MAX3798ETJ+ Maxim Integrated Products, MAX3798ETJ+ Datasheet - Page 11

• Manufacturer Part Number: MAX3798ETJ+
• Description: IC LIMITING AMP/VCSEL DVR 32TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX3798ETJ+

• Amplifier Type: Limiting
• Number Of Circuits: 1
• Output Type: Differential
• Current - Supply: 97mA
• Voltage - Supply, Single/dual (±): 2.85 V ~ 3.63 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Operating Temperature Range: + 85 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output / Channel: -
• -3db Bandwidth: -
• Slew Rate: -
• Gain Bandwidth Product: -
• Current - Input Bias: -
• Voltage - Input Offset: -
• Lead Free Status / Rohs Status: Details

(V
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.)
Power SFP+ Limiting Amplifier and VCSEL Driver
CC
140
130
120
110
100
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
90
80
70
60
50
40
= 3.3V, T
-40
2
I
TOTAL SUPPLY MEASURED USING THE SETUP
IN FIGURE 1.
PATTERN = PRBS, DATA RATE = 10.32Gbps
MOD
-25
1.0625Gbps to 10.32Gbps, Integrated, Low-
= 2mA; RECEIVER OUTPUT = 400mV
I
vs. MODULATION CURRENT
BIAS
MODULATION CURRENT (mA
TOTAL SUPPLY CURRENT
I
4
-10
A
BIAS
DETERMINISTIC JITTER
OPTICAL EYE DIAGRAM
8.5Gbps, SET_IMOD = 60, 2
= 2mA
= +25°C, unless otherwise specified. Figure 1 shows the typical setup used for measurements. Registers are set to
vs. TEMPERATURE
= 12mA
TEMPERATURE (°C)
5
850nm VCSEL, MASK WITH 54%
______________________________________________________________________________________
6
20
17ps/div
35
I
BIAS
8
50
= 9mA
65
P-P
7
10
- 1 PRBS,
MAX3798 toc20
)
P-P
80
;
95
12
Typical Operating Characteristics—VCSEL Driver
160
150
140
130
120
110
100
90
80
70
60
50
40
38
33
28
23
18
13
8
3
-40
2
I
TOTAL SUPPLY MEASURED USING THE SETUP
IN FIGURE 1.
BIAS
-25
I
MOD
= 2mA; RECEIVER OUTPUT = 400mV
vs. MODULATION CURRENT
MODULATION CURRENT (mA
TOTAL SUPPLY CURRENT
4.25Gbps, SET_IMOD = 60, 2
-10
4
FALL TIME
OPTICAL EYE DIAGRAM
= 12mA
vs. TEMPERATURE
TRANSITION TIME
TEMPERATURE (°C)
I
5
MOD
850nm VCSEL, MASK WITH 46%
6
= 2mA
20
34ps/div
RISE TIME
PATTERN = 11110000,
DATA RATE = 8.5Gbps
35
I
MOD
8
50
= 9mA
65
P-P
7
10
- 1 PRBS,
MAX3798 toc21
)
P-P
80
;
95
12
41
39
37
35
33
31
29
27
25
0
PATTERN = 11110000,
DATA RATE = 8.5Gbps,
I
MOD
1
= 10mA
2.125Gbps, SET_IMOD = 60, 2
vs. DEEMPHASIS SETTING
2
10.3Gbps, SET_IMOD = 60, 2
OPTICAL EYE DIAGRAM
OPTICAL EYE DIAGRAM
3
TRANSITION TIME
P-P
RISE TIME
850nm VCSEL, MASK WITH 44%
850nm VCSEL, MASK WITH 50%
SET_TXDE[3:0]
4
FALL TIME
14ps/div
68ps/div
5
6
7
8
7
7
- 1 PRBS,
- 1 PRBS,
MAX3798 toc19
MAX3798 toc22
9
10
11
11