SA577 [NXP]
Unity gain level programmable power compandor; 单位增益级可编程电源扩型号: | SA577 |
厂家: | NXP |
描述: | Unity gain level programmable power compandor |
文件: | 总7页 (文件大小:63K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
RF COMMUNICATIONS PRODUCTS
SA577
Unity gain level programmable power
compandor
Product specification
Replaces data of December 15, 1993
1997 Nov 07
IC17 Data Handbook
Philip s Se m ic ond uc tors
Philips Semiconductors
Product specification
Unity gain level programmable low power compandor
SA577
DESCRIPTION
PIN CONFIGURATION
The SA577 is a unity gain level programmable compandor designed
for low power applications. The SA577 is internally configured as an
expandor and a compressor to minimize external component count.
D Package
1
2
3
4
5
6
7
14
13
12
11
10
9
GCELL
RECT
EXP
V
IN
IN
CC
COMP
COMP
COMP
CAP2
IN
CAP
OUT
FEATURES
CAP1
EXP
• Operating voltage range: 1.8V to 7V
V
RECT
REF
IN
• Low power consumption (1.4mA @ 3.6V)
GCELL
I
IN
REF
8
GND
• 0dB level programmable (10mV
• Over 90dB of dynamic range
to 1.0V
)
RMS
COMP
RMS
OUT
SR00716
Figure 1. Pin Configuration
• Wide input/output swing capability (rail-to-rail)
• Low external component count
• SA577 meets cellular radio specifications
• ESD hardened
APPLICATIONS
• High performance portable communications
• Cellular radio
• Cordless telephone
• Consumer audio
• Wireless microphones
• Modems
• Electric organs
• Hearing aids
• Automatic level control (ALC)
ORDERING INFORMATION
DESCRIPTION
TEMPERATURE RANGE
ORDER CODE
SA577D
DWG #
–40 to +85°C
14-Pin Plastic Small Outline (SO)
SOT108-1
ABSOLUTE MAXIMUM RATINGS
RATING
SYMBOL
PARAMETER
UNITS
SA577
8
V
CC
Supply voltage
V
°C
T
A
Operating ambient temperature range
Storage temperature range
–40 to +85
T
STG
–65 to +150
125
°C
θ
Thermal impedance
SO
°C/W
JA
2
1997 Nov 07
853-1535 18666
Philips Semiconductors
Product specification
Unity gain level programmable low power compandor
SA577
ELECTRICAL CHARACTERISTICS
T = 25°C, V = 3.6VDC, compandor 0dB level = –20dBV = 100mV
, output load R = 10kΩ, Freq = 1kHz, unless otherwise specified.
A
CC
RMS
L
R1, R2 and R3 are 1% resistors.
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
SA577
TYP
3.6
UNITS
MIN
MAX
1
V
CC
Supply voltage
2
7
V
mA
V
No signal
R = 100kΩ
2
I
Supply current
1.4
1.8
2
CC
2
V
REF
Reference voltage
V
CC
= 3.6V
1.7
10
1.9
R
Summing amp output load
Total harmonic distortion
kΩ
L
THD
1kHz, 0dB, BW = 3.5kHz
0.25
10
1.5
25
%
E
NO
Expandor output noise voltage
Unity gain level
BW = 20kHz, R = 0Ω
µV
S
0dB
0dB at 1kHz
R1 = R3 = 18.7kΩ, R2 = 24.3kΩ
R1 = R3 = 22.6kΩ, R2 = 100kΩ
R1 = R3 = 7.15kΩ, R2 = 100kΩ
R1 = R3 = 1.33kΩ, R2 = 200kΩ
No signal
–1.5
0.18
0
1.5
dB
3
Programmable range
–10
–20
–40
1
dBV
V
OS
Output voltage offset
–150
–100
–1.0
150
100
1.0
mV
mV
dB
Expandor output DC shift
Tracking error relative to 0dB output
Crosstalk, COMP to EXP
Output swing low
No signal to 0dB
7
-20dB expandor
0.3
–80
0.2
1kHz, 0dB, C
= 10µF
–65
dB
REF
V
O
V
Output swing high
V
CC
– 0.2
NOTE:
1. Operation down to V = 1.8V is possible, see application note AN1762.
CC
2. Reference voltage, V
, is typically at 1/2 V
.
REF
CC
3. Unity gain level can be adjusted CONTINUOUSLY between –40dBV = 10mV
and 0dBV = 1.0V
. For details see application note
RMS
RMS
AN1762.
3
1997 Nov 07
Philips Semiconductors
Product specification
Unity gain level programmable low power compandor
SA577
BLOCK DIAGRAM and TEST AND APPLICATION CIRCUIT
10k
GAINCELL
C1
EXP
10k
IN
+
V
14
13
12
11
10
9
CC
∆G
1
2
3
4
5
6
7
Σ
10µF
R1*
10k
RECTIFIER
COMP
CAP2
5k
C8
+
RECT
2.2µF
IN
C7
+
30k
30k
10k
EXP
CAP
2.2µF
+
COMP
IN
C2
10µF
EXPANDOR
C3
+
COMP
CAP1
+
EXP
C6
Σ
OUT
10µF
2.2µF
RECTIFIER
10k
C4
V
8.6k
REF
+
RECT
IN
10µF
R3*
V
REF
10k
BANDGAP
GCELL
IN
∆G
GAINCELL
I
V
REF
COMPRESSOR
CC
R2*
+
C5
10µF
GND
+
8
COMP
OUT
C9
10µF
GND
*R1, R2 and R3 are 1% resistors.
SR00717
Figure 2. Block Diagram and Test and Application Circuit
4
1997 Nov 07
Philips Semiconductors
Product specification
Unity gain level programmable low power compandor
SA577
TYPICAL PERFORMANCE CHARACTERISTICS
V
CC
= 3.6V, T = 25°C, R1=R3=7.15kΩ, R2=100kΩ, 0dB level = 100mV, Freq. = 1kHz
A
SUPPLY CURRENT vs TEMPERATURE
SUPPLY CURRENT vs SUPPLY VOLTAGE
1.6
1.8
1.5
1.6
1.4
1.4
1.3
1.2
1.2
1
1.1
0.8
1
0.6
-40
-40
-40
-20
0
20
40
60
80
100
100
100
1
2
3
4
5
6
7
8
SUPPLY VOLTAGE (V)
AMBIENT TEMPERATURE (°C)
UNITY GAIN ERROR vs SUPPLY VOLTAGE
UNITY GAIN ERROR vs TEMPERATURE
0.6
0.4
0.2
0
0.6
0.4
0.2
0
NOTE: UNITY GAIN ERROR MAY BE
SET TO 0 AT ANY V
BY
CC
ADJUSTING THE VALUE OF R1, R3
EXPANDOR
EXPANDOR
COMPRESSOR
COMPRESSOR
-0.2
-0.4
-0.6
-0.2
-0.4
-0.6
2
3
4
5
6
7
-20
0
20
40
60
80
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
TRACKING ERROR vs INPUT LEVEL
THD vs TEMPERATURE
0.5
0.4
0.3
0.2
0.1
1
0.5
0
NOTE: RELATIVE
TO UNITY GAIN
COMPRESSOR
EXPANDOR
EXPANDOR
COMPRESSOR
-0.5
-1
2
3
4
5
6
-20
0
20
40
60
80
SR00715
INPUT LEVEL (dB)
TEMPERATURE (°C)
Figure 3. Typical Performance Characteristics
5
1997 Nov 07
Philips Semiconductors
Product specification
Unity gain level programmable power compandor
SA577
SO14: plastic small outline package; 14 leads; body width 3.9 mm
SOT108-1
6
1997 Nov 07
Philips Semiconductors
Product specification
Unity gain level programmable power compandor
SA577
DEFINITIONS
Data Sheet Identification
Product Status
Definition
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
Objective Specification
Formative or in Design
This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips
Semiconductors reserves the right to make changes at any time without notice in order to improve design
and supply the best possible product.
Preliminary Specification
Product Specification
Preproduction Product
Full Production
This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes
at any time without notice, in order to improve design and supply the best possible product.
Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products,
including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright,
or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes
only. PhilipsSemiconductorsmakesnorepresentationorwarrantythatsuchapplicationswillbesuitableforthespecifiedusewithoutfurthertesting
or modification.
LIFE SUPPORT APPLICATIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
orsystemswheremalfunctionofaPhilipsSemiconductorsandPhilipsElectronicsNorthAmericaCorporationProductcanreasonablybeexpected
to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips
Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully
indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Copyright Philips Electronics North America Corporation 1997
All rights reserved. Printed in U.S.A.
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Philips
Semiconductors
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