The ISL1532A is a dual channel differential amplifier
designed for driving full rate ADSL2+ signals at very low
power dissipation. The high drive capability of 450mA makes
this driver ideal for DMT designs. It contains two pairs of
wideband, high-voltage, current mode feedback amplifiers
designed on Intersil’s HS30 Bipolar SOI process for low
power consumption in DSL systems. The amplifiers have an
internal fixed gain, which helps eliminate both feedback and
gain resisitors reducing board size and cost.
These drivers achieve an MTPR distortion measurement of
better than 70dB, while consuming typically 5mA per DSL
channel of total supply current. This supply current can be
set using a resistor on the I
ADJ
pin. Two other pins (C
0
and
C
1
) can also be used to adjust supply current to one of four
pre-set modes (full-I
S
, 3/4-I
S
, 1/2-I
S
, and full power-down).
The device is supplied in a thermally-enhanced 20 Ld
HTSSOP and the small footprint (4x5mm) 24 Ld QFN
packages. The ISL1532A is specified for operation over the
full -40°C to +85°C temperature range.
The ISL1532A provides larger output swing at heavy loads,
higher slew rate, and higher bandwidth while maintaining
pin-to-pin drop-in compatibility with the EL1528. The
ISL1532A integrates 50k pull-up resistors on C
O
and C
1
pins.
Features
• 450mA output drive capability
• 44.4V
P-P
differential output drive into 100
• ±5V to ±15V supply operation
• Internal fixed gain
• MTPR of -70dB
• Operates down to 2mA per amplifier supply current
• Current control pins
• Channel separation
- 80dB @ 500kHz
- 75dB @ 1MHz
• Direct pin-to-pin replacement for EL1528
• Pb-free plus anneal available (RoHS compliant)
Applications
• Dual port ADSL line drivers
• HDSL line drivers
• VDSL line driver
Pinouts
ISL1532A
(24 LD QFN)
TOP VIEW
20 VOUTA
24 C1AB
23 C0AB
22 VS-
21 NC
ISL1532A
(20 LD HTSSOP)
TOP VIEW
C0AB 1
C1AB 2
19 VINA-
18 VINB-
17 VOUTB
VINA+ 3
VINB+ 4
GND 5
IADJ 6
VINC+ 7
VIND+ 8
C1CD 9
C0CD 10
THERMAL
PAD
20 VS-
19 VOUTA
18 VINA-
17 VINB-
16 VOUTB
15 VOUTC
14 VINC-
13 VIND-
12 VOUTD
11 VS+
VINA+ 1
VINB+ 2
GND 3
IADJ 4
NC 5
VINC+ 6
VIND+ 7
VS+ 10
C1CD 8
C0CD 9
NC 12
NC 11
THERMAL
PAD
16 VOUTC
15 VINC-
14 VIND-
13 VOUTD
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL1532
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9001 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
