BB189,115 NXP

BB189 UHF variable capacitance diode Rev. 01 8 June 2009 Product data sheet 1. Product prole 1.1 General description The BB189 is a planar technology variable capacitance diode in a SOD523 ultra small leadless plastic SMD package. The excellent matching performance is achieved by gliding matching and a Direct Matching Assembly (DMA) procedure. 1.2 Features n Excellent linearity n Excellent matching to 1.8 % DMA n Ultra small plastic SMD package n C : 2.05 pF C to C ratio: 6.3 min. d(25V) d(2V) d(25V) n Low series resistance 1.3 Applications n Voltage Controlled Oscillators (VCO) n Electronic tuning in UHF television tuners 2. Pinning information Table 1. Pinning Pin Description Simplied outline Graphic symbol 1 1 cathode 2 anode 1 2 sym008 1 The marking bar indicates the cathode. 3. Ordering information Table 2. Ordering information Type number Package Name Description Version BB189 SC-79 plastic surface-mounted package 2 leads SOD523BB189 NXP Semiconductors UHF variable capacitance diode 4. Marking Table 3. Marking codes Type number Marking code BB189 4 5. Limiting values Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter Conditions Min Max Unit V reverse voltage - 32 V R I forward current - 20 mA F T storage temperature - 55 +150 C stg T junction temperature - 55 +125 C j 6. Characteristics Table 5. Characteristics T =25 C unless otherwise specied j Symbol Parameter Conditions Min Typ Max Unit I reverse current see Figure 2 R V =30V - - 10 nA R V =30V T =85 C - - 200 nA R j r diode series resistance f = 470 MHz at C = 9 pF - 0.6 0.7 s d C diode capacitance f = 1 MHz see Figure 1 and d Figure 3 V = 2 V 14.15 - 15.75 pF R V = 25 V 1.89 - 2.18 pF R C /C diode capacitance ratio (2 V to 25 V) f = 1 MHz 6.3 - - d(2V) d(25V) C /C diode capacitance matching V = 2 V to 25 V in sequence of - - 1.8 % d d R 10 diodes (gliding) BB189 1 NXP B.V. 2009. All rights reserved. Product data sheet Rev. 01 8 June 2009 2 of 6