DS1862B+ Maxim Integrated Products, DS1862B+ Datasheet - Page 41

• Manufacturer Part Number: DS1862B+
• Description: IC LASR CTRLR 7CHAN 5.5V 25CSBGA
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Controller (Fiber Optic)r

Specifications of DS1862B+

• Data Rate: 10Gbps
• Number Of Channels: 7
• Voltage - Supply: 2.9 V ~ 5.5 V
• Current - Supply: 3mA
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 25-CSBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

To achieve best results, it is recommended that the
power supply is decoupled with a 0.01μF or a 0.1μF
capacitor. Use high-quality, ceramic, surface-mount
capacitors, and mount the capacitors as close as pos-
sible to the V
inductance.
10kΩ
3.3V
XFP Laser Control and Digital Diagnostic IC
10kΩ
CC2
*ADDITIONAL MONITORS NOT USED IN THIS EXAMPLE.
3.3V
/V
CC3
4.7kΩ
10kΩ
Power-Supply Decoupling
HOST
3.3V
3.3V
and GND pins to minimize lead
TX-DISABLE
4.7kΩ
3.3V
____________________________________________________________________
0.1μF
*
AUX1MON
TX-D
MOD-DESEL
P-DOWN/RST
MOD-NR
AUX2MON
SDA
RX-LOS
INTERRUPT
SCL
V
1.8V
GND
CC2
DS1862
V
3.3V
CC3
BMD
SDA is an open-collector bidirectional data pin on the
DS1862 that requires a pullup resistor to realize high
logic levels. Either an open-collector output with a pullup
resistor or a push-pull output driver can be utilized for
the SCL input. Pullup resistor values should be chosen
to ensure that the rise and fall times listed in the I
Electrical Characteristics are within specification.
SC-RX-LOS
SC-TX-LOS
SC-RX-LOL
IBIASMON
0.1μF
MODSET
BIASSET
FETG
THRSET
1nF
RSSI
EN2
EN1
TX-DISABLE
Typical Operating Circuit
SDA and SCL Pullup Resistors
1kΩ
RECEIVER CURRENT SENSE (VOLTAGE)
MONITOR
MODSET
BIASSET
DISABLE
FCTL2
FCTL1
FCTL1
FCTL2
VTH
LOS
LOL
LOS
10nF
EQUALIZER
MAX3975
MAX3991
MAX3992
LIMITING
DRIVER
LASER
AMP
OUT
2
C AC
41