參數(shù)資料
型號： SA5752DK
廠商： NXP SEMICONDUCTORS
元件分類： 運動控制電子
英文描述： Audio processor - companding, VOX and amplifier section
中文描述： COMPANDER, PDSO20
封裝： 4.40 MM, PLASTIC, SOT-266-1, SSOP-20
文件頁數(shù)： 4/13頁
文件大?。?/td> 114K
代理商： SA5752DK
Philips Semiconductors
Product specification
SA5752
Audio processor – companding, VOX and amplifier section
1997 Nov 07
4
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
RATING
UNIT
V
CC
V
IN
T
STG
Power supply voltage range
-0.3 to 6
V
Voltage applied to any other pin
-0.3 to (V
CC
+0.3)
-65 to +150
V
Storage temperature
o
C
°
C
T
A
Ambient operating temperature
-40 to +85
DC ELECTRICAL CHARACTERISTICS
T
A
= 25
o
C, V
CC
= +3.0V, 0dB = 77.5mV
RMS
. See test circuit, Figure 6.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
UNIT
MIN
2.7
4
TYP
MAX
V
CC
Supply voltage
3.0
5.5
V
I
CC
Supply current
No signal
Power down mode
3.1
125
4.0
mA
μ
A
Z
L
Load impedance
pins NCAN
OUT
, EXP
OUT
COMP
OUT1
Input impedance
COMP
IN
, MIC
IN
EXP
IN2
Noise cancellation current
50
k
k
10
Z
IN
40
50
60
k
k
μ
A
2.0
Pin 6
25
V
OS
DC offset NCAN
OUT3
-50
–3.0
50
mV
NOTES:
1. Compressor is tested in production with 50k
load.
2. Not tested in production.
3. Offset values are identical for both gain states of noise reduction circuit.
4. Operational down to V
CC
= 2V.
AC ELECTRICAL CHARACTERISTICS
T
A
= 25
o
C, V
CC
= +3.0V, 0dB level = 77.5mV
RMS
. See test circuit, Figure 6.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
TYP
UNIT
MIN
0
-1.0
39.0
MAX
40
1.0
41.0
Preamplifier gain range
Preamplifier voltage gain 0dB
Preamplifier voltage gain 40dB
Pin 2 open
Pin 2 AC ground
0
40
dB
dB
dB
Preamplifier noise density
Pin 2 AC grounded
RS = 50k
unweighted 20Hz-20kHz
7
nV/
√
Hz
weighted CCIR
DIN45405 20-20kHz
8
10
nV/
√
Hz
dB
Switch amplifier gain
9
11
Compandor 1kHz, all tests
1
COMP
OUT
COMP
OUT
COMP
OUT
COMP
OUT
COMP
OUT
EXP
OUT
EXP
OUT
EXP
OUT
Compressor error at -21dB output level
Compressor error at -10dB output level
Compressor error at 0dB output level
Compressor error at +5dB output level
Compressor error at +10dB output level
Expandor error at -42dB output level
Expandor error at -21dB output level
Expandor error at -10dB output level
Input level = -42dB
Input level = -20dB
Input level = 0dB
Input level = +10dB
Input level = +20dB
Input level = -21dB
Input level = -10.5dB
Input level = -5dB
–1.0
-1.0
-1.5
-1.0
-1.0
–1.0
-1.0
-1.0
–0.16
–0.11
+0.1
+0.04
+0.02
–0.12
+0.1
+0.03
1.0
1.0
1.5
1.0
1.0
1.0
1.0
1.0
dB
dB
dB
dB
dB
dB
dB
dB
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