vsc8122 Vitesse Semiconductor Corp, vsc8122 Datasheet
vsc8122
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vsc8122 Summary of contents
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... Selectable Reference Clock General Description The VSC8122 is a single-chip clock recovery IC for use in SONET OC-48, OC-24, OC-12, OC-3, or Giga- bit Ethernet systems operating at their respective 2.48832Gb/s, 1.24416Gb/s, 622.08Mbps, 155.52Mbps, or 1.25Gbps data rates. The VSC8122 complies with SONET jitter tolerance, jitter transfer and jitter generation specifications ...
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... These inputs are required to be AC-coupled to allow use with a vari- ety of limiting amplifiers. Limiting Amp High-Speed Clock and Data Outputs The VSC8122 high-speed clock and data outputs can be DC-terminated, 50 Ω Figure 2. Figure 2: High-Speed Clock and Data Output DC Termination VSC8122 ...
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... Figure 3: High-Speed Clock and Data Output AC Termination VSC8122 CO+ / DO+ CO- / DO- Clock Recovery The VSC8122 has a selectable input data rate. Two pins (FSEL0 and FSEL1) select the data rate to be pro- vided to the VSC8122. Table 1: Input Data Rate Select Input Data Rate 2.48832Gb/s or 2.5Gb/s 1 ...
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... Multi-Rate SONET/SDH Clock and Data Recovery IC Two sets of reference frequencies for the VSC8122 are shown in Table 2. SONET reference clock frequen- cies are as indicated, with Gigabit Ethernet frequencies listed in parenthesis. The two different sets of reference clocks are needed since the reference clock for SONET and Gigabit Ethernet applications will be slightly differ- ent ...
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... Loop Filter The Phase-Lock Loop (PLL) on the VSC8122 employs two external capacitors. The PLL design is fully differential, therefore the loop filter must also be fully differential. One capacitor should be connected between FILTAO and FILTAI, with the other connected between FILTAON and FILTAIN. Recommended capacitors are low-inductance 1.0 µ ...
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... IH 43 — 58 TERM Min Typ Max 45 — 55 -100 — +100 V - — 1.165 0 — 2.0 1.475 Internet: www.vitesse.com Data Sheet VSC8122 80% 20% 80% 20 Units Conditions AC-coupled Ω Units Conditions % ppm - G52228-0, Rev 4.1 01/05/01 ...
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... CC Operating Temperature Range ........................................................ 0 ESD Ratings Proper ESD procedures should be used when handling this product. The VSC8122 is rated to the following ESD voltages based on the human body model: 1. All pins are rated at or above 1500V. © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 G52228-0, Rev 4.1 Tel: (800) VITESSE • ...
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... Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE SEMICONDUCTOR CORPORATION Figure 6: Pin Diagram VITESSE VSC8122 Internet: www.vitesse.com Data Sheet VSC8122 51 49 VEE 47 REFCLK0+ REFCLK0- 45 REFCLK+ REFCLK1- 43 VEE VCC 41 VEE VCC 39 DO+ DO- 37 ...
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... Data Sheet VSC8122 Table 8: Pin Identifications Pin # Name I/O 1 FSEL0 2 FSEL1 3 REF_INPUTSEL VEE_ANA 6 VCC_ANA LOL 10 NOREF 11 VCC 12 FILTAO 13 FILTAI 14 FILTAIN 15 FILTAON 16 VEE 17 VCC VCC 25 VEE 26 VCC 27 CO- 28 CO+ 29 VCC 30 VEE 31 VCC ...
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... High-speed data input termination voltage (may be connected I 0V->3.3V to ground through a series AC-coupling capacitor) I GND typ. Negative power supply Positive power supply I +3.3V typ. No connect, leave unconnected — — Positive power supply I +3.3V typ. No connect, leave unconnected — — Internet: www.vitesse.com Data Sheet VSC8122 Description (1) G52228-0, Rev 4.1 01/05/01 ...
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... Data Sheet VSC8122 Package Information TYP TYP 0.30 RAD. TYP. 0.20 RAD . TYP . 0.17 MAX. © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 G52228-0, Rev 4.1 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com 01/05/01 VITESSE ...
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... Theta case to ambient at appropriate airflow Ambient Air temperature A(MAX Case temperature (85 C(MAX Power (1.2W for VSC8122) (MAX) Page 12 © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE SEMICONDUCTOR CORPORATION Description o θ ...
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... Ordering Information The order number for this product is formed by a combination of the device number, and package type. Device Type VSC8122: OC-3/12/48 (STM-1/4/16) Clock and Data Recovery Notice Vitesse Semiconductor Corporation (“Vitesse”) provides this document for informational purposes only. All information in this document, includ- ing descriptions of features, functions, performance, technical specifications and availability, is subject to change without notice at any time ...
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... Multi-Rate SONET/SDH Clock and Data Recovery IC Page 14 © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE SEMICONDUCTOR CORPORATION Internet: www.vitesse.com Data Sheet VSC8122 G52228-0, Rev 4.1 01/05/01 ...