CS5342_06 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'CS5342_06' PDF : 21 Pages View PDF
4. APPLICATIONS
CS5342
4.1 Single-, Double-, and Quad-Speed Modes
The CS5342 can support output sample rates from 2 kHz to 200 kHz. The proper speed mode can be de-
termined by the desired output sample rate and the external MCLK/LRCK ratio, as shown in Table 1.
MCLK/LRCK
Speed Mode
Ratio
Single-Speed Mode
768x
384x
Double-Speed Mode
384x
192x
Quad-Speed Mode
192x
96x*
* Quad-Speed Mode, 96x only available in Master Mode.
Output Sample Rate Range (kHz)
43 - 50
2 - 50
86 - 100
50 - 100
172 - 200
100 - 200
Table 1. Speed Modes and the Associated Output Sample Rates (Fs)
4.2 Operation as Either a Clock Master or Slave
The CS5342 supports operation as either a clock master or slave. As a clock master, the LRCK and SCLK
pins are outputs with the left/right and serial clocks synchronously generated on-chip. As a clock slave, the
LRCK and SCLK pins are inputs and require the left/right and serial clocks to be externally generated. The
selection of clock master or slave is made via the Mode pins as shown in Table 2.
M1 (Pin 16)
0
0
1
1
M0 (Pin 1)
0
1
0
1
MODE
Clock Master, Single-Speed Mode
Clock Master, Double-Speed Mode
Clock Master, Quad-Speed Mode
Clock Slave, All Speed Modes
Table 2. CS5342 Mode Control
14
DS608F1
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