MAX3799ETJ+ Maxim Integrated Products, MAX3799ETJ+ Datasheet - Page 11

• Manufacturer Part Number: MAX3799ETJ+
• Description: IC LIMITING AMP/VCSEL DVR 32TQFN
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Driverr

Specifications of MAX3799ETJ+

• Data Rate: 14Gbps
• Number Of Channels: 1
• Voltage - Supply: 2.85 V ~ 3.63 V
• Current - Supply: 97mA
• Current - Modulation: 12mA
• Current - Bias: 15mA
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-WFQFN Exposed Pad
• Mounting Type: Surface Mount
• Input Voltage Range (max): 4 V
• Operating Supply Voltage: 2.85 V to 3.63 V
• Supply Current: 97 mA
• Operating Temperature Range: - 40 C to + 85 C
• Bandwidth: 400 KHz to 1000 KHz
• Mounting Style: SMD/SMT
• Power Dissipation: 2759 mW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(V
default values unless otherwise noted, and the 3-wire interface is static during measurements. For testing, the RATE_SEL bit was
used and the RSEL pin was left open.)
CC
38
33
28
23
18
13
= 3.3V, T
8
3
2
2.125Gbps, SET_IMOD = 60, 2
vs. MODULATION CURRENT
MODULATION CURRENT (mA
10.3Gbps, SET_IMOD = 60, 2
4
A
OPTICAL EYE DIAGRAM
OPTICAL EYE DIAGRAM
FALL TIME
1Gbps to 14Gbps, SFP+ Multirate Limiting
= +25°C, unless otherwise specified. Figure 1 shows the typical setup used for measurements. Registers are set to
TRANSITION TIME
850nm VCSEL, MASK WITH 50%
850nm VCSEL, MASK WITH 44%
______________________________________________________________________________________
Typical Operating Characteristics—VCSEL Driver (continued)
6
68ps/div
14ps/div
RISE TIME
PATTERN = 11110000,
DATA RATE = 8.5Gbps
8
7
7
P-P
10
- 1 PRBS,
- 1 PRBS,
MAX3799 toc19
MAX3799 toc22
)
12
41
39
37
35
33
31
29
27
25
0
PATTERN = 11110000,
DATA RATE = 8.5Gbps,
I
MOD
1
14.025Gbps, SET_IMOD = 60, 2
Amplifier and VCSEL Driver
= 10mA
ELECTRICAL EYE DIAGRAM
vs. DEEMPHASIS SETTING
4.25Gbps, SET_IMOD = 60, 2
2
OPTICAL EYE DIAGRAM
3
TRANSITION TIME
P-P
RISE TIME
850nm VCSEL, MASK WITH 46%
SET_TXDE[3:0]
4
FALL TIME
EYE WIDTH
34ps/div
14ps/div
62.8ps
5
6
7
8
31
7
- 1 PRBS,
- 1 PRBS
MAX3799 toc20
MAX3799 toc23
9
10
11
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
14
12
10
8
6
4
2
0
2
0
PATTERN = PRBS, DATA RATE = 10.32Gbps
R
LOAD
50
vs. MODULATION CURRENT
MODULATION CURRENT (mA
4
OPTICAL EYE DIAGRAM
8.5Gbps, SET_IMOD = 60, 2
DETERMINISTIC JITTER
MODULATION CURRENT
= 50Ω
vs. DAC SETTING
R
100
LOAD
850nm VCSEL, MASK WITH 54%
SET_IMOD[8:0]
6
17ps/div
= 75Ω
R
150
LOAD
= 100Ω
8
200
7
P-P
10
- 1 PRBS,
MAX3799 toc21
250
)
300
12
11