ISL1533A
Dual Channel Differential DSL Line Driver
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 with the Renesas
HS30 Bipolar SOI process for low power consumption in
Asymmetric Digital Subscriber Line (ADSL) and Power Line
Communications (PLC) systems. This process provides very
rugged protection against lightning induced surges on the line.
The supply current can be set using a resistor on the IADJ pin.
Pins C0 and C1 can adjust supply current to one of four preset
modes (full-IS, 3/4-IS, 1/2-IS, and full power-down). The
ISL1533A integrates 50k pull-up resistors on Pins C0 and C1 to
initially disable the device.
The ISL1533A operates on ±5V to ±15V supplies or a single
supply up to 30V and retains its bandwidth and linearity across
the complete full scale supply range.
The device is supplied in a thermally-enhanced small footprint
(4mmx5mm) 24 Ld QFN package. The ISL1533A is specified
for operation across the full -40°C to +85°C temperature
range.
Related Literature
For a full list of related documents, visit our website:
• ISL1533A device page
DATASHEET
FN8648
Rev 2.00
Jan 31, 2019
Features
• 450mA output drive capability
• 44.4VP-P differential output drive into 100Ω
• ±5V to ±15V or single supply to 30V operation
• Operates down to a 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)
TX+
FROM AFE
2RG
667Ω
TX-
VS+
+
-
VS-
RF
3kΩ
VS+
+
-
VS-
RF
3kΩ
RT
25Ω
RT
25Ω
0.22µF
TXFR 1:1
0.22µF
FIGURE 1. TYPICAL APPLICATION CIRCUIT
FN8648 Rev 2.00
Jan 31, 2019
100Ω
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