FI1216MK2 Datasheet, PDF (2/20 Pages) NXP Semiconductors – Desktop video tuner system CCIR B/G

Philips Components
Desktop video tuner
system CCIR B/G
Preliminary specification
FI1216MK2
FEATURES
• System CCIR 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’’ and
‘‘Amtsblatt 15/92”)
• Small horizontally mounted metal housing.
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
DESCRIPTION
CATALOGUE
NUMBERS
FI1216MK2/HM/PH standard phono 3139 147 13291
FI1216MK2/HM/IEC IEC
3139 147 13301
DESCRIPTION
The FI1200MK2 family consists of the following types
FI1216MK2, FI1246MK2, FI1256MK2. They are designed
to meet a wide range of RF applications in the PC
Multi-Media environment.
The FI1216MK2 types 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 of CENELEC.
The FI1216MK2 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 FI1216MK2 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.
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.
INTERMEDIATE FREQUENCIES
SYSTEM
Picture carrier
Colour
Sound 1
Sound 2
NICAM
FREQUENCY⁽¹⁾
(MHz)
PAL B/G
38.90
34.47
33.40
33.16
33.05
Note
1. The oscillator frequency is above the input signal
frequency.
CHANNEL COVERAGE
BAND
Low band
Mid band
High band
CHANNELS
48.25 to 170.00 MHz
170.00 to 450.00 MHz
450.00 to 855.25 MHz
1997 Mar 13
2