CDB4398 Cirrus Logic Inc, CDB4398 Datasheet - Page 38

• Manufacturer Part Number: CDB4398
• Description: BOARD EVAL FOR CS4398 DAC
• Manufacturer: Cirrus Logic Inc

Specifications of CDB4398

• Number Of Dac's: 2
• Number Of Bits: 24
• Outputs And Type: 2, Differential
• Sampling Rate (per Second): 192k
• Data Interface: I²C, SPI™
• Dac Type: Voltage
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -10°C ~ 70°C
• Utilized Ic / Part: CS4398
• Description/function: Audio D/A
• Operating Supply Voltage: 5 V
• Product: Audio Modules
• For Use With/related Products: CS4398
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1155

38
7.9
7.9.1
7.9.2
7.9.3
7.9.4
Reserved Reserved Reserved Reserved STATIC_DSD INVALID_DSD
7
0
Misc. Control - Register 09h
Static DSD Detect (Static_DSD) Bit 3
Function:
When set to 1 (default), the DSD processor checks for 28 consecutive zeroes or ones and, if detected,
sends a mute signal to the DACs. The MUTEC pins will eventually go active according to the DAMUTE
register.
When set to 0, this function is disabled.
Invalid DSD Detect (Invalid_DSD) Bit 2
Function:
When set to 1, the DSD processor checks for greater than 24 out of 28 bits of the same value and, if de-
tected, will attenuate the data sent to the DACs. The MUTEC pins go active according to the DAMUTE
register.
When set to 0 (default), this function is disabled.
DSD Phase Modulation Mode Select (DSD_PM_mode) Bit 1
Function:
When set to 0 (default), the 128Fs (BCKA) clock should be input to DSD_SCLK for phase modulation
mode. (See Figure 13 on page 24)
When set to 1, the 64Fs (BCKD) clock should be input to DSD_SCLK for phase modulation mode.
DSD Phase Modulation Mode Enable (DSD_PM_EN) Bit 0
Function:
When set to 1, DSD phase modulation input mode is enabled and the DSD_PM_MODE bit should be set
accordingly.
When set to 0 (default), this function is disabled (DSD normal mode).
6
0
0
5
4
0
1
3
2
0
DSD_PM_MODE DSD_PM_EN
1
0
CS4398
DS568F1
0
0