M02097-11 Datasheet, PDF (16/21 Pages) M/A-COM Technology Solutions, Inc. – 3.3/5V LED Driver / Limiting Amplifier for Operation to 500 Mbps

Pin Definitions
Table 2-1.
QFN Pin
Number
21
22
23
24
25
26
27
28
29
30
31
32
M02097 Pad / Pin Descriptions (2 of 2)
Pin Name
Function
V_CC3T
C_PB
ST_SET
V_CC3R
RxINp
RxINm
Config1
Config2
Config3
Config4
LOS-ST
I_REF
Internally regulated voltage for LED driver circuitry in 5V applications. Connect directly to supply to allow wider
power supply tolerance in 3.3V-only applications (internal regulator not in use). Do not connect to power supply if
V_CC = 5V.
A capacitor at this pin sets the compensation for the pre-bias control. Connect a capacitor between this pin and
V_CC3 if pre-bias control is used. Can leave floating if not using pre-bias.
Loss of signal threshold setting input. Connect a resistor between this pin and V_CC3 to set loss of signal threshold.
Internally regulated voltage for limiting amplifier circuitry in 5V applications. Connect directly to supply to allow
wider power supply tolerance in 3.3V-only applications (internal regulator not in use). Do not connect to power
supply if V_CC = 5V.
Non-inverting limiting amplifier data input. Internally terminated with 2 kΩ to self-bias voltage of approximately
V_CC3R - 0.5V.
Inverting limiting amplifier data input. Internally terminated with 2 kΩ to self-bias voltage of approximately
V_CC3R - 0.5V.
Configuration logic input. These pins select LED driver and limiting amplifier configurations and test modes. Refer
to Configuration Logic table (Table 1-9) for more information. Three level logic where nominal level is mid-range
(V_CC3T / 2) when floating.
Limiting amplifier LOS or ST (signal detect) output (M02097-11 PECL, M02097-21 CMOS). Configuration logic
selects whether output is to be LOS or ST. 5V compatible when using a 5V supply.
Internal reference current. Must be connected to ground through a 12.4 kΩ 1% resistor.
02097-DSH-001-C
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