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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32H757AI датащи(PDF) 205 Page - STMicroelectronics |
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STM32H757AI датащи(HTML) 205 Page - STMicroelectronics |
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205 / 251 page  DS12931 Rev 1 205/251 STM32H757xI Electrical characteristics 230 6.3.31 Digital filter for Sigma-Delta Modulators (DFSDM) characteristics Unless otherwise specified, the parameters given in Table 113 for DFSDM are derived from tests performed under the ambient temperature, fPCLKx frequency and supply voltage conditions summarized in Table 23: General operating conditions. • Output speed is set to OSPEEDRy[1:0] = 10 • Capacitive load CL = 30 pF • Measurement points are done at CMOS levels: 0.5VDD • VOS level set to VOS1 Refer to Section 6.3.18: I/O port characteristics for more details on the input/output alternate function characteristics (DìFSDM_CKINx, DFSDM_DATINx, DFSDM_CKOUT for DFSDM). PGA BW PGA bandwidth for different non inverting gain Gain=2 - GBW/2 - MHz Gain=4 - GBW/4 - Gain=8 - GBW/8 - Gain=16 - GBW/16 - PGA bandwidth for different inverting gain Gain = -1 - 5.00 - MHz Gain = -3 - 3.00 - Gain = -7 - 1.50 - Gain = -15 - 0.80 - en Voltage noise density at 1 KHz output loaded with 4 kΩ -140 - nV/√ Hz at 10 KHz -55 - IDDA(OPAMP) OPAMP consumption from VDDA Normal mode no Load, quiescent mode, follower - 570 1000 µA High- speed mode - 610 1200 1. RLOAD is the resistive load connected to VSSA or to VDDA. 2. R2 is the internal resistance between the OPAMP output and th OPAMP inverting input. R1 is the internal resistance between the OPAMP inverting input and ground. PGA gain = 1 + R2/R1. Table 112. Operational amplifier characteristics (continued) Symbol Parameter Conditions Min Typ Max Unit |
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