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MAX3761 Datasheet(PDF) 5 Page - Maxim Integrated Products

Part No. MAX3761
Description  Low-Power, 622Mbps Limiting Amplifiers with Chatter-Free Power Detect for LANs
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX3761 Datasheet(HTML) 5 Page - Maxim Integrated Products

 
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Low-Power, 622Mbps Limiting Amplifiers
with Chatter-Free Power Detect for LANs
_______________________________________________________________________________________
5
____________________________Typical Operating Characteristics (continued)
(MAX3761/MAX3762 EV kit, VCC = +5.0V, PECL outputs terminated with 50
Ω to VCC - 2V, input is a 1-0 pattern, 622Mbps, TA = +25°C,
unless otherwise noted.)
______________________________________________________________Pin Description
NAME
FUNCTION
1
FILTER
Sets the integration frequency of the power detector. Impedance at this node is approximately 500
Ω.
2
RSSI
Received-Signal-Strength Indicator. An analog DC voltage representing the input power.
PIN
50mV/
div
500ps/div
DATA OUTPUT SINGLE-ENDED
(223-1 PRBS PATTERN)
INPUT = 2Vp-p
TA = +85°C
200mV/
div
200ps/div
RANDOM JITTER
DIFFERENTIAL OUTPUT
(OUT+ - OUT-)
INPUT = 16mVp-p
TA = +27°C
1-0 PATTERN 622Mbps
104
105
106
103
FREQUENCY ON POWER SUPPLY (Hz)
10
8
4
2
6
RANDOM JITTER vs.
POWER-SUPPLY NOISE FREQUENCY
DIFFERENTIAL OUTPUT RANDOM JITTER
DATA INPUT AMPLITUDE = 16mVp-p
INPUT AMPLITUDE
POWER SUPPLY = 100mVp-p
3
EN
Connect to VCC.
4, 17
VCC
+5V Power Supply
5
VIN+
Positive Input Data
6
VIN-
Negative Input Data
7
GND
Supply Ground
8
SUB
Substrate. Connect to ground.
9
CZP
Sets input offset correction, low-frequency cutoff.
10
CZN
Sets input offset correction, low-frequency cutoff.
11
INV
Negative Input to Op Amp. Used for programming the loss-of-signal threshold.
12
VTH
Loss-of-Signal Threshold Voltage
13
GNDO
Ground Power Supply for Output Buffers
14
OUT-
Negative PECL Data Output
15
OUT+
Positive PECL Data Output
16
VCCO
+5V Power Supply for Output Buffers
18
LOS-
Negative Loss-of-Power Flag, TTL (MAX3761) or PECL (MAX3762)
19
LOS+
Positive Loss-of-Power Flag, TTL (MAX3761) or PECL (MAX3762)
20
DISABLE
Disables the data outputs when high. TTL (MAX3761) or PECL (MAX3762).


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