參數資料
| 型號： | CS8420-DSZ |
| 廠商： | Cirrus Logic Inc |
| 文件頁數： | 76/94頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CONV S/R DGTL AUDIO 28-SOIC |
| 標準包裝： | 27 |
| 類型： | 采樣率轉換器 |
| 應用： | 數字音頻 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 28-SOIC |
| 包裝： | 管件 |
| 產品目錄頁面： | 759 (CN2011-ZH PDF) |
| 其它名稱： | 598-1729 |
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78
DS245F4
CS8420
14. EXTERNAL AES3/SPDIF/IEC60958 TRANSMITTER AND RECEIVER
COMPONENTS
This section details the external components required to interface the AES3 transmitter and receiver to cables and
fiber-optic components.
14.1
AES3 Transmitter External Components
The output drivers on the CS8420 are designed to drive both the professional and consumer interfaces. The
AES3 specification for professional/broadcast use calls for a 110
Ω source impedance and a balanced drive
capability. Since the transmitter output impedance is very low, a 110
Ω resistor should be placed in series
with one of the transmit pins. The specifications call for a balanced output drive of 2-7 volts peak-to-peak
into a 110
Ω load with no cable attached. Using the circuit in Figure 30, the output of the transformer is short-
circuit protected, has the proper source impedance, and provides a 5 volts peak-to-peak signal into a 110
Ω
load. Lastly, the two output pins should be attached to an XLR connector with male pins and a female shell,
and with pin 1 of the connector grounded.
In the case of consumer use, the IEC60958 specifications call for an unbalanced drive circuit with an output
impedance of 75
Ω and a output drive level of 0.5 V peak-to-peak ±20% when measured across a 75 Ω load
using no cable. The circuit shown in Figure 31 only uses the TXP pin and provides the proper output imped-
ance and drive level using standard 1% resistors. The connector for a consumer application would be an
RCA phono socket. This circuit is also short circuit protected.
110-(R
TXP+RTXN)
TXP
TXN
XLR
1
CS8420
Figure 30. Professional Output Circuit
374-R
TXP
90.9
Ω
TXP
TXN
RCA
Phono
CS8420
Figure 31. Consumer Output Circuit
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相關代理商/技術參數 |
參數描述 |
|---|---|
| CS8420-DSZR | 功能描述:音頻 DSP IC Digital Audio Sample Rate Convertr RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube |
| CS8421 | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:32-bit, 192-kHz Asynchronous Sample Rate Converter |
| CS8421_06 | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:32-bit, 192 kHz Asynchronous Sample Rate Converter |
| CS8421_09 | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:32-bit, 192 kHz Asynchronous Sample Rate Converter |
| CS8421_10 | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:32-bit, 192-kHz Asynchronous Sample Rate Converter |
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