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LM4543VH bảng dữ liệu(PDF) 3 Page - National Semiconductor (TI) |
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LM4543VH bảng dữ liệu(HTML) 3 Page - National Semiconductor (TI) |
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3 / 16 page  Electrical Characteristics (Notes 1, 3) (Continued) The following specifications apply for AV DD = 5V, DVDD = 5V unless otherwise noted. Limits apply for TA= 25˚C. The reference for 0dB is 1Vrms unless otherwise specified. Symbol Parameter Conditions LM4543 Units (Limits) Typical (Note 7) Limit (Note 8) Analog to Digital Converters Dynamic Range (Note 2) -60dB Input THD+N, A-Weighted 90 75 dB (min) Frequency Response -1dB Bandwidth 20 kHz Digital to Analog Converters Resolution 18 Bits Dynamic Range (Note 2) -60dB Input THD+N, A-Weighted 89 85 dB (min) THD Total Harmonic Distortion V IN = -3dB, f=1kHz, RL = 10kΩ 0.01 0.03 % (max) Frequency Response -1dB Bandwidth 21 kHz Group Delay (Note 2) 1 mS (max) Out of Band Energy -40 dB Stop Band Rejection 70 dB D T Discrete Tones -96 dB Output Volume Section A S Step Size 0dB to -46.5dB 1.5 dB A M Mute Attenuation 86 dB Digital I/O (Note 2) V IL Low level input voltage 0.30 x DVDD V (max) V HI High level input voltage 0.40 x DVDD V (min) V OH High level output voltage 0.50 x DVDD V (min) V OL Low level output voltage 0.20 x DVDD V (max) I L Input Leakage Current AC Link inputs ±10 µA (max) I L Tri state Leakage Current High impedance AC Link outputs ±10 µA (max) I DR Output drive current AC Link outputs 5 mA Digital Timing Specifications (Note 2) F BC BIT_CLK frequency 12.288 MHz T BCP BIT_CLK period 81.4 nS T CH BIT_CLK high Variation of BIT_CLK period from 50% duty cycle ±20 % (max) F SYNC SYNC frequency 48 kHz T SP SYNC period 20.8 µS T SH SYNC high pulse width 1.3 µS T SL SYNC low pulse width 19.5 µS T SETUP Setup Time SDATA_IN, SDATA_OUT to falling edge of BIT_CLK 15 nS (min) T HOLD Hold Time Hold time of SDATA_IN, SDATA_OUT from falling edge of BIT_CLK 5 nS (min) T RISE Rise Time BIT_CLK, SYNC, SDATA_IN or SDATA_OUT 6 nS (max) T FALL Fall Time BIT_CLK, SYNC, SDATA_IN or SDATA_OUT 6 nS (max) T RST_LOW RESET# active low pulse width For cold reset 1.0 µS (min) T RST2CLK RESET# inactive to BIT_CLK start up For cold reset 162.8 nS (min) www.national.com 3 |
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