Datasheet

# - R_DIV_4: divider of 4

# - R_DIV_8: divider of 8

# - R_DIV_16: divider of 16

# - R_DIV_32: divider of 32

# - R_DIV_64: divider of 64

# - R_DIV_128: divider of 128

si5351.clock_2.r_divider = adafruit_si5351.R_DIV_64

print('Clock 2: {0}khz'.format(si5351.clock_2.frequency/1000))

# After configuring PLLs and clocks, enable the outputs.

si5351.outputs_enabled = True

# You can disable them by setting false.