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参数资料
| 型号： | QLX4600LIQT7 |
| 厂商： | Intersil |
| 文件页数： | 4/23页 |
| 文件大小： | 0K |
| 描述： | IC EQUALIZER REC 6.25GBPS 46QFN |
| 标准包装： | 1 |
| 系列： | QLx™ |
| 应用： | 铜电缆模块 |
| 电源电压： | 1.1 V ~ 1.3 V |
| 封装/外壳： | 46-WFQFN 裸露焊盘 |
| 供应商设备封装： | 46-TQFN |
| 包装： | 标准包装 |
| 安装类型： | 表面贴装 |
| 其它名称： | QLX4600LIQT7-DKR QLX4600LIQT7-DKR-ND QLX4600LIQT7DKR |
12
FN6981.1
November 19, 2009
Operation
The QLx4600-SL30 is an advanced quad lane-extender
for high-speed interconnects. A functional diagram of one
of the four channels in the QLx4600-SL30 is shown in
Figure 22. In addition to a robust equalization filter to
compensate for channel loss and restore signal fidelity,
the QLx4600-SL30 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 22, the core of each high-speed
signal path in the QLx4600-SL30 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.
Individually Adjustable Equalization Boost
Each channel in the QLx4600-SL30 features an
independently settable equalizer for custom signal
restoration. Each equalizer can be set to one of 32 levels
of compensation when the serial bus is used to program
the boost level and one of 18 compensation levels when
the CP[k] pins are used to set the level. The equalizer
transfer functions for a subset of these compensation
levels are plotted in Figure 23. 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 2.5Gb/s to
6.25Gb/s. Because the boost level is externally set rather
than internally adapted, the QLx4600-SL30 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 patterns that will cause the
QLx4600-SL30 to move to an incorrect boost level.
The Applications Information section beginning on
page 13 details how to set the boost level by both the
CP-pin voltage approach and the serial programming
approach.
CML Input and Output Buffers
The input and output buffers for the high-speed data
channels in the QLx4600-SL30 are implemented using
CML. Equivalent input and output circuits are shown in
Adjustable
Equalizer
Signal
Detector
-
+
Detection
Threshold
LOS[k]
OUT[k] [P,N]
Limiting
Amplifier
IN[k] [P,N]
EQ Setting
(CP[k] / DI)
FIGURE 22. FUNCTIONAL DIAGRAM OF A SINGLE CHANNEL WITHIN THE QLx4600-SL30
FIGURE 23. EQUALIZER TRANSFER FUNCTIONS FOR
SETTINGS 0, 5, 10, 15, 20, 25, AND 31 IN
THE QLx4600-SL30
QLx4600-SL30
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相关代理商/技术参数 |
参数描述 |
|---|---|
| QLX4600MIBQ15 | 制造商:Intersil Corporation 功能描述:IC LINEAR |
| QLX4600-S30 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Quad Lane Extender |
| QLX4600SIQSR | 功能描述:接口 - 专用 6 GBS QD CH LANE EXTENDER RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| QLX4600SIQT7 | 功能描述:接口 - 专用 6 GBS QD CH LANE EXTENDER RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| QLX4600-SL30 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Quad Lane Extender |
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