전자부품 데이터시트 검색엔진 |
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CS42438 데이터시트(PDF) 10 Page - Cirrus Logic |
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CS42438 데이터시트(HTML) 10 Page - Cirrus Logic |
10 / 61 page 10 DS646F2 CS42438 AUX_LRCK 15 Auxiliary Left/Right Clock (Output) - Determines which channel, Left or Right, is currently active on the Auxiliary serial audio data line. AUX_SCLK 16 Auxiliary Serial Clock (Output) - Serial clock for the Auxiliary serial audio interface. AUX_SDIN 17 Auxiliary Serial Input (Input) - The 42438 provides an additional serial input for two’s comple- ment serial audio data. AOUT1 +,- AOUT2 +,- AOUT3 +,- AOUT4 +,- AOUT5 +,- AOUT6 +,- AOUT7 +,- AOUT8 +,- 20,19 21,22 24,23 25,26 28,27 29,30 32,31, 33,34 Differential Analog Output (Output) - The full-scale differential analog output level is specified in the Analog Characteristics specification table. Each positive leg of the differential outputs may also be used single-ended. AGND 35,48 Analog Ground (Input) - Ground reference for the analog section. VQ 36 Quiescent Voltage (Output) - Filter connection for internal quiescent reference voltage. VA 37,46 Analog Power (Input) - Positive power supply for the analog section. AIN1 +,- AIN2 +,- AIN3 +,- AIN4 +,- AIN5 +,- AIN6 +,- 39,38 41,40 43,42 45,44 50,49 52,51 Differential Analog Input (Input) - Signals are presented differentially to the delta-sigma modula- tors. The full-scale input level is specified in the Analog Characteristics specification table. Single- ended inputs may be applied to the positive terminals when the ADCx SINGLE bit is enabled. Once in Single-Ended Mode, the negative terminal of AIN1-AIN4 must be externally driven to common mode. See below for a description of AIN5-AIN6 in Single-Ended Mode. AIN5 A,B AIN6 A,B 50,49 52,51 Single-Ended Analog Input (Input) - In Single-Ended Mode, an internal analog mux allows selection between two channels for both analog inputs AIN5 and AIN6 (see Sections 7.6.6-7.6.8 for details). The unused leg of each input is internally connected to common mode. The full-scale input level is specified in the Analog Characteristics specification table. FILT+ 47 Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling cir- cuits. |
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