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CS4216 датащи(PDF) 46 Page - Cirrus Logic |
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CS4216 датащи(HTML) 46 Page - Cirrus Logic |
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46 / 58 page ![]() LOUT and ROUT. As with the line inputs, BNC- to-phono adapters are provided for flexibility. The line outputs can drive an impedance of 10 k Ω or more, which is the typical input imped- ance of most audio gear. AUDIO PORT HEADER The CDB4216/8 is primarily designed to evalu- ate the CS4216/8 in single chip mode, i.e. only one codec on the serial bus. This is the factory default state of the CDB4216/8. The audio port header J15 provides all buffered signals necessary to connect to the serial port of a DSP or other controller (see Figure 4). SDOU- TUB can provide an unbuffered version of SDOUT which can be used when connecting multiple codecs on the same bus. The default configuration does not connect SDOUTUB which may be connected to the SDOUT of the CS4216/8 through J17 jumper. The eval board supports both master and slave sub-modes. In master sub-modes, SSYNC and SCLK are output (and buffered) from the CS4216/8. In slave sub-modes, SSYNC and SCLK must be provided externally and must be synchronous to the master clock CLKIN. R32 20 R31 20 A0 A3 A2 A1 OEA OEB B3 B2 B1 B0 SSYNC SCLK R39 20 R44 10 R10 10 J17 U6 74HC243 CFSIN R40 20 R41 20k R49 100 9 13 8 4 J16 MF5 VD PDN J15 SDOUTUB SDOUT SDIN SCLK SSYNC R46 47.5k R42 28k VD D2 R38 806 SSYNC SCLK SDOUT SDIN DI1 MF1 MF2 MF5 PDN DO1 CS4216 1 44 43 42 33 40 39 38 13 37 4 16 8 12 614 317 515 2 18 9 11 713 8 9 10 11 1 13 6 5 4 3 MF1b DI1 DI4 DI3 DI2 J13 DI4 DI3 DI2 DI1 DO4 DO3 DO2 DO1 MF1a MF2 1 19 U7 74HC541 OE1 OE2 J18 U B DO1 Q1 237k R9 74HC541 U7 Figure 4. Serial Port Headers CDB4216 46 DS83DB4 |
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