Rainbow Electronics MAX3798 - Manual (Page 9)

MAX3798
1.0625Gbps to 10.32Gbps, Integrated, Low-
Power SFP+ Limiting Amplifier and VCSEL Driver
_______________________________________________________________________________________ 9
RANDOM JITTER
vs. INPUT AMPLITUDE
MAX3798 toc01
INPUT AMPLITUDE (mV P-P )
RANDOM JITTER (ps)
1000 800 600 400 200
310
320
330
340
350
360
370
300
0 1200
AT 4.25Gbps MODE_SEL = 0
AT 8.5Gbps MODE_SEL = 1
DETERMINISTIC JITTER
vs. INPUT AMPLITUDE AT 4.25Gbps
MAX3798 toc02
INPUT AMPLITUDE (mV P-P )
DETERMINISTIC JITTER (ps)
1000 800 600 400 200
4
5
6
7
8
9
10
11
12
3
0 1200
PATTERN = k28.5, MODE_SELECT = 0
SLEW_RATE = 0
SLEW_RATE = 1
DETERMINISTIC JITTER
vs. INPUT AMPLITUDE
MAX3798 toc03
INPUT AMPLITUDE (mV P-P )
DETERMINISTIC JITTER (ps)
1000 800 600 400 200
2
3
4
5
6
7
1
0 1200
PATTERN = PRBS, MODE_SEL = 1
AT 8.5Gbps
AT 10.32Gbps
DETERMINISTIC JITTER
vs. DATA RATE
MAX3798 toc04
DATA RATE (Gbps)
DETERMINISTIC JITTER (ps)
10 8 2 4 6
3
4
5
6
7
8
9
10
2
0 12
PATTERN = k28.5
MODE_SEL = 0, SLEW_RATE = 1
MODE_SEL = 1
BER
vs. INPUT AMPLITUDE
INPUT AMPLITUDE (mV P-P )
BER
2.0 1.5 1.0
1.0E-08
1.0E-09
1.0E-10
1.0E-07
1.0E-06
1.0E-05
1.0E-04
1.0E-03
1.0E-02
1.0E-01
1.0E-11
0.5 2.5
MAX3798 toc05
AT 8.5Gbps
MODE_SEL = 0
AT 8.5Gbps
MODE_SEL = 1
OUTPUT EYE DIAGRAM AT 10.32Gbps
MAX3798 toc06
20ps/div
50mV/div
OUTPUT EYE DIAGRAM AT 8.5Gbps
MAX3798 toc07
20ps/div
50mV/div
OUTPUT EYE DIAGRAM AT 4.25Gbps
MAX3798 toc08
50ps/div
50mV/div
MODE_SEL = 1
OUTPUT EYE DIAGRAM AT 4.25Gbps
MAX3798 toc09
50ps/div
100mV/div
MODE_SEL = 0, SLEW_RATE = 1
Typical Operating Characteristics—Limiting Amplifier
(V CC = 3.3V, T A = +25°C, unless otherwise specified. Figure 1 shows the typical setup used for measurements. Registers are set to
default values unless otherwise noted, and the 3-wire interface is static during measurements. For testing, the MODE_SEL bit was
used and the MSEL pin was left open.)