It comes fully assembled just as pictured.
Power requirement: 6VDC. 4-12VDC is ok., minimum 50mA.
CN3 (the two pin white connector) is a power down selector. Can be controlled by a switch or a open drain signal. Open = power on.
Chose external/on board MCLK (master clock) source with JMP2.
LT1763 LDO regulartor is set to output 3.6V to maximize the output level.
A cable that connects to the 3 and 2 pin connectors are included. I2S cable is not included.