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Renesas Electronics Components Datasheet

ISL1557 Datasheet

xDSL Differential Line Driver

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DATASHEET
ISL1557
xDSL Differential Line Driver
FN7522
Rev 4.00
May 2, 2018
The ISL1557 is a dual operational amplifier designed for
VDSL2 and ADSL line driving in DMT based solutions. This
device features a high drive capability of 750mA while
consuming only 6mA of supply current per amplifier and
operating from a single 4.5V to 12V supply. The driver achieves
a typical distortion of -80dBc at 150kHz into a 25Ω load.
The ISL1557 is available in the thermally-enhanced 16 Ld QFN
and 10 Ld HMSOP package and is specified for operation
across -40°C to +85°C (IRZ, IUEZ) or -40°C to +125°C (FRZ)
temperature ranges. The ISL1557 has control pins C0 and C1
for controlling the bias and enable/disable of the outputs.
These controls allow for lowering the power to fit the
performance/power ratio for the application.
The ISL1557 is ideal for ADSL2+, SDSL, HDSL2, and VDSL line
driving applications, including both 14.5dBm and 21dBm
applications.
Related Literature
For a full list of related documents, visit our website
ISL1557 product page
Features
• Full-range industrial temperature (FRZ only): -40°C to +125°C
• 21dBm output power capability
• Drives up to 750mA from a +12V supply
• 20VP-P differential output drive into 21Ω
• -80dBc typical driver output distortion at full output at
150kHz
• -75dBc typical driver output distortion at 4MHz
• -71dBc typical driver output distortion at 10MHz
• -75dBc typical driver output distortion at 17MHz
• Low quiescent current of 6mA per amplifier
• Supply range
- ISL1557IRZ, ISL1557FRZ . . . . ±2.25V to ±6V, 4.5V to 12V
- ISL1557IUEZ. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5V to 12V
• 300MHz bandwidth
• Thermal shutdown
• Pb-free (RoHS compliant)
Applications
• VDSL2 line drivers
• Power line communications line drivers
• ADSL2+ CPE line driving
• G.SHDSL and HDSL2 line drivers
AFE
+6V
3 INA+
14
VS+
A OUTA 16
INA- 2
750
12.5
8 C0
9 C1
BIAS
10 INB+
B
INB- 11
OUTB 13
250
750
12.5
GND
4
VS-
7
-6V
FIGURE 1. TYPICAL OPERATING CIRCUIT
1:2
100
FN7522 Rev 4.00
May 2, 2018
Page 1 of 15


Renesas Electronics Components Datasheet

ISL1557 Datasheet

xDSL Differential Line Driver

No Preview Available !

ISL1557
Ordering Information
PART NUMBER
(Notes 2, 3)
PART
MARKING
TEMP.
RANGE (°C)
TAPE AND REEL
(UNITS) (Note 1)
PACKAGE
(RoHS COMPLIANT)
PKG.
DWG. #
ISL1557FRZ
155 7FRZ
-40 to +125
- 16 Ld 4x4 QFN
L16.4x4H
ISL1557FRZ-T7
155 7FRZ
-40 to +125
1k 16 Ld 4x4 QFN
L16.4x4H
ISL1557IRZ
155 7IRZ
-40 to +85
- 16 Ld 4x4 QFN
L16.4x4H
ISL1557IRZ-T7
155 7IRZ
-40 to +85
1k 16 Ld 4x4 QFN
L16.4x4H
ISL1557IUEZ
BBVAA
-40 to +85
- 10 Ld HMSOP
MDP0050
ISL1557IUEZ-T7
BBVAA
-40 to +85
1.5k
10 Ld HMSOP
MDP0050
ISL1557IRZ-EVAL
Evaluation Board
NOTES:
1. Refer to TB347 for details about reel specifications.
2. These Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Pb-free products
are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), refer to the ISL1557 product information page. For more information about MSL, refer to TB363.
Pin Configurations
ISL1557
(16 LD QFN)
TOP VIEW
16 15 14 13
NC 1
INA- 2
INA+ 3
GND 4
VS-*
12 NC
11 INB-
10 INB+
9 C1
5678
ISL1557
(10 LD HMSOP)
TOP VIEW
VS+ 1
NC 2
OUTA 3
INA- 4
INA+ 5
VS-*
10 OUTB
9 INB-
8 INB+
7 C1
6 C0
*THERMAL PAD MUST BE CONNECTED TO NEGATIVE SUPPLY: VS-.
QFN PACKAGE CAN BE USED IN SINGLE AND DUAL SUPPLY
APPLICATIONS.
*THERMAL PAD MUST BE CONNECTED TO NEGATIVE SUPPLY: VS-.
HMSOP PACKAGE CAN BE USED IN SINGLE SUPPLY APPLICATIONS
ONLY.
FN7522 Rev 4.00
May 2, 2018
Page 2 of 15


Part Number ISL1557
Description xDSL Differential Line Driver
Maker Renesas
Total Page 15 Pages
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