420 ,NPN Silicon RF TransistorSTART420NPN Silicon RF Transistor• LOW NOISE FIGURE: NFmin = 1.05dB @ 1.8GHz, 5mA, 2V• COMPRESSION ..
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54F821SDM ,10-Bit D-Type Flip-Flop54F/74F82110-BitD-TypeFlip-FlopDecember199454F/74F82110-BitD-TypeFlip-FlopGeneralDescription
420
NPN Silicon RF Transistor
1/7July, 3 2002
START420NPN Silicon RF Transistor
LOW NOISE FIGURE: NFmin = 1.05dB
@ 1.8GHz, 5mA, 2V
COMPRESSION P1dB = 12.5dBm
@ 1.8GHz, 20mA, 2V
ULTRA MINIATURE SOT343 PACKAGE
DESCRIPTIONThe START420 is a member of the START family
that provide market with the state of the art of RF
silicon process. Manufacturated in the third
generation of ST proprietary bipolar process, it
offers the best mix of gain and NF for given
breakdown voltage(BVceo).
It reaches performance level only achieved with
GaAs products before.
ABSOLUTE MAXIMUM RATINGS
ABSOLUTE MAXIMUM RATINGS
START420Note(1): Gms = | S21 / S12 |
ELECTRICAL CHARACTERISTICS (Tj=25 o C,unless otherwise specified)
PINOUT
PIN CONNECTION
3/7
START420
SPICE PARAMETERS (Gummel-Poon Model, Berkley-SPICE 2G.6 Syntax)
PACKAGE EQUIVALENT CIRCUIT
TRANSISTOR CHIP DATA
FOR MORE ACCURACY SIMULATION IN SATURATION REGION :Adding the 5 Spice parameters showed in Table A and using ST Spice Library (available on request) you
can achieve a more accuracy simulation in the saturation region. ST Spice library is compatible with
following simulators: ELDO MENTOR (any version), SPECTRE CADENCE (any version), ADS (version
2001 only).
Table A (Spice Parameters extracted in saturation region)In order to avoid high complexity of the package equivalent circuit, the two emitter leads of SOT-343
package are combined in one electrical connection.
START420
COMMON EMITTER S-PARAMETERS ( VCE = 2V, IC = 20mA )
5/7
START420
TAPE & REEL DIMENSIONS
DEVICE ORIENTATION
START420
PACKAGE DIMENSIONS SOT343 (SC-70 4 leads)
