參數(shù)資料
型號: AK4101VQ
英文描述: Consumer IC
中文描述: 消費性IC
文件頁數(shù): 19/28頁
文件大?。?/td> 330K
代理商: AK4101VQ
ASAHI KASEI
[AK4101]
MS0076-E-01
2001/12
- 19 -
Line Drivers
There are four RS422 line drivers on chip. The AES3 specification states that the line driver shall have a balanced
output with an internal impedance of 110 ohms
±
20% and also requires a balanced output drive capability of 2 to 7 volts
peak-to-peak into 110 ohm load. The internal impedance of the RS422 driver along with a series resistors of 56 ohms
realizes this requirement. For consumer use(S/PDIF), the specifications require an output impedance of 75 ohms
±
20%
and a driver level of 0.5
±
20% volts peak to peak. A combination of 330 ohms in parallel with 100 ohms realizes this
requirement. The outputs can be set to ground by resetting the device or a software mute.
56
0.1u
TXP
TXN
XLR Connector
Transformer
Figure 15. Professional Output Driver Circuit
330
0.1u
TXP
TXN
RCA Phono
Connector
Transformer
100
Figure 16. Consumer Output Driver Circuit
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