NE571 PDF даташит
Спецификация NE571 изготовлена «Philipss» и имеет функцию, называемую «Compandor». |
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Детали детали
Номер произв | NE571 |
Описание | Compandor |
Производители | Philipss |
логотип |
11 Pages
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INTEGRATED CIRCUITS
SA571
Compandor
Product specification
IC17 Data Handbook
Philips
Semiconductors
1997 Aug 14
No Preview Available ! |
Philips Semiconductors
Compandor
Product specification
SA571
DESCRIPTION
The SA571 is a versatile low cost dual gain control circuit in which
either channel may be used as a dynamic range compressor or
expandor. Each channel has a full-wave rectifier to detect the
average value of the signal, a linerarized temperature-compensated
variable gain cell, and an operational amplifier.
The SA571 is well suited for use in cellular radio and radio
communications systems, modems, telephone, and satellite
broadcast/receive audio systems.
FEATURES
• Complete compressor and expandor in one IChip
• Temperature compensated
• Greater than 110dB dynamic range
• Operates down to 6VDC
• System levels adjustable with external components
• Distortion may be trimmed out
• Dynamic noise reduction systems
• Voltage-controlled amplifier
ORDERING INFORMATION
DESCRIPTION
16-Pin Plastic Small Outline Large (SOL)
16-Pin Plastic Dual In-Line Package (DIP)
PIN CONFIGURATION
D, and N Packages1
RECT CAP 1 1
RECT IN 1 2
AG CELL IN 1 3
GND 4
INV. IN 1 5
RES. R3 1 6
OUTPUT 1 7
THD TRIM 1 8
16 RECT CAP 2
15 RECT IN 2
14 AG CELL IN 2
13 VCC
12 INV. IN 2
11 RES. R3 2
10 OUTPUT 2
9 THD TRIM 2
TOP VIEW
NOTE:
1. SOL - Released in Large SO Package Only.
Figure 1. Pin Configuration
SR00675
APPLICATIONS
• Cellular radio
• High level limiter
• Low level expandor—noise gate
• Dynamic filters
• CD Player
TEMPERATURE RANGE
-40 to +85°C
-40 to +85°C
ORDER CODE
SA571D
SA571N
DWG #
SOT162-1
SOT38-4
BLOCK DIAGRAM
∆G IN
RECT IN
THD TRIM
R2 20k
VARIABLE
GAIN
R1 10k
RECTIFIER
R3 INVERTER IN
R3 20k
–
VREF
R4 30k 1.8V
+
RECT CAP
Figure 2. Block Diagram
OUTPUT
SR00676
1997 Aug 14
2 853-0812 18285
No Preview Available ! |
Philips Semiconductors
Compandor
Product specification
SA571
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
VCC
Maximum operating voltage
571
TA
Operating ambient temperature range
SA
PD Power dissipation
RATING
18
-40 to +85
400
UNITS
VDC
°C
mW
AC ELECTRICAL CHARACTERISTICS
VCC = +6V, TA = 25°C; unless otherwise stated.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
VCC
ICC
IOUT
SR
Supply voltage
Supply current
Output current capability
Output slew rate
No signal
6
±20
Gain cell distortion2
Untrimmed
Trimmed
Resistor tolerance
Internal reference voltage
Output DC shift3
Expandor output noise
Untrimmed
No signal, 15Hz-20kHz1
1.65
Unity gain level6
Gain change2, 4
Reference drift4
Resistor drift4
1kHz
-1.5
Tracking error (measured relative to
value at unity gain) equals [VO - VO
(unity gain)] dB - V2dBm
Channel separation
Rectifier input,
V2 = +6dBm, V1 = 0dB
V2 = -30dBm, V1 = 0dB
NOTES:
1. Input to V1 and V2 grounded.
2. Measured at 0dBm, 1kHz.
3. Expandor AC input change from no signal to 0dBm.
4. Relative to value at TA = 25°C.
5. Electrical characteristics for the SA571 only are specified over -40 to +85°C temperature range.
6. 0dBm = 775mVRMS.
LIMITS
SA5715
TYP
3.2
±.5
0.5
0.1
±5
1.8
±30
20
0
±0.1
+2, -25
+8, -0
+0.2
+0.2
60
MAX
18
4.8
2.0
±15
1.95
±150
60
+1.5
+20, -50
-1, +1.5
UNITS
V
mA
mA
V/µs
%
%
V
mV
µV
dBm
dB
mV
%
dB
dB
1997 Aug 14
3
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