Philips 20HFL2809D/12, Руководство по обслуживанию

Страница: 30 / 69

IC Data Sheets EN 30 VEM14.1E_LA 8.
2014-Apr-09
back to
div. table
8.8
Diagram 10-4-4 B04, Audio amp, Short protection, Headphone amp , TS4962M (U7 and U23, for sets with
smaller screen sizes than 24”)
Figure 8-8 Internal block diagram and pin configuration
Block diagram
Pinning information
TS4962M
In-
Stdby
In+
Out-
Out+
Vcc
C2
C1
A1
A2
A3
B1 B2
B3
C3
GND
Internal
Bias
PWM
Output
Bridge
H
Oscillator
150k
150k
+
-
300k
V
DD
1/A1
7/C1 8/C2 9/C3
4/B1 6/B3
2/A2 3/A3
5/B2
V
DD
IN
-
IN
+
GND
STBY
GND
OUT
+
OUT
-
V
DD
1/A1
7/C1 8/C2 9/C3
4/B1 6/B3
2/A2 3/A3
5/B2
V
DD
IN
-
IN
+
GND
STBY
GND
OUT
+
OUT
-
IN+ : positive differential input
IN- : negative differential input
VDD : analog power supply
GND : power supply ground
STBY : standby pin (active low)
OUT+ : positive differential output
OUT- : negative differential output
19561_ 3 00_140102.ep s
140409