IEI Integration ICE-DB-T6 - Manual (Page 62)

Type 6 Carrier Board Design Guide
Page 52
Pin Signal I/O Description
A30 AC_RST# O 3.3VSB CMOS CODEC Reset.
A29 AC_SYNC O 3.3V CMOS 48kHz fixed-rate, sample-synchronization signal to
the CODEC(s).
A32 AC_BITCLK O 3.3V CMOS 12.228 MHz Serial Bit Clock for CODEC.
A33 AC_SDOUT O 3.3V CMOS Serial TDM data output to the CODEC.
B30
B29
B28 AC_SDIN0
AC_SDIN1
AC_SDIN2 I 3.3VSB CMOS Serial TDM data inputs from up to 3 CODECs
Table 3-16: Audio Signals Description
3.8 Reference Circuit
Please refer to the schematic diagram of the baseboard. IEI ICE-DB-T6 reference carrier
board is embedded with the Realtek ALC892 audio controller. For the detailed
specifications of the Realtek ALC892, please go to http://www.realtek.com/ .
3.8.1 Audio Routing Guideline
3.8.1.1 Analog Power Delivery
Clean analog power delivery to the audio codec and other audio components utilizing the
5-V analog supply is critical. Excessive system noise on this supply will degrade the entire
audio sub-system. Except the GND signal, users can use independent LDO to generate
clean audio analog power.
+V5_AUDIO
EC12
100U_SMD6_3_EC_25V
FB9 FB_80_6_600MA
1 2
C188
0.1U_4_Y_16V
Q9
GS78L05N_TO92_3
TO92_123
VOUT
1
VIN
3
GND
2
+V12
Figure 3-22: Audio Analog Power Example