參數(shù)資料
型號(hào)： I5216SI
廠商： WINBOND ELECTRONICS CORP
元件分類： 音頻合成
英文描述： 8 TO 16 MINUTE VOICE RECORD/PLAYBACK SYSTEM WITH INTEGRATED CODEC
中文描述： 960 SEC, SPEECH SYNTHESIZER WITH RCDG, PDSO28
封裝： 0.300 INCH, PLASTIC, SOIC-28
文件頁(yè)數(shù)： 75/83頁(yè)
文件大?。?/td> 758K
代理商： I5216SI
I5216 SERIES
Advanced Information
PRELIMINARY
Publication Release Date: November 30, 2001
- 75
Revision A1
WORD SELECT
The word select line indicates the channel being transmitted:
WS = 0; channel 1 (left)
WS = 1; channel 2 (right)
WS may change either on a trailing or leading edge of the serial clock, but it doesn’t need to be
symmetrical. In the slave, this signal is latched on the leading edge of the clock signal. The WS line
changes one clock period before the MSB is transmitted. This allows the slave transmitter to derive
synchronous timing of the serial data that will be set up for transmission. Furthermore, it enables the
receiver to store the previous word and clear the input for the next word (see figure
Timing for I
2
S
Transmitter
on previous page
.
)
TIMING
In the I
2
S format, any device can act as the system master by providing the necessary clock signals. A
slave will usually derive its internal clock signal from an external clock input. This means, taking into
account the propagation delays between master clock and the data and/or word-select signals, that the
total delay is simply the sum of:
the delay between the external (master) clock and the slave’s
internal clock; and
the delay between the internal clock and the data and/or
word-select signals.
For data and word-select inputs, the external to internal clock delay is of no consequence because it
only lengthens the effective set-up time (see figure
Timing for I
2
S Transmitter
on previous page.) The
major part of the time margin is to accommodate the difference between the propagation delay of the
transmitter, and the time required to set up the receiver.
All timing requirements are specified relative to the clock period or to the minimum allowed clock
period of a device. This means that higher data rates can be used in the future.
Timing for I
2
S Receiver
Note that the specifications are defined by the transmitter speed. The specification of the receiver has to be able
to match the performance of the transmitter.
T = clock period
T
R
= minimum allowed clock period for transmitter
T > T
R
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
I5216X 制造商:WINBOND 制造商全稱:Winbond 功能描述:8 TO 16 MINUTE VOICE RECORD/PLAYBACK SYSTEM WITH INTEGRATED CODEC
I521-7J3-20.000 制造商:ILSI 制造商全稱:ILSI America LLC 功能描述:Surface Mount Oscillator, TCXO, TCVCXO Metal Package, 11 mm x 18 mm
I521-7J5-20.000 制造商:ILSI 制造商全稱:ILSI America LLC 功能描述:Surface Mount Oscillator, TCXO, TCVCXO Metal Package, 11 mm x 18 mm
I521-7O3-20.000 制造商:ILSI 制造商全稱:ILSI America LLC 功能描述:Surface Mount Oscillator, TCXO, TCVCXO Metal Package, 11 mm x 18 mm
I521-7O5-20.000 制造商:ILSI 制造商全稱:ILSI America LLC 功能描述:Surface Mount Oscillator, TCXO, TCVCXO Metal Package, 11 mm x 18 mm
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