Overview
The TDA18219HN/C1/S1557 is a silicon tuner designed by NXP Semiconductors for terrestrial and cable digital TV reception. This component supports a wide range of digital TV standards, including DVB-T/T2, ISDB-T, DTMB, ATSC, and DVB-C. It is engineered to provide a low IF (LIF) signal to a channel demodulator, facilitating seamless integration into various digital TV systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| RF frequency (fRF) | 42 | - | 870 | MHz |
| Tuner noise figure (NFtun) | - | 5.0 | 5.9 | dB |
| Supply voltage (VCC) | -0.3 | - | 3.6 | V |
| Channel bandwidths | - | - | 1.7 MHz, 6 MHz, 7 MHz, 8 MHz, 10 MHz | - |
| LIF channel center frequency | - | - | 3 MHz to 5 MHz | - |
| Tuning time | - | - | 5 ms | - |
Key Features
- Fully integrated IF selectivity, eliminating the need for external SAW filters
- Fully integrated oscillators
- Alignment free
- Single 3.3 V supply voltage
- Low power consumption
- Integrated wideband gain control
- Crystal oscillator output buffer (16 MHz) for single crystal applications
- I2C-bus interface compatible with 3.3 V microcontrollers
- Easy programming
- Loop-Through (LT) capability
- RoHS compliant
Applications
The TDA18219HN/C1/S1557 is designed for use in various digital TV systems, including terrestrial and cable TV receivers. It is particularly suitable for applications requiring support for multiple digital TV standards such as DVB-T/T2, ISDB-T, DTMB, ATSC, and DVB-C. Its compact design and low power consumption make it an ideal choice for modern TV sets, set-top boxes, and other digital TV equipment.
Q & A
- What is the TDA18219HN/C1/S1557 used for? The TDA18219HN/C1/S1557 is a silicon tuner used for terrestrial and cable digital TV reception.
- Which digital TV standards does it support? It supports DVB-T/T2, ISDB-T, DTMB, ATSC, and DVB-C.
- What is the RF frequency range of the TDA18219HN/C1/S1557? The RF frequency range is from 42 MHz to 870 MHz.
- What is the typical tuner noise figure? The typical tuner noise figure is 5.0 dB.
- What is the supply voltage for the TDA18219HN/C1/S1557? The supply voltage is 3.3 V.
- Does the TDA18219HN/C1/S1557 require external SAW filters? No, it has fully integrated IF selectivity, eliminating the need for external SAW filters.
- What is the tuning time of the TDA18219HN/C1/S1557? The tuning time is 5 ms.
- Is the TDA18219HN/C1/S1557 RoHS compliant? Yes, it is RoHS compliant.
- What interface does the TDA18219HN/C1/S1557 use for communication? It uses an I2C-bus interface compatible with 3.3 V microcontrollers.
- What are the channel bandwidths supported by the TDA18219HN/C1/S1557? It supports channel bandwidths of 1.7 MHz, 6 MHz, 7 MHz, 8 MHz, and 10 MHz.
