AD8016ARP-EVAL Analog Devices, AD8016ARP-EVAL Datasheet

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AD8016ARP-EVAL

Manufacturer Part Number
AD8016ARP-EVAL
Description
Low Power, High Output Current xDSL Line Driver
Manufacturer
Analog Devices
Datasheet
a
PRODUCT DESCRIPTION
The AD8016 high output current dual amplifier is designed
for the line drive interface in Digital Subscriber Line systems
such as ADSL, HDSL2, and proprietary xDSL systems. The
drivers are capable, in full-bias operation, of providing 24.4 dBm
output power into low resistance loads, enough to power a
20.4 dBm line, including hybrid insertion loss.
549.3 550.3 551.3 552.3 553.3 554.3 555.3 556.3 557.3 558.3 559.3
FREQUENCY – kHz
–75dBc
±
The AD8016 is available in a low cost 24-lead SOIC, a ther-
mally enhanced 20-lead PSOP, and a 28-lead HTSSOP with
an exposed leadframe (ePAD). Operating from ±12 V supplies,
the AD8016 requires only 1.5 W of total power dissipation
(refer to the Power Dissipation section for details) while driving
20.4 dBm of power downstream using the xDSL hybrid in Figure
33a and Figure 33b. Two digital bits (PWDN0, PWDN1) allow
the driver to be capable of full performance, an output “keep-alive
state,” or two intermediate bias states. The “keep-alive” state
biases the output transistors enough to provide a low imped-
ance at the amplifier outputs for back termination.
The low power dissipation, high output current, high output voltage
swing, flexible power-down, and robust thermal packaging enable
the AD8016 to be used as the Central Office (CO) terminal driver
in ADSL, HDSL2, VDSL, and proprietary xDSL systems.
Low Power, High Output Current
PWDN0
V
DGND
V
V
OUT
INN
INP
+V1
–V1
NC
NC
NC
20-Lead PSOP3
1
1
1
NC = NO CONNECT
10
1
2
3
4
5
6
7
8
9
(RP-20)
AD8016
V
V
PIN CONFIGURATION
+V
–V
–V
+V
OUT
OUT
+V2
+V1
20
19
18
17
16
15
14
13
12
11
NC
NC
NC
IN
IN
NC
NC
NC
IN
IN
28-Lead HTSSOP
2
2
2
1
1
1
+V2
V
V
V
NC
NC
NC
PWDN1
BIAS
–V2
NC = NO CONNECT
OUT
INN
INP
10
11
12
13
14
1
2
3
4
5
6
7
8
9
AD8016ARE
2
2
2
(RE-28)
xDSL Line Driver
PWDN0
V
AGND
AGND
AGND
AGND
DGND
V
V
OUT
INN
INP
+V1
–V1
NC
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
1
1
24-Lead Batwing
NC = NO CONNECT
10
11
12
NC
NC
NC
NC
PWDN1
BIAS
–V2
–V1
DGND
NC
PWDN0
NC
NC
NC
1
2
3
4
5
6
7
8
9
(RB-24)
AD8016
AD8016
24
23
22
21
20
19
18
17
16
15
14
13
AGND
+V2
V
V
V
AGND
AGND
AGND
PWDN1
BIAS
–V2
NC
OUT
INN
INP
2
2
2

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AD8016ARP-EVAL Summary of contents

Page 1

PRODUCT DESCRIPTION The AD8016 high output current dual amplifier is designed for the line drive interface in Digital Subscriber Line systems such as ADSL, HDSL2, and proprietary xDSL systems. The drivers are capable, in full-bias operation, of providing 24.4 ...

Page 2

AD8016–SPECIFICATIONS Parameter DYNAMIC PERFORMANCE –3 dB Bandwidth Bandwidth for 0.1 dB Flatness Large Signal Bandwidth Peaking Slew Rate Rise and Fall Time Settling Time Input Overdrive Recovery Time NOISE/DISTORTION PERFORMANCE Distortion, Single-Ended 2nd Harmonic 3rd Harmonic 1 Multitone Power Ratio ...

Page 3

C, V SPECIFICATIONS T MAX Parameter DYNAMIC PERFORMANCE –3 dB Bandwidth Bandwidth for 0.1 dB Flatness Large Signal Bandwidth Peaking Slew Rate Rise and Fall Time Settling Time Input Overdrive Recovery Time NOISE/DISTORTION PERFORMANCE Distortion, Single-Ended 2nd Harmonic ...

Page 4

... JA 4 Specification is for device on a four-layer board with 9 inches 85°C 28-lead (EPAD) package: θ = 29°C/W. JA Model AD8016ARP AD8016ARP-Reel AD8016ARP-EVAL AD8016ARB AD8016ARB-Reel AD8016ARB-EVAL AD8016ARE AD8016ARE-Reel AD8016ARE-EVAL CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. ...

Page 5

49 100mV OUT V = 20mV IN TIME – 100ns/DIV Ω OUT V = 800mV IN TIME – 100ns/DIV ...

Page 6

AD8016 – 499 F – + p-p O –50 –60 –70 –80 –90 –100 –110 0.01 0.1 1 FREQUENCY – MHz ± Ω – 499 F – +10 V ...

Page 7

R = 499 F – –40 –45 (0,0) –50 (0,1) –55 (1,0) –60 –65 –70 –75 PWDN 1,0 = (1,1) –80 0 100 200 300 400 PEAK OUTPUT CURRENT – mA ± Ω –30 –40 –50 ...

Page 8

AD8016 3 0 – 40mV p-p IN – 100 –9 L –12 –15 –18 –21 –24 – FREQUENCY – MHz 100 ...

Page 9

NOISE NOISE 100 1k 10k 100k FREQUENCY – MHz OUT R = 100 L +2mV (–0.1%) ...

Page 10

AD8016 V OUT –100 0 100 200 300 400 500 TIME – ns ± OUT –100 0 100 200 300 400 500 TIME – ns ± 25 PWDN 1,0 = [1,1] ...

Page 11

THEORY OF OPERATION The AD8016 is a current feedback amplifier with high (500 mA) output current capability. With a current feedback amplifier the current into the inverting input is the feedback signal and the open-loop behavior is that of a ...

Page 12

... SGS - THOMSON ). A typical shut- APPLICATIONS Q The AD8016ARP and AD8016ARB dual xDSL line driver amplifiers are the most efficient xDSL line drivers available to the market today. The AD8016 may be applied in driving modu- lated signals including Discrete Multitone (DMT) in either direction; upstream from Customer Premise Equipment (CPE) to the Central Office (CO) and downstream from CO to CPE ...

Page 13

... MTPR performance, sufficient for use in evaluating xDSL drivers. Note that the DMT waveforms available with the AD8016ARP-EVAL and AD8016ARB-EVAL boards or similar WFM files are needed to produce the neces- sary digital data required to drive the TxDAC from the optional TTL Digital Data output of the TEK AWG2021 ...

Page 14

... Thermal Resistance: The junction-to-case thermal resistance (θ the AD8016ARB or batwing package is 8.6°C/W, JC AD8016ARE is 5.6°C/W, and the AD8016ARP or PSOP3 package is 0.86°C/W. These package specifications were used in this study to determine junction temperature based on the mea- sured case temperature. PCB Dimensions of a Differential Driver Circuit: Several components are required to support the AD8016 in a differential driver circuit ...

Page 15

EXPERIMENTAL RESULTS The experimental data suggests that for both packages, and a PCB as small as 4.7 square inches, reasonable junction tempera- tures can be maintained even in the absence of air flow. The graph in Figure 42 shows junction ...

Page 16

AD8016 ...

Page 17

TP10 TP5 AGND3,4 R11 R13 R24 JP6 R23 1 R25 P4 3 JP5 AGND3,4,5 R14 S6 R16 R15 C10 ...

Page 18

AD8016 LAYOUT AD8016ARB-EVAL ...

Page 19

ALP – EVALUATION BOARD – BILL OF MATERIALS Qty. Description 10 µ Size Tantalum Chip Capacitor 5 0.1 µ 1206 Size Ceramic Chip Capacitor 10 49.9 Ω 1% 1/8 W 1206 Size Chip Resistor 2 100 ...

Page 20

AD8016 0.0433 (1.10) MAX 10 PIN 1 0.4370 (11.10) 0.4331 (11.00) 0.4252 (10.80) TOP VIEW 11 0.6299 (16.00) 0.6260 (15.90) 0.6220 (15.80) 0.1417 (3.60) SIDE VIEW 0.1319 (3.35) 0.1220 (3.10) SEATING 0.0500 0.0209 (0.53) PLANE (1.27) 0.0157 (0.40) BSC 0.0118 ...

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