STA550 データシートの表示（PDF） - STMicroelectronics
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STA550 Datasheet PDF : 16 Pages
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STA550
ELECTRICAL CHARACTERISTCS (Test Condition: Vs+ = 26V, Vs- = -22V, VCD+ = 17V, VCD- = -17V, RL =
8Ω, external components at the nominal value f = 1KHz, Tamb = 25°C unless otherwise specified
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
PREAMPLIFIER AND COMPRESSOR
Vout clamp Maximum Voltage at Out_pre pin
10
11
12 Vpeak
Iin Audio input current
0.8 mA
Vcontrol Voltage at Attack_Release pin
Attenuation = 0dB
Attenuation = 6dB
Attenuation = 26dB
0
V
0.35 0.5 0.65 V
6
9
12
V
VComp_ Input voltage range for the
Th compression
-5
-1
V
Zth Input impedance of Threshold pin
100
KΩ
Voffset Output Offset at Out_pre pin with: VCRT= 0V; Attenuation = 0dB
VCRT= 0.5V; Attenuation = 6dB
VCRT= 9V; Attenuation = 26dB
-10
-250
-450
10 mV
250 mV
450 mV
THD Distortion at Out_pre:
VCRT= 0V; Attenuation = 0dB
VCRT= 0.5V; Attenuation = 6dB
VCRT= 9V; Attenuation = 26dB
0.01
%
5
%
5
%
EN Noise at Out_pre pin :
VCRT= 0V; Attenuation = 0dB
VCRT= 0.5V; Attenuation = 6dB
VCRT= 9V; Attenuation = 26dB
10(2)
µV
50
µV
60
µV
Ict Attack time current at pin
Attack_release
1.5
mA
1. This value is due to the thermal noise of the external resistors Rr and Ri.
TRACKING PARAMETERS
Gtrk Tracking reference voltage gain
13
14
15
V
Vtrk_out Tracking ref. output voltage
0
20
V
Itrk_out Current capability
5
6
7
mA
Ztrk_in Input impedance (TRK1/2)
1
MΩ
OUTPUT BRIDGE
Gout Half Output bridge gain
5.5
6
6.5 dB
Gch Output bridge differential gain
11
12
13
dB
∆Gch Output bridges gain mismatch
-1
1
dB
Pout Continuous Output Power
THD = 0.5%
THD = 10%
50
55
W
64
70
W
THD = 10%; RL= 4Ω; VCD+ = 13V;
64
70
W
VCD- = -13V; VS+ = 20V; VS- = -20V
THD Total harmonic distortion of the
output bridge
Po = 5W
f = 20Hz to 20KHz; Po = 30W
0.01
%
0.1
%
VOff Output bridge D.C. offset
50 mV
6/16
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