Philips Semiconductors

Product specification

SA5752

Audio processor – companding, VOX and amplifier section

1997 Nov 07

10

TYPICAL PERFORMANCE CHARACTERISTICS

EXPANDOR

COMPRESSOR

THD vs Temperature for 3V Supply

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0.0

–50 –40 –30 –20 –10 0

10

20

30

40

50

60

70

80

90

100

TEMPERATURE (

°C)

4.00

3.75

3.50

3.25

3.00

2.75

2.50

2.25

2.00

–50 –40 –30 –20 –10 0

10

20

30

40

50

60

70

80

90

100

TEMPERATURE (

°C)

VCC = 3V

Supply Current vs Temperature and Supply Voltage

Power Down Supply Current vs

Temperature and Supply Voltage

TEMPERATURE (

°C)

0.40

0.35

0.30

0.25

0.20

0.15

0.10

0.05

0.00

–50 –40 –30 –20 –10 0

10

20

30

40

50

60

70

80

90

100

EXPANDOR

COMPRESSOR

Compandor Tracking Error vs Input Level

1.0

0.8

0.6

0.4

0.2

0.0

–0.2

–0.4

–0.6

–0.8

–1.0

–45 –40 –35 –30 –25 –20 –15 –10 –5

0

510

15

20

25

INPUT LEVEL (dB)

Unity Gain Error vs Temperature

TEMPERATURE (

°C)

–50 –40 –30 –20 –10 0

10

20

30

40

50

60

70

80

90

100

SUPPLY VOLTAGE (V)

1.5

1.25

1.00

0.75

0.50

0.25

0.00

–0.25

–0.50

–0.75

–1.00

–1.25

–1.50

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

Unity Gain Error vs Supply Voltage

VCC = 5.5V

VCC = 2.7V

VCC = 2V

EXPANDOR

COMPRESSOR

COMPRESSOR

EXPANDOR

VCC = 3V

VCC = 5.5V

VCC = 2.7V

VCC = 2V

1.5

1.25

1.00

0.75

0.50

0.25

0.00

–0.25

–0.50

–0.75

–1.00

–1.25

–1.50

SR00664

Figure 8. Typical Performance Characteristics