ZL30122GGG2 Datasheet ZL30122GGG2, ZL30122GGG | P1-P3

Zarlink Semiconductor Inc.

Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.

Features

• Synchronizes with standard telecom system

references and synthesizes a wide variety of

protected telecom line interface clocks that are

compliant with Telcordia GR-253-CORE and ITU-T

G.813

• Internal APLL provides standard output clock

frequencies up to 622.08 MHz with jitter < 3 ps

RMS suitable for GR-253-CORE OC-12 and G.813

STM-16 interfaces

• Programmable output synthesizer generates clock

frequencies from any multiple of 8 kHz up to

77.76 MHz in addition to 2 kHz

• Digital Phase Locked-Loop (DPLL) provides all the

features necessary for generating SONET/SDH

compliant clocks including automatic hitless

reference switching, automatic mode selection

(locked, free-run, holdover), and selectable loop

bandwidth

• Provides 3 reference inputs which support clock

frequencies with any multiples of 8 kHz up to

77.76 MHz in addition to 2 kHz

• Provides 3 sync inputs for output frame pulse

alignment

• Generates several styles of output frame pulses

with selectable pulse width, polarity, and frequency

• Configurable input to output delay, and output to

output phase alignment

• Flexible input reference monitoring automatically

disqualifies references based on frequency and

phase irregularities

• Supports IEEE 1149.1 JTAG Boundary Scan

May 2006

Figure 1 - Block Diagram

dpll_mod_sel

tck tdotdi tmstrst_b

dpll_holdover

dpll_lock

sck

DPLL

rst_bcs_b

diff_en

Reference

Monitors

ref

sync

ref0

ref1

ref2

sync0

sync1

sync2

int_b

sdh_clk

sdh_fp

p_clk

p_fp

ref2:0

sync2:0

ref_&_sync_status

Controller &

State Machine

SPI Interface

SONET/SDH

APLL

diff_clk_p/n

IEEE 1449.1

JTAG

Master

Clock

osco

osci

sdh_filter filter_ref0 filter_ref1

Programmable

Synthesizer

ZL30122

SONET/SDH

Low Jitter Line Card Synchronizer

Data Sheet

Ordering Information

ZL30122GGG 64 Pin CABGA Trays

ZL30122GGG2 64 Pin CABGA* Trays

*Pb Free Tin/Silver/Copper

-40

C to +85

ZL30122 Data Sheet

Zarlink Semiconductor Inc.

Applications

• AMCs for AdvancedTCA

and MicroTCA Systems

• Multi-Service Edge Switches or Routers

• DSLAM Line Cards

• WAN Line Cards

• RNC/Mobile Switching Center Line Cards

• ADM Line Cards

ZL30122 Data Sheet

Table of Contents

Zarlink Semiconductor Inc.

1.0 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.1 DPLL Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.2 DPLL Mode Of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.3 Ref and Sync Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.4 Ref and Sync Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.5 Output Clocks and Frame Pulses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.6 Configurable Input-to-Output and Output-to-Output Delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.0 Software Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.0 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P23

ZL30122GGG2

Mfr. #:

Buy ZL30122GGG2

Manufacturer:

Microchip / Microsemi

Description:

Clock Generators & Support Products Pb Free SONET/SDH PLL Line Card Synch.

Lifecycle:

New from this manufacturer.

Delivery:

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ZL30122GGG2

ZL30122GGG2

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