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VSC7923CA Datasheet(PDF) 2 Page - Vitesse Semiconductor Corporation |
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VSC7923CA Datasheet(HTML) 2 Page - Vitesse Semiconductor Corporation |
2 / 14 page VITESSE SEMICONDUCTOR CORPORATION Preliminary Data Sheet VSC7923 SONET/SDH 2.5Gb/s Laser Diode Driver Page 2 G52203-0, Rev 3.0 05/11/01 © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com Internet: www.vitesse.com Table 1: Signal Pin Reference Table 2: Absolute Maximum Ratings Table 3: Recommended Operating Conditions NOTES: (1) Lower limit of specification is ambient temperature and upper limit is case temperature. (2) See section “Calculation of the Maximum Case Temperature” for detailed maximum temperature calculations. Table 4: ECL Input and Outputs Signal Type Level # Pins Description DIN In ECL 1 Data Input MK, NMK Out ECL 2 Data Density Differential Outputs NIOUT Out 1 Laser Modulation Current Output (Complementary) IOUT Out 1 Laser Modulation Current Output (To Laser Cathode)) VSS Pwr Pwr 5 Negative Voltage Rail GND Pwr Pwr 9 Positive Voltage Rail VIP In DC 1 Modulation Gate Node MIP In DC 1 Modulation Source Node VIB In DC 1 Bias Gate Node MIB In DC 1 Bias Source Node VREF In DC 1 Data Input Reference Total Pins 24 Symbol Rating Limit VSS Negative Power Supply Voltage VCC to -6.0V TJ Maximum Junction Temperature -55°C to + 125°C TSTG Storage Temperature -65°C to +150°C Symbol Parameter Min Typ Max Units Conditions GND Positive Voltage Rail — 0 — V VSS Negative Voltage Rail -5.5 -5.2 -4.9 V TCl Operational Temperature(1) -40 — 85(2) °C Power dissipation = 1.25W TJ Junction Temperature —— 125 °C Symbol Parameter Min Typ Max Units Conditions VIN Input Voltage Swing 300 — 800 mV Peak-to-peak, VREF = -2.0V VOH ECL Output High Voltage -1200 —— mV 50 Ω to -2.0V VOL ECL Output Low Voltage —— -1600 mV 50 Ω to -2.0V |
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