SA577 Philips, SA577 Datasheet - Page 3

• Manufacturer Part Number: SA577
• Description: Unity gain level programmable power compandor
• Manufacturer: Philips

1. Operation down to V
2. Reference voltage, V
3. Unity gain level can be adjusted CONTINUOUSLY between –40dBV = 10mV
Philips Semiconductors
ELECTRICAL CHARACTERISTICS
T
R1, R2 and R3 are 1% resistors.
NOTE:
1997 Nov 07
SYMBOL
A
Unity gain level programmable low power compandor
= 25 C, V
V
AN1762.
THD
V
E
V
0dB
I
R
V
V
CC
REF
CC
NO
OS
O
O
L
CC
Supply voltage
Supply current
Reference voltage
Summing amp output load
Total harmonic distortion
Expandor output noise voltage
Unity gain level
Programmable range
Output voltage offset
Expandor output DC shift
Tracking error relative to 0dB output
Crosstalk, COMP to EXP
Output swing low
Output swing high
= 3.6VDC, compandor 0dB level = –20dBV = 100mV
CC
REF
PARAMETER
= 1.8V is possible, see application note AN1762.
1
, is typically at 1/2 V
2
3
CC
.
R1 = R3 = 18.7k , R2 = 24.3k
R1 = R3 = 22.6k , R2 = 100k
R1 = R3 = 7.15k , R2 = 100k
R1 = R3 = 1.33k , R2 = 200k
1kHz, 0dB, BW = 3.5kHz
1kHz, 0dB, C
BW = 20kHz, R
TEST CONDITIONS
No signal to 0dB
-20dB expandor
0dB at 1kHz
R
V
No signal
No signal
2
CC
RMS
= 100k
3
= 3.6V
, output load R
REF
S
= 10 F
= 0
RMS
and 0dBV = 1.0V
L
= 10k , Freq = 1kHz, unless otherwise specified.
–150
–100
–1.5
–1.0
MIN
1.7
10
2
RMS
. For details see application note
V
LIMITS
SA577
CC
TYP
0.25
0.18
–10
–20
–40
–80
3.6
1.4
1.8
0.3
0.2
10
0
1
7
– 0.2
Product specification
MAX
150
100
–65
1.9
1.5
1.5
1.0
25
7
2
SA577
UNITS
dBV
dBV
mA
mV
mV
k
dB
dB
dB
%
V
V
V
V
V