SA572 Philips, SA572 Datasheet - Page 9

• Manufacturer Part Number: SA572
• Description: Programmable analog compandor
• Manufacturer: Philips

Philips Semiconductors
Basic Compandor System
The above basic compressor and expandor can be applied to
systems such as tape/disc noise reduction, digital audio, bucket
brigade delay lines. Additional system design techniques such as
1998 Nov 03
Programmable analog compandor
100 V
3.0V
547.6MV
400MV
100MV
10MV
1MV
10 V
V
RMS
COMPRESSION
IN
1
2
Figure 9. SA572 System Level
INPUT TO G
AND RECT
9
bandlimiting, band splitting, pre-emphasis, de-emphasis and
equalization are easy to incorporate. The IC is a versatile functional
block to achieve a high performance audio system. Figure 9 shows
the system level diagram for reference.
EXPANDOR
2
OUT
REL LEVEL
+29.54
+14.77
+12.0
–20
–40
–60
–80
0.0
dB
ABS LEVEL
+11.76
–17.78
–37.78
–57.78
–77.78
–97.78
–3.00
–5.78
Product specification
dBM
SA572
SR00702