el1508cm-t7 Intersil Corporation, el1508cm-t7 Datasheet

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el1508cm-t7

Manufacturer Part Number
el1508cm-t7
Description
Differential Dsl Line Driver
Manufacturer
Intersil Corporation
Datasheet
Differential DSL Line Driver
The EL1508 is designed for driving full rate ADSL signals in
both CO and CPE applications at very low power dissipation.
The high drive capability of 450mA makes this driver ideal
for both CAP and DMT designs. It contains two wideband,
high-voltage, current mode feedback amplifiers with a
number of power dissipation reduction features.
These drivers achieve an MTPR distortion measurement of
better than 70dB, while consuming typically 6mA of total
supply current. This supply current can be set using a
resistor on the I
also be used to adjust supply current to one of four pre-set
modes (full-I
EL1508 operates on ±5V to ±12V supplies and retains its
bandwidth and linearity over the complete supply range.
The device is supplied in a thermally-enhanced 20 Ld SOIC
(0.300”), a thermally-enhanced 16 Ld SOIC (0.150”), and the
small footprint (4x5mm) 24 Ld QFN packages. The EL1508
is specified for operation over the full -40°C to +85°C
temperature range.
Pinouts
VOUTA
VIN+A
VIN-A
GND*
GND*
GND*
GND*
VS-
C1
C0
S
[20 LD SOIC (0.300”)]
10
1
2
3
4
5
6
7
8
9
, 2/3-I
ADJ
+
A
TOP VIEW
CONTROL
POWER
EL1508
-
LOGIC
S
pin. Two other pins (C
, 1/3-I
- +
B
S
®
, and full power-down). The
20
19
18
17
16
15
14
13
12
11
1
VIN-B
VOUTB
VS+
GND*
GND*
GND*
GND*
VIN+B
IADJ
NC
Data Sheet
0
and C
*GND PINS ARE HEAT SPREADERS
VOUTA
VIN+A
VIN-A
GND*
GND*
1
) can
VS-
C1
C0
1-888-INTERSIL or 1-888-468-3774
[16 LD SOIC (0.150”)]
1
2
3
4
5
6
7
8
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
+
CONTROL
TOP VIEW
POWER
-
EL1508
LOGIC
- +
Features
• 450mA output drive capability
• 43.6V
• 2
• MTPR of -70dB
• Operates down to 3mA per amplifier supply current
• Power control features
• Pin-compatible with EL1503
• Pb-free plus anneal available (RoHS compliant)
Applications
• ADSL line driver
• HDSL line driver
• Video distribution amplifier
• Video twisted-pair line driver
16
15
14
13
12
11
10
9
nd
VIN-B
VOUTB
VS+
GND*
GND*
VIN+B
IADJ
NC
/3
March 26, 2007
rd
P-P
All other trademarks mentioned are the property of their respective owners.
harmonics of -85dBc/-75dBc
|
Copyright Intersil Americas Inc. 2001-2005, 2007. All Rights Reserved
differential output drive into 100Ω
Intersil (and design) is a registered trademark of Intersil Americas Inc.
GND
VS-
NC
NC
NC
NC
NC
1
2
3
4
5
6
7
(24 LD QFN)
TOP VIEW
THERMAL
EL1508
PAD
EL1508
FN7014.5
19
18
17
16
15
14
13
NC
NC
VS+
NC
NC
NC
GND

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el1508cm-t7 Summary of contents

Page 1

Data Sheet Differential DSL Line Driver The EL1508 is designed for driving full rate ADSL signals in both CO and CPE applications at very low power dissipation. The high drive capability of 450mA makes this driver ideal for both ...

Page 2

... EL1508CSZ (See Note) EL1508CSZ EL1508CSZ-T7 (See Note) EL1508CSZ EL1508CSZ-T13 (See Note) EL1508CSZ EL1508CM EL1508CM EL1508CM-T13 EL1508CM EL1508CMZ (See Note) EL1508CMZ EL1508CMZ-T13 (See Note) EL1508CMZ EL1508CL 1508CL EL1508CL-T7 1508CL EL1508CL-T13 1508CL EL1508CLZ (See Note) 1508CLZ EL1508CLZ-T7 (See Note) 1508CLZ EL1508CLZ-T13 (See Note) 1508CLZ NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets ...

Page 3

Absolute Maximum Ratings ( Supply Voltage -0.3V to 28V ...

Page 4

Electrical Specifications V = ±12V PARAMETER DESCRIPTION OUTPUT CHARACTERISTICS V Loaded Output Swing OUT I Linear Output Current OL I Output Current OUT DYNAMIC PERFORMANCE Bandwidth HD2 2nd Harmonic Distortion HD3 3rd Harmonic Distortion MTPR ...

Page 5

Pin Descriptions 16 Ld SOIC 20 Ld SOIC (0.150") (0.300" QFN ...

Page 6

Typical Performance Curves =2kΩ =±12V S R =100Ω =2.5kΩ R =0Ω F ADJ 20 R =3kΩ 100K 1M 10M FREQUENCY (Hz) FIGURE 1. DIFFERENTIAL FREQUENCY RESPONSE ...

Page 7

... V R =100Ω (kΩ) ADJ FIGURE 11. PEAKING EL1508 (Continued) 100pF 68pF 0pF 10M 100M FIGURE 8. EL1508CM SINGLE-ENDED CONFIGURATION L 150pF 100pF 62pF 39pF 22pF 5pF 10M 100M ADJ 26 V =±12V S R =3kΩ ...

Page 8

Typical Performance Curves 10K 100K 1M FREQUENCY (Hz) FIGURE 13. OUTPUT IMPEDANCE 100 CURRENT NOISE 10 VOLTAGE NOISE 1 10 100 1K FREQUENCY (Hz) FIGURE 15. VOLTAGE AND CURRENT NOISE vs FREQUENCY 0.30 V =±12V ...

Page 9

Typical Performance Curves - 24 Ld QFN Package FREQ=1MHz -10 V =± SET R =100Ω L GAIN=10 -30 -50 -70 - (V) OUTP-P FIGURE 19. HARMONIC DISTORTION TEST (1/3 POWER ...

Page 10

Typical Performance Curves - 20 Ld SOIC (0.300") Package 0 FREQ=1MHz V =± SET -20 R =100Ω L GAIN=10 -40 HD2 -60 HD3 - (V) OUTP-P FIGURE 25. HARMONIC DISTORTION ...

Page 11

... S R =6.81kΩ SET -20 R =100Ω L GAIN=10 - -60 - (V) OUTP-P FIGURE 33. EL1508CM HARMONIC DISTORTION vs DIFFERENTIAL OUTPUT VOLTAGE (FULL POWER MODE) V OUT 40ns/DIV FIGURE 35. DISABLE TIME 11 EL1508 FIGURE 32. EL1508CL HARMONIC DISTORTION TEST FIGURE 34 ...

Page 12

Typical Performance Curves 21.6 21.4 21.2 21.0 20.8 20 110 130 DIFFERENTIAL LOAD RESISTANCE (Ω) FIGURE 37. LOAD RESISTANCE vs OUTPUT VOLTAGE (ALL POWER MODES SUPPLY ...

Page 13

Applications Information The EL1508 consists of two high-power line driver amplifiers that can be connected for full duplex differential line transmission. The amplifiers are designed to be used with signals up to 4MHz and produce low distortion levels. The EL1508 ...

Page 14

quiescent output-stage × ( × ) × – OUT-RMS ...

Page 15

... TOP (16 Ld SO) INTERNAL GROUND PLANE (16 Ld SO) EL1508CM PCB Layout Considerations The 20 Ld SOIC (0.300") Power Package is designed so that heat may be conducted away from the device in an efficient manner. To disperse this heat, the center four leads on either side of the package are internally fused to the mounting platform of the die ...

Page 16

... Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...

Page 17

Small Outline Package Family (SO PIN #1 I.D. MARK 0.010 SEATING PLANE 0.004 C 0.010 MDP0027 SMALL OUTLINE PACKAGE FAMILY (SO) SYMBOL SO-8 SO-14 ...

Page 18

QFN (Quad Flat No-Lead) Package Family PIN #1 3 I.D. MARK 2X 0.075 C TOP VIEW 0. (E2) 7 (D2) BOTTOM VIEW 0. SEATING PLANE 0.08 C ...

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