TDA7564 Datasheet, PDF (5/20 Pages) STMicroelectronics – MULTIFUNCTION QUAD POWER AMPLIFIER WITH BUILT-IN DIAGNOSTICS FEATURES

TDA7564
ELECTRICAL CHARACTERISTICS (continued)
(Refer to the test circuit, V_S = 14.4V; R_L = 4Ω; f = 1KHz; T_amb = 25°C; unless otherwise specified.)
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
Pnop
Normal operation thresholds.
Power Amplifier in st-by
(Within these limits, the Output is
considered without faults).
1.8
Vs -1.8 V
Lsc Shorted Load det.
0.5
Ω
Lop Open Load det.
85
Ω
Lnop Normal Load det.
1.75
45
Ω
TURN ON DIAGNOSTICS 2 (Line Driver Mode)
Pgnd
Short to GND det. (below this
limit, the Output is considered in
Short Circuit to GND)
Power Amplifier in st-by
1.2
V
Pvs Short to Vs det. (above this limit,
the Output is considered in Short
Circuit to V_S)
Vs -1.2
V
Pnop
Normal operation thresholds.
(Within these limits, the Output is
considered without faults).
1.8
Vs -1.8 V
Lsc Shorted Load det.
2
Ω
Lop Open Load det.
330
Ω
Lnop Normal Load det.
7
180
Ω
PERMANENT DIAGNOSTICS 2 (Power Amplifier Mode or Line Driver Mode)
Pgnd
Short to GND det. (below this
limit, the Output is considered in
Short Circuit to GND)
Power Amplifier in Mute or Play,
one or more short circuits
protection activated
1.2
V
Pvs Short to Vs det. (above this limit,
the Output is considered in Short
Circuit to V_S)
Vs -1.2
V
Pnop
Normal operation thresholds.
(Within these limits, the Output is
considered without faults).
1.8
Vs -1.8 V
L_SC Shorted Load Det.
Pow. Amp. mode
Line Driver mode
0.5
Ω
2
Ω
V_O Offset Detection
Power Amplifier in play,
AC Input signals = 0
±1.5 ±2
±2.5
V
I_NL Normal load current detection
V_O < (V_S - 5)pk
500 mA
I_OL Open load current detection
V_O < (V_S - 5)pk
250 mA
I²C BUS INTERFACE
f_SCL Clock Frequency
400
KHz
V_IL Input Low Voltage
1.5
V
V_IH Input High Voltage
2.3
V
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