RS_Telecom IP
RM0082
780/844
Doc ID 018672 Rev 1
Figure 100. DAC application
Figure 101. DAC used with TDM at 8 kHz
34.4.10 Camera
interface
Camera Interface which is intended to get the data from a sensor in parallel mode (8 to 14
bits) and then store a full line in memory. Main features of the Camera Interface are:-
●
It is an AHB slave port.
●
8 bit/10/12/14 bit parallel interface
●
Embedded/External Synchronization for Line and Frame
●
Crop Feature
8 kHz input
16 bit data
64kHz output
32 bits
8*Oversampling
(8th order filter)
2048kHz ouput
32 interpolation
(optional)
Integration
(16 bit CPT)
Integration
(16 bit CPT)
0.5
0.5
+/-
+/-
Order 2 noise shaper
Sign bit
In this figure, 8 kHz input data is first over sampled by the
processor to 64 kHz. Then the noise shaper will lead to an
output signal of 2048 kHz by a 32* over sampling. Data at the
input of the noise shaper can be optionally interpolated
8 kHz input
16 bit data
8kHz output
32 bits
(Shift right)
2048kHz ouput
256 interpolation
(optional)
Integration
(16 bit CPT)
Integration
(16 bit CPT)
0.5
0.5
+/-
+/-
Order 2 noise shaper
Sign bit
In this figure, 8 kHz input data is converted to 32 bits by the
processor. The noise shaper leads to an output signal of 2048
kHz by a 256* over sampling.