CS4226 Datasheet, PDF (46/60 Pages) Cirrus Logic – Surround Sound Codec

CDB4226
Pre-Configured Setups
For ease of implementation, batch files are provid-
ed along with the required jumper and dip switch
settings for two modes of operation. Choice of op-
eration mode is based primarily on the desired
source of the data. All jumper settings not men-
tioned remain unchanged.
1: Receiver Mode
The clock source is a recovered clock from the
S/PDIF coax input, RX_DIG. Recovered data is
transmitted by the CS8402A. Additionally,
SDOUT1 data is looped back to the DACs. Type
"powuprx1" at the appropriate prompt to run the
batch file for this mode of operation.
Signal Flow:
DIP Switch Settings:
LOCATED ON S2
SDIN_M0 - 1 = >OPEN
SDIN_M1 - 1 = >OPEN
SDIN_M2 - 0 = >CLOSED
SDOUT_M0 -0 = >CLOSED
I²S - 0 = >CLOSED
LOCATED ON SW1
BITS0 - 0 = >CLOSED
BITS1 -1 = > OPEN
SP_L_RB - 1 = >OPEN
SP_RISING - 0 = >CLOSED
MCLK_S0 - 0 = >CLOSED
MCLK_S1 - 0 = >CLOSED
Jumper Settings:
XT_SEL - XTAL
RX_SEL - RX2, RX3 or RX4
HRDR5,6,7,8 - CSOUT
Batch File:
POWUPRX1.BAT
2: Crystal mode
The clock source is a crystal (Y1). Stereo ADC out-
put data is transmitted by the CS8402A. SDOUT1
data is looped back to the DACs. The stereo signal
is applied to stereo pair 1 on the evaluation board
(AIN1L/R). Type "powupxtl" at the appropriate
prompt to run the batch file for this mode of opera-
tion.
Figure 1. CDB4226 in Receiver Mode
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DS188DB1