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| LESHAN RADIO COMPANY, LTD. Silicon Tuning Diode This device is designed for 900 MHz frequency control and tuning applications. It provides solid-state reliability in replacement of mechanical tuning methods. * Controlled and Uniform Tuning Ratio * Available in Surface Mount Package * Available in 8 mm Tape and Reel MMBV809LT1 4.5-6.1 pF VOLTAGE VARIABLE CAPACITANCE DIODES 3 1 1 ANODE ( 3 CATHODE 2 CASE 318-08, STYLE 8 SOT- 23 (TO-236AB) MAXIMUM RATINGS Rating Reverse Voltage Forward Current Device Dissipation(1) @T A = 25C Derate above 25C Junction Temperature Storage Temperature Range Symbol VR IF PD TJ T stg Value 20 20 225 1.8 +125 -55 to +125 Unit Vdc mAdc mW mW/C C C DEVICE MARKING MMBV809LT1=5K ELECTRICAL CHARACTERISTICS(TA=25C unless otherwise noted) Characteristic-All Types Reverse Breakdown Voltage (IR=10Adc) Reverse Voltage Leakage Current (V R=15Vdc) Symbol V (BR)R I R Min 20 -- Max -- 50 Unit Vdc nAdc C T Diode Capacitance V R =2.0Vdc,f=1.0MHz pF Device Type MMBV809LT1 Min 4.5 Q,Figure of Merit V R =3.0Vdc f=500MHz Typ 75 C R ,Capacitance Ratio C 2/ C 8 f=1.0MHz(2) Min 1.8 Typ 5.3 Max 6.1 Max 2.6 1. FR-5 Board 1.0 x 0.75 x 0.62 in. 2. CR is the ratio of Ct measured at 2.0 Vdc divided by Ct measured at 8.0 vdc MMBV809LT1-1/2 LESHAN RADIO COMPANY, LTD. MMBV809LT1 TYPICAL CHARACTERISTICS 10 9 CT , DIODE CAPACITANCE (pF) Q, FIGURE OF MERIT 8 7 6 5 4 3 2 1 0 0.5 1 2 3 4 5 8 10 15 10 0.1 1.0 f, FREQUENCY (GHz) 10 VR = 3 Vdc TA = 25C 100 1000 VR, REVERSE VOLTAGE (VOLTS) Figure 1. Diode Capacitance 1000 R S , SERIES RESISTANCE (MHz) VR = 3.0 Vdc f = 1.0 MHz 800 Figure 2. Figure of Merit CT , DIODE CAPACITANCE (NORMALIZED) 1.04 1.03 1.02 1.01 1.00 0.99 0.98 0.97 0.96 -75 -50 -25 0 +25 +50 +75 +100 +125 VR = 3.0 Vdc f = 1.0 MHz 600 400 0 0.2 0.4 0.6 0.8 1.0 1.2 f, FREQUENCY (GHz) TA, AMBIENT TEMPERATURE (C) Figure 3. Series Resistance Figure 4. Diode Capacitance MMBV809LT1-2/2 |
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