1.2 Pin Descriptions

Table 1-1. SY84782U Pin Descriptions
Pin #	Pin Name	Functional Description
1, 4, 7, 8, 13	GND, EPAD	Device ground. Ground and exposed pad must be connected to the plane of the most negative potential.
2	DIN+	Non-inverting input data. Internally terminated with 500 to a reference voltage.
3	DIN-	Inverting input data. Internally terminated with 500 to a reference voltage.
5, 6	VCC	Supply voltage. Bypass with a 0.1 μF II O.Q1 μF low-ESR capacitor as close to VCC pin as possible.
9, 10	MOD-	Inverted modulation current output. Provides modulation current when input data is negative
11, 12	MOD+	Non-inverted modulation current output. Provides modulation current when input data is positive.
14	VREF	Reference voltage. Install a 0.1 μF capacitor between VREF and VCC pins.
15	IM_SET	Modulation current setting and control. The voltage applied to this pin will set the modulation current.
16	/EN	Enable pin. A high level signal applied to this pin will pull the MOD+ output HIGH and MOD- output LOW. Internally pulled down with a 75 kO resistor.