Preliminary specification
File under BU Tuners, DC03
1997 Mar 13
Page 2
Philips ComponentsPreliminary specification
Desktop video & FM radio module
system B/G
FEATURES
• System B and G, and FM radio broadcast
• True 5 V device (low power dissipation)
• Full frequency range from channel 2
(48.25 MHz) to channel 69 (855.25 MHz)
• FM radio band coverage from 87.50 MHz to
108.00 MHz
• PLL controlled tuning
• Programmable PLL step size (31.25, 50 or 62.5 kHz)
• True-synchronous vision IF demodulator (PLL)
• Ultra linear FM PLL demodulator for FM radio broadcast
• 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
‘‘Amtsblatt 15/92”)
• Small horizontally mounted metal housing.
DESCRIPTION
The FM1216 front-end is designed to receive both TV and
FM stereo signals in the PC Multimedia environment. The
units are available with separate 75 Ω inputs for TV and
FM broadcast reception. The input connectors available
are either standard phono or IEC type (female for TV, male
for FM radio). The tuning, bandswitching and antenna
selection are made through the I2C-bus.
The front-end covers the TV bands from 48.25 MHz to
855.25 MHz. The FM band covers the standard
87.50 MHz to 108.00 MHz. An RDS decoder can be
connected to the AF-MPX output. The FM1216 meets the
input immunity and radiation requirements of CENELEC.
The FM1216 consists of a TV tuner, an FM radio tuner and
an IF section, 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. The two phono or
IEC antenna connectors (female for TV, male for FM
radio) are mounted on one side of the frame for the TV/FM
signal inputs. All other connections are made via pins at
the bottom.
(“CENELEC 55020, 55013’’
and
FM1216
In the FM radio mode, the level detector and AFT functions
are provide for the auto-search routines. The level detector
and AFT status can be read from the A/D bits in the
status-byte. The mute function is also provided to
suppress the audio output signal, if required.
The tuner AGC for both TV and FM radio operation, is
generated with a novel AGC detector which measures the
IF signal level directly at the tuner IF output pins. As
opposed to the conventional AGC detector, this new circuit
allows a higher take-over level and offers superior
immunity against tuner overload.
The demodulation of the TV sound and FM radio IF
(10.70 MHz) is done with a PLL demodulation circuit
contained in the IF IC. In the FM radio mode, the
multiplexed AF signal is then channelled to a stereo
decoder IC which extracts the left/right analog signals. The
multiplexed audio signal is also available at pin 25 to
support RDS or BTSC implementations. The 2
sound output is provided to connect external
(analog 2 carrier or digital) stereo processing.
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.
nd
IF TV
CATALOGUE
NUMBERS
The TV IF section uses an intercarrier SAW filter, followed
by a true-synchronous vision IF demodulator (PLL) IC. 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.
12supply voltage tuner section +5 V
SCL13I
SDA14I
AS15I
AF O/P right20FM radio right channel
AF O/P left21FM radio left channel
nd
IF O/P22second IF TV sound output
2
CVBS23Composite Video Baseband Signal (CVBS) output
V
S(IF)
24supply voltage IF section +5 V
AF O/P25AF sound output
−TH1, TH2, TH3 and TH4mounting tags (ground)
CHANNEL COVERAGE
BAND
FREQUENCY
(MHz)
FM radio band87.50 to 108.00
Low band48.25 to 170.00
Mid band170.00 to 450.00
High band450.00 to 855.25
2
C-bus serial clock
2
C-bus serial data
2
C-bus address select
1997 Mar 133
Page 4
Philips ComponentsPreliminary specification
Desktop video & FM radio module
system B/G
BLOCK DIAGRAM
2nd IF
FILTER
10.7 MHz
FILTER
AGC
DETECTOR
SAW
IF
V
VCO
PLL
VIF
DEMODULATOR
TRAP
FM
DEMODULATOR
FM-IF
10.7 MHz
DISCRIMINATOR
STEREO
DECODER
FILTER
10.7 MHz
FM1216
AF
(TV)
S(IF)
+5 V
V
CVBS
23
sound
output
2nd IF
AF-R AF-L
IF
MIXER - OSCILLATOR IC
HIGH BAND
OSC.
HIGH
MID
OSC.
MID BAND
LOW
OSC.
LOW BAND
VT
AFT
PLL
DC-DC
1112 13 14 152021222524
CCA505
AS
SDA
SCL
+5 V
VT
S( tuner)
V
monitor
Fig.1 Electrical block diagram.
handbook, full pagewidth
TV
antenna
FM
antenna
1997 Mar 134
Page 5
Philips ComponentsPreliminary specification
Desktop video & FM radio module
FM1216
system B/G
LIMITING VALUES
Limiting values under operational conditions
The tuner can be guaranteed to function properly under the following conditions.
SYMBOLPARAMETERPINMIN.TYP.MAX.UNIT
V
S
V
S(ripple)
I
S(tuner)
V
SCL
V
SDA
I
SDA
V
AS
V
AFright(FM)
Z
AFright(FM)
V
AFleft(FM)
Z
AFleft(FM)
Z
IF
Z
CVBS
t
L
V
S(IF)
I
S(IF)
Z
AF
supply voltage
peak-to-peak ripple voltage susceptibility
(at5V±5%); note 1
20 Hz to 100 kHz−−5mV
12
>100 kHz to 500 kHz−−10mV
supply current−−120mA
SCL bus input voltage13−0.3−+5.25V
SDA bus input voltage
SDA bus current (open collector)−1−+5mA
14
address select voltage; note 215−−+5.25V
FM right channel DC voltage
FM right channel load impedance parallel connected:
resistive value−50−kΩ
20
capacitive value−9−pF
FM left channel DC voltage
FM left channel load impedance:
resistive value−50−kΩ
21
capacitive value−9−pF
2nd IF sound output load impedance220.5−−kΩ
Composite Video Baseband Signal load impedance
CVBS load time constant−−100ns
IF supply voltage
IF supply current−−150mA
23
24
AF sound output load impedance parallel connected:
25resistive value5.0−−kΩ
capacitive value−−4nF
4.755.005.25V
−0.3−+5.25V
−1.0−V
−1.0−V
−75−Ω
4.755.05.25V
Notes
1. Sinusoidal ripple voltage superimposed on the 5 V supply voltage in the frequency range of 20 Hz to 500 kHz.
Criteria for TV interference >57 dB.
2. For detailed information about the address decoding, refer to Chapter “Application information”.
1997 Mar 135
Page 6
Philips ComponentsPreliminary specification
Desktop video & FM radio module
FM1216
system B/G
Environmental conditions
SYMBOLPARAMETERCONDITIONSMIN.TYP.MAX.UNIT
Non-operational conditions
T
amb
RHrelative humidity−−100%
g
B
g
S
Operational conditions
T
amb
RHrelative humidity−−95%
OVERALL PERFORMANCE
Conditional data
Unless otherwise specified, all electrical values for Chapter “Overall performance” apply at the following conditions.
ambient temperature25 ±5°C
RHrelative humidity60 ±15%
V
Z
Z
Z
t
pr
Z
S
CVBS
IF
AF
S(AE)
supply voltage (tuner and IF section)5 ±0.125V
video output load impedance (DC)75Ω
2nd IF sound output load impedance (DC)0.5kΩ
AF sound output load impedance100kΩ
pre-heating time (+5 V at pin 24)10minute
aerial source impedance (asymmetrical)75Ω
1997 Mar 136
Page 7
Philips ComponentsPreliminary specification
Desktop video & FM radio module
FM1216
system B/G
TUNER CHARACTERISTICS
For detailed information about the PLL programming, refer to Chapter “Application information”.
The desktop video tuner is guaranteed to function properly within the specified operational conditions, but a certain
deterioration of performance parameters may occur at the limits of the operational conditions.
Required data for test equipment to be used
EQUIPMENTPARAMETERVALUEUNIT
DC voltmeterinput impedance>1MΩ
Oscilloscopeinput impedance:
resistance>1MΩ
capacitance<15pF
Spectrum analyzerinput impedance50Ω
FET probeinput impedance:
resistance1MΩ
capacitance3.5pF
output impedance50Ω
voltage gain0dB
AC millivoltmeterinput impedance>100kΩ
1997 Mar 137
Page 8
Philips ComponentsPreliminary specification
Desktop video & FM radio module
system B/G
handbook, full pagewidth
IF
output
BU2
aerial
connector
V
T
V
S
SCL
SDA
IF
PROBE
OUT
11
1
/
TDA1308
2
12 13 14 15
240
kΩ
TP2 TP3
220
220
nF
nF
39
kΩ
563
2
240
kΩ
−
17
+
−
39
kΩ
+
84
1
/
TDA1308
2
+
+
µF
µF
FM1216
212010922 23 24 25
5 V
22
Ω
47
47
kΩ
47
1
kΩ
10
nF
kΩ
nF
3
1
33
µF
++
220
kΩ
47
µF
22
Ω
220
kΩ
47
µF
22
Ω
TEST JIG
CCA650
S1
15 kHz
LOW-PASS
FILTER
(1) BU4 loaded with 75 Ω.
(2) 50 µs de-emphasis.
SA = Spectrum Analyzer.
P = FET probe.
DA = Distortion Analyzer.
VAC = dual channel AC voltmeter (Zi= 600 Ω)
The minimum load impedance required at the CVBS output (pin 23) is 75 Ω (both AC and DC).
Fig.2 Typical test set up.
SA
BU6BU2BU4BU5BU8BU7
video
P
out
(1)
+5 V
10
nF
5
kΩ
(2)
DADA
1997 Mar 138
Page 9
Philips ComponentsPreliminary specification
Desktop video & FM radio module
system B/G
Definitions of test signals (see Fig.2)
TEST SIGNAL
A0: unmodulated vision
carrier
A1: RF B, G standard signal
with video modulation
B1: unmodulated sound
carrier B, G system
B2: FM modulated sound
carrier B, G system
B3: unmodulated sound
carrier B, G system
C1: FM modulated sound
carrier
C2: FM modulated sound
carrier
C3: FM modulated sound
carrier
FREQ.
(MHz)
480.2560 dBµV
480.2560 dBµV
485.75−13 dB w.r.t.
485.75−13 dB w.r.t.
478.75−13 dB w.r.t.
98.0060 dBµV1 kHz; modulation frequency
97.70
or 98.30
98.0060 dBµV1 kHz; modulation frequency
AMPLITUDE
(top sync)
A0 to A1
A0 to A1
A0 to A1
60 dBµV1kHz; modulation frequency
FM1216
MODULATION
VIDEOAUDIO
100% (rest carrier 10%)
2T pulse and bar
1 kHz; modulation frequency
deviation ±25 kHz;
50 µs pre-emphasis
FM band87.50−108.00MHz
low band48.25−168.25MHz
mid band175.25−447.25MHz
high band455.25−855.25MHz
margin:
for FM band3−− MHz
for low band1.5−− MHz
for mid/high band3−− MHz
image rejection (nominal gain to
10 dB gain reduction):
low band68−− dB
mid band<300 MHz66−− dB
mid band>300 MHz60−− dB
high band (channel 14 to 69)50−− dB
IF rejection (picture)60−− dB
1
⁄2 IF susceptibility:
low, mid band75−− dBµV
high band60−− dBµV
cross modulation:
in-channel65−− dBµV
in-band
low band (n ±2)78−− dBµV
mid band (n ±3)78−− dBµV
high band (n ±5)84−− dBµV
out of band−100−dBµV
breakthrough susceptibility:
channel 2 to 6960−− dBµV
oscillator voltage at all pins−−70dBµV
oscillators lock-in timecharge pump set logic HIGH −−150ms
the video signal-to-sound
40−− dB
interference ratio with the tuner
exposed to sound signals in the
audio frequency range
100 Hz to 10 kHz and sound
pressure levels up to 105 dB
(20 µPa)
audio S/N ratio40−− dB
electrostatic discharge (ESD)
note 12−− kV
on all pins
1997 Mar 1310
Page 11
Philips ComponentsPreliminary specification
Desktop video & FM radio module
FM1216
system B/G
SYMBOLPARAMETERCONDITIONSMIN.TYP.MAX.UNIT
FM radio characteristics
α26limiting sensitivity for (S+N)/Ntest signal C1−730 dBµV
α50test signal C3−3040dBµV
S/N ratio:test signal C1
mono at f = 22.5 kHz5558−dB
mono at f = 75 kHz6568−dB
stereotest signal C35563−dB
α
i(FM)
THDtotal harmonic distortion:test signal C3
FM image rejectiontest signal C15365−dB
effective selectivity S
frequency response:test signal C3; −3 dB points
lower −3 dB point−2040Hz
upper −3 dB point1418−kHz
AM suppressiontest signal C138−− dB
FM AF output level at
terminal 20/21 (RMS value):
monotest signal C1405774mV
stereotest signal C3120175230mV
stereo separationtest signal C3; 1 kHz2835−dB
stereo at 1 kHz−0.81.5%
during overmodulation at
f=±100 kHz
300
test signal C1 + C250−− dB
−1.53%
Note
1. All the pins of the desktop video tuner are protected against electrostatic discharge (ESD) up to 2 kV. The product is
classified in category B
(‘‘MIL-STD-883C”)
.
1997 Mar 1311
Page 12
Philips ComponentsPreliminary specification
Desktop video & FM radio module
FM1216
system B/G
Video and audio characteristics (see Fig.2)
PARAMETERTEST SIGNAL
CVBS characteristics:
video amplitude signal at pin 23A1 (peak-to-peak value)BU40.750.951.15V
DC level sync pulse at pin 23A1BU4−0.7−V
Video amplitude drop with respect to modulation
1 MHz at T
at 2 MHzA1BU4−1.5−+1.5dB
at 3 MHzA1BU4−2.5−+1.5dB
at 4 MHzA1BU4−4.0−+2.0dB
at 4.43 MHzA1BU4−4.0−+2.0dB
Sound carrier rejectionA1 (1 MHz) + B1BU440−− dB
Residual 40.40 MHz signal in video channel:
level of 1.5 MHz
Residual 77.8 MHz signal in video channelA1BU4−−80dBµV
Second IF sound output level at level of 5.5 MHzA1 (black) + B1BU584−− dBµV
Test on 2T pulse at T
2T pulse/bar responseA1BU4−2.8−+2.8%
2T pulse responseA1BU4−−+3.5%
CVBS S/N (unweighted)A1 + B1BU441−− dB
Gain limited sensitivity at 1 dB reduction
of video output
Maximum usable single input signalA1BU490−− dBµV
Audio characteristics:
AF output level measured via LP 200 kHz filter,
RMS detector, 50 µs de-emphasis
THD (Total Harmonic Distortion) measured
via LP 200 kHz filter, RMS detector,
50 µs de-emphasis
S/N measured via CCIR filter, peak
CCIR detector, 50 µs de-emphasis
AM suppression ratioA1 (black) + B2BU640−− dB
Aerial input level for S/N = 41 dBA1 (black) + B2BU6−−45dBµV
amb
=45°C:
amb
A1 + B3BU4−−68dBµV
=45°C:
A1BU4−−30dBµV
A1 + B2BU6250350450mV
A1 + B2BU6−−0.5%
A1 (full field colour bar)
+B1
TEST
POINT
BU638−− dB
MIN. TYP. MAX.UNIT
Digital AFC status
ADC word at I
1997 Mar 1312
2
C-bus during read operation
DIGITAL
READ-OUT
00−125
01−62.5
020
03+62.5
04+125
FREQUENCY
(kHz)
Page 13
Philips ComponentsPreliminary specification
Desktop video & FM radio module
FM1216
system B/G
APPLICATION INFORMATION
A detailed description of the I2C-bus specification, with applications, is given in brochure
use it’’
. This brochure may be ordered using the code number 9398 393 40011.
WRITE mode
BITS
BYTE
7
MSB
654321
Address byte11000MA1MA00A
Program divider byte 10n14n13n12n11n10n9n8A
Program divider byte 2n7n6n5n4n3n2n1n0A
Control information byte 11CPT2T1T0RSARSBOSA
Control information byte 2P7P6P5P4P3P2P1P0A
Note
1. A = Acknowledge.
A
DDRESS SELECTION
VS= +5 V (PLL supply voltage).
‘‘The I2C-bus and how to
0
LSB
(1)
A
MA1MA0ADDRESSVOLTAGE AT PIN 15 (see note 1)
00C00.0V
01C20.2VS to 0.3V
10C40.4VS to 0.6V
11C60.9VS to 1.0V
to 0.1V
S
S
S
S
S
Note
1. If the AS pin is left floating, the internal bias will automatically set the address to C2.
P
ROGRAMMABLE DIVIDER SETTINGS (BYTES 1 AND 2)
Divider ratio:
N=16×{f
f
=N⁄16(MHz).
osc
RF(pc)
+ f
}, where (pc) is picture carrier and fRF and fIF are expressed in MHz
CP = 1, for fast tuning
CP = 0, for moderate speed tuning with slightly better residual oscillator FM.
It is recommended to set CP = 1 at all times in the TV mode. In the FM radio mode, set CP = 1 only during the search
tuning. Once the wanted channel is obtained, set CP = 0 to get the best signal-to-noise ratio.
Test mode settings:
T2 = T1 = 0; T0 = 1, for normal operation.
PLL disabling:
OS = 0, for normal operation
OS = 1, for switching the charge pump to the high impedance state. IDC output voltage is LOW.
Ratio select bits
RSARSBSTEP SIZE
X050 kHz (for FM band)
0131.25 kHz (for slow picture search)
1162.5 kHz (for normal picture search)
ORTS BYTE
P
FUNCTION
TV/FM bandswitching
FM band10101
Low band10100
Mid band10010
High band00110
TV mode
Power down mode; see note 10001
System B, G negative mode0000
FM radio mode
AFC; see note 20101
R
; see note 30100
IF
Mono0110
Mute1100
Notes
1. If the TV function is not required, the tuner can be switched to power-down mode. In this mode the tuner reduces the
current consumption by up to 100 mA.
2. By this setting the FM radio AFC status can be read from the A/D bits in the status byte.
3. By this setting the RF input level can be read from the A/D bits in the status byte.
The in-lock can be read by setting the R/W bit to 1.
FM1216
BITS
BYTE
7
MSB
654321
0
LSB
(5)
A
Address byte11000MA1MA01A
Status bytePOR
(1)
FL
(2)
(3)
I2
(3)
I1
(3)
I0
A2
(4)
A1
(4)
A0
(4)
A
Notes
1. POR = Power On Reset. POR is internally set to 1 in case V
drops below 3 V. The POR bit is reset when an end of
S
data is detected by the PLL IC.
2. FL = In-lock flag; FL = 1: loop is phase-locked. The loop must be phase-locked during at least 8 periods of the internal
reference frequency (either 7.8125 kHz, 3.90625 kHz or 6.25 kHz) before the FL flag is internally set to 1.
3. I2, I1 and I0 = digital information for I/O ports P2, P1 and P0 respectively.
4. A2, A1 and A0 = built-in 5-level A/D converter on the internal I/O port P6 (see Table “Digital AFC status”).
5. A = Acknowledge.
T
ELEGRAM EXAMPLES (READ MODE)
Start - Adb - Ack - STB - Ack - STB - - Stop (no Ack from processor = End-of-data).
Start - Adb - Ack - STB - - Stop (no Ack from processor = End-of-data).
Where:
STB = Status byte.
1997 Mar 1315
Page 16
Philips ComponentsPreliminary specification
Desktop video & FM radio module
system B/G
handbook, halfpage
R1
R2
PLL IC
V
CC
R3
100 Ω
R4
100 Ω
R5
100 Ω
C1
56 pF
C2
22 pF
C3
22 pF
15
AS
14
SDA
13
SCL
CCA507
FM1216
Video buffer
A video buffer is built into the video module to enable the
unit to drive a 75 Ω load directly.
2
C-bus load
I
The FM1216 contains a series resistor (R = 100 Ω) in the
SCL and SDA lines. Both lines also have a capacitive load
of typical 22 pF (see Fig.3).
video S/N
(dB)
70
50
30
10
20406080100
handbook, full pagewidth
Fig.3 I
2
C-bus load.
CCA651
120
RF input level (dBµV)
Fig.4 Typical video signal-to-noise ratio versus RF input level.
1997 Mar 1316
Page 17
Philips ComponentsPreliminary specification
Desktop video & FM radio module
system B/G
MECHANICAL DATA
handbook, full pagewidth
(1)
78.4
2.5
2
5.1
7.9
14.74
59.2
0.5
FM1216
8.1
±0.3
(1)
∅8.35
STANDARD PHONO CONNECTOR
14.4
±0.2
∅11
(2)
∅9.5
IEC CONNECTOR TYPE
TH 1
TH4
11 12 13 14 15
0.64 × 0.64
89.2
Dimensions in mm.
(1) Standard phono socket female 75 Ω.
(2) Alternative IEC connectors (female for TV/male for FM radio).
212022
4.445
Fig.5 Mechanical outline FM-versions.
1997 Mar 1317
23 24
TH2
TH3
25
13.5 max
2.6
34.734.7
29.2
10.85
CCA649
Page 18
Philips ComponentsPreliminary specification
Desktop video & FM radio module
system B/G
Aerial connections
Standard-phono socket female 75 Ωor IEC (female for TV,
male for FM radio).
Solderability
The solderability of pins and mounting tags when tested
initially and after 16 hours steam ageing in accordance
with
‘‘IEC 68-2-20’’
235 ±5 °C for 2 ±5 s), results in a wetted area of 95%.
No de-wetting will occur when soldered at
260 ±5 ° C for 5 ±0.5 s.
Resistance to soldering heat
The product will not be damaged when tested in
accordance with
(solder bath 260 ±5 °C for 5 ±1 s).
, test Ta, method 1 (solder bath
‘‘IEC 68-2-20’’
, test Tb, method 1A
FM1216
Mass
Approximately 50 g.
Robustness of pins
The pins will not be damaged when tested in accordance
with
‘‘IEC 68-2-21’’
• Test Ua1, tensile of 20 N in axial direction
• Test Ua2, thrust of 4 N in axial direction
• Test Ua2, thrust of 2 N in axial direction.
Punching pattern of chassis PCB
Field rejects are often related to broken tag joints.
Therefore, the following punching pattern is recommended
(see Fig.6).
Objective specificationThis data sheet contains target or goal specifications for product development.
Preliminary specificationThis data sheet contains preliminary data; supplementary data may be published later.
Product specificationThis data sheet contains final product specifications.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
2
PURCHASE OF PHILIPS I
C COMPONENTS
2
Purchase of Philips I
components in the I2C system provided the system conforms to the I2C specification defined by
Philips. This specification can be ordered using the code 9398 393 40011.
C components conveys a license under the Philips’ I2C patent to use the
1997 Mar 1322
Page 23
Philips ComponentsPreliminary specification
Desktop video & FM radio module
system B/G
FM1216
NOTES
1997 Mar 1323
Page 24
Philips Components – a worldwide company
Argentina: Ierod, BUENOS AIRES,
Tel. (01) 786 7635, Fax. (01) 786 9397.
Australia: Philips Components Pty Ltd, NORTH RYDE,
For all other countries apply to: Philips Components,
Marketing Communications, P.O. Box 218, 5600 MD EINDHOVEN,
The Netherlands, Fax. +31-40-2724 547.
All rights are reserved. Reproduction in whole or in part is prohibited without the
prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or
contract, is believed to be accurate and reliable and may be changed without notice.
No liability will be accepted by the publisher for any consequence of its use. Publication
thereof does not convey nor imply any license under patent- or other industrial or
intellectual property rights.
Printed in The Netherlands
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