TDA18252HN/C1 Ver la hoja de datos (PDF) - NXP Semiconductors.
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TDA18252HN/C1 Datasheet PDF : 6 Pages
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TDA18252HN
Cable Silicon Tuner
Rev. 3 — 16 August 2010
Product data sheet
1. General description
The TDA18252HN is a single-chip direct conversion Silicon Tuner IC designed for
digital-only cable applications.
The TDA18252HN integrates a loop-through feature that enables the RF input signal to be
used as an output for another downconverter. This feature simplifies the application and
reduces the Bill Of Materials (BOM).
• The TDA18252HN ensures a low system cost as:
– Costly components such as low-noise amplifiers, Surface Acoustic Wave (SAW)
filters and incremental crystal oscillators are eliminated from the system BOM
• The TDA18252HN high-performance Silicon Tuner meets today’s digital cable TV
reception needs with:
– Low power consumption
– High linearity
– Low noise figure
• The TDA18252HN ensures ease of use with:
– Easy on-board integration
– Efficient and effective PCB design
– Reduced external components
2. Features and benefits
Single 3.3 V power supply
Low power consumption
Extended frequency coverage of up to 1002 MHz
Digital cable reception for STB
RF loop-through
Fully integrated IF selectivity; eliminating the need for external SAW filters
Alignment free
Fully integrated oscillator with no external components
Integrated wideband gain control
Crystal oscillator output buffer (16 MHz) for single crystal applications
I2C-bus provides:
3.3 V and 5 V microcontroller compatibility
Received Signal Strength Indicator (RSSI) data access
Die temperature sensor data access
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