Digital Voice Systems AMBE-2000 - Page 56

AMBE-2000™ Vocoder Chip Users Manual
Version 4.92, June, 08
DVSI Confidential Proprietary, Subject to Change Page 56
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Register Address
(D10-D8)
Configuration Data
(D7-D0)
Notes:
CRB
0x1
0x13
MCD = 1 Sets DMCLK=MCLK/2
SCD = 0 Sets SCLK=DMCLK/8
CRC
0x2
0x79
D6 = 1 Reference Out Enabled
D5 = 1 Reference Power On
D4 = 1 DAC Power On
D3 = 1 ADC Power On
D0 = 1 Power On
CRD
0x3
0x00 Gain set to 0
CRA
0x0
0x01 D0 = 1 Puts CODEC in Data Mode
Table 2: Alternate Configuration Data for the AD73311
AD73311L codec (3 volt supply)
The Analog Devices AD73311L is a low power 3 volt version of the AD73311. It is possible to use this part with the AMBE-
2000™ or AMBE-2020™ vocoder chip utilizing the method described above for sending alternate configuration words to the
AD73311 CODEC. Table 3 lists alternate control words for configuring the AD73311L for use with the AMBE-2000™ or
AMBE-2020™.
Register Address
(D10-D8)
Configuration Data
(D7-D0)
Notes:
CRB
0x1
0x13
MCD = 1 Sets DMCLK=MCLK/2
SCD = 0 Sets SCLK=DMCLK/8
CRC
0x2
0x79
D6 = 1 Reference Out Enabled
D5 = 1 Reference Power On
D4 = 1 DAC Power On
D3 = 1 ADC Power On
D0 = 1 Power On
CRD
0x3
0x00 Gain set to 0
CRA
0x0
0x01 D0 = 1 Puts CODEC in Data Mode
Table 3: Configuration Data for the AD73311L
Additional Reference Material
AMBE-2000™ vocoder chip Users Manual
http://www.dvsinc.com/literature.htm
Application Report – Understanding Data Converters:
http://www-s.ti.com/sc/psheets/slaa013/slaa013.pdf