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| 型號： | AD8148ACPZ-R7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DRIVER TRIPLE DIFF 24-LFCSP |
| 標(biāo)準(zhǔn)包裝： | 1,500 |
| 應(yīng)用： | 差分 |
| 輸出類型： | 差分 |
| 電路數(shù)： | 3 |
| -3db帶寬： | 900MHz |
| 轉(zhuǎn)換速率： | 3000 V/µs |
| 電流 - 電源： | 62.5mA |
| 電流 - 輸出 / 通道： | 87mA |
| 電壓 - 電源，單路/雙路(±)： | 4.5 V ~ 11 V，±2.25 V ~ 5.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 24-LFCSP-VQ（4x4） |
| 包裝： | 帶卷 (TR) |
Triple Differential Driver
for Wideband Video
Data Sheet
Rev. B
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
2007–2014 Analog Devices, Inc. All rights reserved.
FEATURES
Triple high speed fully differential driver
600 MHz, 3 dB, 2 V p-p bandwidth (AD8147)
200 MHz, 0.1 dB, 2 V p-p bandwidth
3000 V/μs slew rate
Differential or single-ended input to differential output
Can be used as differential-to-differential receiver
Drives one or two 100 Ω UTP cables
Adjustable output common-mode voltage (AD8146)
Internal common-mode feedback network
Output balance error 50 dB @ 50 MHz
Output pull-down feature for line isolation
Low power: 57 mA @ 5 V for 3 drivers (AD8146)
Wide supply voltage range: +5 V to ±5 V
Available in a small 4 mm × 4 mm LFCSP
APPLICATIONS
QXGA or 1080p video transmission
KVM networking
Video over unshielded twisted pair (UTP)
Differential signal multiplexing
FUNCTIONAL BLOCK DIAGRAMS
AD8146
OPD
1
VS– 2
–IN A 3
+IN A 4
VS– 5
VOCMC
VS+
–IN C
+IN C
VS–
18
17
16
15
14
–OUT A 6
–OUT C
13
V
S+
–I
N
B
+I
N
B
V
S–
V
OC
M
A
24
23
22
21
20
V
OC
M
B
19
+O
U
T
A
V
S+
+O
U
T
B
–O
UT
B
V
S+
7
8
9
10
11
+O
U
T
C
12
A
B
C
09
32
7-
00
1
Figure 1.
AD8147/
AD8148
OPD
1
VS–
2
–IN R
3
+IN R
4
VS–
5
SYNC LEVEL
VS+ (SYNC)
–IN B
+IN B
VS–
18
17
16
15
14
–OUT R
6
–OUT B
13
V
S+
–I
N
G
+I
N
G
V
S–
(
S
Y
NC)
V
SYN
C
24
23
22
21
20
H
SYNC
19
+O
U
T
R
V
S+
+O
U
T
G
–O
UT
G
V
S+
7
8
9
10
11
+O
U
T
B
12
A
B
C
×2
09
32
7-
0
02
Figure 2.
GENERAL DESCRIPTION
single-ended input to differential output drivers. The AD8146
and AD8147 have a fixed gain of 2, and the AD8148 has a fixed
gain of 4. They are all specifically designed for the highest
resolution component video signals but can be used for any
type of analog signals or high speed data transmission over
either Category 5 UTP cable or differential printed circuit
board (PCB) transmission lines.
These drivers can be used with the AD8145 triple differential-
to-singled-ended receiver, and the AD8117 crosspoint switch to
produce a video distribution system capable of supporting
UXGA or 1080p signals.
Manufactured on the Analog Devices, Inc. second generation
XFCB bipolar process, the drivers have large signal bandwidths
of 700 MHz and fast slew rates. They have an internal common-
mode feedback feature that provides output amplitude and
phase matching that is balanced to 60 dB at 50 MHz, suppressing
even-order harmonics and minimizing radiated
electromagnetic interference (EMI).
The common-mode voltage of each AD8146 output can be set
to any level, allowing transmission of signals over the common-
mode voltages. The AD8147 and AD8148 encode the vertical
and horizontal sync signals on the common-mode voltages of
the outputs. All outputs can be independently set to low voltage
states to be used with series diodes for line isolation, allowing
easy differential multiplexing over the same twisted pair cable.
and operate over a temperature range of 40°C to +85°C.
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