Os motores de busca de Datasheet de Componentes eletrônicos |
|
ISL36411 Folha de dados(PDF) 7 Page - Intersil Corporation |
|
ISL36411 Folha de dados(HTML) 7 Page - Intersil Corporation |
7 / 12 page ISL36411 7 FN6965.1 March 25, 2010 Operation The ISL36411 is an advanced quad lane-extender for high-speed interconnects. A functional diagram of one of the four channels in the ISL36411 is shown in Figure 3. In addition to a robust equalization filter to compensate for channel loss and restore signal fidelity, the ISL36411 contains unique integrated features to preserve special signaling protocols typically broken by other equalizers. The signal detect function is used to mute the channel output when the equalized signal falls below the level determined by the Detection Threshold (DT) pin voltage. This function is intended to preserve periods of line silence (“quiescent state” in InfiniBand contexts). Furthermore, the output of the signal detect / DT comparator is used as a loss of signal (LOS) indicator to indicate the absence of a received signal. As illustrated in Figure 3, the core of each high-speed signal path in the ISL36411 is a sophisticated equalizer followed by a limiting amplifier. The equalizer compensates for skin loss, dielectric loss, and impedance discontinuities in the transmission channel. Each equalizer is followed by a limiting amplification stage that provides a clean output signal with full amplitude swing and fast rise-fall times for reliable signal decoding in a subsequent receiver. Adjustable Equalization Boost Each channel in the ISL36411 features a settable (in pairs) equalizer for custom signal restoration. The flexibility of this adjustable compensation architecture enables signal fidelity to be optimized on a channel-by-channel basis, providing support for a wide variety of channel characteristics and data rates ranging from 2.5Gbps to 11.1Gbps. Because the boost level is externally set rather than internally adapted, the ISL36411 provides reliable communication from the very first bit transmitted. There is no time needed for adaptation and control loop convergence. Furthermore, there are no pathological data pat-terns that will cause the ISL36411 to move to an incorrect boost level. Control Pin Boost Setting The connectivity of the CP pins is used to determine the boost level of each pair of channels. CP1 controls the boost of channels 1 and 2, CP2 controls the boosts of channels 3 and 4. Table 1 defines the mapping from the 2-bit CP word to the 8 possible boost levels. FIGURE 3. FUNCTIONAL DIAGRAM OF A SINGLE CHANNEL WITHIN THE ISL36411 Signal Detector IN[P] IN[N] DT LOSB OUT[N] OUT[P] Adjustable Equalizer Limiting Amplifier Output Driver TABLE 1. MAPPING BETWEEN BOOST LEVEL AND CP-PIN CONNECTIVITY CPA CPB BOOST LEVEL Float Float 0 Float GND 1 GND VDD 2 Float VDD 3 VDD Float 4 GND Float 5 GND GND 6 VDD GND 7 VDD VDD 8 |
Nº de peça semelhante - ISL36411 |
|
Descrição semelhante - ISL36411 |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes 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 |