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START405
NPN Silicon RF Transistor
* LOW NOISE FIGURE: NFmin = 1.1dB @ 1.8GHz, 2mA, 2V * COMPRESSION P1dB = 5dBm @ 1.8GHz, 5mA, 2V * TRANSITION FREQUENCY 42GHz * LOW CURRENT CONSUMPTION * ULTRA MINIATURE SOT343 PACKAGE
SOT343 (SC70) ORDER CODE START405TR BRANDING 405
DESCRIPTION The START405 is a member of the START family that provide the state of the art of RF silicon process to the market. 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 offers performance level only archived with GaAs products before.
APPLICATIONS * LNA FOR GSM/DCS, DECT, PCS, PCN, CDMA, W-CDMA * GENERAL PURPOSE 500MHz-5GHz
ABSOLUTE MAXIMUM RATINGS
Symbol Vceo Vcbo Vebo Ic Ib Ptot Tstg Tj Collector emitter voltage Collector base voltage Emitter base voltage Collector current Base current Total dissipation, Ts = TBD Storage temperature Max. operating junction temperature Parameter Value 4.5 15 1.5 10 1 45 -65 to 150 150 Unit V V V mA mA mW
o o
C C
ABSOLUTE MAXIMUM RATINGS
Rthjs Thermal Resistance Junction soldering point 270
o
C/W
July, 3 2002
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ELECTRICAL CHARACTERISTICS (Tj=25 oC,unless otherwise specified)
Symbol Icbo Iebo Hfe NFmin Ga |S21|2 Gms
(1)
Parameter Collector cutoff current Emitter-base cutoff current DC current gain Minimim noise figure NFmin associated gain Insertion power gain Maximum stable gain 1dB compression point Ouput third order intercept point
Test Conditions Vcb =5V, Ie = 0A Veb = 1.5V, Ic = 0A Ic = 5mA, Vce = 4V Ic = 2mA, Vce = 2V, f = 1.8GHz Ic = 2mA, Vce = 2V, f = 1.8GHz Ic = 5mA, Vce = 2V, f = 1.8GHz Ic = 5mA, Vce = 2V, f = 1.8GHz Ic = 5mA,Vce = 2V, f = 1.8GHz Ic = 5mA,Vce = 2V, f = 1.8GHz
Min.
Typ.
Max. 150 15
Unit nA A
160 1.1 19 17.4 24.2 5 15 dB dB dB dB dBm dBm
P-1dB OIP3
Note(1): Gms = | S21 / S12 |
PINOUT
4
3
PIN CONNECTION
Top view
1 2
Pin No. 1 3 2,4
Description BASE COLLECTOR EMITTER
SOT343
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SPICE PARAMETERS (Gummel-Poon Model, Berkley-SPICE 2G.6 Syntax) TRANSISTOR CHIP DATA
Symbol TMEAS IS ISE NR ISC IKF TR XTF RB RC CJE CJC CJS Value 27.0 1.9E-17 1.58E-13 1 7.40E-17 {0.151*((T(oC)+273.15)/ 300.15)^(-1.774)} 7E-10 42 34.07 7.9 111E-15 53E-15 33E-15 Symbol FC EG NF NE BR NC PTF ITF RBM RE VJE VJC VJS Value 0.5 1.12 1 2.711 8.59 1.312 38 0.42 6.1 1.25 1.1 0.69 0.4 Symbol XJBC XTI BF VAF VAR TF VTF MJE MJC MJS IKR XTB Value 0.3 3.57 340 79 2.35 4.1E-12 14.7 0.414 0.266 0.22 2.29E-3 -0.744
PACKAGE EQUIVALENT CIRCUIT
C2 C=5 fF
B
.
L4 L=0.6 nH
.
L3
B'
L=0.35 nH
Transistor Chip E'
L1
C'
L5 L=0.3 nH
.
L6 L=0.6 nH
.
C
L=0.3 nH
C1 C=430 fF L2
. .
E
C3 C=300 fF L=0.15 nH
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. 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) RW
2.594
Vjj
0.769
ENP
2.045
VRP
{8.67*((TEMPER+273.15)/300.15)^(0.839)}
RP
1.00E-6 3/7
START405
COMMON EMITTER S-PARAMETERS ( VCE = 2V, IC = 5mA )
S11 -5 -23 -38 -41 -53 -58 -61 -64 -64 -67 -78 S21 176 174 174 175 177 180 178 172 164 156 146
FREQ
(MHz) 0.1 0.5 0.9 1 1.5 1.8 2 2.5 3 3.5 4
IS11I 0.903 0.882 0.825 0.809 0.713 0.674 0.642 0.579 0.523 0.462 0.372
IS21I 12.29 10.96 9.71 9.42 8.11 7.43 6.99 6.01 5.12 4.31 3.48
IS12I 0.007 0.014 0.021 0.022 0.027 0.028 0.028 0.028 0.030 0.039 0.065
S12 95 97 98 99 107 114 122 148 175 131 94
IS22I 0.991 0.971 0.918 0.906 0.850 0.829 0.820 0.815 0.815 0.787 0.644
S22 -2 -11 -19 -20 -24 -27 -28 -30 -31 -35 -41
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TAPE & REEL DIMENSIONS
mm MIN. A C D N T Ao Bo Ko Po P 3.8 (cumulative 10 Po) 2.25 2.7 1.2 4.0 4.0 4.2 (cumulative 10 Po) 178.5 12.8 20.2 54.5 55 55.5 14.4 TYP. 179 13.0 MAX 179.5 13.5
DEVICE ORIENTATION
TOP VIEW END VIEW
405
405
405
405
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PACKAGE DIMENSIONS SOT343 (SC-70 4 leads)
1.30
1.15-1.35
2.00-2.20
1.15
0.55-0.65
1.90-2.10
1.15-1.35
0.80-1.00 0.45
0.10-0.20
0.25-0.35
0.00-0.10
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START405
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is registered trademark of STMicroelectronics (R) 2002 STMicroelectronics - All Rights Reserved All other names are the property of their respective owners. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com
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