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:
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Low power consumption
–
High linearity
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Low noise figure
•
The TDA18252HN ensures ease of use with:
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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
I
2
C-bus provides:
3.3 V and 5 V microcontroller compatibility
Received Signal Strength Indicator (RSSI) data access
Die temperature sensor data access
PHILIPS [ NXP SEMICONDUCTORS ]
