BB844
Silicon Variable Capacitance Diode
For FM radio tuner with extended frequency band
77MHz to 108MHz
Designed for application requiring back-to-back diode configuration for optimum signal distortion and detuning
High tuning ratio at low supply voltage (car radio) Monolitic chip (mon cathode) for perfect dual diode tracking
Good C- V linearity High figure of merit
D 1
D 2
Type BB844
Package SOT23
Configuration mon cathode
LS (n H) Marking 1.8 SNs
Maximum Ratings at TA = 25°C, unless otherwise specified Parameter Symbol Diode reverse voltage Peak reverse voltage Forward current Operating temperature range Storage temperature VR VRM IF Top Tstg
Value 18 20 50 -55 ... 150 -55 ... 150
Unit V m A °C
Nov-07-2002
Electrical Characteristics at TA = 25°C, unless otherwise specified Symbol Values Parameter min. DC Characteristics Reverse current VR = 16 V VR = 16 V, TA = 85 °C AC Characteristics Diode capacitance
VR = 2 V, f = 1 MHz VR = 4 V, f...
