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ISL1591 の電気的特性と機能

ISL1591のメーカーはIntersilです、この部品の機能は「VDSL2 Line Driver」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL1591
部品説明 VDSL2 Line Driver
メーカ Intersil
ロゴ Intersil ロゴ 




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ISL1591 Datasheet, ISL1591 PDF,ピン配置, 機能
Fixed Gain, Dual Port, VDSL2 Line Driver
ISL1591
The ISL1591 provides 4 internal wideband op amps intended
to be used as two pairs of fixed gain differential line drivers.
The ISL1591’s high bandwidth, and ultra low distortion
enables the support of VDSL2 8b, 17a, and 30a in central
office modem applications. This highly versatile line driver
allows for operation from +14V to +24V nominal power
supplies, while delivering exceptional MTPR distortion
performance.
Using a single +24V supply, the ISL1591 MBPR distortion is
below -62dBc in VDSL2 8b, -63dBc in VDSL2 17a, and -60dBc
in VDSL2 30a profiles. Using a single +14V supply, ISL1591
supports 14.5dBm VDSL2 17a and 30a profiles at only a
power consumption of 425mW. This capability is ideal for
short loop, high bit rate VDSL2 applications where 14.5dBm
transmit power is all that is required. For full power VDSL2 8b
profile with 20dBm of transmit power, the line driver will
require +24V single supply.
Each of the 4 internal op amps is a wideband current feedback
amplifier offering very high slew rate intrinsic to that design
using low quiescent current levels. Each of the two pair of
amplifiers (ports) can also be power optimized to the
application using two external quiescent control logic pins. Full
power is nominally 14mA/port with options of medium power
cutback to 9.7mA/port, a low power condition at 7.4mA/port,
and an off state at <0.5mA/port.
High power push/pull line driver applications are best
supported using a low headroom, high output current device.
On +24V supplies, the ISL1591 offers a 1.6V headroom with
>360mA peak output current. Driving differentially, this gives
>42.4VP-P swing to as low as 58Ω differential load. The four
amplifiers in ISL1591 are intended to be used as differential
pairs and not as individual amplifiers.
Features
• Internal Fixed Gain of 11.6V/V at RLOAD
±360mA Output Drive Capability
• 42.4VP-P Differential Output Drive into 82.6Ω
• -62dBc MBPR (VDSL 8b Profile)
• -65dBc US1, -63dBc US2 MBPR (VDSL2 17a Profile)
• -64dBc US1, -62dBc US2, -60dBc US3 MBPR (VDSL 30a
Profile)
• High Slew Rate of 2000V/µs Differential
• Bandwidth (170MHz)
• Supply Current Control Pins
• K.20, GR-1089 Surge Robustness Validated
• Pb-Free (RoHS Compliant)
Applications
• ADSL2+
• VDSL2 Profiles: 8MHz, 17MHz, and 30MHz
Related Literature
AN1325 “Choosing and Using Bypass Capacitors”
PART #
ISL1557
ISL1536
ISL1539A
TABLE 1. ALTERNATE SOLUTIONS
NOMINAL ±VCC
(V)
BANDWIDTH
(MHz)
APPLICATIONS
±6,+12
200
VDSL2
±12,+24
50
ADSL2+
±12,+24
240
VDSL2
+24V
AFE Vi VCM 1/2
ISL1591
Rb 1:N
Vo
100Ω
LINE
Rb
Rb
=
100Ω
N2
x 0.2
x
0.5
Vo
Vi
= 11.6 V V
FIGURE 1. FIXED GAIN LINE DRIVER CIRCUIT
10
0 PAR = 5.4
-10
20.2dBm
Avg. US1 MTBR = -65dBc
-20
-30
-40
-50
-60
-70
-80
-903.75M
4.15M
4.55M
4.95M
FREQUENCY (Hz)
FIGURE 2. MBPR VDSL2 8b PERFORMANCE
5.35M
October 31, 2012
FN7625.1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2011, 2012. 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.

1 Page





ISL1591 pdf, ピン配列
ISL1591
Pin Descriptions
PIN NUMBER
1
2
3
4
5
6
7
8
9
10
11
12
13
14, 15, 16, 17
18
19
20
21
22
23
24
-
PIN NAME
VINA+
VINB+
VCMAB
VCMCD
VINC+
VIND+
C1CD
C0CD
FBD
VOUTD
VOUTC
FBC
GND
DNC
+VS
FBB
VOUTB
VOUTA
FBA
C0AB
C1AB
THERMAL PAD
FUNCTION
Amplifier A non-inverting input
Amplifier B non-inverting input
Input common mode bias for port AB(#1)
Input common mode bias for port CD(#2)
Amplifier C non-inverting input
Amplifier D non-inverting input
DSL Port #2 current control pin
DSL Port #2 current control pin
Feedback pin for amplifier D
Amplifier D output
Amplifier C output
Feedback pin for amplifier C
Ground
Do not connect
Positive supply voltage
Feedback pin for amplifier B
Amplifier B output
Amplifier A output
Feedback pin for amplifier A
DSL Port #1 current control pin
DSL Port #1 current control pin
Connects to GND
Ordering Information
PART
NUMBER
(Notes 2, 3)
PART
MARKING
TEMP RANGE
(°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL1591IRTZ
15 91IRTZ
-40 to +85
24 Ld TQFN
L24.4x4F
ISL1591IRTZ-T7 (Note 1)
15 91IRTZ
-40 to +85
24 Ld TQFN
L24.4x4F
ISL1591IRTZ-T13 (Note 1)
15 91IRTZ
-40 to +85
24 Ld TQFN
L24.4x4F
ISL1591IRTZ-EVALZ
Evaluation Board
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 ISL1591. For more information on MSL please see tech brief TB363.
3 FN7625.1
October 31, 2012


3Pages


ISL1591 電子部品, 半導体
ISL1591
Typical Performance Curves VCC = +24V, Rb = 8.25Ω, GND at the Load = 11.6V/V (differential),
RLOAD = 82.5Ω, TA +25°C, C0 = C1 = 0V (full power) unless otherwise noted.
30 27
27
24 Rb = 6.2Ω Rb = 8.25Ω
24
1VP-P
21
18
Rb = 15Ω
15
12
9
21 2VP-P
18
10VP-P
5VP-P
15 20VP-P
6 100k
1M
10M
100M
FREQUENCY (Hz)
1G
FIGURE 4. SMALL SIGNAL FREQUENCY RESPONSE vs GAIN AT
THE LOAD
12
100k
1M
10M
100M
FREQUENCY (Hz)
1G
FIGURE 5. LARGE SIGNAL FREQUENCY RESPONSE
-30
-40
-50
-60
3rd HD dBc
-70 THD dBc
-80
-90
2nd HD dBc
-100 0
5 10 15 20 25 30
OUTPUT AMPLITUDE AT LOAD (VP-P(-d))
35
FIGURE 6. 1MHz HARMONIC DISTORTION vs OUTPUT AMPLITUDE
-30
-40
-50
-60
THD dBc
-70
-80
2nd HD dBc
-90 3rd HD dBc
-100 0 5 10 15 20 25 30 35
VOP-P(-d) AT THE LOAD
FIGURE 7. 4MHz HARMONIC DISTORTION vs OUTPUT AMPLITUDE
-30
-40
-50
THD dBc
-60
-70
-80 2nd HD dBc
-90
3rd HD dBc
-100 0
5 10 15 20 25 30 35
OUTPUT AMPLITUDE AT LOAD (VOP-P(-d))
FIGURE 8. 8MHz HARMONIC DISTORTION vs OUTPUT AMPLITUDE
-30
-40 5VOP-P
-50
-60
THD dBc
3rd HD dBc
-70
2nd HD dBc
-80
-90
-100 0 2M 4M 6M 8M 10M 12M 14M 16M 18M 20M
FREQUENCY (Hz)
FIGURE 9. HARMONIC DISTORTION vs FREQUENCY
6 FN7625.1
October 31, 2012

6 Page



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部品番号部品説明メーカ
ISL1591

VDSL2 Line Driver

Intersil
Intersil


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