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ATA5756-6DQ Datasheet(PDF) 10 Page - ATMEL Corporation |
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ATA5756-6DQ Datasheet(HTML) 10 Page - ATMEL Corporation |
10 / 20 page 10 ATA5756/ATA5757 4702H–RKE–09/04 Output power measurement can be done with the circuit as shown in Figure 9. Please note that the component values must be changed to compensate the individual board parasitics until the ATA5756/ATA5757 has the right load impedance. Also, the damping of the cable used to measure the output power must be calibrated. Figure 9. Output Power Measurement ATA5756/ATA5757 Table 2 and Table 3 show the output power and the supply current versus temperature and supply voltage. Table 2. Output Power and Supply Current versus Temperature and Supply Voltage for the ATA5756 with Z Load = 380 Ω + j340 Ω (Correlation Tested) Ambient Temperature V S = 2.0 V (dBm/mA) V S = 3.0 V (dBm/mA) V S = 3.6 V (dBm/mA) Tamb = -40°C 3.1 ±1.5 / 7.2 6.1 +2/-3 / 7.7 7.1 +2/-3 / 7.9 T amb = +25°C 3.0 ±1.5 / 7.5 6.0 ±2 / 8.1 7.4 ±2 / 8.3 T amb = +85°C 3.0 ±1.5 / 7.5 5.8 +2/-3 / 8.2 7.2 +2/-3 / 8.5 Tamb = +125°C 2.5 ±1.5 / 7.6 5.5 +2/-3 / 8.2 6.5 +2/-3 / 8.5 Table 3. Output Power and Supply Current versus Temperature and Supply Voltage for the ATA5757 with Z Load = 280 Ω + j310 Ω (Correlation Tested) Ambient Temperature V S = 2.0 V (dBm/mA) V S = 3.0 V (dBm/mA) V S = 3.6 V (dBm/mA) Tamb = -40°C 3.3 ±1.5 / 7.6 6.2 +2/-3 / 8.1 7.1 +2/-3 / 8.4 T amb = +25°C 3.0 ±1.5 / 8.0 6.0 ±2 / 8.5 7.5 ±2 / 8.8 T amb = +85°C 2.8 ±1.5 / 8.0 5.7 +2/-3 / 8.6 6.8 +2/-3 / 8.8 Tamb = +125°C 2.7 ±1.5 / 8.1 5.5 +2/-3 / 8.7 6.6 +2/-3 / 8.9 ~ ANT2 ANT1 Rin Power meter C1 = 1n L1 = 68 nH/ 39 nH C2 = 2.2 pF/1.8 pF Z Lopt VS Z = 50 Ω 50 Ω |
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