Overview
The TDA9886TS/V4,112 is a multistandard vision and sound Intermediate Frequency (IF) signal Phase-Locked Loop (PLL) demodulator produced by NXP USA Inc. This component is designed to support various television standards including PAL, SECAM, and NTSC, and it handles both positive and negative modulation. It features an alignment-free design, which simplifies the integration process in various applications such as TVs, VTRs, PCs, and Set-Top Boxes (STBs).
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VP) | 4.5 | 5.0 | 5.5 | V | |
| Supply Current (IP) | 52 | 63 | 70 | mA | |
| VIF Input Voltage (Vi(VIF)(rms)) | CL < 20 pF, RL > 1 kΩ | 5 | 6 | MHz | |
| Video Bandwidth (Bv(-3dB)(trap)) | ftrap = 4.5 MHz | 3.95 | 4.05 | MHz | |
| Sound Carrier Trap Frequencies | 4.5, 5.5, 6.0, 6.5 | MHz | |||
| Reference Frequency Input | 4 MHz | ||||
| AFC Output | 4-bit digital-to-analog converter |
Key Features
- Alignment-free multistandard (PAL, SECAM, and NTSC) vision and sound IF signal PLL demodulator for positive and negative modulation.
- Gain-controlled wideband Vision Intermediate Frequency (VIF) amplifier, AC-coupled.
- Multistandard true synchronous demodulation with active carrier regeneration, ensuring very linear demodulation, good intermodulation figures, reduced harmonics, and excellent pulse response.
- Fully integrated VIF Voltage-Controlled Oscillator (VCO), alignment-free, with frequencies switchable for all negative and positive modulated standards via I2C-bus.
- Digital acquisition help with VIF frequencies of 33.4 MHz, 33.9 MHz, 38.0 MHz, 38.9 MHz, 45.75 MHz, and 58.75 MHz.
- Precise fully digital Automatic Frequency Control (AFC) detector with 4-bit digital-to-analog converter, AFC bits readable via I2C-bus.
- TakeOver Point (TOP) adjustable via I2C-bus or alternatively with a potentiometer.
- Fully integrated sound carrier trap for 4.5 MHz, 5.5 MHz, 6.0 MHz, and 6.5 MHz, controlled by FM-PLL oscillator.
- AM demodulator without extra reference circuit.
- Alignment-free selective FM-PLL demodulator with high linearity and low noise.
- I2C-bus control for all functions with four selectable I2C-bus addresses.
Applications
The TDA9886TS/V4,112 is suitable for a variety of applications, including:
- Television (TV) systems.
- Video Tape Recorders (VTRs).
- Personal Computers (PCs) with TV tuner cards.
- Set-Top Boxes (STBs).
Q & A
- What are the supported TV standards for the TDA9886TS/V4,112?
The TDA9886TS/V4,112 supports PAL, SECAM, and NTSC TV standards. - What is the supply voltage range for the TDA9886TS/V4,112?
The supply voltage range is from 4.5 V to 5.5 V. - How is the VIF amplifier gain controlled in the TDA9886TS/V4,112?
The VIF amplifier gain is controlled by emitter degeneration and collector resistor variation, with a total gain control range of typically 66 dB. - What are the frequencies supported by the sound carrier trap?
The sound carrier trap supports frequencies of 4.5 MHz, 5.5 MHz, 6.0 MHz, and 6.5 MHz. - How is the Automatic Frequency Control (AFC) implemented in the TDA9886TS/V4,112?
The AFC is implemented with a precise fully digital detector and a 4-bit digital-to-analog converter, with AFC bits readable via the I2C-bus. - What is the purpose of the TakeOver Point (TOP) in the TDA9886TS/V4,112?
The TakeOver Point (TOP) is adjustable via the I2C-bus or alternatively with a potentiometer, and it is used for tuner AGC control current generation. - Does the TDA9886TS/V4,112 support I2C-bus control?
Yes, the TDA9886TS/V4,112 supports I2C-bus control for all functions, with four selectable I2C-bus addresses. - What are the package options available for the TDA9886TS/V4,112?
The component is available in SO24, SSOP24, and HVQFN32 packages. - Is the TDA9886TS/V4,112 compliant with environmental standards?
Yes, it is compliant with the latest environmental standards of the European Union, having passed ROHS certification and the REACH directive. - What is the role of the VIF-AGC detector in the TDA9886TS/V4,112?
The VIF-AGC detector generates a control current that adjusts the VIF amplifier gain and is used in the PLL loop filter to control the VCO frequency.
