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參數(shù)資料
| 型號： | QLX4600LIQSR |
| 廠商： | Intersil |
| 文件頁數(shù)： | 5/23頁 |
| 文件大?。?/td> | 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 |
13
FN6981.1
November 19, 2009
Line Silence/Electrical Idle/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 QLx4600-SL30 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 equalized signal and comparing that
to a threshold set by the current at the DT pin. When the
amplitude falls below the threshold, the output driver
stages are muted and held at their nominal common
mode voltage1.
LOS Indicator
Pins LOS[k] are used to output the state of the muting
circuitry to serve as a loss of signal indicator for channel
k. This signal is directly derived from the muting signal
off the DT-threshold signal detector output. The LOS
signal goes ‘HIGH’ when the power signal is below the DT
threshold and ‘LOW’ when the power goes above the DT
threshold. This feature is meant to be used in optical
systems (e.g. QSFP) where there are no quiescent or
electrical-idle states. In these cases, the DT threshold is
used to determine the sensitivity of the LOS indicator.
Applications Information
Several aspects of the QLx4600-SL30 are capable of
being dynamically managed by a system controller to
provide maximum flexibility and optimum performance.
These functions are controlled by interfacing to the
highlighted pins in Figure 26. The specific procedures for
controlling these aspects of the QLx4600-SL30 are the
focus of this section.
Equalization Boost Level
Channel equalization for the QLx4600-SL30 can be
individually set to either (a) one of 18 levels through the
DC voltages on external control pins or (b) one of 32
levels via a set of registers programmed by a low speed
serial bus. The pins used to control the boost level are
highlighted in Figure 26. Descriptions of these pins are
listed in Table 1. Please refer to “Pin Descriptions” on
page 3 for descriptions of all other pins on the
QLx4600-SL30.
FIGURE 24. CML INPUT EQUIVALENT CIRCUIT FOR THE
QLx4600-S30
FIGURE 25. CML OUTPUT EQUIVALENT CIRCUIT FOR
THE QLx4600-S30
NOTE: The load value of 52Ω is used to internally match
SDD22 for a characteristic impedance of 50Ω.
IN[k] P
IN[k] N
Buffer
VDD
50
VDD
52
OUT[k] P
OUT[k] N
1. The output common mode voltage remains constant during both active data transmission and output muting modes.
44
40
41
42
43
1
32
10
9
8
7
6
5
4
3
2
38
24
25
26
27
28
29
30
31
23
20
19
18
17
16
11
12
33
14
13
34
45
39
46
22
21
35
36
15
37
IN1[P]
IN1[N]
IN2[P]
IN2[N]
IN3[P]
IN3[N]
IN4[P]
IN4[N]
OUT1[P]
OUT1[N]
OUT2[P]
OUT2[N]
OUT3[P]
OUT3[N]
OUT4[P]
OUT4[N]
DT
CP3[
A]
CP3[
B]
CP
3[
C]
CP4[
A]
CP4[
B]
CP
4[
C]
CP
1
[A]
CP
1
[B]
CP
1
[C]
CP
2
[A]
CP
2
[B]
CP
2
[C]
Quellan
QLx4600-SL30
46-Lead QFN
7mm x 4mm
0.4mm Pitch
Exposed Pad
(GND)
GND
LOS1
LOS4
MODE
DI
DO
CLK
EN
B
LOS2
LOS3
BGREF
VDD
FIGURE 26. PIN DIAGRAM HIGHLIGHTING PINS USED
FOR DYNAMIC CONTROL OF THE QLx4600-
SL30
QLx4600-SL30
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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 |
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