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DS3106
Line Card Timing IC
Low-Cost Line Card Timing IC
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Status
Active: In Production.
Description
The DS3106 is a low-cost timing IC for telecom line cards. The device accepts two reference clocks from dual redundant system timing cards, continually monitors both inputs, and performs manual reference switching if the primary reference fails. The highly programmable DS3106 supports numerous input and output frequencies including frequencies required for SONET/SDH, Synchronous Ethernet (1G, 10G, and 100Mbps), wireless base stations, and CMTS systems. PLL bandwidths from 18Hz to 400Hz are supported, and a wide variety of PLL characteristics and device features can be configured to meet the needs of many different applications.
The DS3106 register set is backward compatible with Semtech's ACS8526 line card timing IC. The DS3106 pinout is similar but not identical to the ACS8526.
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Data Sheet
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An evaluation kit is available: DS3106DK
Key Features
- Advanced DPLL Technology
- Programmable PLL Bandwidth: 18Hz to 400Hz
- Manual Reference Switching
- Holdover on Loss of All Input References
- Frequency Conversion Among SONET/SDH, PDH, Ethernet, Wireless, and CMTS Rates
- Two Input Clocks
- CMOS/TTL Signal Format (≤ 125MHz)
- Numerous Input Clock Frequencies Supported
- Ethernet xMII: 2.5, 25, 125, 156.25MHz
- SONET/SDH: 6.48, N x 19.44, N x 51.84MHz
- PDH: N x DS1, N x E1, N x DS2, DS3, E3
- Frame Sync: 2kHz, 4kHz, 8kHz
- Custom Clock Rates: Any Multiple of 2kHz Up to 125MHz
- Two Output Clocks
- One CMOS/TTL Output (≤ 125MHz)
- One LVDS/LVPECL Output (≤ 312.50MHz)
- Two Optional Frame-Sync Outputs: 2kHz, 8kHz
- Numerous Output Clock Frequencies Supported
- Ethernet xMII: 2.5, 25, 125, 156.25, 312.5MHz
- SONET/SDH: 6.48, N x 19.44, N x 51.84MHz
- PDH: N x DS1, N x E1, N x DS2, DS3, E3
- Other: 10, 10.24, 13, 30.72MHz
- Frame Sync: 2kHz, 8kHz
- Custom Clock Rates: Any Multiple of 2kHz Up to 77.76MHz, Any Multiple of 8kHz Up to 311.04MHz, Any Multiple of 10kHz Up to 388.79MHz
- General
- Suitable Line Card IC for Stratum 3/3E/4, SMC, SEC
- Internal Compensation for Master Clock Oscillator
- SPI™ Processor Interface
- 1.8V Operation with 3.3V I/O (5V Tolerant)
- Industrial Operating Temperature Range
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Applications/Uses
- SONET/SDH, Synchronous Ethernet, PDH, and Other Line Cards in WAN Equipment Including MSPPs, Ethernet Switches, Routers, DSLAMs, and Wireless Base Stations
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Key Specifications:
| Timing Card and Line Card ICs |
| Part Number |
Indep. DPLLs |
Input Clocks |
Diff. Input Clocks |
Output Clocks |
Diff. Output Clocks |
fCLKIN |
fCLKOUT |
DPLL BW
(Hz) |
DPLL BW
(Hz) |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| min |
max |
max w/pins |
See Notes |
| DS3106 |
1 |
2 |
0 |
2 |
1 |
| 2kHz and 4kHz | | 25.00MHz | | 125.00MHz | | 156.25MHz | | 312.5MHz | | N x 19.44MHz | | N x 2kHz up to 131.072MHz | | N x 8kHz up to 155.52MHz | | N x DS1 | | N x E1 |
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| 2kHz | | 6.48MHz | | 8kHz | | 25.00MHz | | 51.84MHz | | 62.5MHz | | 125.00MHz | | 155.52MHz | | 156.25MHz | | 311.04MHz | | 312.5MHz | | DS3 | | E3 | | N x 10kHz up to 388.79MHz | | N x 19.44MHz | | N x 2kHz up to 77.76MHz | | N x 8kHz up to 311.04MHz | | N x DS1 | | N x DS2 | | N x E1 |
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18 |
400 |
148.8 |
$16.48 @1k |
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See All Timing Card and Line Card ICs (12)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Simplified Functional Diagram
Didn't Find What You Need?
Information Index
Document Ref.: 19-4629
Rev 4;
2010-08-26
This page last modified: 2010-08-26
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