DS1864T+ Maxim Integrated Products, DS1864T+ Datasheet - Page 6

• Manufacturer Part Number: DS1864T+
• Description: IC LASER CTRLR 1CHAN 5.5V 28TQFN
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Controller (Fiber Optic)r

Specifications of DS1864T+

• Number Of Channels: 1
• Voltage - Supply: 2.97 V ~ 5.5 V
• Current - Supply: 3mA
• Operating Temperature: -40°C ~ 95°C
• Package / Case: 28-WFQFN Exposed Pad
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SFP Laser Controller and
Diagnostic IC
NONVOLATILE MEMORY CHARACTERISTICS
(V
Note 1: All voltages are referenced to ground. Currents into the IC are positive, and currents out of the IC are negative.
Note 2: Supply current is measured with all logic inputs at their inactive state (SDA = SCL = V
Note 3: DAC0/DAC1 positions programmed to FFh and with outputs floating.
Note 4: Full-scale is user programmable. The maximum voltage that the MON inputs read is approximately full-scale, even if the
Note 5: This voltage defines the maximum range of the analog-to-digital (ADC) converter voltage, not the maximum V
Note 6: Accuracy specification includes supply and temperature variations. Measured at 1.2V.
Note 7: %FS refers to calibrated full scale in the case of internal calibration, and uncalibrated full scale in the case of external cali-
Note 8: When used single-ended, MON1N must be connected to GND.
Note 9: 0.5%FS with 0.5dB (~11%) accuracy results in 16.4dB range. Assuming some overlap of the ranges, this scheme should
Note 10: See Figure 14 for thermometer error.
Note 11: When the DACs are re-enabled, they ramp up to their final values. The ramp up starts from 0 and should not exceed its
Note 12: This spec is the time it takes, from RSSI voltage below the RSSI voltage trip threshold, to LOS asserted high.
Note 13: Measured from the falling clock edge after the stop bit of the write transaction.
Note 14: I
Note 15: C
Note 16: EEPROM write begins after a stop condition occurs.
Note 17: This parameter is guaranteed by design.
6
EEPROM Writes
CC
_____________________________________________________________________
= 2.97V to 5.5V, T
levels. All outputs are disconnected.
voltage on the inputs is greater than full-scale.
bration. Uncalibrated full scale is set at the factory and is specified in this data sheet as V
(Factory), MON2 FS (Factory), and MON3 FS (Factory). Calibrated full scale is set by the user, allowing him to change any
of these scales for his instrumentation.
cover the required 26dB range.
final value at any point during its initial transient.
dard-mode timing.
2
PARAMETER
B
C interface timing shown for is for fast-mode (400kHz) operation. This device is also backward-compatible with I
⎯total capacitance of one bus line in picofarads.
A
= -40°C to +95°C.)
SYMBOL
+70°C (Note 17)
CONDITIONS
50,000
CC
MIN
) and driven to well-defined logic
CC
TYP
FS (Factory), MON1 FS
MAX
CC
voltage.
2
UNITS
Writes
C stan-