TDA9105 Deflection Processor for Multi-Sync Monitors 12V 40mA IC DIP-42 (Wide)
The TDA9105 is a highly integrated deflection processor designed for multi-sync CRT monitor applications. It combines horizontal and vertical synchronization processing, dual phase-locked loops (PLLs), horizontal drive generation, vertical ramp generation, East-West correction, dynamic horizontal phase correction, and dynamic focus control within a single device. This integration significantly reduces external component count while providing accurate control of display geometry and scanning functions.
The TDA9105 device supports a wide range of horizontal and vertical synchronization frequencies, making it suitable for multisync monitor systems. Built-in safety features include X-ray protection, supply voltage monitoring, lock/unlock detection, blanking control, and output shutdown functions. The TDA9105 also provides extensive geometry adjustments such as pincushion correction, trapezoid correction, side-pin balance, parallelogram correction, vertical size, vertical position, S-correction, and dynamic focus generation for high-quality CRT image reproduction.
Features:
- Complete CRT monitor deflection processor.
- Designed for multisync monitor applications.
- Integrated dual PLL architecture.
- Horizontal synchronization processing.
- Vertical synchronization processing.
- Horizontal drive output generation.
- Vertical ramp generator.
- East-West geometry correction.
- Dynamic horizontal phase correction.
- Vertical dynamic focus generation.
- Keystone correction capability.
- Side-pin balance adjustment.
- Parallelogram correction adjustment.
- Vertical size and position control.
- S-correction and C-correction functions.
- Composite blanking output.
- Lock/Unlock detection output.
- X-ray protection circuitry.
- Supply voltage monitoring.
- Output shutdown protection.
- Low external component count.
- TTL compatible sync inputs.
- Independent horizontal and vertical reference outputs.
- Suitable for CRT display control systems.
Specifications:
| Parameter | Value |
|---|---|
| Device Type | TDA9105 CRT Deflection Processor |
| Supply Voltage (VCC) | 10.8V to 13.2V |
| Typical Supply Voltage | 12V |
| Maximum Supply Voltage | 13.5V |
| Typical Supply Current | 40mA |
| Maximum Supply Current | 60mA |
| Maximum Oscillator Frequency | 150kHz |
| Horizontal Sync Input Voltage | 0V to 5.5V |
| Vertical Sync Input Voltage | 0V to 5.5V |
| Horizontal Drive Output Current | ±20mA |
| Composite Blanking Output Current | 10mA Max |
| Moire Output Current | 10mA Max |
| Reference Voltage (Horizontal) | 8V |
| Reference Voltage (Vertical) | 8V |
| Operating Temperature Range | 0°C to +70°C |
| Storage Temperature Range | -40°C to +150°C |
| Maximum Junction Temperature | 150°C |
| Package Type | SDIP-42 (DIP-42) |
| Technology | Bipolar/CMOS Mixed Signal |
Pinout:
| Pin | Name | Function |
|---|---|---|
| 1 | V‑FOCUS | Vertical Dynamic Focus Output |
| 2 | H‑LOCKOUT | First PLL Lock/Unlock Output |
| 3 | PLL2C | Second PLL Loop Filter |
| 4 | H‑DUTY | DC control of horizontal drive output duty‑cycle. Grounding this pin inhibits horizontal & vertical outputs. A capacitor here enables soft‑start on H‑drive output. |
| 5 | H‑FLY | Horizontal Flyback Input (positive polarity) |
| 6 | H‑GND | Horizontal Section Ground |
| 7 | H‑REF | Horizontal Section Reference Voltage (must be filtered) |
| 8 | FC2 | VCO Low Threshold Filtering Capacitor |
| 9 | FC1 | VCO High Threshold Filtering Capacitor |
| 10 | C0 | Horizontal Oscillator Capacitor |
| 11 | R0 | Horizontal Oscillator Resistor |
| 12 | PLL1F | First PLL Loop Filter |
| 13 | H‑LOCKCAP | First PLL Lock/Unlock Time Constant Capacitor. When frequency changes, a blanking pulse (pin 23) is generated; its duration is proportional to this capacitor. |
| 14 | PLL1INHIB | TTL‑compatible input for PLL1 output current inhibition |
| 15 | H‑POS | DC control for Horizontal Centering |
| 16 | XRAY‑IN | X‑RAY protection input (with internal latch function) |
| 17 | H‑SYNC | TTL‑compatible Horizontal Sync Input |
| 18 | V<sub>CC</sub> | Supply Voltage (12 V typ.) |
| 19 | GND | Ground |
| 20 | H‑OUTEM | Horizontal Drive Output (emitter of internal transistor) |
| 21 | H‑OUTCOL | Horizontal Drive Output (open collector of internal transistor) |
| 22 | BLK OUT | Blanking Output – activated during frequency changes, X‑RAY trigger, low V<sub>S</sub>, stand‑by (via pin 4), and during H‑FLY, V‑FLY, V‑SYNC, and sawtooth retrace. |
| 23 | MOIRE | Moire Output |
| 24 | V‑GND | Vertical Section Signal Ground |
| 25 | V‑AGCCAP | Memory capacitor for Automatic Gain Control loop in the vertical ramp generator |
| 26 | V‑REF | Vertical Section Reference Voltage |
| 27 | V‑CAP | Vertical Sawtooth Generator Capacitor |
| 28 | VS‑AMP | DC control of Vertical S‑Shape amplitude |
| 29 | C‑CORR | DC control of Vertical C‑Correction |
| 30 | V‑OUT | Vertical Ramp Output (frequency‑independent amplitude with S‑Correction) |
| 31 | V‑AMP | DC control of Vertical Amplitude Adjustment |
| 32 | VDCOUT | Vertical Position Reference Voltage Output |
| 33 | V‑POS | DC control of Vertical Position Adjustment |
| 34 | V‑SYNC | TTL‑compatible Vertical Sync Input |
| 35 | VDCIN | Geometric Correction Reference Voltage Input |
| 36 | V‑FLY | Vertical Flyback Input (positive polarity) |
| 37 | EWOUT | East/West Pincushion Correction Parabola Output |
| 38 | KEYST | DC control of Keystone Correction |
| 39 | EWAMP | DC control of East/West Pincushion Correction Amplitude |
| 40 | GEOMOUT | Side Pin Balance & Parallelogram Correction Parabola Output |
| 41 | KEYBAL | DC control of Parallelogram Correction |
| 42 | SPINBAL | DC control of Side Pin Correction Amplitude |
Applications:
- CRT computer monitors.
- Multi-sync VGA monitors.
- High-resolution CRT displays.
- Industrial display systems.
- Video display terminals.
- Workstation monitors.
- Graphics monitors.
- Display geometry correction systems.
- CRT television development platforms.
- Monitor service and repair applications.
- Professional video display equipment.
Package Included:
- 1x TDA9105 Deflection Processor for Multi-Sync Monitors 12V 40mA IC DIP-42 (Wide).