313914713411 [NXP]
Desktop video & FM radio module system M, N; 桌面视频和FM收音机模块系统， M，N
| 型号： | 313914713411 |
| 厂家： | 
NXP |
| 描述： | Desktop video & FM radio module system M, N |
| 文件： | 总20页 (文件大小：148K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
BU TUNERS
DATA SHEET
FM1236
Desktop video & FM radio module
system M, N
1997 Feb 03
Preliminary specification
File under BU Tuners, DC03
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
FEATURES
• System M and N, and FM radio broadcast
• True 5 V device (low power dissipation)
• Full frequency range from channel 2
(55.25 MHz) to channel 69 (801.25 MHz)
• FM band coverage from 76.0 MHz to 108.0 MHz
• PLL controlled tuning
the PLL tuning IC, so that the AFC status can be read via
the I2C-bus.
• Programmable PLL step size (31.25, 50 or 62.5 kHz)
• True-synchronous vision IF demodulator (PLL)
• Ultra linear FM PLL demodulator for FM broadcast
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.
• Demodulated video output, AF sound output, second
sound IF output
• I2C-bus control of tuning, address selection, AFC status
information
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 terminals. As
opposed to the conventional AGC detector, this new circuit
allows a higher take-over level and offers superior
immunity against tuner overload.
• Complies with FCC, DOC and JIS regulations on
radiation
• Small horizontally mounted metal housing.
The demodulation of the TV sound (4.5 MHz) and FM 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 2nd IF sound
output is provided to connect external (analog 2 carrier or
digital) stereo processing.
DESCRIPTION
The FM1236 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 F type. The tuning,
bandswitching and antenna selection are made through
the I2C bus.
The front-end covers the TV bands from 55.25 MHz to
801.25 MHz, inclusive of the Japanese TV bands from
91.25 MHz to 765.25 MHz. The FM band covers the
standard 87.50 MHz to 108.00 MHz and also the
Japanese FM band (76.00 MHz to 91.00 MHz). An RDS
decoder can be connected to the AF-MPX output. The
FM1236 meets the input immunity and radiation
requirements of the FCC, DOC and JIS.
ORDERING INFORMATION
CATALOGUE
TYPE
DESCRIPTION
NUMBERS
FM1236/HM/PH standard phono
3139 147 13411
3139 147 13421
FM1236/HM/F
F
The FM1236 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
F antenna connectors (female) are mounted on one side
of the frame for the TV/FM signal inputs. All other
connections are made via pins at the bottom.
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
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
• Year and week code.
1997 Feb 03
2
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
INTERMEDIATE FREQUENCIES
SYSTEM
FREQUENCY
(MHz)
45.75
42.17
41.25
10.70
Picture carrier
Colour
Sound
FM
CHANNEL COVERAGE
OFF-AIR CHANNELS
CABLE CHANNELS
BAND
FREQUENCY
(MHz)
FREQUENCY
CHANNEL
CHANNEL
(MHz)
FM band
−
76.00 to 108.00
55.25 to 83.25
−
−
Low band
Mid band
2 to 6
7 to 13
A-2 to G
109.25 to 157.25
163.25 to 169.25
217.25 to 451.25
457.25 to 469.26
175.25 to 211.25
H to I
J to ZZ
High band
14 to 69
471.25 to 801.25
AAA to BBB (+6 MHz)
PINNING
SYMBOL
PIN
DESCRIPTION
VT
11
12
13
14
15
20
21
22
23
24
25
tuning voltage (monitor)
VS(tuner)
SCL
supply voltage tuner section +5 V
I2C-bus serial clock
I2C-bus serial data
SDA
AS
I2C-bus address select
AF O/P right
AF O/P left
2nd IF O/P
CVBS
VS(IF)
FM right channel
FM left channel
second IF sound output
Composite Video Baseband Signal (CVBS) output
supply voltage IF section +5 V
AF sound output
AF O/P
−
TH1, TH2, mounting tags (ground)
TH3 and
TH4
1997 Feb 03
3
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
BLOCK DIAGRAM
a n d b o o k , f u l l p a g e w i d t h
AC05
1997 Feb 03
4
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
LIMITING VALUES
Limiting values under operational conditions
The tuner can be guaranteed to function properly under the following conditions.
SYMBOL
VS
PARAMETER
PIN
MIN.
4.75
TYP.
5.00
MAX.
5.25
UNIT
supply voltage
V
VS(ripple)
peak-to-peak ripple voltage susceptibility
(at 5 V ±5%); note 1:
12
20 Hz to 100 kHz
−
−
5
mV
mV
mA
V
>100 kHz to 500 kHz
−
−
10
IS(tuner)
VSCL
VSDA
ISDA
supply current
−
−
120
+5.25
+5.25
+5
SCL bus input voltage
SDA bus input voltage
SDA bus current (open collector)
address select voltage; note 2
13
14
15
−0.3
−0.3
−1
−
−
−
V
−
mA
V
VAS
−
+5.25
−
VAFright(FM) FM right channel DC voltage
−
1.0
V
ZAFright(FM) FM right channel load impedance parallel
connected:
20
resistive value
−
−
−
40
9
−
−
−
kΩ
pF
V
capacitive value
VAFleft(FM)
ZAFleft(FM)
FM left channel DC voltage
FM left channel load impedance:
resistive value
1.0
21
−
40
9
−
−
−
−
kΩ
pF
kΩ
Ω
capacitive value
2nd IF sound output load impedance
−
ZIF
22
23
0.5
−
−
ZCVBS
Composite Video Baseband Signal load
impedance
75
tL
CVBS load time constant
IF supply voltage
−
−
100
5.25
150
ns
V
VS(IF)
IS(IF)
ZAF
4.75
−
5.0
−
24
25
IF supply current
mA
AF sound output load impedance parallel
connected:
resistive value
5.0
−
−
−
kΩ
capacitive value
−
4
nF
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 Feb 03
5
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
Environmental conditions
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Non-operational conditions
Tamb
RH
gB
ambient temperature
relative humidity
−25
−
−
−
−
+85
°C
−
−
−
−
100
245
490
−
%
bump acceleration
shock acceleration
vibration amplitude
25 g
m/s2
m/s2
mm
gS
50 g
10 to 55 Hz
0.35
Operational conditions
Tamb
RH
ambient temperature
relative humidity
−10
−
−
+60
95
°C
−
%
OVERALL PERFORMANCE
Conditional data
Unless otherwise specified, all electrical values for Chapter “Overall performance” apply at the following conditions.
SYMBOL
PARAMETER
VALUE
25 ±5
UNIT
Tamb
RH
ambient temperature
relative humidity
°C
%
60 ±15
5 ±0.125
75
VS
supply voltage (tuner and IF section)
video output load impedance (DC)
2nd IF sound output load impedance (DC)
AF sound output load impedance
pre-heating time (+5 V at pin 24)
V
ZCVBS
ZIF
Ω
0.5
kΩ
kΩ
ZAF
tpr
100
10
minute
ZS(AE)
aerial source impedance (asymmetrical)
75
Ω
1997 Feb 03
6
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
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
EQUIPMENT
DC voltmeter
PARAMETER
VALUE
UNIT
input impedance
input impedance:
resistance
>1
MΩ
Oscilloscope
>1
MΩ
pF
Ω
capacitance
<15
50
Spectrum analyzer
FET probe
input impedance
input impedance:
resistance
1
MΩ
pF
Ω
capacitance
3.5
50
0
output impedance
voltage gain
dB
kΩ
AC millivoltmeter
input impedance
>100
1997 Feb 03
7
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
aerial
connector
TP2 TP3
10 11 12 13 14 15
9
20 21 22 23 24 25
IF
PROBE
OUT
IF
output
5 V
V
V
22
Ω
T
1
nF
220
nF
220
nF
S
BU2
3
kΩ
SCL
SDA
+
+
47
µF
47
kΩ
39
kΩ
39
kΩ
33
µF
10
nF
47
kΩ
1
µF
6
−
5
+
2
−
3
+
1
/ TDA1308
2
4
8
240
kΩ
240
kΩ
7
1
1
/ TDA1308
2
+
+
47
47
µF
µF
22
Ω
22
Ω
220
kΩ
220
kΩ
TEST JIG
BU7
BU8
BU5
BU4
BU2
+5 V
BU6
CCA506
video
out
P
S1
5
kΩ
15
nF
15 kHz
(2)
LOW-PASS
FILTER
(1)
SA
DA
DA
(1) BU4 loaded with 75 Ω.
(2) 75 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.
1997 Feb 03
8
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
Definitions of test signals (see Fig.2)
MODULATION
FREQ.
(MHz)
TEST SIGNAL
AMPLITUDE
VIDEO
AUDIO
A0: unmodulated vision
carrier
477.25 60 dBµV
A1: RF M, N standard signal
with video modulation
477.25 60 dBµV
100% (rest carrier 12.5%)
2T pulse and bar
(top sync)
B1: unmodulated sound
carrier M, N system
481.25 −7 dB w.r.t.
A0 to A1
B2: FM modulated sound
carrier M, N system
481.25 −7 dB w.r.t.
1 kHz; modulation frequency
deviation ±25 kHz;
A0 to A1
75 µs pre-emphasis
B3: unmodulated sound
carrier M, N system
483.25 −12 dB w.r.t.
A0 to A1
C1: FM modulated sound
carrier
98.00 60 dBµV
1 kHz; modulation frequency
deviation ±22.5 kHz
C2: FM modulated sound
carrier
97.70 60 dBµV
or 98.30
1 kHz; modulation frequency
deviation ±22.5 kHz
C3: FM modulated sound
carrier
98.00 60 dBµV
1 kHz; modulation frequency
deviation ±75 kHz;
10% pilot carrier (L = R);
75 µs pre-emphasis
Aerial input characteristics
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VSWR
reflection coefficient
referred to 75 Ω impedance
(worst case on or between picture
and sound carrier at maximum gain):
all channels in TV mode
FM (centre of channel)
−
−
5
−
−
−
5
4
−
VPSM
Vant
surge protection voltage
kV
antenna connection disturbance
voltage
1 to <54 MHz
10
34
50
dBµV
dBµV
dBµV
54 to <300 MHz
300 to <1000 MHz
1997 Feb 03
9
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
General characteristics
SYMBOL
PARAMETER
frequency range:
CONDITIONS
MIN.
TYP.
MAX.
UNIT
fb
FM band
low band
mid band
high band
76.00
−
−
−
−
108.00
157.25
451.25
801.25
MHz
MHz
MHz
MHz
55.25
163.25
457.25
∆fb
margin:
for FM band
3
−
−
−
−
−
−
MHz
MHz
MHz
for low band
1.5
3
for mid/high band
αi
image rejection (nominal gain to
10 dB gain reduction):
low band (channel 2 to 6)
mid band (channel 7 to 13)
high band (channel 14 to 69)
IF rejection (picture)
1⁄2 IF susceptibility:
E2 to E13
60
60
45
60
−
−
−
−
−
−
−
−
dB
dB
dB
dB
αIF
ZIF
75
60
−
−
−
−
dBµV
dBµV
E14 to E69
mx
cross modulation:
in-channel
65
−
−
dBµV
in-band
low band (n ±2)
78
78
84
−
−
−
−
−
−
−
−
dBµV
dBµV
dBµV
dBµV
mid band (n ±3)
high band (n ±5)
out of band
100
breakthrough susceptibility:
channel 2 to 69
60
−
−
−
−
−
dBµV
dBµV
ms
Vosc
tli
oscillator voltage at all pins
oscillators lock-in time
−
70
150
−
charge pump set logic HIGH −
40
αvs
the video signal-to-sound
interference ratio with the tuner
exposed to sound signals in the
audio frequency range
dB
100 Hz to 10 kHz and sound
pressure levels up to 105 dB
(20 µPa)
audio S/N ratio
40
2
−
−
−
−
dB
kV
VESD
electrostatic discharge (ESD)
on all pins
note 1
1997 Feb 03
10
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
FM radio characteristics
α26
α50
limiting sensitivity for (S+N)/N
test signal C1
−
−
5
30
dBµV
dBµV
test signal C3
test signal C1
30
40
S/N ratio:
mono at f = 22.5 kHz
mono at f = 75 kHz
stereo
55
65
55
53
50
58
68
63
60
−
−
−
−
−
−
dB
dB
dB
dB
dB
test signal C3
αi(FM)
FM image rejection
effective selectivity S300
frequency response:
lower −3 dB point
upper −3 dB point
AM suppression
test signal C1
test signal C1 + C2
test signal C3; −3 dB points
−
20
18
−
40
−
Hz
14
38
kHz
dB
test signal C1
−
FM AF output level at
terminal 20/21 (RMS value):
mono
test signal C1
40
57
74
230
−
mV
mV
dB
stereo
test signal C3
120
28
175
35
stereo separation
total harmonic distortion:
stereo at 1 kHz
test signal C3; 1 kHz
test signal C3
−
−
0.8
1.5
1.5
3
%
%
during overmodulation at
f = ±100 kHz
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 Feb 03
11
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
Video and audio characteristics (see Fig.2)
TEST
POINT
PARAMETER
TEST SIGNAL
MIN. TYP. MAX. UNIT
CVBS characteristics:
video amplitude signal at pin 23
A1 (peak-to-peak value) BU4
0.75 0.95 1.15
V
V
DC level sync pulse at pin 23
A1
BU4
−
0.35
−
Video amplitude drop with respect to modulation
1 MHz at Tamb = 45 °C:
at 2 MHz
A1
BU4
BU4
BU4
BU4
BU4
−1.5
−2.5
−4.0
40
−
−
−
−
−
+1.0 dB
+1.5 dB
+2.0 dB
at 3 MHz
A1
at 3.58 MHz
A1
Sound carrier rejection
A1 (1 MHz) + B1
A1 + B3
−
dB
Residual 47.25 MHz signal in video channel:
level of 1.5 MHz
−
68
dBµV
Residual 91.5 MHz signal in video channel
A1
BU4
BU5
−
−
−
80
dBµV
dBµV
Second IF sound output level at level of 4.5 MHz A1 (black) + B1
84
−
Test on 2T pulse at Tamb = 45 °C:
2T pulse/bar response
2T pulse response
A1
BU4
BU4
BU4
BU4
−2.5
−
−
−
−
−
+2.5
+3.0
−
%
A1
%
CVBS S/N (unweighted)
A1 + B1
A1
41
−
dB
Gain limited sensitivity at 1 dB reduction
of video output
30
dBµV
Maximum usable single input signal
Audio characteristics:
A1
BU4
90
−
−
dBµV
AF output level measured via LP 200 kHz filter, A1 + B2
RMS detector, 75 µs de-emphasis
BU6
BU6
0.21 0.31 0.41
V
THD (Total Harmonic Distortion) measured
via LP 200 kHz filter, RMS detector,
75 µs de-emphasis
A1 + B2
−
−
−
0.5
%
S/N measured via CCIR filter, peak
CCIR detector, 75 µs de-emphasis
A1 (full field colour bar)
+ B1
BU6
38
−
dB
AM suppression ratio
A1 (black) + B2
A1 (black) + B2
BU6
BU6
40
−
−
−
dB
Aerial input level for S/N = 41 dB
−
45
dBµV
Digital AFC status
ADC word at I2C-bus during read operation
DIGITAL
READ-OUT
FREQUENCY
(kHz)
00
01
02
03
04
−125
−62.5
0
+62.5
+125
1997 Feb 03
12
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
APPLICATION INFORMATION
A detailed description of the I2C-bus specification, with applications, is given in brochure ‘‘The I2C-bus and how to
use it’’. This brochure may be ordered using the code number 9398 393 40011.
WRITE mode
BITS
BYTE
7
MSB
0
LSB
6
5
4
3
2
1
A(1)
Address byte
1
0
1
0
0
0
MA1
n10
n2
MA0
n9
0
A
A
A
A
A
Program divider byte 1
Program divider byte 2
Control information byte 1
Control information byte 2
n14
n6
n13
n5
n12
n4
n11
n3
n8
n0
OS
P0
n7
1
n1
CP
P6
T2
P5
T1
P4
T0
P3
RSA
P2
RSB
P1
P7
Note
1. A = Acknowledge.
ADDRESS SELECTION
VS = +5 V (PLL supply voltage)
MA1
MA0
ADDRESS
VOLTAGE AT PIN 15 (see note 1)
0
0
1
1
0
1
0
1
C0
C2
C4
C6
0 to 0.1VS
0.2 to 0.3VS
0.4 to 0.6VS
0.9VS to VS
Note
1. If the AS pin is left floating, the internal bias will automatically set the address to C2.
PROGRAMMABLE DIVIDER SETTINGS (BYTES 1 AND 2)
Divider ratio:
N = 16 × {fRF(pc) + fIF(pc)}, where (pc) is picture carrier and fRF and fIF are expressed in MHz
fosc = N⁄16 (MHz).
N = (8192 × n13) + (4096 × n12) + (2048 × n11) + (1024 × n10) + (512 × n9) + (256 × n8) + (128 × n7) + (64 × n6) +
(32 × n5) + (16 × n4) + (8 × n3) + (4 × n2) + (2 × n1) + n0
CONTROL BYTE
Charge pump settings:
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.
1997 Feb 03
13
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
PLL disabling:
OS = 0, for normal operation
OS = 1, for switching the charge pump to the high impedance state.
Ratio select bits
RSA
RSB
STEP SIZE
X
0
1
0
1
1
50 kHz
31.25 kHz
62.5 kHz
PORTS BYTE
BIT
FUNCTION
P7
P6
P5
P4
P3
P2
P1
P0
TV/FM bandswitching
FM band
Low band
Mid band
High band
1
1
1
0
0
0
0
0
1
1
0
1
0
0
1
1
1
0
0
0
TV mode
Power down mode; see note 1
System M, N negative mode
0
0
0
0
0
0
1
0
FM radio mode
AFC; see note 2
RIF; see note 3
Mono
0
0
0
1
1
1
1
1
0
0
1
0
1
0
0
0
Mute
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.
1997 Feb 03
14
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
TELEGRAM EXAMPLES (WRITE MODE)
Start - Adb - Ack - Db1 - Ack - Db2 - Ack - Cb - Ack - Pb - Ack - Stop.
Start - Adb - Ack - Cb - Ack - Pb - Ack - Db1 - Ack - Db2 - Ack - Stop.
Start - Adb - Ack - Db1 - Ack - Db2 - Ack - Cb - Ack - Stop.
Start - Adb - Ack - Db1 - Ack - Db2 - Ack - Stop.
Where:
Start = start condition
Adb = address byte
Ack = acknowledge
Db1 = divider byte 1
Db2 = divider byte 2
Cb = control byte
Pb = ports byte
Stop = stop condition.
READ mode
The in-lock can be read by setting the R/W bit to 1.
BITS
BYTE
7
0
6
5
4
3
2
1
A(5)
LSB
MSB
Address byte
Status byte
1
1
FL(2)
0
I2(3)
0
I1(3)
0
I0(3)
MA1
A2(4)
MA0
A1(4)
1
A0(4)
A
A
POR(1)
Notes
1. POR = Power On Reset. POR is internally set to 1 in case VS drops below 3 V. The POR bit is reset when an end of
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.
TELEGRAM 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 Feb 03
15
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
Video buffer
A video buffer is built into the video module to enable the
unit to drive a 75 Ω load directly.
handbook, halfpage
V
CC
I2C-bus load
R1
The FM1236 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).
R3
15
AS
100 Ω
C1
56 pF
R2
C2
22 pF
R4
14
13
SDA
SCL
100 Ω
R5
100 Ω
C3
22 pF
PLL IC
CCA507
Fig.3 I2C-bus load.
1997 Feb 03
16
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
MECHANICAL DATA
8.1
±0.3
(1)
(1)
8.35
STANDARD PHONO CONNECTOR
78.4
17.5
±0.3
2.5
2
(2)
0.5
5.1
7.9
12.3
4
14.7
F CONNECTOR
59.2
13.5 max
TH 1
TH2
34.7
34.7
29.2
2.6
10.85
TH4
TH3
9 1011 12 13 14 15
20 21 22 23 24 25
4.445
CCA508
0.64 × 0.64
89.2
Dimensions in mm.
(1) Standard phono socket female 75 Ω.
(2) Alternative IEC connection.
Fig.4 Mechanical outline FM-versions.
17
1997 Feb 03
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
Aerial connections
Mass
Standard-phono socket female 75 Ω or F (female).
Approximately 50 g.
Solderability
Robustness of pins
The solderability of pins and mounting tags when tested
initially and after 16 hours steam ageing in accordance
with ‘‘IEC 68-2-20’’, test Ta, method 1 (solder bath
235 ±5 °C for 2 ±5 s), results in a wetted area of 95%.
No de-wetting will occur when soldered at
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.
260 ±5 ° C for 5 ±0.5 s.
Punching pattern of chassis PCB
Resistance to soldering heat
Field rejects are often related to broken tag joints.
Therefore, the following punching pattern is recommended
(see Fig.5).
The product will not be damaged when tested in
accordance with ‘‘IEC 68-2-20’’, test Tb, method 1A
(solder bath 260 ±5 °C for 5 ±1 s).
78.4
4.6
+0.1
0.9
0
3.5
2
34.7
unit
contour
2.1
1.1
2.6
CCA509
14.7
4.445
59.2
Dimensions in mm.
Fig.5 Punching pattern seen from solder side.
1997 Feb 03
18
Philips Components
Preliminary specification
Desktop video & FM radio module
system M, N
FM1236
DEFINITIONS
Data sheet status
Objective specification
Preliminary specification
Product specification
This data sheet contains target or goal specifications for product development.
This data sheet contains preliminary data; supplementary data may be published later.
This 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.
PURCHASE OF PHILIPS I2C COMPONENTS
Purchase of Philips I2C components conveys a license under the Philips’ I2C patent to use the
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.
1997 Feb 03
19
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COD09
© Philips Electronics N.V. 1997
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Components Division, PULAU PINANG,
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All rights are reserved. Reproduction in whole or in part is prohibited without the
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