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ATA8402 Datasheet(PDF) 10 Page - ATMEL Corporation |
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ATA8402 Datasheet(HTML) 10 Page - ATMEL Corporation |
10 / 12 page 10 4982A–IND–02/07 ATA8402 Output power variation for the full temperature range Tamb = 25°C, V S = 3.0V VS = 2.0V ∆P Ref ∆P Ref –1.5 –4.0 dB dB Output power variation for the full temperature range Tamb = 25°C, V S = 3.0V V S = 2.0V POut = PRef + ∆PRef ∆P Ref ∆P Ref –2.0 –4.5 dB dB Achievable output-power range Selectable by load impedance POut_typ 07.5 dBm Spurious emission fCLK = f0/128 Load capacitance at pin CLK = 10 pF f O ±1 × fCLK fO ±4 × fCLK Other spurious are lower –55 –52 dBc dBc Oscillator frequency XTO (= phase comparator frequency) f XTO = f0/32 f XTAL = resonant frequency of the XTAL, CM ≤ 10 fF, load capacitance selected accordingly T amb = 25°C fXTO fXTAL ppm PLL loop bandwidth 250 kHz Phase noise of phase comparator Referred to f PC = fXT0, 25 kHz distance to carrier –116 –110 dBc/Hz In-loop phase noise PLL 25 kHz distance to carrier –86 –80 dBc/Hz Phase noise VCO At 1 MHz At 36 MHz –94 –125 –90 –121 dBc/Hz dBc/Hz Frequency range of VCO f VCO 429 439 MHz Clock output frequency (CMOS microcontroller compatible) f0/128 MHz Voltage swing at pin CLK C Load ≤10 pF V0h V0l VS × 0.8 VS × 0.2 V V Series resonance R of the crystal Rs 110 Ω Capacitive load at pin XT0 7pF FSK modulation frequency rate Duty cycle of the modulation signal = 50% 0 32 kHz ASK modulation frequency rate Duty cycle of the modulation signal = 50% 0 50 kHz ENABLE input Low level input voltage High level input voltage Input current high VIl V Ih IIn 1.7 0.25 20 V V µA PA_ENABLE input Low level input voltage High level input voltage Input current high VIl VIh I In 1.7 0.25 VS (1) 5 V V µA 7. Electrical Characteristics (Continued) VS = 2.0V to 4.0V, Tamb = 25°C unless otherwise specified. Typical values are given at VS = 3.0 V and Tamb = 25°C. All parameters are referred to GND (pin 7). Parameters Test Conditions Symbol Min. Typ. Max. Unit Note: 1. If V S is higher than 3.6V, the maximum voltage will be reduced to 3.6V. |
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