FN6981.1 November 19, 2009 Operation The QLx4600-SL30 is an advanced quad lane-extender for high-speed interconnects. A functional diagram of o" />
參數(shù)資料
型號: QLX4600LIQSR
廠商: Intersil
文件頁數(shù): 4/23頁
文件大小: 0K
描述: IC EQUALIZER REC 6.25GBPS 46QFN
標(biāo)準(zhǔn)包裝: 100
系列: QLx™
應(yīng)用: 銅電纜模塊
電源電壓: 1.1 V ~ 1.3 V
封裝/外殼: 46-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 46-TQFN
包裝: 帶卷 (TR)
安裝類型: 表面貼裝
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
Figures 24 and 25, respectively.
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
相關(guān)PDF資料
PDF描述
QLX4600SIQSR IC EQUALIZER REC 6.25GBPS 46QFN
R5F100GEAFB#V0 MCU 16BIT 64KB FLASH 48LQFP
R5F2135CMNFP#V0 IC MICROCONTROLLER
R5F562N8ADBG#U0 MCU 32BIT FLASH 512KROM 176LFBGA
R5F5630ADDFB#V0 MCU RX630 768KB FLASH 144-LQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
QLX4600LIQT7 功能描述:接口 - 專用 6 GBS QD CH LANE EXTENDER RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
QLX4600MIBQ15 制造商:Intersil Corporation 功能描述:IC LINEAR
QLX4600-S30 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Quad Lane Extender
QLX4600SIQSR 功能描述:接口 - 專用 6 GBS QD CH LANE EXTENDER RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
QLX4600SIQT7 功能描述:接口 - 專用 6 GBS QD CH LANE EXTENDER RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59