SAA2501 Datasheet, PDF (19/52 Pages) NXP Semiconductors – Digital Audio Broadcast DAB decoder

Philips Semiconductors
Digital Audio Broadcast (DAB) decoder
Preliminary specification
SAA2501
handbook, full pagewidth
transferred
input frame bits
n
slope: CDSCL
frequency
(3)
MGB499
(1)
B
B
slope: effective
input bit rate
(2)
B
B0
t
time
(1) The actual transferring characteristics of all subsequent frames are restricted to this area.
(2) Effective transferring characteristic (example).
(3) Actual transferring characteristic of the first frame (example).
Fig.11 Slave input data transferring for subsequent frames, referenced to the first frame.
Note that the actual transferring characteristics of all
frames must also remain inside the shaded area of Fig.11.
7.18 The sub-band filter interface
As mentioned earlier, decoded signals in the sub-band
domain (before synthesis filtering) are available externally
for processing. The associated interface has an I²S-like
format (see Fig.12).
The filter data interface uses 6 signals as shown in
Table 10.
January 1995
19