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參數(shù)資料
| 型號(hào)： | AD8195ACPZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/20頁 |
| 文件大小： | 0K |
| 描述： | IC BUFF HDMI/DVI W/EQUAL 40LFCSP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 功能： | 開關(guān) |
| 電路： | 1 x 1:1 |
| 電壓電源： | 單電源 |
| 電壓 - 電源，單路/雙路(±)： | 3 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 40-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 40-LFCSP-VQ（6x6） |
| 包裝： | 托盤 |
HDMI/DVI Buffer with Equalization
Data Sheet
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2008–2012 Analog Devices, Inc. All rights reserved.
FEATURES
1 input, 1 output HDMI/DVI link
Enables HDMI 1.3a-compliant front panel input
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 m at 2.25 Gbps)
Preemphasized outputs
Fully buffered unidirectional inputs/outputs
50 on-chip terminations
Low added jitter
Transmitter disable feature
Reduces power dissipation
Disables input termination
3 auxiliary buffered channels per link
Bidirectional buffered DDC lines (SDA and SCL)
Bidirectional buffered CEC line with integrated pull-up
resistors (27 k)
Independently powered from 5 V of HDMI input
connector
Logic level translation (3.3 V, 5 V)
Input/output capacitance isolation
Standards compatible: HDMI, DVI, HDCP, DDC, CEC
40-lead LFCSP_VQ package (6 mm × 6 mm)
APPLICATIONS
Front panel buffer for advanced television (HDTV) sets
GENERAL DESCRIPTION
The AD8195 is an HDMI/DVI buffer featuring equalized TMDS
inputs and preemphasized TMDS outputs, ideal for systems with
long cable runs. The AD8195 includes bidirectional buffering
for the DDC bus and bidirectional buffering with integrated
pull-up resistors for the CEC bus. The DDC and CEC buffers
are powered independently of the TMDS buffers so that DDC/
CEC functionality can be maintained when the system is powered
off. The AD8195 meets all the requirements for sink tests as
defined in Section 8 of the HDMI Compliance Test 1.3c.
The AD8195 is specified to operate over the 40°C to +85°C
temperature range.
FUNCTIONAL BLOCK DIAGRAM
IP[3:0]
IN[3:0]
VTTI
OP[3:0]
AMUXVCC
AVEE
VTTO
AVCC
ON[3:0]
VREF_IN
VREF_OUT
+
–
+
–
EQ
BUFFER
PE
CONTROL
LOGIC
4
2
4
HIGH SPEED
BUFFERED
LOW SPEED
BUFFERED
PE_
EN
T
X_
EN
CO
M
P
PARALLEL
BIDIRECTIONAL
AD8195
SCL_IN
SDA_IN
SCL_OUT
SDA_OUT
CEC_IN
CEC_OUT
07049-
001
Figure 1.
TYPICAL APPLICATION
07049-
002
MEDIA CENTER
SET-TOP BOX
DVD PLAYER
HDTV SET
4:1 HDMI
SWITCH
AD8195
HDMI
RECEIVER
FRONT PANEL
CONNECTOR
BACK PANEL
CONNECTORS
GAME
CONSOLE
Figure 2. Typical AD8195 Application for HDTV Sets
PRODUCT HIGHLIGHTS
1. Enables a fully HDMI 1.3a-compliant front panel input.
2. Supports data rates of up to 2.25 Gbps, enabling 1080p deep
color (12-bit color) HDMI formats and greater than UXGA
(1600 × 1200) DVI resolutions.
3. Input cable equalizer enables use of long cables; more than
20 meters (24 AWG) at data rates of up to 2.25 Gbps.
4. Auxiliary buffer isolates and buffers the DDC bus and CEC
line for a single chip, fully HDMI 1.3a-compliant solution.
5. Auxiliary buffer is powered independently from the TMDS
link so that DDC/CEC functionality can be maintained
when the system is powered off.
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