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SOT-223 Datasheet(PDF) 6 Page - Silicon Laboratories |
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SOT-223 Datasheet(HTML) 6 Page - Silicon Laboratories |
6 / 38 page Si3226/7 Si3208/9 6 Preliminary Rev. 0.33 Table 4. AC Characteristics (VDD = 3.13 to 3.47 V, TA = 0 to 70 °C for F-Grade, –40 to 85 °C for G-Grade) Parameter Test Condition Min Typ Max Unit TX/RX Performance Overload Level 2.5 — — VPK Overload Compression 2-Wire – PCM Figure 6 — — Single Frequency Distortion1 2-Wire – PCM or PCM – 2-Wire: 200Hz to 3.4kHz —— –65 dB PCM – 2-Wire – PCM: 200 Hz – 3.4 kHz, 16-bit Linear mode —— –65 dB Signal-to-(Noise + Distortion) Ratio2 200Hz to 3.4kHz D/A or A/D 8-bit Active off-hook, and OHT, any ZT Figure 5 — — Audio Tone Generator Signal-to- Distortion Ratio2 0 dBm0, Active off-hook, and OHT, any ZT 46 — — dB Intermodulation Distortion — — –41 dB Gain Accuracy2 2-Wire to PCM or PCM to 2-Wire 1014 Hz, Any gain setting VDD1 –VDD4 = 3.3 V ± 5% –0.2 — 0.2 dB Attenuation Distortion vs. Freq. 0 dBm 0 See AN317 Group Delay vs. Frequency Gain Tracking3 1014 Hz sine wave, reference level –10 dBm Signal level: —— — — 3 dB to –37 dB — — 0.25 dB –37 dB to –50 dB — — 0.5 dB –50 dB to –60 dB — — 1.0 dB Round-Trip Group Delay 1014 Hz, Within same time-slot — 450 500 µs Crosstalk between channels TX or RX to TX TX or RX to RX 0dBm0, 300Hz to 3.4kHz 300Hz to 3.4kHz — — — — –75 –75 dB dB 2-Wire Return Loss4 200Hz to 3.4kHz 26 30 — dB Transhybrid Balance4 300Hz to 3.4kHz 26 30 — dB Noise Performance Idle Channel Noise5 C-Message weighted — 8 12 dBrnC Psophometric weighted — –80 –78 dBmP PSRR from VDD1–VDD4 RX and TX, dc to 3.4 kHz 40 — — dB Notes: 1. The input signal level should be 0 dBm0 for frequencies greater than 100 Hz. For 100 Hz and below, the level should be –10 dBm0. The output signal magnitude at any other frequency is smaller than the maximum value specified. 2. Analog signal measured as VTIP – VRING. Assumes ideal line impedance matching. 3. The quantization errors inherent in the µ/A-law companding process can generate slightly worse gain tracking performance in the signal range of 3 to –37 dB for signal frequencies that are integer divisors of the 8 kHz PCM sampling rate. 4. VDD1–VDD4 = 3.3 V, VBAT = –52 V, no fuse resistors; RL = 600 Ω, ZS =600 Ω synthesized using RS register coefficients. 5. The level of any unwanted tones within the bandwidth of 0 to 4 kHz does not exceed –55 dBm. |
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