Datasheet

_______________________________________________________________________________________ 7
MAX3945
1.0625Gbps to 11.3Gbps,
SFP+ Dual-Path Limiting Amplifier
Typical Operating Characteristics
(V
CC
= 3.3V, T
A
= +25NC, unless otherwise noted. Registers are set to default values, unless otherwise noted, and the 3-wire interface
is static during measurements.)
RECEIVE OUTPUT FROM OPTICAL SYSTEM,
10.32Gbps, OPTICAL INPUT -10dBm,
RXDE1 = 1, RXDE0 = 0
MAX3945 toc01
RECEIVE OUTPUT FROM OPTICAL SYSTEM,
10.32Gbps, OPTICAL INPUT -15dBm,
RXDE1 = 1, RXDE0 = 0
MAX3945 toc02
RECEIVE OUTPUT FROM OPTICAL SYSTEM,
10.32Gbps, OPTICAL INPUT -20dBm,
RXDE1 = 1, RXDE0 = 0
MAX3945 toc03
OPTICAL BER CURVES (NEC NR3312)
MAX3945 toc04
AVERAGE POWER dBm (Er~12dB)
BER
-22-23-26 -25 -24
1.00E-11
1.00E-10
1.00E-09
1.00E-08
1.00E-07
1.00E-06
1.00E-05
1.00E-04
1.00E-03
1.00E-02
1.00E-01
1.00E-12
-27
-21
10.3Gbps, PRBS31, RATE_SEL = 1
4.5Gbps, PRBS9, RATE_SEL = 1
8.5Gbps, PRBS9, RATE_SEL = 1
4.5Gbps, PRBS9, RATE_SEL = 0,
BW1 = 1, BW0 = 1
1.25Gbps, PRBS9, RATE_SEL = 0,
BW1 = 1, BW0 = 1
1.25Gbps, PRBS9, RATE_SEL = 0, BW1 = 0, BW0 = 0
K28.5 PATTERN AT 1.25Gbps,
SET_CML[7:0] = 169d,
RATE_SEL = 0, BW0 = 0, BW1 = 0
MAX3945 toc05
200ps/div
100mV/div
K28.5 PATTERN AT 4.25Gbps,
SET_CML[7:0] = 169d,
RATE_SEL = 0, BW0 = 1, BW1 = 1
MAX3945 toc06
50ps/div
100mV/div
K28.5 PATTERN AT 8.5Gbps, SET_CML[7:0] = 148d,
RATE_SEL = 1, RXDE_EN = 0
MAX3945 toc07
20ps/div
100mV
P-P
K28.5 PATTERN AT 10.3Gbps,
SET_CML[7:0] = 148d,
RATE_SEL = 1, RXDE_EN = 0
MAX3945 toc08
18ps/div
100mV
P-P
K28.5 PATTERN AT 11.3Gbps,
SET_CML[7:0] = 148d,
RATE_SEL = 1, RXDE_EN = 0
MAX3945 toc09
18ps/div
100mV
P-P