ISL1539_07 Datasheet, PDF (1/2 Pages) Intersil Corporation – Dual Channel Differential VDSL2 Line Driver

®
Data Sheet
February 12, 2007
ISL1539
FN7516.2
Dual Channel Differential VDSL2 Line
Driver
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 I_ADJ pin. Two other pins (C₀ and C₁) 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 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.
Pinouts
ISL1539
(24 LD HTSSOP)
TOP VIEW
VS- 1
24 VS+
C0AB 2
23 VOUTA
C1AB 3
22 VINA-
VINA+ 4
21 VINB-
VINB+ 5
20 VOUTB
GND 6
IADJ 7
THERMAL
PAD
19 NC
18 NC
VINC+ 8
17 VOUTC
VIND+ 9
16 VINC-
C1CD 10
15 VIND-
C0CD 11
14 VOUTD
VS- 12
13 VS+
Features
• 450mA output drive capability
• 44.1V_P-P differential output drive into 100Ω
• -85dBc THD @ 1MHz 2V_P-P
• High slew rate of 1200V/µs differential
• Bandwidth - 80MHz @ A_V = 10
• Current control pins
• Channel separation
- 80dB @ 500kHz
- 75dB @ 1MHz
- 60dB @ 4MHz
• Pb-free plus anneal available (RoHS compliant)
Applications
• VDSL2 20dBm
• ADSL2++
Get Full Datasheet
ISL1539
(24 LD QFN)
TOP VIEW
VINA+ 1
VINB+ 2
GND 3
IADJ 4
NC 5
VINC+ 6
VIND+ 7
THERMAL
PAD
19 VINA-
18 VINB-
17 VOUTB
16 NC/SHIELD
15 VOUTC
14 VINC-
13 VIND-
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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