M02061 Datasheet, PDF (14/37 Pages) M/A-COM Technology Solutions, Inc. – 3.3 or 5 Volt Laser Driver

Pin Definitions
Table 2-1.
4x4 mm
QFN24 Pin
Number
10
11
M02061 Pin Definitions and Descriptions (4 of 7)
Pin Name
Pin equivalent load
Function
BIAS_MON
TxPwr_MON
See MOD_MON drawing
V_CC
V_CC3
Bias Current Monitor. Connect directly through a resistor to GND (MON_POL
high) or to V_CC3 (MON_POL low). The current through this pin is approximately
1/100th of the BIAS current to the laser.
This pin may be left open if the feature is not needed and the M02061 current
consumption will be reduced by 0.5mA typically.
Transmit Power Monitor. Connect directly through a resistor to GND
(MON_POL high) or to V_CC3 (MON_POL low). The current through this pin is
approximately the same as the photo diode current into IPIN.
This pin may be left open if the feature is not needed and the M02061 current
consumption will be reduced by the IPIN current.
TxPwr _MON
33 Ω
12
APC_SET
V_CC
V_CC3
Average Power Control, laser bias current adjustment. Connect a resistor
between this pin and ground to set the bias current to the laser.
The APC loop will control the laser bias current to maintain a voltage of
approximately 1.3V at this pin. The current through this pin is approximately
the same as the current into I_PIN.
APC_SET
13
I_PIN
V_CC
Current input from monitor photodiode anode.
The APC loop will adjust the laser bias current to maintain a voltage at
APC_SET of approximately 1.3V and at this pin of approximately one V_GS. The
voltage at this pin will not exceed 1.6V in normal operation
I_PIN
30 Ω
02061-DSH-001-G
Mindspeed Technologies^®
14
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