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SL6649-MPEF Arkusz danych(PDF) 4 Page - Zarlink Semiconductor Inc |
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SL6649-MPEF Arkusz danych(HTML) 4 Page - Zarlink Semiconductor Inc |
4 / 14 page SL6649-1 3 TYPICAL ELECTRICAL CHARACTERISTICS These characteristics are guaranteed by design. T amb = 25 °C, V CC 1 = 2.5V, V CC 2 = 3.5V Value Characteristic Pin Min Typ Max Units Conditions RF Amplifier Noise Figure 5.5 dB RS = 50 Ω Power Gain 14 dB Input Impedance 19 See Fig. 8 Mixer RF Input Impedance 23, 24 See Figs. 9 (a) and (b) LO Input Impedance 26, 27 See Fig. 10 LO DC Bias Voltage 26, 27 V Equal to pin 25 Detector Output Current 7 ±4 µA Colpitts Oscillator Frequency 16 15 kHz R = 270K, Pin 3 to GND Output Voltage 16 20 mVp-p R L >> 1M Ω N.B. Refer to Channel Filter Fig. 4 RECEIVER CHARACTERISTICS (GPS DEMONSTRATION BOARD) Measurement conditions (unless otherwise stated): Applications circuit diagram Fig.6; V CC 1 = 1.3V; V CC 2 = 2.3V; T amb = 25 °C; Colpitts oscillator resistor = 270kΩ; mixer input A and B phase balance = 180°; local oscillator input A and B phase balance = 90 °. Measurement methods as described by CEPT Res 2 specification. F IN = 153MHz (512 baud). Value Characteristic Min Typ Max Units Conditions Terminal Sensitivity Tone -127 -124 dBm ∆f = 4.5kHz, R S = 50 Ω only 4/5 call reception Deviation Acceptance ±2.5 kHz 3dB De-Sensitisation. F IN = F LO Centre Frequency Acceptance ±2.0 ±2.5 kHz ∆f = 4.5kHz Adjacent Channel Rejection 65 70 dB ∆f = 4.5kHz Channel Spacing 25kHz Adjacent + 1 Channel Rejection 65 70 dB External capacitors on test Third Order Intermod adj-1 + adj-2 52 53 dB pins A and B. Figure 2: Block Diagram of SL6649-1 Direct Conversion Receiver |
Podobny numer części - SL6649-MPEF |
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Podobny opis - SL6649-MPEF |
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