FI1216MF Datasheet, PDF (2/24 Pages) NXP Semiconductors – Desktop video tuner multi system CCIR L/L’ and B/G

Philips Components
Desktop video tuner
multi system CCIR L/L’ and B/G
Preliminary specification
FI1216MF MK2
FEATURES
• Systems CCIR L/L’ and B/G
• True 5 V device (low power dissipation)
• Full frequency range from channel 2 (48.25 MHz) to
channel 69 (855.25 MHz)
• PLL controlled tuning
• True-synchronous vision IF demodulator (PLL)
• Demodulated video output, AF sound output, second
sound IF output
• I²C-bus control of tuning, address selection, AFC status
information
• Complies with European regulations on radiation, signal
handling and immunity (“CENELEC 55020, 55013”)
• Small horizontally mounted metal housing.
DESCRIPTION
The FI1200MK2 family of front ends are designed to meet
a wide range of RF applications in the PC Multi-Media
environment.
The FI1216MF MK2 type are available with a single 75 Ω
input for TV reception. The input connector is available in
either standard phono (female socket) or IEC (female
socket).
The tuning and bandswitching are performed through the
built-in digitally controlled I²C-bus. All front ends meet the
input immunity and radiation requirements of CENELEC.
The FI1216MF MK2 consists of a tuner section and an IF
section, which are all designed on a single PCB. The
front-end is assembled in a metal housing made of a
rectangular tin plated steel frame with front and rear covers
which have soldered contacts to the frame. A single phono
or IEC aerial socket is mounted on one side of the frame.
All other connections are made via pins at the bottom.
The tuner section is equipped with 3 tuned RF MOSFET
input stages, with a 3-band mixer-oscillator IC, containing
the oscillators, mixers and IF amplifier. Tuning and band
switching in the tuner section are done with a digital
programmable PLL tuning system. This enables tuning
with step-size programmable between 31.25, 50.0 or
62.5 kHz. A DC-DC converter is built around the PLL
synthesizer IC to provide the tuning voltage, thus making
the FI1216MF MK2 front-end a true 5 V device.
The IF section uses a true-synchronous vision IF
demodulator (PLL) with an intercarrier SAW filter in front of
it. The analog AFC voltage is fed to the 5-level A/D
converter in the PLL tuning IC, so that the AFC status can
be read via the I²C-bus.
ORDERING INFORMATION
TYPE
FI1216MF MK2/HM/PH
FI1216MF MK2/HM/IEC
DESCRIPTION
standard phono
IEC
CATALOGUE NUMBERS
3139 147 13571
3139 147 13581
MARKING
The following items of information are printed on a sticker
that is on the top cover of the tuner:
• Type number
• Code number
• Origin letter of factory
• Change code
• Year and week code.
1996 Jul 09
2