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TDA8751T データシート(PDF) 9 Page - NXP Semiconductors |
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TDA8751T データシート(HTML) 9 Page - NXP Semiconductors |
9 / 24 page 1999 Aug 20 9 Philips Semiconductors Product specification QPSK receiver TDA8051 V1(I-Q) DC output level on pin I-Q_OUT − 3.1 − V Ro(dif) output differential resistance − 460 −Ω Overall: Rs =75 Ω/Ri =4kΩ unless otherwise specified Vo voltage output on pins I_OUT and Q_OUT see Fig.8 − 48 − dBmV LOlev LO level on pins I_OUT and Q_OUT see Fig.8 −− −45 dBc So spurious emission on pins I_OUT and Q_OUT f = 0 to 5 MHz; see Fig.8 −−40 − dBc ∆GI-Q gain error on pins I_OUT and Q_OUT see Fig.8 −±1 − dB AMR AM rejection in I and Q channels guaranteed by design; see Fig.9 −− −40 dBc IM3 3rd-order intermodulation guaranteed by design; see Fig.10 −− −45 dBc Voltage Controlled Oscillator (VCO) fvco(min) min. oscillation frequency note 1 − 88 − MHz fvco(max) max. oscillation frequency note 1 − 260 − MHz αN (osc) oscillator phase noise at 10 kHz −−75 − dBc/Hz at 100 kHz −−95 − dBc/Hz Phase Locked Loop (PLL) Step frequency step size at pin VCO output 100 − 500 kHz RD fixed reference divider ratio − 2 −− RDR programmable reference divider ratio 2 − 80 − ND programmable fix main divider ratio − 4 −− NDR main divider ratio 128 − 2600 − I(CP) charge pump current − 300 −µA Crystal oscillator fxtal crystal frequency rxtal = 25 to 200 Ω 1 − 4 MHz Zi crystal oscillator input impedance (absolute value) fxtal = 4 MHz 600 120 0 −Ω VI(DC) DC input level − 2.9 − V Vi input level − 30 − mVrms SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT |
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