Datenblatt-pdf.com


AD8197 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer AD8197
Beschreibung 4:1 HDMI/DVI Switch
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 30 Seiten
AD8197 Datasheet, Funktion
4:1 HDMI/DVI Switch with Equalization
AD8197
FEATURES
4 inputs, 1 output HDMI™/DVI links
Enables HDMI 1.3-compliant receiver
Pin-to-pin compatible with the AD8191
4 TMDS® channels per link
Supports 250 Mbps to 2.25 Gbps data rates
Supports 25 MHz to 225 MHz pixel clocks
Equalized inputs for operation with long HDMI cables
(20 meters at 2.25 Gbps)
Fully buffered unidirectional inputs/outputs
Globally switchable, 50 Ω on-chip terminations
Pre-emphasized outputs
Low added jitter
Single-supply operation (3.3 V)
4 auxiliary channels per link
Bidirectional unbuffered inputs/outputs
Flexible supply operation (3.3 V to 5 V)
HDCP standard compatible
Allows switching of DDC bus and 2 additional signals
Multiple channel bundling modes
1× (4:1) HDMI/DVI link switch (default)
2× (8:1) TMDS channel and auxiliary signal switch
1× (16:1) TMDS channel and auxiliary signal switch
Output disable feature
Reduced power dissipation
Removable output termination
Allows building of larger arrays
Two AD8197s support HDMI/DVI dual-link
Standards compatible: HDMI receiver, HDCP, DVI
Serial (I2C® slave) and parallel control interface
100-lead, 14 mm × 14 mm LQFP, Pb-free package
APPLICATIONS
Multiple input displays
Projectors
A/V receivers
Set-top boxes
Advanced television (HDTV) sets
GENERAL DESCRIPTION
The AD8197 is an HDMI/DVI switch featuring equalized
TMDS inputs and pre-emphasized TMDS outputs, ideal for
systems with long cable runs. Outputs can be set to a high
impedance state to reduce the power dissipation and/or to allow
the construction of larger arrays using the wire-OR technique.
Flexible channel bundling modes (for both the TMDS channels
and the auxiliary signals) allow the AD8197 to be configured as a
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
FUNCTIONAL BLOCK DIAGRAM
PARALLEL
SERIAL
I2C_SDA
I2C_SCL
I2C_ADDR[2:0]
VTTI
3
22
CONFIG
INTERFACE
RESET
CONTROL
LOGIC
AD8197
AVCC
DVCC
AMUXVCC
AVEE
DVEE
IP_A[3:0] +
IN_A[3:0]
IP_B[3:0] +
IN_B[3:0]
IP_C[3:0] +
IN_C[3:0]
IP_D[3:0] +
IN_D[3:0]
4
4
4
4
4
4 EQ
4
4
SWITCH
CORE
PE
4
4
HIGH SPEED BUFFERED
VTTO
+ OP[3:0]
ON[3:0]
VTTI
AUX_A[3:0]
AUX_B[3:0]
AUX_C[3:0]
AUX_D[3:0]
4
4
4
SWITCH
CORE
4
4
LOW SPEED UNBUFFERED
BIDIRECTIONAL
AUX_COM[3:0]
Figure 1.
TYPICAL APPLICATION
MEDIA CENTER
HDTV SET
GAME CONSOLE
SET-TOP BOX
HDMI
RECEIVER
AD8197
DVD PLAYER
04:20
Figure 2. Typical HDTV Application
4:1 single HDMI/DVI link switch, a dual 8:1 switch, or a single
16:1 switch.
The AD8197 is provided in a 100-lead LQFP, Pb-free, surface-
mount package, specified to operate over the −40°C to +85°C
temperature range.
PRODUCT HIGHLIGHTS
1. Supports data rates up to 2.25 Gbps, enabling 1080p deep
color (12-bit color) HDMI formats, and greater than
UXGA (1600 × 1200) DVI resolutions.
2. Input cable equalizer enables use of long cables at the input
(more than 20 meters of 24 AWG cable at 2.25 Gbps).
3. Auxiliary switch routes a DDC bus and two additional signals
for a single-chip, HDMI 1.3 receive-compliant solution.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2007 Analog Devices, Inc. All rights reserved.






AD8197 Datasheet, Funktion
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
AVCC to AVEE
DVCC to DVEE
DVEE to AVEE
VTTI
VTTO
AMUXVCC
Internal Power Dissipation
High Speed Input Voltage
High Speed Differential Input Voltage
Low Speed Input Voltage
I2C and Parallel Logic Input Voltage
Storage Temperature Range
Operating Temperature Range
Junction Temperature
Rating
3.7 V
3.7 V
±0.3 V
AVCC + 0.6 V
AVCC + 0.6 V
5.5 V
2.2 W
AVCC − 1.4 V < VIN <
AVCC + 0.6 V
2.0 V
DVEE − 0.3 V < VIN <
AMUXVCC + 0.6 V
DVEE − 0.3 V < VIN <
DVCC + 0.6 V
−65°C to +125°C
−40°C to +85°C
150°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
AD8197
THERMAL RESISTANCE
θJA is specified for the worst-case conditions: a device soldered
in a 4-layer JEDEC circuit board for surface-mount packages.
θJC is specified for no airflow.
Table 3. Thermal Resistance
Package Type
θJA θJC Unit
100-Lead LQFP
56 19 °C/W
MAXIMUM POWER DISSIPATION
The maximum power that can be safely dissipated by the AD8197
is limited by the associated rise in junction temperature. The
maximum safe junction temperature for plastic encapsulated
devices is determined by the glass transition temperature of the
plastic, approximately 150°C. Temporarily exceeding this limit
may cause a shift in parametric performance due to a change in
the stresses exerted on the die by the package.
Exceeding a junction temperature of 175°C for an extended
period can result in device failure. To ensure proper operation, it
is necessary to observe the maximum power rating as determined
by the coefficients in Table 3.
ESD CAUTION
Rev. 0 | Page 5 of 32

6 Page









AD8197 pdf, datenblatt
AD8197
TA = 27°C, AVCC = 3.3 V, VTTI = 3.3 V, VTTO = 3.3 V, DVCC = 3.3 V, AMUXVCC = 5 V, AVEE = 0 V, DVEE = 0 V, differential input
swing = 1000 mV, TMDS outputs terminated with external 50 Ω resistors to 3.3 V, pattern = PRBS 27 − 1, data rate = 2.25 Gbps, unless
otherwise noted.
0.6
2m CABLE = 30AWG
5m TO 20m CABLES = 24AWG
0.5
0.6
2m CABLE = 30AWG
5m TO 20m CABLES = 24AWG
0.5
0.4
0.3
1.65Gbps
EQ = 6dB
0.2
2.25Gbps
EQ = 6dB
0.1
2.25Gbps
EQ = 12dB
1.65Gbps
EQ = 12dB
0
0 5 10 15 20 25
HDMI CABLE LENGTH (m)
Figure 14. Jitter vs. Input Cable Length (See Figure 4 for Test Setup)
0.4
1.65Gbps, PE OFF
0.3
2.25Gbps, PE OFF
0.2
2.25Gbps, PE MAX
0.1
1.65Gbps, PE MAX
0
0 5 10 15 20
HDMI CABLE LENGTH (m)
Figure 17. Jitter vs. Output Cable Length (See Figure 9 for Test Setup)
50
45
40
35
30
25
480p
20
480i
15
1080i/720p
1080p
8-BIT
1.65Gbps
1080p
12-BIT
DJ (p-p)
10
5 RJ (rms)
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4
DATA RATE (Gbps)
Figure 15. Jitter vs. Data Rate
1200
1000
800
600
400
200
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4
DATA RATE (Gbps)
Figure 18. Eye Height vs. Data Rate
50
45
40
35
30
25
20
15
10
5
0
3.0
DJ (p-p)
RJ (rms)
3.1 3.2 3.3 3.4
SUPPLY VOLTAGE (V)
Figure 16. Jitter vs. Supply Voltage
3.5
3.6
800
700
600
500
400
300
200
100
0
2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
SUPPLY VOLTAGE (V)
Figure 19. Eye Height vs. Supply Voltage
Rev. 0 | Page 11 of 32

12 Page





SeitenGesamt 30 Seiten
PDF Download[ AD8197 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
AD81902:1 HDMI/DVI SwitchAnalog Devices
Analog Devices
AD8191HDMI/DVI SwitchAnalog Devices
Analog Devices
AD81922:1 HDMI/DVI SwitchAnalog Devices
Analog Devices
AD8193Buffered 2:1 TMDS SwitchAnalog Devices
Analog Devices
AD8194Buffered 2:1 TMDS SwitchAnalog Devices
Analog Devices

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche