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1
Dual Channel Differential VDSL2 Line Driver
ISL1539
The ISL1539 is to be used for high performance long reach
and high speed applications, including ADSL2, ADSL2+, and
VDSL2 20dBm.
The ISL1539 is an integral part of the signal chain. The driver
has been optimized for flat gain response and reduced
harmonic distortion and noise in the bands of interest to
improve the overall signal to noise in the system.
These drivers achieve a total harmonic distortion (THD)
measurement of typically -60dB MTPR @ 1.1MHz, while
consuming typically 10mA per DSL channel of total supply
current. This supply current can be set using a resistor on the
IADJ pin. Two other pins (C0 and C1) can also be used to adjust
supply current to one of four pre-set modes (full-IS, 3/4-IS,
1/2-IS, and full power-down). The ISL1539 operates on ±5V to
±15V supplies and retains its bandwidth and linearity over the
complete supply range.
The device is supplied in the small footprint (4mmx5mm) 24 Ld
QFN package and is specified for operation over the full
-40°C to +85°C temperature range.
Features
450mA output drive capability
44.1VP-P differential output drive into 100Ω
-85dBc THD @ 1MHz 2VP-P
High slew rate of 1200V/s differential
Bandwidth - 80MHz @ AV = 10
Current control pins
Channel separation
- 80dB @ 500kHz
- 75dB @ 1MHz
- 60dB @ 4MHz
Pb-free (RoHS compliant)
Applications
VDSL2 20dBm
ADSL2++
Pin Configuration
Ordering Information
PART NUMBER
PART
MARKING
PACKAGE
(Pb-free)
PKG. DWG. #
ISL1539IRZ
1539 IRZ
24 Ld QFN
MDP0046
ISL1539IRZ-T7
1539 IRZ
24 Ld QFN
MDP0046
ISL1539IRZ-T13
1539 IRZ
24 Ld QFN
MDP0046
NOTES:
1. Please refer to
TB347 for details on reel specifications.
2. These Intersil 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). Intersil 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), please see device information
page for
ISL1539. For more information on MSL, please see tech
ISL1539
(24 LD QFN)
TOP VIEW
19
18
17
16
15
14
13
24
23
22
21
20
8
9
10
11
12
1
2
3
4
5
6
7
VINA+
VINB+
GND
IADJ
NC
VINC+
VIND+
VINA-
VINB-
VOUTB
NC/SHIELD
VOUTC
VINC-
VIND-
C1
A
B
C0
A
B
VS-
VS+
VOUTA
C1CD
C0CD
VS-
VS
+
VO
U
T
D
THERMAL
PAD
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 2006-2008, 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.
June 21, 2013
FN7516.4