Sample Application Circuit
LB1870, 1870M
Clock Divisor Switching
Pin N1
Pin N2
Divisor
H
H
2560 (5 × 1 × 512)
L
H
5120 (5 × 2 × 512)
H
L
4096 (4 × 2 × 512)
L
L
3072 (3 × 2 × 512)
—
M
EXT. CLK
Note: An open input is taken as a high level input.
PLL servo frequency = (crystal oscillator frequency)/(divisor)
Crystal Oscillator Usage
No. 4356-6/10