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Anonymous users2024-02-08Pin function of the TDA4856.
1. Counter-path pulse input.
2. X-ray protection input.
3,B controls the OTA (Operational Transimpedance Amplifier) output.
4,b controls the comparison input.
5,B controls OTA input.
6, b control drive output.
7. Power ground.
8. Line excitation output.
9. X-ray protection reset selects input.
10，vcc
11. Left and right pillow calibration output.
12, field output 2 (rising field sawtooth wave).
13, field output 1 (descending field sawtooth wave).
14. Field synchronous input.
15. Line synchronization composite synchronization signal input.
17. The line is out of lock to protect the field blanking output.
18, I2C bus clock input.
19, bus data input output.
20. The left and right pillow correction control signal output.
21. Compensation input for field amplitude change caused by high voltage change.
22, field amplitude control external electric heater (field amplitude control AGC) 23, field oscillation external resistor.
24, field oscillation external electric heater.
25, ground. 26, PLL1 external filter.
27, frequency voltage conversion voltage buffer output.
28, line oscillation reference external current.
29, row oscillation external electric heater.
30, PLL2 external filter soft start.
31. Compensation input for line width change caused by high voltage change.
32. Horizontal and vertical dynamic focus output.
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Anonymous users2024-02-07tda4856
1 row counter-path pulse input, 2 X-ray protection inputs, 3+B control OTA (operational amplifier) output, 4+B control comparison inputs, 5+B control OTA inputs.
6 +B control drive output 7 power supply circuit ground 8 line excitation output 9 X-ray protection reset selection input 10 power supply 11 left and right pillow calibration output.
12-field excitation output: 2 (positive polarity field, sawtooth wave), 13 field excitation output: 1 (negative polarity field, sawtooth wave), 14 field synchronous input, 15-line synchronous composite synchronous input.
19 I2C bus data signal input output 20 left and right pillow correction imbalance correction signal output 21 field amplitude change caused by high voltage change compensation input.
22 field amplitude control external capacitor (field amplitude control AGC), 23 field contact oscillation resistor, 24 field contact oscillation capacitor, 25 signal circuit ground, 26 PLL1 external filter.
27 Frequency: Voltage Conversion Voltage: Buffer Output: 28-line oscillation reference, 29-line oscillator, 30-line external capacitor, PLL2 external filter, soft start.
31 row width change caused by high voltage change compensation input 32 horizontal and vertical dynamic focus output.
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Anonymous users2024-02-06The TDA8351 is a field-output circuit that features a high-rate DC-symmetrical field-output bridge circuit, a vertical flyback switch, and a built-in automatic protection circuit (output short circuit between pins 7 and 4, short circuit between output and power supply, temperature overtemperature protection).
Pin 1: Normal-phase input.
Pin 2: Inverting input.
Pin 3: 16V – Power 1
Pin 4: 8V – Output (bottom).
5 feet: 0v - ground.
Pin 6: 45V – Power 2
Pin 7: 8V – Output (top).
8 pins: field reference current.
Pin 9: 8V – Feedback input.
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