DATASHEET
ISL1539
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 (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 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.
DESIGNS
DED FOR NEW
EN
NOT RECOMM
EPLACEMENT
OMMENDED R
t
NO REC
pport Center a
r Technical Su
sc
contact ou
.intersil.com/t
ERSIL or www
1-888-INT
FN7516
Rev 4.00
June 21, 2013
Features
• 450mA output drive capability
• 44.1V
P-P
differential output drive into 100
• -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 (RoHS compliant)
Applications
• VDSL2 20dBm
• ADSL2++
Ordering Information
PART NUMBER
(Notes 2, 3)
ISL1539IRZ
ISL1539IRZ-T7
(Note 1)
ISL1539IRZ-T13
(Note 1)
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
brief
TB363
PART
MARKING
1539 IRZ
1539 IRZ
1539 IRZ
PACKAGE
(Pb-free)
24 Ld QFN
24 Ld QFN
24 Ld QFN
PKG. DWG. #
MDP0046
Pin Configuration
ISL1539
(24 LD QFN)
TOP VIEW
20 VOUTA
19 VINA-
18 VINB-
17 VOUTB
THERMAL
PAD
16 NC/SHIELD
15 VOUTC
14 VINC-
13 VIND-
VS- 10
VS+ 11
VOUTD 12
C1CD 8
C0CD 9
24 C1AB
23 C0AB
MDP0046
MDP0046
VINA+ 1
VINB+ 2
GND 3
IADJ 4
NC 5
VINC+ 6
VIND+ 7
FN7516 Rev 4.00
June 21, 2013
21 VS+
22 VS-
Page 1 of 11
ISL1539
Absolute Maximum Ratings
(T
A
= +25°C)
V
S
+ to V
S
- Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +30V
V
S
+ Voltage to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +30V
V
S
- Voltage to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -30V to +0.3V
Driver V
IN
+ Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
S
- to V
S
+
C
0
, C
1
Voltage to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
I
ADJ
Voltage to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +4V
Current into any Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8mA
Output Current from Driver (Static) . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
ESD Rating
Human Body Model (Per MIL-STD-883 Method 3015.7) . . . . . . . . . 3kV
Machine Model (Per EIAJ ED-4701 Method C-111) . . . . . . . . . . . . 250V
Thermal Information
Thermal Resistance (Typical)
JA
(°C/W)
JC
(°C/W)
24 Ld QFN Package . . . . . . . . . . . . . . . . . . .
38
N/A
Power Dissipation. . . . . . . . . . . . . . . . . . .See curves on page 8 and page 8
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . .-40°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted,
all tests are at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
Electrical Specifications
PARAMETER
V
S
= ±12V, R
F
= 3kΩ, R
L
= 65Ω, I
ADJ
= C
0
= C
1
= 0V, T
A
= +25°C. Amplifiers tested separately.
CONDITIONS
MIN
(Note 4)
TYP
MAX
(Note 4)
UNIT
DESCRIPTION
SUPPLY CHARACTERISTICS
I
S
+ (Full I
S
)
I
S
- (Full I
S
)
I
S
+ (3/4 I
S
)
I
S
- (3/4 I
S
)
I
S
+ (1/2 I
S
)
I
S
- (1/2 I
S
)
I
S
+ (Power-down)
I
S
- (Power-down)
I
GND
Positive Supply Current per Amplifier
Negative Supply Current per Amplifier
Positive Supply Current per Amplifier
Negative Supply Current per Amplifier
Positive Supply Current per Amplifier
Negative Supply Current per Amplifier
Positive Supply Current per Amplifier
Negative Supply Current per Amplifier
GND Supply Current per Amplifier
All outputs at 0V, C
0
= C
1
= 0V, R
ADJ
= 0
All outputs at 0V, C
0
= C
1
= 0V, R
ADJ
= 0
All outputs at 0V, C
0
= 5V, C
1
= 0V, R
ADJ
= 0
All outputs at 0V, C
0
= 5V, C
1
= 0V, R
ADJ
= 0
All outputs at 0V, C
0
= 0V, C
1
= 5V, R
ADJ
= 0
All outputs at 0V, C
0
= 0V, C
1
= 5V, R
ADJ
= 0
All outputs at 0V, C
0
= C
1
= 5V, R
ADJ
= 0
All outputs at 0V, C
0
= C
1
= 5V, R
ADJ
= 0
All outputs at 0V
-1.0
3.7
-6.2
7.5
-12.4
10
-9.9
7.5
-7.4
5.1
-5
0.1
0
0.1
6.3
-3.5
1.0
12.5
-7.4
mA
mA
mA
mA
mA
mA
mA
mA
mA
INPUT CHARACTERISTICS
V
OS
V
OS
I
B
+
I
B
-
I
B
-
R
OL
e
N
i
N
V
IH
Input Offset Voltage
V
OS
Mismatch
Non-Inverting Input Bias Current
Inverting Input Bias Current
I
B
- Mismatch
Transimpedance
Input Noise Voltage
-Input Noise Current
Input High Voltage
C
0
and C
1
inputs, with signal
C
0
and C
1
inputs, without signal
V
IL
I
IH0 ,
I
IH1
I
IL0,
I
IL1
Input Low Voltage
Input High Current for C
0,
C
1
Input Low Current for C
0
or C
1
C
0
and C
1
inputs
C
0
= 5V, C
1
= 5V
C
0
= 0V, C
1
= 0V
10
-15
1.8
1.6
0.8
40
-4.0
-2
-5
-10
-75
-15
0
3
2.7
19
+1
0
+2
+5
+10
+60
+15
mV
mV
µA
µA
µA
MΩ
nV/Hz
pA/Hz
V
V
V
µA
µA
FN7516 Rev 4.00
June 21, 2013
Page 2 of 11
ISL1539
Electrical Specifications
PARAMETER
V
S
= ±12V, R
F
= 3kΩ, R
L
= 65Ω, I
ADJ
= C
0
= C
1
= 0V, T
A
= +25°C. Amplifiers tested separately. (Continued)
CONDITIONS
MIN
(Note 4)
TYP
MAX
(Note 4)
UNIT
DESCRIPTION
OUTPUT CHARACTERISTICS
V
OUT
Loaded Output Swing
(R
L
Single-ended to GND)
R
L
= 100Ω
R
L
= 50Ω(+)
R
L
= 50Ω (-)
R
L
= 25Ω (+)
R
L
= 25Ω (-)
I
OL
I
OUT
Linear Output Current
Output Current
A
V
= 5, R
L
= 10Ω f = 100kHz, THD = -60dBc (10Ω
single-ended)
V
OUT
= 1V, R
L
= 1Ω
9.8
10.65
±11.1
10.95
-10.95
10.7
-10.7
450
1
-9.2
-10.55
V
V
V
V
V
mA
A
DYNAMIC PERFORMANCE
BW
HD2 at 200kHz
HD3 at 200kHz
THD at 200kHz
HD2 at 1MHz
-3dB Bandwidth
2nd Harmonic Distortion at 200kHz
3rd Harmonic Distortion at 200kHz
Total Harmonic Distortion at 200kHz
2nd Harmonic Distortion at 1MHz
A
V
= +10
f
C
= 200kHz, R
L
= 100Ω, V
OUT
= 2V
P-P
f
C
= 200kHz, R
L
= 100Ω, V
OUT
= 2V
P-P
f
C
= 200kHz, R
L
= 100Ω, V
OUT
= 2V
P-P
f
C
= 1MHz, R
L
= 100ΩV
OUT
= 2V
P-P
f
C
= 1MHz, R
L
= 25ΩV
OUT
= 2V
P-P
HD3 at 1MHz
3rd Harmonic Distortion at 1MHz
f
C
= 1MHz, R
L
= 100ΩV
OUT
= 2V
P-P
f
C
= 1MHz, R
L
= 25ΩV
OUT
= 2V
P-P
THD at 1MHz
MTPR
SR
Total Harmonic Distortion at 1MHz
Multi-Tone Power Ratio
Slewrate (single-ended)
f
C
= 1MHz, R
L
= 100Ω V
OUT
= 2V
P-P
26kHz to 1.1MHz, R
LINE
= 100Ω,
P
LINE
= 20.4dBM
V
OUT
from -8V to +8V measured at ±4V
80
-90
-94
-89
-86
-80
-90
-75
-85
-70
500
MHz
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
V/µs
NOTE:
4. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
FN7516 Rev 4.00
June 21, 2013
Page 3 of 11
ISL1539
Pin Descriptions
ISL1539IR
(QFN24)
1
PIN NAME
VINA+
FUNCTION
Amplifier A non-inverting input
V
S
+
CIRCUIT
V
S
-
CIRCUIT 1
2
3
4
VINB+
GND
IADJ (Note 5)
Amplifier B non-inverting input
Ground connection
Supply current control pin for both
DSL channels #1 and #2
(Reference Circuit 1)
V
S
+
I
ADJ
V
S
-
GND
CIRCUIT 2
5
6
7
8
NC
VINC+
VIND+
C1CD (Note 6)
Not connected
Amplifier C non-inverting input
Amplifier D non-inverting input
DSL channel #2 current control pin
V
S
+
1K
V
S
+
(Reference Circuit 1)
(Reference Circuit 1)
C
OAB
V
S
-
I
ADJ
CIRCUIT 3
9
10, 22
11, 21
12
13
14
15
16
17
C0CD (Note 6)
VS-
VS+
VOUTD
VIND-
VINC-
VOUTC
NC/SHIELD
VOUTB
DSL channel #2 current control pin
Negative supply
Positive supply
Amplifier D output
Amplifier D inverting input
Amplifier C inverting input
Amplifier C output
(Reference Circuit 3)
(Reference Circuit 1)
(Reference Circuit 1)
(Reference Circuit 1)
(Reference Circuit 1)
Amplifier B output
(Reference Circuit 1)
FN7516 Rev 4.00
June 21, 2013
Page 4 of 11
ISL1539
Pin Descriptions
(Continued)
ISL1539IR
(QFN24)
18
19
20
23
24
NOTES:
5. I
ADJ
controls bias current (I
S
) setting for both DSL channels.
6. Amplifiers C and D comprise DSL channel #2. C
0CD
and C
1CD
control I
S
settings for DSL channel #2.
7. Amplifiers A and B comprise DSL channel #1. C
0AB
and C
1AB
control I
S
settings for DSL channel #1.
PIN NAME
VINB-
VINA-
VOUTA
C0AB (Note 7)
C1AB (Note 7)
FUNCTION
Amplifier B inverting input
Amplifier A inverting input
Amplifier A output
DSL channel #1 current control pin
DSL channel #1 current control pin
CIRCUIT
(Reference Circuit 1)
(Reference Circuit 1)
(Reference Circuit 1)
(Reference Circuit 3)
(Reference Circuit 3)
Typical Performance Curves
V
S
= ±12V
C
L
= 1.8pF
A
V
= +12.4
R
L
= 100Ω
R
F
= 2kΩ
V
S
= ±12V
C
L
= 1.8pF
A
V
= +12.4
R
L
= 100Ω
R
F
= 2kΩ
R
F
= 3kΩ
R
F
= 3kΩ
R
F
= 5kΩ
R
F
= 5kΩ
FIGURE 1. FREQUENCY RESPONSE FOR VARIOUS R
F
(FULL
POWER MODE)
FIGURE 2. FREQUENCY RESPONSE FOR VARIOUS R
F
(HALF
POWER MODE)
V
S
= ±12V
R
F
= 5kΩ
A
V
= +12.4
R
L
= 100Ω
C
L
= 100pF
C
L
= 47pF
V
S
= ±12V
A
V
= +12.4
C
L
= 27pF
R
L
= 100Ω
R
F
= 3.48kΩ
C
L
= 22pF
C
L
= 1.8pF
R
F
= 4.99kΩ
FIGURE 3. FREQUENCY RESPONSE FOR VARIOUS C
L
(FULL POWER MODE)
FIGURE 4. COMMON MODE FREQUENCY RESPONSE FOR
VARIOUS R
F
(FULL POWER MODE)
FN7516 Rev 4.00
June 21, 2013
Page 5 of 11
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