ADSL Drivers/Receivers for Customer Premise

Equipment

8

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Detailed Description

The MAX4361/MAX4362/MAX4363 are a family of high-

performance ADSL drivers and drivers/receivers ideal

for the upstream transmit path and the downstream

receive path of customer premise equipment. These

devices operate from a single 5V supply and deliver up

to 12.5dBm average line power for DMT modulated sig-

nals, meeting the requirements of full-rate ADSL. SFDR

at full output power is typically -75dBc at 100kHz.

Differential In/Differential Out ADSL Driver

(MAX4361)

The MAX4361 is a differential line driver with a fixed

gain of 3.1V/V. The gain is set by three internal resistors.

Uncommitted Dual Amplifier for ADSL

Driver (MAX4362)

The MAX4362 is a dual amplifier with shutdown intend-

ed for use as a differential IN/differential OUT driver

with gain set with external resistors

Uncommitted Quad Amplifier for ADSL

Driver/Receiver (MAX4363)

The MAX4363 is a quad amplifier with shutdown intended

for use as a differential IN/differential OUT driver/receiver

combination with gain set with external resistors.

Shutdown

The MAX4362/MAX4363 feature a low-power shutdown

mode. When the SHDN pin is pulled high, the supply

current drops to 70µA, and the amplifier’s outputs are

placed in a high-impedance disable mode. Connect

SHDN to GND for normal operation.

PIN

NAME

FUNCTION

1

T1IN+

First Driver Noninverting Input

2

T1IN-

First Driver Inverting Input

3

SHDN

Shutdown. Connect to GND for normal operation.

4

T2IN-

Second Driver Inverting Input

5

T2IN+

Second Driver Noninverting Input

6

GND

Ground

7

R1IN+

First Receiver Noninverting Input

8

R1IN-

First Receiver Inverting Input

9

R2IN-

Second Receiver Inverting Input

10

R2IN+

Second Receiver Noninverting Input

11

R2OUT

Second Receiver Output

12

R1OUT

First Receiver Output

13

GND (RX)

Ground for Receiver Amplifiers

14

V+ (RX)

Positive Power-Supply Voltage for Receiver Amplifiers. Bypass V+ (RX) to GND (RX) with a

separate 0.1µF capacitor.

15

N.C.

No Connection. Not internally connected.

16, 20

GND (TX)

Ground for Driver Amplifier

17

T2OUT

Second Driver Output

18

V+ (TX)

Positive Power-Supply Voltage for Driver Amplifiers. Bypass V+ (TX) to GND (TX) with a

separate 0.1µF capacitor.

19

T1OUT

First Driver Output

MAX4363

Pin Descriptions (continued)