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參數(shù)資料
| 型號(hào)： | ISL36111DRZ-EVALZ |
| 廠商： | Intersil |
| 文件頁(yè)數(shù)： | 6/9頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | EVAL BOARD FOR ISL36111DRZ |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | * |
ISL36111
6
FN6974.2
July 19, 2012
Line Silence/Quiescent Mode
Line silence is commonly broken by the limiting amplification in
other equalizers. This disruption can be detrimental in many
systems that rely on line silence as part of the protocol. The
ISL36111 contains special lane management capabilities to
detect and preserve periods of line silence while still providing
the fidelity-enhancing benefits of limiting amplification during
active data transmission. Line silence is detected by measuring
the amplitude of the input signal and comparing that to a
threshold set by the voltage at the DT pin. When the amplitude
falls below the threshold, the output driver stage is muted.
LOS Bar Indicator
Pin 4 (LOSB) is used to output the state of the muting circuitry to
serve as a loss of signal indicator for the device. This signal is
directly derived from the muting signal output by the detection
threshold / signal detector comparator. The LOSB signal goes
LOW when the signal detector output is below the externally
controlled detection threshold and HIGH when the detector
output goes above this threshold. This feature is meant to be
used in optical systems (e.g. SFP+) where there are no quiescent
or electrical-idle states. In these cases, the detection threshold is
used to determine the sensitivity of the LOSB indicator. Figure 7
shows the schematic of the LOSB equivalent output structure.
Detection Thereshold (DT) Pin
Functionality
The ISL36111 is capable of maintaining periods of line silence by
monitoring the channel for loss of signal (LOS) conditions and
subsequently muting the output driver when such a condition is
detected. A reference voltage applied to the detection threshold
(DT) pin is used to set the LOS threshold of the internal signal
detection circuitry. The DT voltage is set with an external pull-up
resistor, RDT. For typical applications, a 30kΩ resistor is
recommended for channels with loss greater than 12dB at 5GHz,
and a 1.8k
Ω resistor is recommended for lower loss channels.
Other values of the resistor may also be applicable; therefore DT
settings should be verified on an application-specific basis.
FIGURE 6. CML OUTPUT EQUIVALENT CIRCUIT FOR THE
ISL36111
VDD
50
OUT [P]
OUT [N]
FIGURE 7. LOSB EQUIVALENT OUTPUT STRUCTURE
VDD
LOSB
11k
Internal LOS
Indicator
Ω
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| ISL36111DRZ-T7 | 功能描述:IC EQUALIZER REC 11.1GBPS 16QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:QLx™ 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁(yè)面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
| ISL36111DRZ-TS | 功能描述:IC EQUALIZER REC 11.1GBPS 16QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:QLx™ 標(biāo)準(zhǔn)包裝:3,000 系列:- 應(yīng)用:PDA，便攜式音頻/視頻，智能電話 接口:I²C，2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) 安裝類型:表面貼裝 產(chǎn)品目錄頁(yè)面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2 |
| ISL36356A-APDK | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:PRISM 11Mbps Wireless Local Area Network Access Point |
| ISL36356A-APDK-EVAL | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:PRISM 11Mbps Wireless Local Area Network Access Point |
| ISL36411 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Quad Lane Extender |
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