STM351-2 STMICROELECTRONICS | Alldatasheet
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WIRELESS LOCAL LOOP APPLICA TIONS CASE STYLE H170 .LINEAR POWER AMPLIFIER .325-351 MHz .20 VOLTS .INPUT/OUTPUT 50 OHMS .POUT = 1.0 WAVG (2.0 W PEP) .GAIN = 21 dB
DESCRIPTION
The STM351-2 module is designed to be used as a linear RF Power Amplifier for WLL or other fixed radio access subscriber applications. This particular model is one of several in de- sign covering the 300-500 MHz frequency range in individual bandwidths of 25 MHz each. Band splits and corresponding part numbers for all bands are as follows: PIN CONNECTION ORDERCODE BRANDING STM351-2 STM351-2 ABSOLUTE MAXIMUM RATINGS (T case =25°C) Symbol Parameter Value Unit V CC DC Supply Voltage +21 Vdc ICC(q) Quiescent Current (pin 7) 200 mAdc ICC Operating Current (pin 7) 500 mAdc P IN RF Input Power 30 mW POUT RF Output Power 2.0 W AVG TSTG Storage Temperature -30 to +100 °C TC Operating Case Temperature − 20 to +60 °C STM351-2 1. RF Input 5. I BB 2. N/C 6. GND 3. GND 7. V CC (+20VDC) 4. N/C 8. RF output PRELIMINARY DATA STM326-2 300-326 MHz STM351-2 325-351 MHz PROTOTYPES STM376-2 350-376 MHz AVAILABLE STM401-2 375-401 MHz STM426-2 400-426 MHz STM451-2 425-451 MHz STM476-2 450-476 MHz STM500-2 475-500 MHz June 15, 1998 1/3
ELECTRICAL SPECIFICATIONS (T case = 30°C, VCC = 20.0Vdc, VBB = 8.8 Vdc) Symbol Parameter Test Conditions Value Unit Min. Typ. Max. BW Frequency Range 325 — 351 MHz G P Power Gain POUT = 1.0 W* 21 23 25 dB η Efficiency POUT = 1.0 W* 11 12.5 — % Input VSWR P OUT = 1.0 W* Z S,ZL = 50Ω —— 1 . 5 : 1 V S W R ICC(q) Quiescent Current PIN = 0W 110 120 130 mA ICC Collector Supply Current POUT = 1.0 W* —3 7 5 4 2 5m A IBB Bias Current POUT = 1.0 W* —6 5—m A H Harmonics POUT = 1.0 W* F = 325 MHz —- 3 4 -30 dBc IMD Intermodulation Distortion POUT = 1.0 W* -46 -40 dBc — Load Mismatch Load VSWR = ∞ :1 (All phase angles) POUT = 1.0 W* No Degradation in Output Power after Load Restoration — Stability Load VSWR = 5:1 (All phase angles) POUT = 1.0 W* All Spurious outputs more than 50dB below carrier * 2 Tone Test, 50 KHz spacing: POUT =1 . 0WAVG (2.0 WPEP ) MODULE DC AND TEST FIXTURE CONFIGURATION 12 34 567 8 N/C N/C RF IN RF OUT 50 Ω Line 50 Ω Line 120 Ω 1W 10 uF 3.3 uF 1000 pF 0.1 uF +8.8VDC +20 VDC * Bead 300 pF 300 pF 1000 pF STM351-2
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