3.3V/5V 800MHz PRECISION PECL AMPLIFIER WITH LOW GAIN FEEDBACK FEATURES DESCRIPTION ■ 3.3V and 5V ±10% power supply options ■ Guaranteed AC parameters over temperature: • fMAX = 800MHz ■ ■ ■ ■ ■ The SY100EL16VO is a differential receiver amplifier optimized for crystal oscillator applications. The device includes an additional low gain (+10V/V) output stage (QFB) ideal for feedback applications common in crystal oscillator gain blocks. The SY100EL16VO is fully differential, with a bandwidth > 800MHz over temperature and voltage. For applications that require output disable control, an Enable pin (/EN) will force the differential output into a fixed logic state. The SY100EL16VO also includes a VBB reference voltage for single-ended or AC-coupled applications. The SY100EL16VO PECL logic is 100k ECL compatible. Operation is guaranteed over the –40°C to +85°C temperature range and 3.3V to 5V nominal supply voltage range. • < 200ps differential propagation delay (D to QFB) • < 730ps differential propagation delay (D to QHG) • < 250ps tr / tf Low gain feedback path QFB = +10V/V Output enable VBB reference output voltage Wide temperature range: –40°C to +85°C ×3mm) MSOP Available in 10-pin (3× PIN CONFIGURATION TRUTH TABLE /EN QHG Out /QHG Out QFB 1 10 VCC 0 Data /Data /QFB 2 9 QHG 1 Logic Low Logic High D 3 8 /QHG /D 4 7 VEE VBB 5 PIN NAMES 6 /EN Pin QFB Differential clock outputs for feedback path: Nominal DC gain +10. D, /D PECL, LVPECL, ECL, LVECL differential inputs: Internal 75kΩ pull-down resistor. VBB VCC –1.32V reference voltage for single-ended inputs: It provides the switching reference for the input differential amplifier. When unused, it can be left open. For single-ended PECL applications connect VBB to /D input, and bypass with a 0.01µF capacitor to VCC. /EN Enable: PECL compatible input control with internal 75kΩ pull-down resistor. It controls the high-gain output (QHG). When HIGH, QHG is low and /QHG is high. /EN is synchronous so that the outputs will only be enabled/disabled when they are in the LOW state. VEE Negative power supply: For ECL/LVECL operation, connect to negative supply. For PECL/ LVPECL operation, connect to GND. VCC /QFB D QHG /D /QHG VBB LEN Q LATCH D Function QFB, /QFB BLOCK DIAGRAM /EN SY100EL16VO QHG, /QHG Differential high-gain outputs: Nominal DC gain is greater than +200. VEE VCC Positive power supply: For ECL/LVECL operation, connect to VCC = 0V. For PECL/ LVPECL operation, connect to either 3.3V or 5.0V. Bypass with 0.1µF// 0.01µF low ESR capacitors. Rev.: B 1 Amendment: /1 Issue Date: January 2002 Micrel SY100EL16VO ABSOLUTE MAXIMUM RATINGS(1) Symbol Rating Value Unit +6.0 V 0 to VCC +0.5 V –0.5 to +5.5 V 50 100 mA VCC – VEE Power Supply Voltage VIN PECL Input Voltage VOUT Voltage Applied to Output at High State (VEE = 0V) IOUT Output Current TA Operating Temperature Range –40 to +85 °C Tstore Storage Temperature Range –65 to +150 °C θJA Package Thermal Resistance (Junction-to-Ambient) 113 96 °C/W θJC Package Thermal Resistance (Junction-to-Case) 42 °C/W –Continuous –Surge –Still-Air –500lfpm 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 TA = –40°C Symbol VCC TA = +25°C TA = +85°C Parameter Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit Condition Power Supply Voltage (PECL) (LVPECL) 4.5 3.0 5.0 3.3 5.5 3.8 4.5 3.0 5.0 3.3 5.5 3.8 4.5 3.0 5.0 3.3 5.5 3.8 V VEE = GND (ECL) (LVECL) –5.5 –3.8 –5.0 –3.3 –4.5 –3.0 –5.5 –3.8 –5.0 –3.3 –4.5 –3.0 –5.5 –3.8 –5.0 –3.3 –4.5 –3.0 V VCC = GND — — 46 — — 46 — — 46 mA VCC = 5.5V ICC Power Supply Current VBB Reference Voltage IIH Input HIGH Current — — 150 — — 150 — — 150 µA VIN = VIH(Max) IIL Input LOW Current 0.5 — — 0.5 — — 0.5 — — µA VIN = VIL(Min) CIN Input Capacitance — — — — 0.75 — — — — pF VCC–1.26 VCC–1.32 VCC–1.38 VCC–1.26 VCC–1.32 VCC–1.38 VCC–1.26 VCC–1.32 VCC–1.38 2 V Micrel SY100EL16VO 100K 5V PECL DC ELECTRICAL CHARACTERISTICS VCC = 5.0V ±10%; VEE = GND TA = –40°C Symbol VOH VOL VIH VIL VIHCMR Parameter TA = +25°C TA = +85°C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit Condition Output High Voltage(1) 3.915 4.005 4.120 3.975 4.005 4.12 3.975 4.005 4.12 V 50Ω to VCC –2V Output Low Voltage(1) 3.170 3.305 3.445 3.190 3.295 3.380 3.190 3.295 3.380 V 50Ω to VCC –2V Input HIGH Voltage(1) 3.835 — 4.120 3.835 — 4.120 3.835 — 4.120 V Input LOW Voltage(1) 3.525 — 3.819 3.525 — 3.819 3.525 — 3.819 V Voltage(2) 2.0 — VCC–0.8 2.0 — VCC–0.8 2.0 — VCC–0.8 V Input High Common Mode Range NOTES: 1. Input and output parameters are at VCC = +5.0V. Level specifications will vary 1:1 with VCC. 2. VIHCMR is referenced to the most positive side of the differential input signal. 100K 3V PECL DC ELECTRICAL CHARACTERISTICS VCC = 3.3V ±10%; VEE = GND TA = –40°C Symbol VOH VOL VIH VIL VIHCMR Parameter TA = +25°C TA = +85°C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit Condition Output High Voltage(1) 2.215 — 2.42 2.275 2.305 2.42 2.275 2.305 2.42 V 50Ω to VCC –2V Output Low Voltage(1) 1.470 — 1.745 1.490 1.595 1.680 1.490 1.595 1.680 V 50Ω to VCC –2V Input HIGH Voltage(1) 2.135 — 2.420 2.135 — 2.420 2.135 — 2.420 V Input LOW Voltage(1) 1.490 — 1.825 1.490 — 1.825 1.490 — 1.825 V Voltage(2) 2.0 — VCC–0.8 2.0 — VCC–0.8 2.0 — VCC–0.8 V Input High Common Mode Range NOTES: 1. Input and output parameters are at VCC = +3.3V. Level specifications will vary 1:1 with VCC. 2. VIHCMR is referenced to the most positive side of the differential input signal. 100K ECL/LVECL DC ELECTRICAL CHARACTERISTICS VEE = –3.0V to –5.5V; VCC = GND TA = –40°C Symbol Parameter Min. Typ. TA = +25°C Max. Min. Typ. TA = +85°C Max. Min. Typ. Max. Unit Condition VOH Output High Voltage –1.085 –1.005 –0.880 –1.025 –0.955 –0.880 –1.025 –0.955 –0.880 V 50Ω to VCC –2V VOL Output Low Voltage –1.830 –1.695 –1.555 –1.810 –1.705 –1.620 –1.810 –1.705 –1.620 V 50Ω to VCC –2V VIH Input HIGH Voltage –1.165 — –0.880 –1.165 — –0.880 –1.165 — –0.880 V VIL Input LOW Voltage –1.181 — –1.475 –1.181 — –1.475 –1.181 — –1.475 V VIHCMR Input High Voltage VEE+2.0 Common Mode Range(1) — — –0.8 V –0.8 VEE+2.0 NOTE: 1. VIHCMR is referenced to the most positive side of the differential input signal. 3 — –0.8 VEE+2.0 Micrel SY100EL16VO AC ELECTRICAL CHARACTERISTICS VCC = 3.0 to 5.5V; VEE = GND; VEE = –3.0 to –5.5V; VCC = GND TA = –40°C Symbol Parameter TA = +85°C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit 800 — — 800 — — 800 — — MHz (Diff.) (Single) — — — — 200 230 — — — — 200 230 — — — — 200 230 ps ps (Diff.) (Single) — — — — 650 700 — — — — 650 700 — — — — 730 780 ps ps fMAX Maximum Frequency tPLH tPHL Propagation Delay to QFB, /QFB to QHG, /QHG TA = +25°C Condition tS Set-Up Time(1) 150 — — 150 — — 150 — — ps Enable Pin tH Hold Time(1) 150 — — 150 — — 150 — — ps Enable Pin tJITTER Cycle-to-Cycle Jiiter — 0.2 — — 0.2 — — 0.2 — ps RMS tSKEW Duty Cycle Skew(2) — 5 20 — 5 20 — 5 20 ps VPP Minimum Input Swing(3) 150 — — 150 — — 150 — — mV tr tf Output Rise/Fall Times (20% to 80%) — — 250 — — 250 — — 250 ps NOTES: 1. See “Timing Waveform.” 2. Duty cycle skew is the difference between tPLH and tPHL propagation delay through the device. 3. The device has a DC gain of 10 for Q, /Q outputs, and DC gain of 200 or higher for QHG, /QHG. See “Timing Waveform” minimum input swing. TIMING WAVEFORMS D 150mV /D Figure 1. Minimum Input Swing D t t S H /EN Q FB Q HG Figure 2. Set-Up and Hold Timing 4 Micrel SY100EL16VO TERMINATION RECOMMENDATIONS +3.3V +3.3V ZO = 50Ω R1 130Ω R1 130Ω +3.3V R2 82Ω R2 82Ω Vt = VCC-2V ZO = 50Ω Figure 3. Parallel Termination–Thevenin Equivalent NOTES: 1. For +5V systems: R1 = 82Ω R2 = 130Ω +3.3V +3.3V Z = 50Ω Z = 50Ω 50Ω 50Ω source 46Ω to 49Ω Rb* destination C1 0.01µF (optional) * For +5V, Rb = 110Ω For +3.3V, Rb = 46Ω to 49Ω Figure 4. Three-Resistor “Y–Termination” NOTES: 1. Power-saving alternative to 4-resistor, Thevenin termination. 2. Place termination resistors as close to destination inputs as possible. 3. Rb resistor sets the DC bias voltage, equal to Vt. For +5V, Rb = 100Ω PRODUCT ORDERING CODE Ordering Code Package Type Operating Range Package Marking SY100EL16VOKI K10-1 Industrial X16O SY100EL16VOKITR* K10-1 Industrial X16O *Tape and Reel 5 Micrel SY100EL16VO 10 LEAD MSOP (K10-1) Rev. 00 MICREL-SYNERGY TEL 3250 SCOTT BOULEVARD + 1 (408) 980-9191 FAX SANTA CLARA + 1 (408) 914-7878 WEB CA 95054 USA 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. © 2002 Micrel Incorporated 6