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NE570 PDF даташит

Спецификация NE570 изготовлена ​​​​«Philipss» и имеет функцию, называемую «Telephone trunk comandor».

Детали детали

Номер произв NE570
Описание Telephone trunk comandor
Производители Philipss
логотип Philipss логотип 

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NE570 Даташит, Описание, Даташиты
INTEGRATED CIRCUITS
NE570
Compandor
Product data
Supersedes data of 1990 Jun 07
Philips
Semiconductors
2003 Apr 03









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NE570 Даташит, Описание, Даташиты
Philips Semiconductors
Compandor
Product data
NE570
GENERAL DESCRIPTION
The NE570 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 NE570 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 IC
Temperature compensated
Greater than 110 dB dynamic range
Operates down to 6 VDC
System levels adjustable with external components
Distortion may be trimmed out
APPLICATIONS
Cellular radio
Telephone trunk comandor
High level limiter
Low level expandor—noise gate
Dynamic noise reduction systems
Voltage-controlled amplifier
Dynamic filters
PIN CONFIGURATION
RECT_CAP_1
RECT_IN_1
G_CELL_IN_1
GND
INV_IN_1
RES_R3_1
OUTPUT_1
THD_TRIM_1
1
2
3
4
5
6
7
8
16 RECT_CAP_2
15 RECT_IN_2
14 G_CELL_IN_2
13
NE570D
12
VCC
INV_IN_2
11 RES_R3_2
10 OUTPUT_2
9 THD_TRIM_2
TOP VIEW
SR02503
Figure 1. Pin configuration.
ORDERING INFORMATION
Type number Package
Name
Description
NE570D
SO16
plastic small outline package; 16 leads; body width 7.5 mm
Version
SOT162-1
Temperature range
0 °C to +70 °C
BLOCK DIAGRAM
G CELL IN
RECT IN
THD TRIM
R2 20 k
VARIABLE
GAIN
R1 10 k
RECTIFIER
R3 INVERTER IN
R3
20 k
R4
30 k
VREF
1.8 V
+
RECT CAP
Figure 2. Block diagram
OUTPUT
SR02507
2003 Apr 03
2









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NE570 Даташит, Описание, Даташиты
Philips Semiconductors
Compandor
Product data
NE570
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
VCC
Tamb
PD
Maximum operating voltage
Operating ambient temperature range
Power dissipation
RATING
24
0 to +70
400
UNITS
VDC
°C
mW
AC ELECTRICAL CHARACTERISTICS
VCC = +6 V, Tamb = 25 °C; unless otherwise stated.
SYMBOL
PARAMETER
TEST CONDITIONS
VCC
ICC
IOUT
SR
Supply voltage
Supply current
Output current capability
Output slew rate
Gain cell distortion 2
Resistor tolerance
Internal reference voltage
Output DC shift 3
Expandor output noise
Unity gain level5
Gain change 2, 4
Reference drift 4
Resistor drift 4
Tracking error (measured relative to value
at unity gain) equals [VO – VO (unity gain)]
dB – V2 dBm
Channel separation
NOTES:
1. Input to V1 and V2 grounded.
2. Measured at 0 dBm, 1 kHz.
3. Expandor AC input change from no signal to 0 dBm.
4. Relative to value at Tamb = 25 °C.
5. 0 dB = 775 mVRMS.
No signal
Untrimmed
Trimmed
Untrimmed
No signal, 15 Hz to 20 kHz 1
Tamb = 0 °C to +70 °C
Tamb = 0 °C to +70 °C
Tamb = 0 °C to +70 °C
Rectifier input
V2 = +6 dBm, V1 = 0 dB
V2 = -30dBm, V1 = 0dB
MIN
6
±20
1.7
–1
LIMITS
TYP
3.2
±0.5
0.3
0.05
±5
1.8
±20
20
0
±0.1
±5
+1, –0
MAX
24
4.8
1.0
±15
1.9
±100
45
+1
±0.2
±10
UNITS
V
mA
mA
V/µs
%
%
%
V
mV
µV
dBm
dB
mV
%
±0.2
+0.2
60
–0.5, +1
dB
dB
dB
2003 Apr 03
3










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