參數(shù)資料
型號： HDM8513AT
廠商： Hynix Semiconductor Inc.
英文描述： Darlington Bipolar Transistor; Power Dissipation:175W; Package/Case:TO-3; Mounting Type:Through Hole; Current Rating:20A; Voltage Rating:500V
中文描述： 的DVB /決策支持系統(tǒng)兼容接收器
文件頁數(shù)： 37/67頁
文件大?。?/td> 261K
代理商： HDM8513AT
37
DATA_CLK
The DATA_CLK is used to latch data and control signal of transport
stream. The data and control signals can be programmed to be
latched either at positive or negative edge of DATA_CLK. This signal is
used in conjunction with DATA_VALID to transfer data from the
HDM8513A. The DATA_CLK will continue to toggle during the 16
bytes that the DATA_VALID signal indicates that no data is available
(see figure 9 and 10).
When this signal is true, data is valid. This signal is not true during
the time the 16 bytes of redundancy information is transmitted for the
Reed Solomon decoder.
This signal is true at the first byte of a block of 188/144 bytes.
This signal is used to transfer data from the HDM8513A to an MPEG
decoder. This signal goes from low to high when a new byte of a 188
/144byte MPEG2 data stream block is available. This signal is
inactive during the time the 16 redundancy bytes are transferred.
This signal goes true when the Reed Solomon decoder detects that an
uncorrectable number of errors have occurred. The error flag in the
MPEG2 output stream is also set when this flag goes high.
This one bit output provides a measure of the external analog gain
required for optimizing the signal applied to the analog to digital
converters. This signal must be filtered, then applied to the analog
gain control.
This is a buffered clock output signal which may be used to drive other
devices with the same clock which drives the HDM8513A.
This signal goes true when the QPSK demodulator has achieved
phase lock.
This signal goes true when the Viterbi decoder has achieved node
synchronization.
This signal goes true when the output data is valid and all
synchronization functions have been performed.
This signal, used for test purposes, goes true for a duration of one
clock cycle for each received symbol. For symbol rates equal or
greater than half the clock frequency, this signal at times may remain
high for two successive clock cycles to indicate that two symbols have
occurred.
The serial output of the Viterbi Decoder is provided on this pin. The
information rate at this point is less than the rate of the input clock
( less than 60Mbps if a 60MHz clock is employed). As long as valid
convolutional encoding is employed, there is no constraint that the
input signal adheres to MPEG2 format. This data is tapped priod to
the polarity correction circuitry, so the data at this point may be
inverted.
DATA_VALID
FRAME_SYNC
DATA_STB
FRAME_ERROR
WB_AGC
CLOCK
QPSK_LOCK
VB_NODESYNC
LOCK
SYMBOL_CLOCK
VB_DATA
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HDM8515 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:DVB/DSS Compliant Receiver
HDM8515P 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:DVB/DSS Compliant Receiver
HDM9010 制造商:SHOULDER 制造商全稱:SHOULDER 功能描述:Frequency Synthesizer
HDM9020 制造商:SHOULDER 制造商全稱:SHOULDER 功能描述:Frequency Synthesizer
HDM9030 制造商:SHOULDER 制造商全稱:SHOULDER 功能描述:Frequency Synthesizer
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