ACS8526P View Datasheet(PDF) - Semtech Corporation

Part Name

Description

MFG CO.

ACS8526P

Line Card Protection Switch for PDH, SONET or SDH Systems

Semtech Corporation 

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ACS8526 LC/P LITE

ADVANCED COMMUNICATIONS

FINAL

Table 8 Output Reference Source Selection Table

Port

Name

Output Port

Technology

Frequencies Supported

Output

O1

Output

O2

LVDS/PECL

(LVDS default)

TTL/CMOS

Frequency selection as per Table 9 and Table 13

FrSync TTL/CMOS

FrSync, 8 kHz programmable pulse width and polarity, see Reg. 7A.

MFrSync TTL/CMOS

MFrSync, 2 kHz programmable pulse width and polarity, see Reg. 7A.

DATASHEET

Note...1.544 MHz/2.048 MHz are shown for SONET/SDH respectively. Pin SONSDHB controls default. When High, SONET is default.

Table 9 Output Frequency Selection

Frequency (MHz, unless stated otherwise)

DPLL1 Mode

DPLL2 Mode

APLL2 Input Mux Jitter Level (typ)

2 kHz

77.76 MHz Analog

-

rms p-p (ns)

(ps)

-

60 0.6

2 kHz

8 kHz

Any digital feedback

-

mode

77.76 MHz Analog

-

-

1400 5

-

60 0.6

8 kHz

1.536

1.536

Any digital feedback

mode

-

-

-

12E1 mode

-

-

1400 5

Select DPLL2

Select DPLL1 12E1

500 2.3

250 1.5

1.544

-

16DS1 mode

Select DPLL2

200 1.2

1.544

-

1.544 via Digital1 or Digital2 (not Output O1) 77.76 MHz Analog

1.544 via Digital1 or Digital2 (not Output O1) Any digital feedback

mode

2.048

-

2.048

-

2.048

-

-

-

-

12E1 mode

-

16E1 mode

Select DPLL1 16DS1 150 1.0

-

3800 13

-

3800 18

Select DPLL2

Select DPLL1 12E1

Select DPLL2

500 2.3

250 1.5

400 2.0

2.048

-

-

Select DPLL1 16E1 220 1.2

2.048 (not Output O1)

12E1 mode

2.048 via Digital1 or Digital2 (not Output O1) 77.76 MHz Analog

2.048 via Digital1 or Digital2 (not Output O1) Any digital feedback

mode

2.059

-

2.059

-

-

-

-

16DS1 mode

-

-

900 4.5

-

3800 13

-

3800 18

Select DPLL2

200 1.2

Select DPLL1 16DS1 150 1.0

Revision 4.01/June 2006 © Semtech Corp.

Page 19

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