Digital Voice Systems AMBE-3000 Especificações descarregar pdf (Página 66)

AMBE-3000F™ Vocoder Chip Users Manual

Version 3.4, April, 2014

O Management

Figure 39 AMBE-3000F™ Vocoder Chip and TLV320AIC14 Interface Block

Diagram

The control registers in the TLV320AIC14 codec must be initialized for proper operation. The recommended procedure is to

initialize the TLV320AIC14 by writing data to 5 control registers via packet from the AMBE-3000F™ Vocoder Chip.

Control Register Configuration Data Notes:

1 0x41 set 16 bit DAC mode, set continuous data transfer mode

2 0xA0 set TURBO=1 (SCLK=MCLK/P), keep I2C addr=4

4 0x83 set M=3

5C 0xB8 sidetone=MUTE

6 0x02 set input MICIN self biased at 1.35 V

Table 27 Control Register Value for the TLV320AIC14

Various configuration data can be used to control the operation of the TLV320AIC14 codec (see its data sheet for more

information), however for reference the AMBE-3000F™ Vocoder Chip has been tested with the TLV320AIC14 configured

using the register values shown in Table 27 Control Register Value for the TLV320AIC14. A reset to the TLV320AIC14

dec will reset all of the internal registers. As a result, the TLV320AIC14 must be reconfigured following a reset.

5.11.2 The Texas Instruments PCM3500 General purpose codec

Another example of a low cost general purpose codec is the Texas Instruments. This example provides information on

interfacing the PCM35000 to the AMBE-3000F™ Vocoder chip’s McBSP interface.

(Subject to Change) Page 56

DVSI CONFIDENTIAL PROPRIETARY

1 2 ... 61 62 63 64 65 66 67 68 69 70 71 ... 110 111

Sem comentários

Digital Voice Systems AMBE-3000 Especificações Página 66