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CS5336-BS Folha de dados(PDF) 8 Page - Cirrus Logic |
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CS5336-BS Folha de dados(HTML) 8 Page - Cirrus Logic |
8 / 34 page low, ICLKD is divided by 2 to generate OCLKD. The phase relationship between ICLKD and OCLKD is always the same, and is shown in the Switching Characteristics Timing Diagrams. When CMODE is high, OCLKD is ICLKD di- vided by 3. There are two possible phase relationships between ICLKD and OCLKD, which depend on the start-up timing between DPD and L/R, shown in Figure 2. Serial Data Interface The serial data output interface has 3 possible modes of operation: MASTER mode, SLAVE mode with FSYNC high, and SLAVE mode with FSYNC controlled. In MASTER mode, the A/D converter is driven from a master clock (ICLKD) and outputs all other clocks, derived from ICLKD (see Figure 3). Notice the one SCLK cycle delay between L/R edges and FSYNC rising edges. FSYNC brackets the 16 data bits for each chan- nel. In SLAVE mode, L/R and SCLK are inputs. L/R must be externally derived from ICLKD, and should be equal to the Output Word Rate. SCLK should be equal to the input sample rate, which is equal to OCLKD/2. Other SCLK frequencies are possible, but may degrade dynamic range because of interference effects. Data bits are clocked out via the SDATA pin using the SCLK and L/R in- puts. The rising edge of SCLK causes the ADC to Output 0 1 2 3 16 17 18 19 20 21 31 0 1 2 3 16 17 18 19 20 21 31 0 1 Output Left Audio Data Tag Bits Left Data Tag Right Audio Data Tag Bits Right Data Tag * SCLK for CS5336/8. SCLK inverted for CS5339 FSYNC Output 15 14 1 0 T2 T1 T0 15 14 1 0 T2 T1 T0 SDATA Output SCLK * L/ R Figure 3. Data Output Timing - MASTER mode Figure 4. Data Output Timing - SLAVE Mode, FSYNC high Input 0 1 2 16 17 18 19 20 31 0 1 2 16 17 18 19 20 21 31 0 1 Input FSYNC Input (high) SCLK * L/ R Left Audio Data Tag Bits Left Data Tag Right Audio Data Tag Bits Right Data Tag 15 14 1 0 T2 T1 T0 15 14 1 0 T2 T1 T0 SDATA Output * SCLK for CS5336/8. SCLK inverted for CS5339 15 15 30 CS5336, CS5338, CS5339 3-46 DS23F1 |
Nº de peça semelhante - CS5336-BS |
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Descrição semelhante - CS5336-BS |
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