8952T 功能描述:以太网开发工具 Eval Bd 100BASE-TX/ 10BASE-T Transceiver RoHS:否 制造商:Micrel 产品:Evaluation Boards 类型:Ethernet Transceivers 工具用于评估:KSZ8873RLL 接口类型:RMII 工作电源电压: