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TDA1547 bảng dữ liệu(PDF) 6 Page - NXP Semiconductors |
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TDA1547 bảng dữ liệu(HTML) 6 Page - NXP Semiconductors |
6 / 18 page September 1991 6 Philips Semiconductors Product specification Dual top-performance bitstream DAC TDA1547 Notes to the quick reference data 1. Output level tracks linearly with both the clock frequency and the reference voltage (Vref L or Vref R). 2. Device measured in differential mode with external components as shown in Fig.5. 3. Measured with a one-bit data signal generated by the SAA7350 from an 8 fs (352.8 kHz), 20-bit, 1 kHz digital sinewave. Measured over a 20 Hz to 20 kHz bandwidth. 4. Measured with a one-bit data signal generated by the SAA7350 from an 8 fs (352.8 kHz), 20-bit, 20 Hz to 20 kHz digital sinewave. Measured over a 20 Hz to 20 kHz bandwidth. 5. The specified signal-to-noise ratio includes noise introduced by the application components as shown in Fig.5. FUNCTIONAL DESCRIPTION Both channels are completely separated to reach the desired high crosstalk suppression level. Each channel consists of the following functional parts: THERMAL RESISTANCE Supply current (THD + N)/S THD + Noise; 0 dB 1 kHz; notes 2 and 3 −−101 −96 dB − 0.0009 0.0016 % (THD + N)/S THD + Noise; 0 dB f = 20 Hz to 20 kHz; −−101 - dB notes 2 and 4 − 0.0009 - % (THD + N)/S THD + Noise; −20 dB f = 1 kHz; notes 2 and 3 −−88 −84 dB (THD + N)/S THD + Noise; −60 dB f = 1 kHz; notes 2 and 3 −−48 −44 dB S/N signal-to-noise ratio pattern 0101..; notes 2 and 5 109 111 − dB S/N signal-to-noise ratio; “A”-weighting pattern 0101..; notes 2 and 5 − 113 − dB fCLK maximum clock frequency −− 10 MHz α channel separation f = 1 kHz 101 115 − dB Tamb operating ambient temperature −20 − 70 °C − One-bit input, which latches the incoming data to the system clock. − Switch driver circuit, which generates the non-overlapping clock- and data-signals that control the DAC switched capacitor networks. − Switched capacitor network, this forms the actual DAC function, it supplies charge packets to the low-pass filter, under control of the incoming one-bit code. − Two high performance operational amplifiers, that perform the charge packet to voltage conversion and deliver a differential output signal. The first pole of the low-pass filter is built around them. SYMBOL PARAMETER MAX. UNIT Rth j-a from junction to ambient 60 K/W SYMBOL PARAMETER CONDITION MIN TYP MAX UNIT |
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