ACS8520 datasheet(39/150 Pages) SEMTECH

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ADVANCED COMMUNICATIONS

FINAL

DATASHEET

Revision 3.01/October 2003 © Semtech Corp.

Page 39

www.semtech.com

ACS8520 SETS

Note...All frequencies in MHz

98.304 (TO6 only)

12E1 mode

900

4.5

98.816 (TO6 only)

16DS1 mode

760

2.6

131.07 (TO6 only)

16E1 mode

250

1.6

137.47 (TO4/TO5 only)

E3 mode

Select T4 DPLL

120

1.0

148.22 (TO6 only)

24DS1 mode

110

0.75

155.52 (TO4/TO5 only)

77.76 MHz mode Select T4 DPLL

0.6

155.52 (TO6/TO7 only)

77.76 MHz analog

0.6

155.52 (TO6/TO7 only)

77.76 MHz digital

0.6

311.04 (TO6 only)

77.76 MHz analog

0.6

311.04 (TO6 only)

77.76 MHz digital

0.6

Table 15 Frequency Divider Look-up

APLL

Frequency

APLL/2

APLL/4

APLL/6

APLL/8

APLL/12

APLL/16

APLL/48

APLL/64

311.04

155.52

77.76

51.84

38.88

25.92

19.44

6.48

4.86

274.944

137.472

68.376

34.368

17.184

5.728

4.296

178.944

89.472

44.736

22.368

11.184

3.728

2.796

148.224

74.112

37.056

24,704

18.528

12.352

9.264

3.088

2.316

131.072

65.536

32.768

21.84533

16.384

10.92267

8.192

2.730667

2.048

98.816

49.408

24.704

16.46933

12.352

8.234667

6.176

2.058667

1.544

98.304

49.152

24.576

16.384

12.288

8.192

6.144

2.048

1.536

Table 14 Output Frequency Selection (cont...)

Frequency (MHz, unless stated otherwise)

T0 DPLL Mode

T4 DPLL Mode

T4 APLL Input Mux

Jitter Level (typ)

rms

(ps)

pk-pk

(ns)

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