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參數資料
型號: UDA1325
廠商: NXP Semiconductors N.V.
元件分類: Codec
英文描述: Universal Serial Bus USB CODEC
中文描述: 通用串行總線解碼器
文件頁數: 21/52頁
文件大小: 310K
代理商: UDA1325
1999 May 10
21
Philips Semiconductors
Preliminary specification
Universal Serial Bus (USB) CODEC
UDA1325
DSP extension port for enhanced playback audio processing
An external DSP can be used for adding extra sound processing features via the I
2
S inputs and outputs of the digital I/O
module. The UDA1325 supports the standard I
2
S-bus data protocol and the LSB-justified serial data input format with
word lengths of 16, 18 and 20 bits. Using the 4-pin digital I/O option the UDA1325 device acts as a master, controlling
the BCKO and WSO signals. Using the 6-pin digital I/O option GP2, GP3 and GP4 are output pins (master) and GP0,
GP1 and GP5 are input pins (slave).
The period of the WSO signal is determined by the number of samples in the 1 ms frame of the USB. This implies that
the WSO signal does not have a constant time period, but is jittery.
The characteristic timing of the I
2
S-bus signals is illustrated in Figs 5 and 6.
Fig.5 Timing of digital I/O input signals.
handbook, full pagewidth
MGK003
WS
RIGHT
LSB
MSB
LEFT
BCK
DATA
tf
tr
th;WS
ts;WS
tBCK(H)
tBCK(L)
Tcy
ts;DAT
th;DAT
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UDA1325H Universal Serial Bus USB CODEC
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相關代理商/技術參數
參數描述
UDA1325H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus USB CODEC
UDA1325PS 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus USB CODEC
UDA1328 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multi-channel filter DAC
UDA1328T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multi-channel filter DAC
UDA1330A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-cost stereo filter DAC
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