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GS8000 Schematic ( PDF Datasheet ) - Gennum Corporation

Teilenummer GS8000
Beschreibung DVI / HDMI Extender
Hersteller Gennum Corporation
Logo Gennum Corporation Logo 




Gesamt 16 Seiten
GS8000 Datasheet, Funktion
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GS8000
DVI / HDMI Extender
GS8000 Data Sheet
Key Features
Description
• extends cable length of the TMDS and DDC channels of
a DVI or HDMI link
• DVI 1.0-compliant and HDMI 1.1-compliant input and
output signalling
• one device supports a complete single link DVI 1.0 or
HDMI interface (two devices for a dual link DVI interface)
• operational at TMDS rates from 252Mb/s to 1.65Gb/s
• supports display resolutions up to UXGA at 60Hz in 24-bit
true colour pixel format
• integrated user-tunable input termination resistors
• automatic identification of link inactivity with carrier detect
output
• output signal swing adjustable from 200mV to 2000mV
differential into 100load
• output enable function
• superior noise immunity
• small footprint (44-pin QFN)
Applications
The GS8000 is Gennum’s DVI 1.0-compliant and HDMI
1.1-compliant automatic cable extender. When used in
front of a DVI/HDMI receiver, it produces a receive
solution with longer cable length. A DVI link of 20 to 30
metres at UXGA 60Hz (162Mb/s) can be realized with
the GS8000 provided the DVI transmitter is within the
DVI specification for jitter and voltage swing and that
high quality DVI cable is used.
The GS8000 contains an Output Enable input and
Carrier Detect output to allow for auto muting of the
clock and data outputs upon link inactivity.
Excellent power supply and common mode noise
rejection is employed to ensure robust operation in
noisy environments. The differential outputs are
adjustable and compatible with the DVI 1.0 and
A DVI or HDMI input that will only be connected to a DVI HDMI 1.1 receiver specifications for input common
output with launch amplitude between 800mV and
mode voltage and swing.
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DataShee
OE
RXC
RXC
RX0
RX0
RX1
RX1
RX2
RX2
DDC_SDA
DDC_SCL
DataSheet4U.com
DataSheet4 U .com
Signal Monitor
& Control
LONG REACHTMDS
LONG REACHTMDS
LONG REACHTMDS
LONG REACHTMDS
LONG REACHDDC
GS8000 Functional Block Diagram
SCDT
TXC
TXC
TX0
TX0
TX1
TX1
TX2
TX2
Proprietary and Confidential 25544 - 3 May 2005
DataSheet4U.com
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GS8000 Datasheet, Funktion
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GS8000 Data Sheet
Table 2-2: DC Electrical Characteristics (Continued)
VDD = 3.0V to 3.3V, TA = 0°C to 70°C, unless otherwise shown
Parameter
Symbol Conditions
Min Typ Max Units Test Notes
Level
Digital I/O
Input Voltage, Logic LOW (OE)
Input Voltage, Logic HIGH (OE)
Output Voltage, Logic LOW
(SCDT)
Output Voltage, Logic HIGH
(SCDT)
VIL
VIH
VOL
VOH
– 0.70
V
1
2.0 – –
V
1
Sync Detect Current
– 0.4
V
1
= +1.25mA
Sync Detect Current
2.4
V
1
= -1.25mA
Differential Signal Inputs
Common Mode Input Voltage
Range
Single Ended Standby Input
Voltage
VCMIN
VDD-0.4
VDD
Transmitter Disabled
VDD
or Disconnected
V
V
6,7
9
et4U.com
Differential Signal Outputs
Common Mode Output Voltage VCMOUT
VDD-0.5
VDD
6,7
4
Range
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Single Ended Standby Output
Voltage
50Loads, Output
VDD
V
1
Muted
Single Ended High Level Output –
Voltage
50Loads
VDD
V
1
TEST LEVELS
1. Production test at room temperature and nominal supply voltage with
guardbands for supply and temperature ranges.
2. Production test at room temperature and nominal supply voltage with
guardbands for supply and temperature ranges using correlated test.
3. Production test at room temperature and nominal supply voltage.
4. QA sample test.
5. Calculated result based on Level 1, 2, or 3.
6. Not tested. Guaranteed by design simulations.
7. Not tested. Based on characterization of nominal parts.
8. Not tested. Based on existing design/characterization data of similar
product.
9. Indirect test.
NOTES
1. All DC and AC electrical parameters within specification.
2. Guaranteed functional.
3. MIL STD 883 ESD protection is applied to all pins on the
device.
4. Compatible with far end termination at 3.3V or 1.8V.
DataShee
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DataSheet4 U .com
Proprietary and Confidential 25544 - 3 May 2005
DataSheet4U.com
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6 Page









GS8000 pdf, datenblatt
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GS8000 Data Sheet
3.5.4 Complete LONG REACH™ Receive Solution
Figure 3-2: LONG REACH™ DVI or HDMI Receive Solution shows a complete DVI
/ HDMI receive solution implementing the GS8000 with a DVI or HDMI Receiver
and local EDID PROM.
HDCP Key
EEPROM
et4U.com
TMDS
DVI
or
HDMI
Connector
GS8000
TMDS
DVI
or
HDMI
Receiver
with HDCP
RGB or YCbCr
VIDEO
CTL1-2
AUDIO*
HSYNC
VSYNC
DE
DDC_SDA
DDC_SCL
LEVEL
SHIFTER
EDID
EEPROM
DDC Bus
Figure 3-2: LONDGataRSEhAeCeHt4UD.cVoImor HDMI Receive Solution
*HDMI only
DataShee
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Proprietary and Confidential 25544 - 3 May 2005
DataSheet4U.com
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12 Page





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