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參數(shù)資料
| 型號： | ADA4424-6ARUZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 0K |
| 描述： | IC FILTR VID6CH SD/ED/HD 38TSSOP |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 濾波器類型： | SD/ED/HD |
| 濾波器數(shù)： | 6 |
| 濾波器階數(shù)： | 5th |
| 電源電壓： | 3.3V，5V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 38-TFSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 38-TSSOP |
| 包裝： | 帶卷 (TR) |
6-Channel SD/ED/HD Video Filter with
Charge Pump
ADA4424-6
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
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
www.analog.com
Fax: 781.461.3113
2009-2010 Analog Devices, Inc. All rights reserved.
FEATURES
3 SD channels; 18 MHz typical 1 dB bandwidth (BW)
3 ED/HD channels; 25 MHz or 34 MHz typical 1 dB BW
Fixed gain of 6.2 dB (2.042 V/V)
On-board negative supply for output coupling without
capacitors
Minimal dc offset at the output pins
Internal summation of Y and C channels for CVBS output
Flexible input dc offset cancellation for luma channels
D-terminal (EIAJ RC-5237 D5) and S-terminal (S1/S2) support
Capable of driving 2 back-terminated 75 Ω video loads
simultaneously
Separate power-down pins for SD and ED/HD sections
38-lead TSSOP package
Sony Green Partner Environmental Quality Approval
Program compliant
APPLICATIONS
DVD players and recorders
Set-top boxes
Projectors
Personal video recorders
FUNCTIONAL BLOCK DIAGRAM
08
55
0-
0
01
LPF
CHARGE PUMP
POWER
MANAGEMENT
S
VSS_SD
VSS_HD
D/S
TERMINAL
CONTROL
HD_ENB
SD_ENB
+3.3V
+5V
L1
L2
L3
S1/S2
L1_OUT
L2_OUT
L3_OUT
S1/S2_OUT
Y_OUT
CVBS_OUT
C_OUT
HY_OUT
HPb_OUT
HPr_OUT
×2
×1
C2
C1
+3.3V
D1
D2
D3
Y_IN
C_IN
MODE0
MODE1
OFFSET_ENB
HY_IN
HPb_IN
HPr_IN
FC_SEL
SD_ENABLE
HD_ENABLE
HD_ENB
SD_ENB
×2
×1
ADA4424-6
OFFSET
CANCELLATION
×1
VDD3_SD
VDD3_HD
VDD5
C1a
C1b C2/CP_OUT
VDD3_CP
GND_CP
FC_SEL
Figure 1.
GENERAL DESCRIPTION
The ADA4424-6 is a high performance video reconstruction filter
specifically designed for consumer applications. It consists of a
standard definition (SD) section with two fifth-order Butterworth
filters and a high definition (HD) section with three fifth-order
filters. The SD section contains an internal Y/C summer for CVBS
output, whereas the HD section provides selectable corner
frequencies for either extended definition (ED) or HD signals.
The ADA4424-6 filter/buffer section operates from a single 3.3 V
supply. Full support for D-terminal (EIAJ RC-5237 D5) and S1/S2
signaling is provided, along with a dedicated 5 V supply pin.
Separate enable pins are provided for the SD and HD sections.
The luma channels (Y_IN, HY_IN) of the ADA4424-6 are
capable of detecting and cancelling dc input offsets of up to
1.1 V. Four distinct modes of detection/cancellation are
available.
The output drivers on the ADA4424-6 feature rail-to-rail outputs
with 6.2 dB gain. An on-board charge pump allows the outputs to
swing up to 1.4 V below ground, eliminating the need for large
coupling capacitors. Each output is capable of driving two 75 Ω
doubly terminated cables.
The ADA4424-6 is available in a 38-lead TSSOP and operates in
the industrial temperature range of 40°C to +85°C.
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