3.3V/5V LVTTL/LVCMOS-toDIFFERENTIAL LVPECL TRANSLATOR FEATURES ■ ■ ■ ■ ■ ■ ■ ■ DESCRIPTION 3.3V and 5V power supply options 300ps typical propagation delay Differential LVPECL output ICC Max 20mA PNP LVTTL input for minimal loading Q output will default HIGH with inputs open High bandwidth to 800MHz typical Available in 8-pin MSOP and SOIC package The SY10/100EPT20V is a TTL/CMOS to differential PECL translator. Capable of running from a 3.3 or 5V supply, the part can be used in either LVTTL/LVCMOS/ LVPECL or TTL/CMOS/PECL systems. The device only requires a single positive supply of 3.3V or 5V - no negative supply is required. The tiny 8-pin MSOP package and the low skew, dual gate design of the EPT20V makes it ideal for those applications where space, performance, and low power are at a premium. PIN CONFIGURATION/BLOCK DIAGRAM PIN NAMES Pin NC 1 8 VCC LVTTL Q 2 /Q 3 NC 4 SY10EPT20V SY100EPT20V LVPECL Function Q, /Q Differential LVPECL Output 7 D D LVTTL Input 6 NC VCC Positive Supply 5 GND GND Ground (Available in 8-pin SOIC or 8-pin MSOP) Rev.: A 1 Amendment: /1 Issue Date: July 2000 SY10EPT20V SY100EPT20V Micrel ABSOLUTE MAXIMUM RATINGS(1) Symbol Paramter TRUTH TABLE Value Unit D Q /Q VCC Power Supply Voltage –0.5 to +7.0 V H H L VI TTL Input Voltage –0.5 to VCC V L L H II TTL Input Current –30 to +5.0 mA Open H L IOUT PECL Output Current –Continuous –Surge Tstore Storage Temperature –65 to +150 °C TA Operating Temperature –40 to +85 °C mA 50 100 NOTE: 1. Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded. This is a stress rating only and functional operation is not implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to ABSOLUTE MAXIMUM RATlNG conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS VCC = +3.3V ±10% or +5.0V ±10% TA = –40°C Symbol ICC Parameter Power Supply Current TA = 0°C TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Typ. Max. Min. Max. Unit Condition — 20 — 20 — — 20 — 20 mA — TTL DC ELECTRICAL CHARACTERISTICS VCC = +3.3V ±10% or +5.0V ±10% TA = –40°C Symbol Parameter TA = 0°C TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Typ. Max. Min. Max. Unit Condition VIH Input HIGH Voltage 2.0 — 2.0 — 2.0 — — 2.0 — V — VIL Input LOW Voltage — 0.8 — 0.8 — — 0.8 — 0.8 V — IIH Input HIGH Current — — 20 100 — — 20 100 — — — — 20 100 — — 20 100 µA VIN = 2.7V VIN = VCC IIL Input LOW Current — –0.2 — –0.2 — — –0.2 — –0.2 mA VIN = 0.5V VIK Input Clamp Voltage — –1.2 — –1.2 — — –1.2 — –1.2 V IIN = –18mA Unit Condition PECL DC ELECTRICAL CHARACTERISTICS VCC = +3.3V ±10% or +5.0V ±10% TA = –40°C Symbol Parameter TA = 0°C TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Typ. Max. Min. Max. VOH Output HIGH Voltage(1) 10EPT 3920 100EPT 3915 4110 4120 3980 3975 4160 4120 4020 3975 — — 4190 4120 4090 3975 4280 4120 VOL Output LOW Voltage(1) 3350 3445 3050 3190 3370 3380 3050 3190 — — 3370 3380 3050 3190 3405 3380 10EPT 3050 100EPT 3170 mV mV NOTES: 1. These values are for VCC = 5.0V. Level Specifications will vary 1:1 with VCC. 2 SY10EPT20V SY100EPT20V Micrel AC ELECTRICAL CHARACTERISTICS(1) VCC = +3.3V ±10% or +5.0V ±10% TA = –40°C Symbol Parameter TA = 0°C TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Typ. Max. Min. Max. Unit Condition tPLH tPHL Propagation Delay(1) 100 600 100 600 100 — 600 100 600 ps 50Ω to VCC – 2.0V tskpp Part-to-Part Skew(2) — 500 — 500 — — 500 — 500 ps 50Ω to VCC – 2.0V fMAX Maximum Input Frequency 350 — 350 — 350 — — 350 — MHz 50Ω to VCC – 2.0V fMAX Maximum Toggle Frequency — 800 — 800 — — 800 — 800 MHz 50Ω to VCC – 2.0V tr tf Output Rise/Fall Time (20% to 80%) 200 500 200 500 200 — 500 200 500 ps 50Ω to VCC – 2.0V NOTES: 1. Input Rise Time < 1.0ns. 2. Guaranteed by design. Not tested in production. PRODUCT ORDERING INFORMATION Ordering Code Package Type Operating Range VCC Range (V) SY10EPT20VZC Z8-1 Commercial +3.3V ±5% SY10EPT20VZCTR Z8-1 Commercial +3.3V ±5% SY10EPT20VKC K8-1 Commercial +3.3V ±5% SY10EPT20VKCTR K8-1 Commercial +3.3V ±5% SY100EPT20VZC Z8-1 Commercial +3.3V ±5% SY100EPT20VZCTR Z8-1 Commercial +3.3V ±5% SY100EPT20VKC K8-1 Commercial +3.3V ±5% SY100EPT20VKCTR K8-1 Commercial +3.3V ±5% 3 SY10EPT20V SY100EPT20V Micrel 8 LEAD PLASTIC SOIC (Z8-1) Rev. 03 4 SY10EPT20V SY100EPT20V Micrel 8 LEAD MSOP (K8-1) Rev. 01 5 SY10EPT20V SY100EPT20V Micrel 6 SY10EPT20V SY100EPT20V Micrel 7 SY10EPT20V SY100EPT20V Micrel MICREL-SYNERGY TEL + 1 (408) 980-9191 FAX 3250 SCOTT BOULEVARD SANTA CLARA CA 95054 USA + 1 (408) 914-7878 WEB http://www.synergysemi.com http://www.micrel.com This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. © 2000 Micrel Incorporated 8