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ADDAC80-CBI-I 数据手册 - ADI（亚德诺）
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ADI（亚德诺）
封装:
DIP
描述:
完整的低造价的12位D / A转换器 COMPLETE LOW COST 12-BIT D/A CONVERTERS
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ADDAC80-CBI-I数据手册
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Single Port VDSL2
Line Driver with Shutdown
AD8398A
Rev. D
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.
Trademarks and registered trademarks are the property of their respective owners.
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 ©2008–2010 Analog Devices, Inc. All rights reserved.
FEATURES
Voltage feedback
Wide output swing
18.4 V p-p differential, R
LOAD, DIFF
= 20 Ω from 12 V supply
High output current
Linear output current of 450 mA peak
Low distortion
−65 dBc for Profile 8b @ 20.4 dBm
−55 dBc for Profile 17a @ 14.5 dBm
High speed
85 MHz bandwidth (A
V DIFF
= 5)
APPLICATIONS
ADSL2+/VDSL2 CO/CPE line drivers
PLC line drivers
Consumer xDSL modems
Twisted pair line drivers
FUNCTIONAL BLOCK DIAGRAM
NC = NO CONNECT
1NC
2−IN A
3+IN A
4GND
11 −IN B
12 NC
10 +IN B
9PD1
5
NC
6
NC
7
V
EE
8
PD0
15
NC
16
OUT A
14
V
CC
13
OUT
B
07760-001
–
+
–
+
Figure 1. Thermally Enhanced, 4 mm × 4 mm, 16-Lead LFCSP_WQ
TYPICAL APPLICATION DIAGRAM
V
MID
*
TIP
RING
AD8398A
AD8398A
1/2
1/2
*V
MID
=
V
CC
+
V
EE
2
07760-002
Figure 2. Typical VDSL2 Application
GENERAL DESCRIPTION
The AD8398A comprises two high speed, voltage feedback
operational amplifiers. When configured as a differential line
driver, the AD8398A is an ideal choice for ADSL2+, VDSL2, and
power line communications (PLC) applications. It has high
output current, high bandwidth, and fast slew rate, combined
with exceptional multitone power ratio (MTPR) and common-
mode stability. The AD8398A is available in a thermally enhanced
4 mm × 4 mm, 16-lead LFCSP.
The AD8398A incorporates power management functionality
via two CMOS-compatible control pins, PD0 and PD1. These
pins select one of four operating modes: full power, medium
power, low power, or complete power-down. In the power-down
mode, the quiescent current drops to 0.7 mA.
The AD8398A operates in the industrial temperature range of
−40°C to +85°C.
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