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SA2400ABE 数据表(PDF) 10 Page - NXP Semiconductors |
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SA2400ABE 数据表(HTML) 10 Page - NXP Semiconductors |
10 / 34 page Philips Semiconductors Product data SA2400A Single chip transceiver for 2.45 GHz ISM band 2002 Nov 04 10 9. SA2400A RECEIVER The baseband output signal extends from DC to 8 MHz, and the out-of-band frequency begins from 11 MHz. The modulated test signal used is 11 Msymbols/sec QPSK with raised cosine filtering (50% excess bandwidth for 11 Msymbols/sec). The LO frequency is the same as the Receiver channel center frequency, as the IF output is at 0 Hz. Table 6. SA2400A Receiver properties Tamb = 25 °C; VCC = 3.3 V; fLO = 2.45 GHz. Specification Conditions Min Typ Max Units RF input frequency range Typical 2.4 2.5 GHz S11 (RF input) Incl balun+matching. 50 Ω unbalanced. Note 3. LNA in high gain (see reg. description 0x06) –10 – dB LNA in low gain –7 – dB Maximum Rx voltage gain RF input to I or Q outputs 90 93 – dB Max RF input level Including application, AGCTARGET = +5. Note 1. –10 – – dBm To maintain nominal IQ output levels as defined below (“nominal I and Q output voltage”) –20 – – dBm IQ Output DC error (relative to signal, 5 µs after AGC set) –80 dBm < Pinput < –20 dBm, 1 MHz sinewave output. Note 3. – – –20 dBc AGC settling time (indicated by AGC_SET digital output) Initiated by AGC_RESET input. Constant RF input within this settling time. Begins after TX to RX switching time. Measured from AGC_RESET 0–1 transition. AGC delay registers (0x05) at default or smaller values. Note 2. a) First instance – – 8 µs b) 2nd or subsequent instances – – 11 µs AGC Max Gain settling time AGC forced to GMAX by: a) TX to RX mode transition. (measured after 5 µs TX–RX settling time). – – 0 µs b) Pulse on AGC_RESET pin (measured from end of programming) – – 3 µs Note 2. AGC Max Gain adjustment range Note 2. 54 to 85, in steps of 1 dB AGC error (I, Q signal levels) RF input between –75 to –20 dBm. AGC_RESET used. AGC delay registers (0x05) at default values. a) Random (varies each AGC cycle) –3 – 3 dB b) Slow (varies with VCC, Temperature). –1 – 1 dB c) Static (fixed, part to part) –1 – 1 dB DC cancellation time ( ft AGCRESET) With constant RF input during this time. Note 3. (after AGCRESET) a) DC offset < 50% of output signal level – – 8 µs b) DC offset <10% of output signal level – – 13 µs TX to RX switching time Output signal within 1 dB of final value, frequency error within 25 ppm of final value. Note 3. – 3 3.5 µs Noise Figure (I l b l t hi ) Less than the piece-wise linear interpolation. Note 3. (Incl balun+matching) Pinput = –85 dBm (LNA in high gain mode) – 7.5 9 dB –75 dBm – 7.5 9 dB –60 dBm (LNA in low gain mode) – 24 25 dB –45 dBm – 24 25 dB Input IP3 (50 Ω source resistance) 2 interfering tones of power Pinterferer each, at 13 and 23 MHz offsets from LO. IP3 to be more than the piece-wise linear interpolation: Pinterferer = –39 dBm –5 1 – dBm 1 dB compression of wanted signal Including matching, receiver at minimum gain. –10 0 – dBm Desens by jammer –45 dBm wanted signal at 1 MHz offset, +40 dBc jammer at 25 MHz offset. Note 3. – – 1 dB |
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类似说明 - SA2400ABE |
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