User`s manual

AMBE-2000™ Vocoder Chip
User’s Manual Version 4.9
DVSI Confidential Proprietary, Subject to Change Page 49
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8 Appendices
8.1 Example A/D-D/A Usage
The following examples of A/D-D/A chips have been included to show connections necessary for interfacing to a number of
popular chips.
5 V
3.3 V
SERIAL PORT ENABLE (HIGH)
16.384 MHz
U1
AMBE
-2000
27
33
37
29
31
41
CODEC_RX_CLK
CODEC_TX_CLK
CODEC_TX_STRB
CODEC_RX_STRB
CODEC_RX_DATA
CODEC_TX_DATA
U2
AD73311
14
17
18
16
19
20
15
3
9
12
SCLK
SDOFS
SDIFS
SDO
SDI
SE
MCLK
AVDD1
AVDD2
DVDD
REFERENCE DATA
The AMBE-2000™ sends the following configuration sequence to the AD73311 when CODEC_SEL [1-0]=01b:
0x8113, // write 13 to CRB of AD73311, MCD=1 (DMCLK=MCLK/2),SCD=0(SCLK=DMCLK/8)
0x82f9, // write f9 to CRC of AD73311, 5VEN, REFOUT, all Power ON
0x8300, // write 0 to CRD of AD73311
0x8001 // write 1 to CRA of AD73311 (Enters Data Mode)