UNISONIC TECHNOLOGIES CO., LTD
USA575A
Preliminary
LINEAR INTEGRATED CIRCUIT
LOW VOLTAGE COMPANDOR
DESCRIPTION
The UTC
USA575A
is a precision dual gain control circuit
designed for low voltage applications. The UTC
USA575’s
channel 1 is an expandor, while channel 2 can be configured
either for expandor, compressor, or automatic level controller
(ALC) application.
SSOP-20
FEATURES
TSSOP-20
* Operating voltage range from 3V to 7V
* Reference voltage of 100mV
RMS
=0dB
* 600Ω drive capability
* One dedicated summing op amp per channel and two extra
uncommitted op amps
* Single or split supply operation
* Wide input/output swing capability
ORDERING INFORMATION
Ordering Number
Lead Free
USA575AL-R20-R
USA575AL-P20-R
Halogen Free
USA575AG-R20-R
USA575AG-P20-R
Package
SSOP-20
TSSOP-20
Packing
Tape Reel
Tape Reel
USA575AG-R20-R
(1)Packing Type
(2)Package Type
(3)Green Package
(1) R: Tape Reel
(2) R20: SSOP-20, P20: TSSOP-20
(3) G: Halogen Free and Lead Free, L: Lead Free
MARKING
Date Code
L: Lead Free
G: Halogen Free
Lot Code
20 19 18 17 16 15 14 13 12 11
UTC
USA575A
1
2
3
4
5
6
7
8
9
10
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Copyright © 2020 Unisonic Technologies Co., Ltd
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QW-R106-011.a
USA575A
PIN CONFIGURATION
Preliminary
LINEAR INTEGRATED CIRCUIT
+V
IN1
-V
IN1
V
OUT
RECT. IN1
C
RECT1
1
2
3
4
5
20 V
CC
19 +V
IN2
18 -V
IN2
17 V
OUT2
16 RECT.IN2
15 C
RECT2
14 SUM OUT2
13 COMP.IN2
12 SUM NODE 2
11 GAIN CELL IN2
SUM OUT 1 6
COMP. IN1 7
V
REF
8
GAIN CELL IN1 9
GND 10
PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PIN NAME
+V
IN1
-V
IN1
V
OUT
RECT. IN1
C
RECT1
SUM OUT1
COMP. IN1
V
REF
GAIN CELL IN1
GND
GAIN CELL IN2
SUM NODE 2
COMP. IN2
SUM OUT2
C
RECT2
RECT. IN2
V
OUT2
-V
IN2
+V
IN2
V
CC
DESCRIPTION
Non-Inverted Input 1
Inverted Input 1
Output
Rectifier 1 Input
External Capacitor Pinout for Rectifier 1
Summation Output 1
Compensator Pin
Voltage Reference
Variable Gain Cell Input 1
Ground
Variable Gain Cell Input 2
Summation Node 2
Compensator Pin
Summation Output 2
External Capacitor Pinout for Rectifier 2
Rectifier 2 Input
Output 2
Inverted Input 2
Non-Inverted Input 2
Positive Power Supply
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QW-R106-011.a
USA575A
BLOCK DIAGRAM
Preliminary
LINEAR INTEGRATED CIRCUIT
+V
IN1
1
-V
IN1
2
V
OUT
3
RECT. IN1 4
+
V
CC
-
+
OP AMP
OP AMP
3.8k
-
20 V
CC
19 +V
IN2
18 -V
IN2
17 V
OUT2
16 RECT.IN2
3.8k
C
RECT1
5
SUM OUT 1 6
COMP. IN1 7
V
REF
8
GAIN CELL IN1 9
GND 10
V
REF
∑
∑
15 C
RECT2
14 SUM OUT2
13 COMP.IN2
10k
∆G
12 SUM NODE 2
∆G
10k
11 GAIN CELL IN2
10k
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QW-R106-011.a
USA575A
Preliminary
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Single Supply Voltage
V
CC
-0.3 ~ 8
V
Voltage Applied to Any Other Pin
V
IN
-0.3 ~ (V
CC
+0.3)
V
Operating Ambient Temperature Range
T
A
-40 ~ +85
°C
Storage Temperature Range
T
STG
-65 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
PARAMETER
SYMBOL
SSOP-20
TSSOP-20
θ
JA
RATINGS
117
140
UNIT
°C/W
°C/W
Junction to Ambient
ELECTRICAL CHARACTERISTICS
(Typical values are at T
A
=25°C. Minimum and Maximum values are for the full operating temperature range:
-40~+85°C, except SSOP package is tested at +25°C only. V
CC
=5V, unless otherwise stated. Both channels are
tested in the expandor mode)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
FOR COMPANDOR, INCLUDING SUMMING AMPLIFIER
Supply Voltage (Note 1)
V
CC
3
5
7
V
Supply Current
I
CC
No Signal
3
4.2
5.5
mA
Reference Voltage (Note 2)
V
REF
V
CC
=5V
2.4
2.5
2.6
V
Summing Amp Output Load
R
L
10
kΩ
Total Harmonic Distortion
THD
1kHz,0dB BW=3.5kHz
0.12
1.5
%
Output Voltage Noise
E
NO
BW=20kHz,R
S
=0Ω
6
30
µV
Unity Gain Level
0dB
1kHz
-1.5
1.5
dB
Output Voltage Offset
V
OS
No Signal
-150
150
mV
Output DC Shift
No Signal to 0dB
-100
100
mV
Gain Cell Input=0dB, 1kHz
-1.0
1.0
dB
Rectifier Input=6dB, 1kHz
Tracking Error Relative to 0dB
Gain Cell Input=0dB, 1kHz
-1.0
1.0
dB
Rectifier Input=-30dB, 1kHz
Crosstalk
1kHz, 0dB, C
REF
=220µF
-80
-65
dB
FOR OPERATIONAL AMPLIFIER
Output Swing
V
O
R
L
=10kΩ
V
CC
-0.4 V
CC
V
Output Load
R
L
1kHz
600
Ω
Input Common-Mode Range
CMR
0
V
CC
V
Common-Mode Rejection Ratio
CMRR
60
80
dB
Input Bias Current
I
B
V
IN
=0.5V~4.5V
-1
1
µA
Input Offset Voltage
V
OS
3
mV
Open-Loop Gain
A
VOL
R
L
=10kΩ
80
dB
Slew Rate
SR
Unity Gain
1
V/µs
Bandwidth
GBW
Unity Gain
3
MHz
Input Voltage Noise
E
NI
BW=20kHz
2.5
µV
Power Supply Rejection Ratio
PSRR
1kHz, 250mV
60
dB
Notes: 1. Operation down to V
CC
=2V is possible, but performance is reduced.
2. Reference voltage, V
REF
, is typically at 1/2V
CC
.
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QW-R106-011.a
USA575A
Preliminary
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
7
EXP IN
10µF
9
10k
∆G
∑
6
10k
10µF
4
3.8k
5
2.2µF
V
REF
Figure 1. Typical Expandor Configuration
8
EXP OUT
30k
1µF
V
REF
8
12
30k
COMP IN
13
10µF
10k
∑
14
10µF
COMP OUT
∆G
10k
11
16
3.8k
15
2.2µF
4.7µF
Figure 2. Typical Compressor Configuration
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QW-R106-011.a
模拟与混合信号
