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| 型号： | ISL36111DRZ-T7 |
| 厂商： | Intersil |
| 文件页数： | 6/9页 |
| 文件大小： | 0K |
| 描述： | IC EQUALIZER REC 11.1GBPS 16QFN |
| 标准包装： | 1 |
| 系列： | QLx™ |
| 应用： | 数据传输 |
| 电源电压： | 1.1 V ~ 1.3 V |
| 封装/外壳： | 16-VFQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN-EP（3x3） |
| 包装： | 标准包装 |
| 安装类型： | 表面贴装 |
| 产品目录页面： | 1235 (CN2011-ZH PDF) |
| 其它名称： | ISL36111DRZ-T7DKR QLX111RIQT7-DKR QLX111RIQT7-DKR-ND |
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL36111DRZ-TS | 功能描述:IC EQUALIZER REC 11.1GBPS 16QFN RoHS:是 类别:集成电路 (IC) >> 接口 - 专用 系列:QLx™ 标准包装:3,000 系列:- 应用:PDA，便携式音频/视频，智能电话 接口:I²C，2 线串口 电源电压:1.65 V ~ 3.6 V 封装/外壳:24-WQFN 裸露焊盘 供应商设备封装:24-QFN 裸露焊盘（4x4） 包装:带卷 (TR) 安装类型:表面贴装 产品目录页面:1015 (CN2011-ZH PDF) 其它名称:296-25223-2 |
| ISL36356A-APDK | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:PRISM 11Mbps Wireless Local Area Network Access Point |
| ISL36356A-APDK-EVAL | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:PRISM 11Mbps Wireless Local Area Network Access Point |
| ISL36411 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Quad Lane Extender |
| ISL36411DRZ-EVALZ | 功能描述:EVAL BOARD FOR ISL36411DRZ RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:* 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板 |
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