SA578 Datasheet, PDF (5/7 Pages) NXP Semiconductors – Unity gain level programmable low power compandor

Philips Semiconductors
Unity gain level programmable low power compandor
Product specification
SA578
TYPICAL PERFORMANCE CHARACTERISTICS
V_CC = 3.6V, T_A = 25°C, R1=R3=7.15kΩ, R2=100kΩ, 0dB level = 100mV, Freq. = 1kHz
SUPPLY CURRENT vs SUPPLY VOLTAGE
SUPPLY CURRENT vs TEMPERATURE
1.6
1.8
1.5
1.6
1.4
1.4
1.3
1.2
1.2
1
1.1
0.8
0.6
1
2
3
4
5
6
7
8
SUPPLY VOLTAGE (V)
UNITY GAIN ERROR vs SUPPLY VOLTAGE
0.6
NOTE: UNITY GAIN ERROR MAY BE
SET TO 0 AT ANY V_CC BY
ADJUSTING THE VALUE OF R1, R3
0.4
EXPANDOR
0.2
1
-40 -20
0
20
40
60
80 100
AMBIENT TEMPERATURE (°C)
UNITY GAIN ERROR vs TEMPERATURE
0.6
0.4
EXPANDOR
0.2
0
COMPRESSOR
-0.2
0
COMPRESSOR
-0.2
-0.4
-0.4
-0.6
2
1
3
4
5
6
7
SUPPLY VOLTAGE (V)
TRACKING ERROR vs INPUT LEVEL
NOTE: RELATIVE
TO UNITY GAIN
0.5
EXPANDOR
-0.6
-40 -20
0
20
40
60
80 100
TEMPERATURE (°C)
THD vs TEMPERATURE
0.5
COMPRESSOR
0.4
0
COMPRESSOR
-0.5
0.3
EXPANDOR
0.2
-1
2
1997 Nov 07
0.1
3
4
5
6
INPUT LEVEL (dB)
-40 -20
0
20
40
60
TEMPERATURE (°C)
Figure 3. Typical Performance Characteristics
80 100
SR00715
5