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STA350B датащи(PDF) 19 Page - STMicroelectronics |
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STA350B датащи(HTML) 19 Page - STMicroelectronics |
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19 / 94 page ![]() DocID018572 Rev 7 19/94 STA350B, STA350BW Electrical specifications 94 Figure 3. Test circuit XTALK Crosstalk FFX stereo mode, <5 kHz One channel driven at 1 W Other channel measured 80 dB PSRR Power Supply Rejection Ratio FFX stereo mode, <5 kHz VRipple01V RMS Audio input = dither only 80 dB η Peak efficiency, FFX mode Po = 2 x 25 W into 8 Ω 90 % Peak efficiency, binary modes Po = 2 x 10W into 4 Ω + 1 x 20W into 8 Ω 86 1. Refer to Figure 3: Test circuit. 2. Limit current if the register (OCRB Section 8.3.3) overcurrent warning detect adjustment bypass is enabled. When disabled refer to the Isc. Table 6. Electrical specifications - power section (continued) Symbol Parameter Conditions Min. Typ. Max. Unit tr tf VC C 0.9*V C C VC C /2 0.1* V C C t OUT x Y +V C C D u ty cycle = 50% IN x Y MP MN OUT x Y GND vdc = V C C /2 R= 8 Ω + - Low cu rre n t de ad tim e = M A X (tr,tf) tr tf VC C 0.9*V C C VC C /2 0.1* V C C t OUT x Y +V C C D u ty cycle = 50% IN x Y MP MN OUT x Y GND vdc = V C C /2 R= 8 Ω + - Low cu rre n t de ad tim e = M A X (tr,tf) AM045169v1 |
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