DSA504RT datasheet(25/73 Pages) MICROCHIP

Part #	DSA504RT

Description	Low-Power, Low-Jitter, Six-Output Clock Generator for Space Applications

PDF	73 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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25 / 73 page

DSA504RT

Preliminary Data Sheet

DS50004033A - 25

7:4

lpflt_rprop

APLL frequency plan B proportional path resistor.

0 = 12.5kΩ

1 = 10.0kΩ

2 = 8.0kΩ

3 = 6.0kΩ

4 = 4.5kΩ

5 = 3.0kΩ

6 = 2.0kΩ

7 = 1.25kΩ

other = insert +3kΩ post (higher-order pole)

3:0

lpflt_cprop

APLL frequency plan B proportional path capacitor.

0 = 1pF

1 = 5pF

2 = 9pF

3 = 13pF

4 = 17pF

5 = 21pF

6 = 25pF

7 = 29pF

other = +4pf post (higher-order pole)

Address:

Name:

Default:

Type:

0x0058

config_0x58

0x81

R/W

Bit Field

Function Name

Description

7:6

fusa_en_buf

Enable outputs stop (squelch) on FUSA LOL/LOS flags.

0 = no squelch (test mode),

1 = no squelch (test mode),

2 = release squelch in operate state

3 = release squelch in operate state but squelch if fusa lol/los flag

raised

5:4

chp_scaling_b

APLL frequency plan B charge pump scaling.

0 = normal

1 = lower iprop by 30%

2 = lower iint by 30%

3 = lower iprop & iintg by 30%

DSA504RT Datasheet(PDF) 25 Page - Microchip Technology

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