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GS6042 データシート(PDF) 5 Page - Semtech Corporation

部品番号 GS6042
部品情報  6G UHD-SDI/3G/HD/SD Adaptive Cable Equalizer
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メーカー  SEMTECH [Semtech Corporation]
ホームページ  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

GS6042 データシート(HTML) 5 Page - Semtech Corporation

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GS6042
Final Data Sheet
Rev. 3
PDS-060055
May 2014
5 of 21
Proprietary and Confidential
www.semtech.com
8SQ_ADJ
Input
Squelch Threshold Adjust.
Adjusts the input signal amplitude threshold of the carrier detect
function. The serial data output of the device can be muted when
the serial data input signal amplitude is too low by connecting the
CD and OP_CTL pins using a suitable resistor network (see
Figure 4-4 and Figure 4-5).
This pin has an internal pull-down resistor.
Note: The SQ_ADJ function is only available when the device is not
configured for auto-sleep mode. Reference Section 4.5 for more
detail.
9OP_CTL
Input
Output Swing, De-emphasis and Mute Control.
When this pin is connected to GND, the output swing is 850mVppd
with no de-emphasis applied to the output signal.
With this pin connected to +2.5V, the output is muted.
Intermediate voltages and functions are shown in Table 4-5. These
voltages can be achieved as shown in Figure 4-4 and Figure 4-5.
This pin has an internal pull-down resistor.
10, 11
DDO, DDO
Output
Serial digital differential output.
12
VEE_O
Power
Most negative power supply connection for the output buffer.
Connect to ground.
13
VCC_O
Power
Most positive power supply connection for the output buffer.
Connect to 1.2V - 3.3V DC.
14
SLEEP
Input
SLEEP Control.
Please refer to the DC Electrical Characteristics table for logic level
threshold and compatibility. This pin is a +2.5V input that is tolerant
to +3.3V levels.
When HIGH the part is powered-down except for the Carrier Detect
function.
This pin can be connected directly to the CD pin to automatically
put the device to sleep (low-power operation) on loss of carrier.
This pin has an internal pull-down resistor.
Note: When SLEEP is connected to CD for automatic power
reduction on loss of carrier, the SQ_ADJ pin will not modify the CD
threshold. The CD threshold will revert to the default value used
when SQ_ADJ is pulled LOW.
15
CD
Output
Carrier Detect Status Output.
Please refer to the DC Electrical Characteristics table for logic level
threshold and compatibility. This pin is a +2.5V output.
Indicates presence of an input signal. When the CD pin is LOW, a
signal has been detected at the input. When this pin is HIGH, this
indicates loss of input signal.
16
VCC_A
Power
Most positive power supply connection for the input buffer, core
and control circuits.
Connect to +3.3V DC.
Center Pad
Power
Internally bonded to VEE_A.
Connect to GND with at least 5 vias.
Table 1-1: GS6042 Pin Descriptions (Continued)
Pin Number
Name
Type
Description


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