Datasheet

MAX3982
SFP Copper-Cable Preemphasis Driver
_______________________________________________________________________________________ 7
15m 24AWG CABLE ASSEMBLY
OUTPUT WITHOUT MAX3982,
4.25Gbps CJTPAT
MAX3982 toc11
15m 24AWG CABLE ASSEMBLY
OUTPUT WITH MAX3982
PREEMPHASIS, 4.25Gbps CJTPAT
MAX3982 toc12
PREEMPHASIS, PE[1,0] = 11, OUTLEV = HIGH
40mV/div
DETERMINISTIC JITTER
vs. CABLE LENGTH
MAX3982 toc13
CABLE LENGTH (m)
DETERMINISTIC JITTER (UI)
105
0.2
0.4
0.6
0.8
1.0
0
015
4.25Gbps
PRBS7 + 100CID
PE[1,0] = 00
PE[1,0] = 01
PE[1,0] = 10
PE[1,0] = 11
15m 24AWG CABLE ASSEMBLY
OUTPUT WITHOUT MAX3982,
4.25Gbps PRBS7 + 100CID
MAX3982 toc14
15m 24AWG CABLE ASSEMBLY
OUTPUT WITH MAX3982
PREEMPHASIS, 4.25Gbps PRBS7 + 100CID
MAX3982 toc15
PREEMPHASIS, PE[1,0] = 11, OUTLEV = HIGH
40mV/div
OUTPUT RETURN LOSS
vs. FREQUENCY
MAX3982 toc16
FREQUENCY (MHz)
DIFFERENTIAL S22 (dB)
1000
-35
-30
-25
-20
-15
-10
-5
0
-40
100 10,000
USING AGILENT 8720ES AND ATN MICROWAVE
ATN-4112A S-PARAMETER TEST SET
DE-EMBEDDING SMA CONNECTOR, COUPLING
CAPACITOR, AND 1cm TRACE
Typical Operating Characteristics (continued)
(V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted. PRBS7 + 100CID pattern is PRBS 2
7
, 100 zeros, 1010, PRBS 2
7
, 100 ones, 0101.)