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产品信息
TDA18250BHN/C1Y
调谐器 Cable silicon tuner
General description TDA18250BHN/C1Y
The TDA18250BHN/C1Y TDA18250B is a silicon tuner designed specifically for worldwide cable and terrestrial
digital Set Top Boxes (STB).
• The TDA18250B ensures a low system cost by saving external components such as:
– Low-Noise Amplifiers
– Surface Acoustic Wave (SAW) filters
– RF splitter
Moreover, thanks to its 8 kV ESD capability, EIA/JESD22-A114 (HBM), on the RF
input pin and the loop-through pin, the application level ESD protection can be
reduced.
Features and benefits TDA18250BHN/C1Y
Single 3.3 V supply voltage
RF frequency coverage up to 1 GHz
Flexible low IF output from 3 MHz to 7.5 MHz to ease the matching with various
demodulators
RoHS compliant
I2C-bus interface compatible with 3.3 V microcontrollers
Strong Immunity to wireless interferers (WLAN, GSM, LTE)
Multi-reference clock frequency compliant:16 MHz, 24 MHz, 25 MHz, 27 MHz and
30 MHz
Crystal oscillator output buffer to drive demodulator, SoC or slave tuner
Slave Tuner Output (STO), integrated splitter for dual tuner applications
Fully integrated oscillators
LT output
Fully integrated IF and RF selectivity; eliminating the need for external SAW filters
Single-ended RF input (no need for external balun)
Enhanced ESD protection (8 kV HBM) on RF_IN and LT pins
Alignment free
Excellent return loss compatible with cable requirements
Integrated RSSI function, readable through I2C-bus
Integrated temperature sensor
Integrated gain control