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| 型号： | QLX4600LIQT7 |
| 厂商： | Intersil |
| 文件页数： | 11/23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 |
19
FN6981.1
November 19, 2009
Detection Threshold (DT) Pin Functionality
The QLx4600-SL30 is capable of maintaining periods of
line silence on any of its four channels by monitoring
each channel for loss of signal (LOS) conditions and
subsequently muting the outputs of a respective channel
when such a condition is detected. A reference current
applied to the detection threshold (DT) pin is used to set
the LOS threshold of the internal signal detection
circuitry. Current control on the DT pin is done via one or
two external resistors. Nominally, both a pull-up and
pull-down resistor are tied to the DT pin (Figure 32A),
but if adequate control of the supply voltage is
maintained to within ±3% of 1.2V, then a simple
pull-down resistor is adequate (as in Figure 32B).
Resistors used should be at least 1/16W, with ±1%
precision.
The internal bias point of the DT pin, nominally 1.05V, is
used in conjunction with the voltage divider (R1 and R2)
shown in Figure 32A to set the reference current on the
DT pin.
Case 1: Channels with less than or equal to 25dB loss at
2.5GHz (1Gb/s to 6Gb/s):
For signals transmitted on channels having less than
or equal to 25dB of loss at 2.5GHz, the optimal DT
reference current is 0A. This optimal reference
current may be achieved by either leaving the DT pin
floating, or tying the DT pin to ground (GND) with a
10MΩ resistor
Case 2: Channels with greater 25dB loss at 2.5GHz
(1Gb/s to 6Gb/s):
For channels exhibiting more than 25dB of total loss
(this includes cable or FR-4 loss) the DT pin should
be configured for a reference sink current (coming
out of the DT pin) of approximately 2A. A typical
configuration for a 2A sink current is given in
utilized, a 525kΩ resistor would be used.
FIGURE 32A.
FIGURE 32B.
FIGURE 32C.
FIGURE 32.
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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