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ATA5423-PLSW Datasheet(PDF) 77 Page - ATMEL Corporation |
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ATA5423-PLSW Datasheet(HTML) 77 Page - ATMEL Corporation |
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77 / 100 page  77 4841D–WIRE–10/07 ATA5423/ATA5425/ATA5428/ATA5429 3.9 Impedance RF_OUT in RX mode f RF = 315 MHz 10 Z RF_OUT_RX (36 – j502) Ω C f RF = 345 MHz 10 Z RF_OUT_RX (33 – j480) Ω C f RF = 433.92 MHz 10 Z RF_OUT_RX (19 – j366) Ω C f RF = 868.3 MHz 10 Z RF_OUT_RX (2.8 – j141) Ω C f RF = 915 MHz 10 Z RF_OUT_RX (2.6 – j135) Ω C 3.10 Noise floor power amplifier at ±10 MHz/at 5 dBm fRF = 315 MHz (10) L TX10M –127 dBC/Hz C fRF = 345 MHz (10) LTX10M –126 dBC/Hz C fRF = 433.92 MHz (10) LTX10M –126 dBC/Hz C fRF = 868.3 MHz (10) LTX10M –125 dBC/Hz C fRF = 915 MHz (10) LTX10M –125 dBC/Hz C 3.11 ASK modulation rate This corresponds to 10 Kbit/s Manchester coding and 20 Kbit/s NRZ coding fData_ASK 110 kHz C 4XTO 4.1 Pulling XTO due to XTO, C L1 and CL2 tolerances Pulling at nominal temperature and supply voltage fXTAL = resonant frequency of the XTAL C0 ≥ 1.0 pF Rm ≤ 120Ω 24, 25 ∆f XTO1 A Cm ≤ 7.0 fF C m ≤ 14 fF –50 –100 fXTAL +50 +100 ppm 4.2 Transconductance XTO at start At start -up; after start -up the amplitude is regulated to VPPXTAL 24, 25 gm, XTO 19 ms B 4.3 XTO start -up time C0 ≤ 2.2 pF C m < 14fF Rm ≤ 120Ω 24, 25 T PWR_ON_IRQ_1 300 800 µs A 4.4 Maximum C0 of XTAL Required for stable operation with internal load capacitors 24, 25 C0max 3.8 pF D 4.5 Internal capacitors C L1 and CL2 24, 25 C L1, CL2 14.8 18 pF 21.2 pF B 12. Electrical Characteristics: General (Continued) This device is manufactured with an industrial (not automotive) grade process and process controls. Although this device may meet certain automotive grade criteria in performance, Atmel can not recommend that this device be used in any automotive application. All parameters refer to GND and are valid for Tamb = 25°C, VVS1 = VVS2 = 3.0V (1-battery application), VVS2 = 6.0V (2-battery application) and VVS2 = VVAUX = 5.0V (Base-station Application). Typical values are given at fRF = 433.92 MHz unless otherwise specified. Details about current consumption, timing and digital pin properties can be found in the specific sections of the “Electrical Characteristics”. No. Parameters Test Conditions Pin(1) Symbol Min. Typ. Max. Unit Type* *) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter Note: 1. Pin numbers in brackets mean they were measured with RF_IN matched to 50 Ω according to Figure 3-1 on page 11 with component values according to Table 3-2 on page 12 and RF_OUT matched to 50 Ω according to Figure 3-10 on page 21 with component values according to Table 3-7 on page 22. |
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