User guide

DS900F1 48
CS4244
6.3 Clock & SP Select (Address 06h)
6.3.1 Base Rate Advisory
Advises the CS4244 of the base rate of the incoming base rate. This allows for the de-emphasis filters to
be adjusted appropriately. The CS4244 includes on-chip digital de-emphasis for 32, 44.1, and 48 kHz
base rates. It is not supported for 96 kHz or for any settings in Double Speed Mode.
6.3.2 Speed Mode
Sets the speed mode in which the CS4244 will operate..
6.3.3 Master Clock Rate
Sets the rate at which the master clock is entering the CS4244. Settings are given in “x” multiplied by the
incoming sample rate, as MCLK must scale directly with incoming sample rate.
76543210
BASE RATE[1:0] SPEED MODE[1:0] MCLK RATE[2:0] Reserved
BASE RATE Base Rate is:
00 48 kHz
01 44.1 kHz
10 32 kHz
11 Reserved
SPEED MODE Speed Mode is:
00 Single Speed Mode
01 Double Speed Mode
10 Reserved
11 Auto Detect (Slave Mode only)
MCLK RATE MCLK is:
000
256xF
S
in Single Speed Mode or 128xF
S
in Double Speed Mode
001 384xF
S
in Single Speed Mode or 192xF
S
in Double Speed Mode
010 512xF
S
in Single Speed Mode or 256xF
S
in Double Speed Modex
011 Reserved
100 Reserved
101 Reserved
110 Reserved
111 Reserved