ISL1533A_14 Datasheet, PDF (1/14 Pages) Intersil Corporation – Dual Channel Differential DSL Line Driver

Dual Channel Differential DSL Line Driver
ISL1533A
The ISL1533A is a dual channel differential amplifier designed
for driving high crest factor signals at very low distortion levels.
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 Asymmetric
Digital Subscriber Line (ADSL) and Power Line Communications
(PLC) systems. This process also provides for very rugged
protection against lightning induced surges on the line.
The supply current can be set using a resistor on the I_ADJ pin.
Pins (C₀ and C₁) can also be used to adjust supply current to
one of four preset modes (full-I_S, 3/4-I_S, 1/2-I_S, and full
power-down). The ISL1533A integrates 50k pull-up resistors on
C₀ and C₁ pins to initially disable the device.
The ISL1533A operates on ±5V to ±15V supplies or single
supply up to 30V and retains its bandwidth and linearity over
the complete full scale supply range.
Features
• 450mA output drive capability
• 44.4V_P-P differential output drive into 100
• ±5V to ±15V or single supply to 30V operation
• Operates down to supply current of 4mA per port
• Current control pins
• Channel separation
- 80dB at 500kHz
• Pb-free (RoHS compliant)
Applications
• Dual port ADSL2+ line drivers
• Power Line Communications (PLC)
The device is supplied in a thermally-enhanced small footprint
(4mmx5mm) 24 Ld QFN package. The ISL1533A is specified
for operation over the full -40°C to +85°C temperature range.
T_X+
FROM AFE
2R_G
667
T_X-
V_S+
+
-
V_S-
R_F
3k
V_S+
+
-
V_S-
R_F
3k
R_T
25
R_T
25
0.22µF
TXFR 1:1
0.22µF
FIGURE 1. TYPICAL APPLICATION CIRCUIT
100
May 9, 2014
1
FN8648.0
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 2014. 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.