MAX3945ETE+ Maxim Integrated Products, MAX3945ETE+ Datasheet - Page 8

• Manufacturer Part Number: MAX3945ETE+
• Description: IC AMP LIMITING 3.3V LP 16TQFN
• Manufacturer: Maxim Integrated Products
• Type: Limiting Amplifierr

Specifications of MAX3945ETE+

• Applications: Optical Networks
• Mounting Type: Surface Mount
• Package / Case: 16-WQFN Exposed Pad, 16-DQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.0625Gbps to 11.3Gbps,
SFP+ Dual-Path Limiting Amplifier
(V
is static during measurements.)
8
CC
1200
1100
1000
(PRBS7 PATTERN WITH 100 CIDs, RATE_SEL = 1)
900
800
700
600
500
400
180
160
140
120
100
______________________________________________________________________________________
80
60
40
20
10
9
8
7
6
5
4
3
2
1
0
= 3.3V, T
0
50
RSSI MONITOR-BASED LOS THRESHOLDS
0
0
DETERMINISTIC JITTER AT 10.32Gbps
DIFFERENTIAL OUTPUT SIGNAL LEVEL
RXDE1 = 0, RXDE0 = 1
(LOS1_EN = 0 AND LOS2_EN = 1)
10
RXDE1 = 1,
RXDE0 = 0
200
INPUT SIGNAL AMPLITUDE (mV
vs. SET_CML DAC SETTING
RXDE1 = 0, RXDE0 = 0
100
A
SET_LOS[5:0] DAC CODE
= +25NC, unless otherwise noted. Registers are set to default values, unless otherwise noted, and the 3-wire interface
SET_CML DAC SETTING
20
400
DEASSERT
150
30
RXDE_EN = 0
600
40
200
ASSERT
800
RXDE1 = 1,
RXDE0 = 1
50
1000
P-P
250
60
)
1200
300
70
5000
4000
3000
2000
1000
Typical Operating Characteristics (continued)
25
20
15
10
6
4
2
0
0
5
0
50
0
0
DETERMINISTIC JITTER vs. DATA RATE
LOS MASKING TIME vs. DAC SETTING
RXDE_EN = 0
K28.5 PATTERN, RATE_SEL = 1
RXDE1 = 0,
RXDE0 = 0
DJ WITH NO NOISE ON POWER SUPPLY
RXDE1 = 0, RXDE0 = 1
20
vs. SET_CML DAC SETTING
SET_LOSTIMER[6:0] DAC CODE
100
DEEMPHASIS VALUE
(INPUT = 100mV
3
SET_CML DAC SETTING
40
DJ WITH 100mV
(RATE_SEL = 1)
RXDE1 = 1, RXDE0 = 0
DATA RATE (Gbps)
ON POWER SUPPLY
60
150
RXDE1 = 1, RXDE0 = 1
6
80
P-P
P-P
NOISE
200
100
9
)
120
250
12
DETERMINISTIC JITTER vs. INPUT AMPLITUDE AT 1.25Gbps
160
140
120
100
25
20
15
10
80
60
40
20
80
70
60
50
40
30
20
POWER-SUPPLY CURRENT vs. TEMPERATURE
5
0
Rx INPUT-BASED LOS THRESHOLD vs. DAC
(K28.5 PATTERN, 933MHz INPUT FILTER)
-40
0
0
CODE (LOS1_EN = 1 AND LOS2_EN = 0)
LOS2_EN = 0 AND LOS1_EN = 1
RATE_SEL = 0, BW1 = 0, BW2 = 0
-20
10
200
SIGNAL AMPLITUDE (mV
(SET_CML[7:0] = 91d)
SET_LOS[5:0] DAC CODE
LOS2_EN = 1 AND LOS1_EN = 0
20
0
400
TEMPERATURE (°C)
DEASSERT
30
20
600
40
40
ASSERT
800
50
60
P-P
)
1000
60
80
1200
100
70