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SI2457 Arkusz danych(PDF) 6 Page - Silicon Laboratories |
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SI2457 Arkusz danych(HTML) 6 Page - Silicon Laboratories |
6 / 74 page Si2457/34/15/04 6 Rev. 1.0 Table 4. AC Characteristics (VD = 3.0 to 3.6 V, TA = 0 to 70 °C for F-Grade, Fs = 8 kHz) Parameter Symbol Test Condition Min Typ Max Unit Sample Rate Fs — 8 — kHz Clock Input Frequency FXTL default — 4.9152 — MHz Clock Input Frequency FXTL >10 k Ω resistor between DCD and GND —27— MHz Receive Frequency Response Low –3 dBFS Corner, FILT = 0 — 5 — Hz Receive Frequency Response Low –3 dBFS Corner, FILT = 1 — 200 — Hz Transmit Full Scale Level1 VFS —1.1 — VPEAK Receive Full Scale Level1,2 VFS —1.1 — VPEAK Dynamic Range3 DR ILIM = 0, DCV = 11, MINI = 00 DCR = 0, IL = 100 mA —80— dB Dynamic Range3 DR ILIM = 0, DCV = 00, MINI = 11 DCR = 0, IL =20mA —80— dB Dynamic Range3 DR ILIM = 1, DCV = 11, MINI = 00 DCR = 0, IL =50mA —80— dB Transmit Total Harmonic Distortion4 THD ILIM = 0, DCV = 11, MINI = 00 DCR = 0, IL = 100 mA —–72 — dB Transmit Total Harmonic Distortion4 THD ILIM = 0, DCV = 00, MINI = 11 DCR = 0, IL =20mA —–78 — dB Receive Total Harmonic Distortion4 THD ILIM = 0, DCV = 00, MINI = 11 DCR = 0, IL =20mA —–78 — dB Receive Total Harmonic Distortion4 THD ILIM = 1,DCV = 11, MINI=00 DCR = 0, IL =50mA —–78 — dB Dynamic Range (Caller ID Mode) DRCID VIN = 1 kHz, –13 dBm — 50 — dB Notes: 1. Measured at TIP and RING with 600 Ω termination at 1 kHz, as shown in Figure 1 on page 5. 2. Receive full scale level produces –0.9 dBFS at DTX. 3. DR = 20 x log |Vin| + 20 x log (rms signal/rms noise). Applies to both transmit and receive paths. Vin = 1 kHz, –3 dBFS. 4. Vin = 1 kHz, –3 dBFS. THD = 20 x log (rms distortion/rms signal). |
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