TDA7850
Table 4.
Electrical specifications
Electrical characteristics (continued)
(Refer to the test and application diagram, V = 14.4V; R = 4Ω; R = 600Ω; f = 1KHz;
S
L
g
T
= 25°C; unless otherwise specified).
amb
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
(Amp: Mute)
Att ≥ 80dB; POref = 4W
(Amp: Play)
6.5
7
VAM in VS automute threshold
V
Att < 0.1dB; PO = 0.5W
7.5
12
8
V
MUTE = 1.5V
(Sourced Current)
MUTE = 3.5V
7
18
18
μA
μA
Ipin23
Muting pin current
V
-5
HSD section
Vdropout Dropout voltage
IO = 0.35A; VS = 9 to 16V
0.25
0.6
V
Iprot
Current limits
400
8
800
mA
Offset detector (Pin 25)
VM_ON
V
V
V
Mute voltage for DC offset
detection enabled
Vstby = 5V
VM_OFF
VOFF
6
4
Detected differential output offset Vstby = 5V; Vmute = 8V
2
0
3
Vstby = 5V; Vmute = 8V
VOFF > 4V
Pin 25 voltage for detection =
TRUE
V25_T
1.5
V
V
Vstby = 5V; Vmute = 8V
VOFF > 2V
Pin 25 Voltage for detection =
FALSE
V25_F
12
1. Saturated square wave output.
9/18
STMICROELECTRONICS [ ST ]
