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STMicroelectronics TDA8215B
- Part No.:
- TDA8215B
- Manufacturer:
- STMicroelectronics
- Category:
- Video Processing
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
TDA8215B.pdf
- Description:
- IC VIDEO 16POWERDIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,324
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Product details
Overview
TDA8215B from STMicroelectronics is a monolithic horizontal and vertical deflection circuit with integrated super sandcastle generator and video identification output, designed for PAL TV systems. It directly drives line Darlington transistors and ±1A frame yoke loads, features PLL-based line synchronization, frame oscillator (20–25 ms free-running period), and short-circuit protected frame output - deployed in cost-sensitive CRT display power stages.
For engineers reviewing the TDA8215B datasheet, TDA8215B pinout, TDA8215B application, or TDA8215B equivalent, this IC supports precise line/frame timing generation, composite video signal processing, burst gate pulse positioning, and direct yoke drive without external protection components - critical for legacy PAL monitor and TV chassis design.
Technical Context
The TDA8215B integrates a line phase detector with voltage-controlled oscillator (VCO) synchronized by line flyback pulses, where internal thresholds (LT11 = 3.2 V, HT11 = 6.6 V) define oscillator timing. Its frame oscillator uses RC-tuned free-running period (23 ms typical with 845 kΩ/180 nF), and frame blanking detection triggers on VCC2 − 2VBE threshold.
Video identification operates via DC-level comparison: high output (4.5–6.3 V) when no video signal is present, low (0.6–0.9 V) with video - enabling sync-locked blanking control. The super sandcastle output delivers three precisely timed TTL-compatible pulses (burst key, line blanking, frame blanking) referenced to line flyback center with 2.7 µs delay tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Line Oscillator Period | 64 µs typical (PAL standard line time) |
| Frame Output Current | ±1 A continuous, ±1.5 A non-repetitive - enables direct yoke drive without external amplification |
| Super Sandcastle Pulse Width | Burst key: 4.5 µs typ., line blanking: 4.5 V level, frame blanking: 2.5 V level - meets PAL timing mask requirements |
| Video Identification Threshold | Detects presence/absence of composite video via 0.9 V vs. 6.3 V output swing - used for automatic blanking control |
| Line Output Saturation Voltage | 2.2 V at 800 mA peak - ensures sufficient voltage headroom for Darlington base drive |
| Frame Oscillator Drift | 4.1 × 10⁻³ Hz/°C - maintains vertical stability across 0–70 °C ambient range |
| Supply Voltages | VCC1 = 10 V, VCC2 = 30 V, V9 = 10–58 V - supports multi-rail CRT deflection power architecture |
Pinout & Package
Package: PDIP20 (Plastic Dual In-line Package, 20-pin, 24.8 mm × 8.8 mm, 2.54 mm pitch), rated for 0–70 °C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Super Sandcastle Output | Drives burst gate, line blanking, and frame blanking pulses with TTL-compatible levels |
| 2 | Frame Oscillator | RC-tuned node for 20–25 ms free-running frame period; bias current 30 nA |
| 3, 4 | Flyback Generator Inputs | Accept line flyback pulse; internal comparator compares to 2 V reference for sync separation |
| 8 | Video Identification Output | Open-collector logic-level output indicating video presence (low = video active) |
| 10 | Frame Output | Short-circuit protected ±1 A driver for vertical yoke; saturation voltage 0.37–2.4 V depending on direction |
| 11 | Line Oscillator | RC-tuned node for 62–66 µs line period; internal thresholds 3.2 V / 6.6 V |
| 12 | Phase Detector Output | Sinks 250–500 µA during synchro pulse; controls VCO lock stability |
| 13 | Line Sawtooth Input | Accepts integrated flyback-derived sawtooth (min 2 VPP); input impedance 5.8 kΩ typical |
| 17 | Line Output | Open-collector Darlington drive output; 22 µs negative pulse width at 64 µs period |
| 18 | Line Flyback Input | Sync separator input; 2 V switching threshold, 8 mA max input current at 800 V peak |
| 19 | Super Sandcastle Output | Alternate SSC output pin; identical timing/function as Pin 1 |
| 20 | Video Input | Composite video signal input; internal reference 1.75 V, input bias current <1 µA |
Key Features
| Feature | Design Value |
|---|---|
| Direct Frame Yoke Drive | ±1 A continuous output with thermal and short-circuit protection eliminates external power stage |
| Integrated Super Sandcastle Generator | Three synchronized TTL pulses (burst, line blanking, frame blanking) with sub-microsecond timing accuracy |
| Video Identification Circuit | Self-contained DC-level detection distinguishes video/no-video states without external comparators |
| PLL-Based Line Synchronization | Phase detector + VCO locks to line flyback with <2 µs jitter; frame sync inhibits drift at field start |
| Minimal External Components | Only RC networks required for line/frame oscillators and burst gate timing - reduces BOM count and layout area |
Applications
| PAL CRT Television Chassis | Monochrome Monitor Deflection System |
|---|---|
Use Scenario: Full PAL TV signal processing including line/frame sync separation, yoke drive, and blanking pulse generation in compact chassis designs. IC Role / Device Role / Timing Role: Central deflection controller providing line flyback timing, frame oscillator reference, and super sandcastle pulse alignment. Use Value: Eliminates discrete sync separators and separate frame oscillator ICs - reduces component count by ≥7 parts per system. | Use Scenario: Low-cost monochrome display requiring stable vertical/horizontal sweep with minimal external passive components. IC Role / Device Role / Timing Role: Generates precise 15.625 kHz line and 50 Hz frame timing while driving yoke directly. Use Value: ±1 A frame output and open-collector line drive enable direct connection to yoke windings - no external driver transistors needed. |
| Legacy Broadcast Test Equipment | Industrial CRT-Based HMI Displays |
Use Scenario: Signal generation and verification tools requiring accurate PAL-standard blanking and burst gate timing. IC Role / Device Role / Timing Role: Video identification and super sandcastle outputs provide traceable timing markers for waveform analysis. Use Value: Burst key pulse delay (2.7 µs typ.) and width (4.5 µs typ.) meet EBU specification tolerances for test signal integrity. | Use Scenario: Ruggedized human-machine interface displays in factory automation using CRTs with long service life requirements. IC Role / Device Role / Timing Role: Frame output thermal protection and short-circuit immunity ensure reliability under mechanical vibration-induced yoke stress. Use Value: Built-in overload protection extends mean time between failures (MTBF) by eliminating external fuse and sensing circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar horizontal/vertical deflection controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDA8215 | Predecessor version; lacks enhanced frame output protection and tighter sandcastle timing specs | Compatible in legacy designs but not recommended for new designs requiring EBU-compliant burst timing | Select only for repair or backward-compatible replacement where original BOM specifies TDA8215 |
| TDA8217 | Pal decoder and video processor - not a deflection controller; lacks line/frame oscillator, yoke drive, sandcastle outputs | Used alongside TDA8215B in full PAL signal chain, not as functional substitute | Not a drop-in alternative; serves complementary role in same system architecture |
Compared with TDA8215 and TDA8217, the TDA8215B uniquely integrates complete deflection control, yoke drive, and PAL-specific timing generation in one package - making it irreplaceable for standalone CRT sweep subsystems requiring minimal external components and guaranteed timing compliance.
Availability
TDA8215B is available at Aetrix Electronics and suitable for PAL television chassis, monochrome monitor deflection systems, and broadcast test equipment requiring stable component supply and long-term obsolescence management.
Supply support for TDA8215B includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and automotive ICs since 1987.
The TDA8215B belongs to ST's legacy TV signal processing product line, engineered specifically for cost-optimized, single-chip CRT deflection control in PAL-standard consumer and industrial displays.
FAQ
What is the minimum required sawtooth amplitude on Pin 13 for reliable line oscillator locking?
The TDA8215B requires a minimum 2 VPP sawtooth amplitude on Pin 13, with 2.5 VPP typical, to ensure stable phase detector operation and prevent loss of line lock. Lower amplitudes cause increased jitter or unlock under temperature variation due to insufficient comparator overdrive margin.
Can the TDA8215B operate with NTSC timing standards?
No - the TDA8215B is optimized for PAL line (64 µs) and frame (20–25 ms) periods. Its internal thresholds, oscillator RC constants, and sandcastle timing are fixed for PAL compliance; NTSC (52.6 µs line, 16.67 ms frame) operation is not supported and will result in unstable synchronization.
How does the video identification output behave during sync pulse intervals?
During line sync pulses, the video identification output (Pin 8) remains in its active state (low if video present, high if absent) - it does not toggle. The circuit samples video level only during active video intervals; sync pulses do not affect the stored identification state.
Is external heat sinking required for continuous ±1 A frame output operation?
Yes - at ±1 A continuous load and 70 °C ambient, junction temperature exceeds 120 °C without heatsinking. With the specified 40 °C/W junction-to-ambient thermal resistance, a minimum 15 cm² copper pour (35 µm thick) is required to maintain TJ ≤ 120 °C per datasheet recommendations.
TDA8215B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Deflector Circuit
- Applications:
- Professional Video
- Standards:
- PAL
- Control Interface:
- Analog Voltage
- Voltage - Supply:
- 9V ~ 10.5V
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-PowerDIP
TDA8215B FAQ
1.How can I place an order for TDA8215B through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA8215B on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TDA8215B reliable?
The price and inventory of TDA8215B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA8215B is usually 5 days.
3.What payment methods are accepted for TDA8215B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA8215B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA8215B?
TDA8215B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA8215B order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TDA8215B?
For technical support, including TDA8215B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA8215B requirements.
6.How does Aetrix verify that TDA8215B is sourced from the original manufacturer or authorized distributors?
All TDA8215B products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TDA8215B meets industry standards.
7.What is the process for return or replacement of TDA8215B?
All TDA8215B units undergo pre-shipment inspection (PSI). If there is an issue with TDA8215B, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TDA8215B part is unused and in its original packaging.
Return procedure for TDA8215B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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