Electronic Components Datasheet Search |
|
HDMP-1638 Datasheet(PDF) 4 Page - Agilent(Hewlett-Packard) |
|
HDMP-1638 Datasheet(HTML) 4 Page - Agilent(Hewlett-Packard) |
4 / 19 page 4 Symbol Parameter Units Min. Typ. Max. tsetup Setup Time nsec 1.5 thold Hold Time nsec 1.0 t_txlat[1] Transmitter Latency nsec 3.5 bits 4.4 Frame Demux and Byte Sync The FRAME DEMUX AND BYTE SYNC block is responsible for restoring the 10-bit parallel data from the high speed serial bit stream. This block is also responsible for recognizing the comma character (or a K28.5 character) of positive disparity (0011111xxx). When recognized, the FRAME DEMUX AND BYTE SYNC block works with the RX PLL/CLOCK RECOVERY block to properly align the receive byte clocks to the parallel data. When a comma character is detected and realignment of the receiver byte clocks (RBC1/RBC0) is necessary, these clocks are stretched, not slivered, to the next possible correct alignment position. These clocks will be fully aligned by the start of the second 2-byte ordered set. The second comma character received shall be aligned with the rising edge of RBC1. As per the 8B/10B encoding scheme, comma characters must not be transmitted in consecutive bytes to allow the receiver byte clocks to maintain their proper recovered frequencies. Output Drivers The OUTPUT DRIVERS present the 10-bit parallel recovered data byte properly aligned to the receive byte clocks (RBC1/RBC0), as shown in Figure 5. These output data buffers provide TTL compatible signals. Signal Detect The SIGNAL DETECT block examines the differential amplitude of the inputs ± DINB. When this input signal is too small, it outputs a logic 0 at SIG_DET (refer to SIG_DET pin definition for detection thresholds). When the signal at ± DINB is of a valid amplitude, SIG_DET is set to logic 1. Note: 1. The transmitter latency, as shown in Figure 4, is defined as the time between the latching in of the parallel data word (as triggered by the rising edge of the transmit byte clock, REFCLK) and the transmission of the first serial bit of that parallel word at either output pair (defined by the rising edge of the first bit transmitted). HDMP-1638 (Transmitter Section) Timing Characteristics TA = 0 °C to +70 °C, VCC = 3.15 V to 3.45 V |
Similar Part No. - HDMP-1638 |
|
Similar Description - HDMP-1638 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |