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| 型号： | ISL1561IRZ |
| 厂商： | Intersil |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC XDSL LINE DVR DUAL-PORT 24QFN |
| 标准包装： | 75 |
| 系列： | * |
Fixed Gain Dual Port Class-G Differential xDSL Line
Driver
ISL1561
The ISL1561 is a fixed gain dual port class-G differential
amplifier designed for driving full rate ADSL2+ and VDSL2
signals at very low power dissipation. The driver runs on a
single +14V power supply and internally generates higher
supply voltages when needed to enable power efficient
operation for high peak-to-average ratio (PAR) ADSL2+ and
VDSL2 signals.
In ADSL2+ mode of operation with full 19.8dBm transmit
signal power across 100 Ω line load, each port consumes only
520mW of power, while with 19.5dBm VDSL2 8b profile a port
consumes 610mW of power. In VDSL2 17a mode of operation
with 14.5dBm transmit power, a port will consume 411mW of
power. These typical power consumption figures account for
receiver hybrid loading effects and transformer losses.
The ISL1561 provides two ports of wideband, current feedback
amplifiers optimized for low power consumption in xDSL
systems. The drivers achieve an average upstream missing
band power ratio (MBPR) distortion of better than -64dBc
under 19.8dBm transmit signal power into 100 Ω load. A three
Features
? Internal fixed gain of 11.6V/V to transformer (see Figure 3)
? 360mA output drive capability
? 41.8V P-P differential output drive into 100 Ω in class G mode
? VDSL2 8b profile MTPR of -64dBc
? VDSL2 17a profile MTPR of -60dBc
? ADSL2+, VDSL2 8b and 17a power consumption of 520mW,
610mW and 411mW respectively
? 8-bit programmable register to set supply current on each
port
? 3 pin serial port interface
Applications
? Dual port ADSL2+ and VDSL2 DSLAM
Alternate Part
? ISL1591 Class AB VDSL Driver
pin serial interface is used to program an 8-bit internal register
to set each port’s supply current with 0.5mA step size. This
flexibility allows the DSP to optimize each port separately
during modem training.
The device is supplied in a thermally-enhanced small footprint
(4mmx4mm) 24 lead QFN package. The ISL1561 is specified
for operation over the full -40°C to +85°C industrial
temperature range and is Pb-free RoHS compliant.
+14V
900
BIAS
SCLK
SDATA
CS
SERIAL
INTERFACE CURRENT
SETTING
POWER MANAGEMENT
CPP
CPSW
CMM
800
700
600
17a CLASS AB
8b CLASS AB
CMSW
500
BOOST
SWITCH SIGNAL
BOTH PORTS
400
AFE
SUPPLY
RAILS OF
LINE DRIVERS
300
200
8b CLASS G
INP
ANALOG
INPUT
CLASS
AB
OUTPUT OF
DRIVER
OUT
100
17a CLASS G
DRIVER
1 OF 2
PORTS
0
2
4
6
8 10 12 14
Tx POWER (dBm)
16
18
20
FIGURE 1. BLOCK DIAGRAM
FIGURE 2. CLASS G+ vs CLASS AB DRIVER TOTAL POWER
February 26, 2013
FN7941.1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2012, 2013. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL1561IRZ-T13 | 功能描述:IC XDSL LINE DVR DUAL-PORT 24QFN RoHS:是 类别:传感器，转换器 >> 颜色 系列:* 产品培训模块:LED Thermal Management 产品目录绘图:OPB780Z 标准包装:1 系列:- 检测距离:- 输出数:1 输出类型:方波，变频 电源电压:2.7 V ~ 5.5 V 电流 - 电源:30mA 产品目录页面:2788 (CN2011-ZH PDF) 配用:365-1509-ND - KIT COLOR SENSOR OPB780Z 其它名称:365-1378 |
| ISL1571 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Power Line Communication PLC |
| ISL1571IRZ | 制造商:Intersil Corporation 功能描述:OP AMP DUAL GP 6V/12V 16QFN EP - Bulk |
| ISL1571IRZ-EVAL | 制造商:Intersil Corporation 功能描述:ISL1571IRZ-EVAL DEMO BOARD - Bulk |
| ISL1571IRZ-T7 | 制造商:Intersil Corporation 功能描述:OP AMP DUAL GP 6V/12V 16QFN EP - Tape and Reel |
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