DS1862B+ Maxim Integrated Products, DS1862B+ Datasheet - Page 21

• 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

The DS1862 is capable of generating an alarm and/or
warning whenever an analog monitored channel goes
out of a user-defined tolerance. Temperature, bias cur-
rent (based on IBIASMON), receive power (based on
RSSI), AUX1MON, AUX2MON, and V
Figure 10. AUX1/2MON Monitor Logic
XFP Laser Control and Digital Diagnostic IC
Warning and Alarm Logic Based on
(LASER WL MODE)
(LASER WL MODE)
AUX1/2MON, V
(V
(V
(APD MODE)
(V
(V
(APD MODE)
CC2
CC2
EE5
EE5
AUX1MON
AUX2MON
AUX1MON
AUX2MON
AUX1MON
AUX2MON
AUX1MON
AUX2MON
AUX1MON (PIN)
MODE)
MODE)
AUX2MON (PIN)
MODE)
MODE)
CC2/3
THRESHOLD
THRESHOLD
and IBIASMON
ADC
ADC
____________________________________________________________________
, Temp, RX-P,
CC2/3
LATCHED-APD-
SUPPLY-FAULT
LATCHED-
WAVELENGTH-UL
LATCHED-V
LATCHED-V
, are moni-
C
C
*
*
EE5
CC2
AUX1/2MON LOGIC
MASK BIT
CORRESPONDING MASK
tored channels that generate latched flags. See the fig-
ure below for more detail pertaining to AUX1MON and
AUX2MON. Flags are latched into a high state the first
time a monitored channel goes out of the defined oper-
ating window and for each monitored signal there is a
Mask bit that can be set to prevent the corresponding
alarm or warning flag from being set. Once a flag is set,
it is cleared by simply reading its memory location.
(V
(V
(V
(V
(TEC MODE)
(TEC MODE)
CC5
CC5
CC3
CC3
AUX2MON
AUX2MON
AUX2MON
AUX1MON
AUX1MON
AUX1MON
ANY FLAG
MODE)
MODE)
MODE)
MODE)
BIT
AUX1MON
AUX2MON
*COMPARATOR LOGIC IS
AND LOW ALARMS AND
DUPLICATED FOR HIGH
WARNINGS.
INTERRUPT (PIN)
LATCHED-TEC-
FAULT
LATCHED-V
LATCHED-V
CC5
CC3
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