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GS1524 の電気的特性と機能

GS1524のメーカーはGennum Corporationです、この部品の機能は「HD-LINX-TM II Multi-Rate SDI Adaptive Cable Equalizer」です。


製品の詳細 ( Datasheet PDF )

部品番号 GS1524
部品説明 HD-LINX-TM II Multi-Rate SDI Adaptive Cable Equalizer
メーカ Gennum Corporation
ロゴ Gennum Corporation ロゴ 




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GS1524 Datasheet, GS1524 PDF,ピン配置, 機能
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GS1524 HD-LINX™ II
Multi-Rate SDI Adaptive
Cable Equalizer
GS1524 Data Sheet
Key Features
• SMPTE 292M, SMPTE 344M and SMPTE 259M
compliant
• automatic cable equalization
• multi-standard operation from 143Mb/s to
1.485Gb/s
• supports DVB-ASI at 270Mb/s
• manual bypass (useful for low data rates with slow
rise/fall times)
• performance optimized for 270Mb/s and 1.485Gb/s
• typical maximum equalized length of Belden 1694A
cable: 140m at 1.485Gb/s, 350m at 270Mb/s
• 50Ω differential output (with internal 50Ω pull-ups)
• Pb-free and RoHS Compliant
Key Specifications
• cable length indicator for SMPTE 259M inputs
• output mute based on max cable length adjust or
manual override
• single 3.3V power supply operation
• operating temperature range: 0°C to +70°C
Applications
• SMPTE 292M, SMPTE 344M and SMPTE 259M
Coaxial Cable Serial Digital Interfaces
Description
The GS1524 is a second-generation high-speed bipolar
integrated circuit designed to equalize and restore
signals received over 75Ω co-axial cable at data rates
from 143Mb/s up to 1.485Gb/s. The GS1524 is
designed to support SMPTE 292M, SMPTE 344M and
SMPTE 259M, and is optimized for performance at
270Mb/s and 1.485Gb/s.
The GS1524 features DC restoration to compensate for
the DC content of SMPTE pathological test patterns.
The GS1524 also incorporates a Cable Length Indicator
(CLI) that provides an indication of the amount of cable
being equalized for data rates up to 360Mb/s.
A voltage programmable mute threshold (MCLADJ) is
included to allow muting of the GS1524 output when an
approximate selected cable length is reached for
SMPTE 259M signals. This feature allows the GS1524
to distinguish between low amplitude SD-SDI signals
and noise at the input of the device. The CD/MUTE pin
provides an indication of the GS1524 mute status in
addition to functioning as a mute control input. The SD
outputs of the GS1524 may be forced to a mute state by
applying a voltage to the CD/MUTE pin.
Power consumption is typically 265mW using a 3.3V
power supply.
This component and all homogeneous subcomponents
are RoHS compliant.
MCLADJ
SDI
SDI
CABLE LENGTH INDICATOR/ADJUSTOR
CARRIER DETECT
MUTE
EQUALIZER
DC RESTORE
OUTPUT
AGC
Functional Block Diagram
14976 - 7 June 2005
CLI
CD/MUTE
BYPASS
SDO
SDO
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GS1524 pdf, ピン配列
1. Electrical Characteristics
1.1 Absolute Maximum Ratings
GS1524 Data Sheet
Parameter
Supply Voltage
Input ESD Voltage
Storage Temperature Range
Input Voltage Range (any input)
Operating Temperature Range
Power Dissipation
Lead Temperature (soldering, 10 sec.)
Value
-0.5V to +3.6VDC
500V
-50°C< Ts < 125°C
-0.3 to (VCC + 0.3)V
0°C to 70°C
300mW
260°C
1.2 DC Electrical Characteristics
Table 1-1: DC Electrical Characteristics
VDD = 3.3V, TA = 0°C to 70°C, unless otherwise shown
Parameter
Conditions Symbol
Supply Voltage
Power Consumption
Supply Current
Output Common Mode
Voltage
Input Common Mode
Voltage
CLI DC Voltage (0m)
CLI DC Voltage (no signal)
Floating MCLADJ DC
Voltage
MCLADJ Range
CD/Mute Output Voltage
TA=25°C
TA=25°C
TA=25°C
VCC
PD
ΙS
VCMOUT
TA=25°C
VCMIN
TA=25°C
TA=25°C
TA=25°C
TA=25°C
Carrier not
present
Carrier present
VCD/Mute(OH)
VCD/Mute(OL)
Min Typ
Max
3.135
3.3
265
80
VCC - ΔVSDO/2
3.465
– 1.75
– 2.5
– 1.9
– 1.3
– 0.69
2.6 –
––
1.2
Units Notes Test
Levels
V
± 5%
1
mW –
5
mA –
1
V–
7
V–
10
V–
V–
V–
1
7
7
V–
V–
7
1
–1
14976 - 7 June 2005
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3Pages


GS1524 電子部品, 半導体
2. Pin Out
2.1 Pin Connections
GS1524 Data Sheet
CLI
V
CC
V
EE
SDI
SDI
V
EE
AGC+
AGC-
1 16
2 15
3 14
4
GS1524
13
16PIN SOIC
5
TOP VIEW
12
6 11
7 10
89
CD/MUTE
V
CC
V
EE
SDO
SDO
V
EE
MCLADJ
BYPASS
Figure 2-1: 16 PIN SOIC
2.2 Pin Descriptions
Table 2-1: Pin Descriptions
Pin Number
1
Name
CLI
Type
ANALOG OUTPUT
4,5
SDI, SDI
INPUT
7,8 AGC+, AGC- PASSIVE INPUT
9
BYPASS
LOGIC INPUT
10
MCLADJ
ANALOG INPUT
12, 13
SDO, SDO
PECL OUTPUT
Description
CABLE LENGTH INDICATOR. An analog voltage proportional to the cable
length connected to the Serial digital input.
Note: CLI is recommended for data rates up to 360Mb/s only.
Serial digital differential input.
External AGC capacitor. Should be set to IµF
Forces the Equalizing and DC RESTORE stages into bypass mode when
HIGH. No equalization occurs in this mode.
MAXIMUM CABLE LENGTH ADJUST. Adjusts the approximate maximum
amount of cable to be equalized (from 0m to the maximum cable length).
The output is muted (latched to the last state) when the maximum cable
length is achieved.
Note: MCLADJ is recommended for data rates up to 360Mb/s
Equalized serial digital differential output.
14976 - 7 June 2005
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