參數(shù)資料
型號: CS8420-DSZ
廠商: Cirrus Logic Inc
文件頁數(shù): 50/94頁
文件大小: 0K
描述: IC CONV S/R DGTL AUDIO 28-SOIC
標(biāo)準(zhǔn)包裝: 27
類型: 采樣率轉(zhuǎn)換器
應(yīng)用: 數(shù)字音頻
安裝類型: 表面貼裝
封裝/外殼: 28-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 28-SOIC
包裝: 管件
產(chǎn)品目錄頁面: 759 (CN2011-ZH PDF)
其它名稱: 598-1729
54
DS245F4
CS8420
Miscellaneous Pins:
U - User Data
The U pin may optionally be used to input User data for transmission by the AES3 transmitter (see Figure 20 for
timing information). Alternatively, the U pin may be set to output User data from the AES3 receiver (see Figure 19
for timing information). If not driven, a 47 k
Ω pull-down resistor is recommended for the U pin since the default state
of the UD direction bit sets the U pin as an input. The pull-down resistor ensures that the transmitted user data will
be zero. If the U pin is always set to be an output, thereby causing the U bit manager to be the source of the U data,
the resistor is not necessary. The U pin should not be tied directly to ground in case it is programmed to be an output
and subsequently tries to output a logic high. This situation may affect the long-term reliability of the device. If the U
pin is driven by a logic level output, a 100
Ω series resistor is recommended.
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