參數(shù)資料
型號： SA576N
廠商： NXP SEMICONDUCTORS
元件分類： 運動控制電子
英文描述： Low power compandor
中文描述： COMPANDER, 0.02 MHz BAND WIDTH, PDIP14
封裝： 0.300 INCH, PLASTIC, MO-001AA, SOT27-1, DIP-14
文件頁數(shù)： 3/7頁
文件大?。?/td> 77K
代理商： SA576N
Philips Semiconductors
Product specification
SA576
Low power compandor
1997 Aug 14
10–3
BLOCK DIAGRAM and TEST AND APPLICATION CIRCUIT
1
2
3
4
5
6
7
8
9
10
14
13
12
11
V
REF
V
CC
GND
COMP
IN
BANDGAP
I
REF
Σ
Σ
G
G
EXPANDOR
COMPRESSOR
GAINCELL
GAINCELL
RECTIFIER
V
CC
GND
COMP
CAP2
COMP
CAP1
GCELL
IN
COMP
OUT
RECT
IN
V
REF
EXP
OUT
EXP
CAP
+
RECT
IN
EXP
IN
RECTIFIER
C3
C1
R1*
C2
R2*
C4
10
μ
F
2.2
μ
F
10
μ
F
10
μ
F
C8
2.2
μ
F
C7
C6
2.2
μ
F
R3*
C5
+
+
+
+
+
+
10
μ
F
10
μ
F
C9
10
μ
F
+
+
*R1, R2 and R3 are 1% resistors.
30k
30k
10k
10k
10k
10k
10k
5k
10k
8.6k
SR00714
Figure 2. Block Diagram and Test and Application Circuit
ELECTRICAL CHARACTERISTICS
T
A
= 25
°
C, V
CC
= 3.6VDC, compandor 0dB level = –20dBV = 100mV
RMS
, output load R
L
= 10k
, Freq = 1kHz, unless otherwise specified.
R1, R2 and R3 are 1% resistors.
LIMITS
SA576
TYP
3.6
SYMBOL
PARAMETER
TEST CONDITIONS
UNITS
MIN
2
MAX
7
V
CC
Supply voltage
1
V
I
CC
Supply current
No signal
R
2
= 100k
V
CC
= 3.6V
1.4
3
mA
V
REF
R
L
THD
E
NO
0dB
V
OS
Reference voltage
2
Summing amp output load
Total harmonic distortion
Expandor output noise voltage
Unity gain level
Output voltage offset
Expandor output DC shift
Tracking error relative to 0dB output
Crosstalk, COMP to EXP
Output swing low
Output swing high
1.8
V
k
%
μ
V
dB
mV
mV
dB
dB
10
1kHz, 0dB, BW = 3.5kHz
BW = 20kHz, R
S
= 0
0dB at 1kHz
No signal
No signal to 0dB
-20dB expandor
1kHz, 0dB, C
REF
= 10
μ
F
0.25
10
0.18
1
7
0.3
–80
0.2
1.5
30
1.5
150
100
1.0
–1.5
–150
–100
–1.0
V
O
V
V
CC
– 0.2
NOTE:
1. Operation down to V
CC
= 1.8V is possible, see description on front page of SA576 data sheet.
2. Reference voltage, V
REF
, is typically at 1/2 V
CC
.
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