TEA5101A
TYPICAL APPLICATION
The TEA5101Aconsists of three independent am-
plifiers. Each of them includes :
- A differential amplifier, the gain of which is fixed
by external feedback resistors,
- A voltage reference,
- A PMOS transistor providing a copy of the cath-
ode current,
- A protection diode against CRT arc discharges.
200V
VDD
12V
10µF
VCC
4.7µF
2
5
9
1nF
39kΩ
VDD
VDD
VDD
10pF*
220Ω
7
6
CATHODE 1
4
3
1
1kΩ
1.8kΩ
* optional
VREF
12
220Ω
10
11
15
13
14
CUT-OFF
SAMPLING
TEA5101A
8
4/6