MN6155

For Communications Equipment

MN6155 Frequency Dividing Data Settings

1)

Comparator side frequency dividing data

2)

Reference side frequency dividing data

a)

b)

where

: Comparator side frequency

: High-speed reference frequency

: Low-speed reference oscillator frequency

FV

: Comparator frequency divider stage output frequency

FR

: Reference frequency divider stage output frequency

N

: Setting for 14-bit programmable counter on comparator side

A

: Setting for 4-bit swallow counter on comparator side

R

: Setting for 17-bit programmable counter on low-speed reference side

NR

: Setting for 13-bit programmable counter on high-speed reference side

AR

: Setting for 4-bit swallow counter on low-speed reference side

(Note that N should be greater than A; NR, greater than AR.)

MSB

MSB

MSB

R-Side Latch Data

Low-speed operation

High-speed operation

N-Side Latch Data

14 bits

4 bits

LSB

LSB

LSB

4 bits

13 bits

17 bits

Programmable

counter setting (N)

Swallow counter

setting (A)

Programmable counter

setting (N)

Programmable counter

setting (NR)

Swallow counter

setting (AR)