TDA6120Q NXP Semiconductors, TDA6120Q Datasheet - Page 10

• Manufacturer Part Number: TDA6120Q
• Manufacturer: NXP Semiconductors

Specifications of TDA6120Q

• Single Supply Voltage (typ): Not RequiredV
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Mounting: Through Hole
• Lead Free Status / RoHS Status: Compliant

Philips Semiconductors
FLASHOVER PROTECTION
The TDA6120Q needs an external protection diode
combined with a 50
against CRT flashover discharge.
An external 147
combination with a 2 kV spark gap between the cathode
and ground will limit the maximum clamp current (for this
resistor value, the CRT has to be connected to the main
printed-circuit board).
2000 Dec 13
Video output amplifier
carbon high-voltage resistor in
resistor to protect the video amplifier
Fig.7 Output (pins 12 and 13; falling edge) as a function of input signal.
V oc
162.5
37.5
150
100
V i
50
x
0
x
t pd
t o(r)
10
This external network causes an increase in the rise and
fall times and a decrease in the overshoot.
Pin 10 must be decoupled to pin 8:
t st
By a capacitor >100 nF with good HF behaviour (e.g.
foil). This capacitor must be placed as close as possible
to pins 10 and 8; definitely within 5 mm.
By a capacitor >10 F on the picture tube base
printed-circuit board (common for 3 output stages).
overshoot (in %)
MGK445
38.75
36.25
t
t
Product specification
TDA6120Q