MAX3761(2004) 查看數據表（PDF） - Maxim Integrated

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MAX3761
(Rev.:2004)

Low-Power, 622Mbps Limiting Amplifiers with Chatter-Free Power Detect for LANs

Maxim Integrated 

Low-Power, 622Mbps Limiting Amplifiers

with Chatter-Free Power Detect for LANs

____________________________Typical Operating Characteristics (continued)

(MAX3761/MAX3762 EV kit, VCC = +5.0V, PECL outputs terminated with 50Ω to VCC - 2V, input is a 1-0 pattern, 622Mbps, TA = +25°C,

unless otherwise noted.)

DATA OUTPUT SINGLE-ENDED

(223-1 PRBS PATTERN)

INPUT = 2Vp-p

TA = +85°C

50mV/

div

200mV/

div

RANDOM JITTER

DIFFERENTIAL OUTPUT

(OUT+ - OUT-)

INPUT = 16mVp-p

TA = +27°C

1-0 PATTERN 622Mbps

RANDOM JITTER vs.

POWER-SUPPLY NOISE FREQUENCY

10

DIFFERENTIAL OUTPUT RANDOM JITTER

DATA INPUT AMPLITUDE = 16mVp-p

INPUT AMPLITUDE

8 POWER SUPPLY = 100mVp-p

6

4

500ps/div

200ps/div

2

103

104

105

106

FREQUENCY ON POWER SUPPLY (Hz)

______________________________________________________________Pin Description

PIN

1

2

3

4, 17

5

6

7

8

9

10

11

12

13

14

15

16

18

19

20

NAME

FILTER

RSSI

EN

VCC

VIN+

VIN-

GND

SUB

CZP

CZN

INV

VTH

GNDO

OUT-

OUT+

VCCO

LOS-

LOS+

DISABLE

FUNCTION

Sets the integration frequency of the power detector. Impedance at this node is approximately 500Ω.

Received-Signal-Strength Indicator. An analog DC voltage representing the input power.

Connect to VCC.

+5V Power Supply

Positive Input Data

Negative Input Data

Supply Ground

Substrate. Connect to ground.

Sets input offset correction, low-frequency cutoff.

Sets input offset correction, low-frequency cutoff.

Negative Input to Op Amp. Used for programming the loss-of-signal threshold.

Loss-of-Signal Threshold Voltage

Ground Power Supply for Output Buffers

Negative PECL Data Output

Positive PECL Data Output

+5V Power Supply for Output Buffers

Negative Loss-of-Power Flag, TTL (MAX3761) or PECL (MAX3762)

Positive Loss-of-Power Flag, TTL (MAX3761) or PECL (MAX3762)

Disables the data outputs when high. TTL (MAX3761) or PECL (MAX3762).

_______________________________________________________________________________________ 5

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