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Teilenummer | FM1236 |
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Beschreibung | Desktop video & FM radio module system M/ N | |
Hersteller | NXP Semiconductors | |
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Gesamt 20 Seiten BU TUNERS
DATA SHEET
FM1236
Desktop video & FM radio module
system M, N
Preliminary specification
File under BU Tuners, DC03
1997 Feb 03
Philips Components
Desktop video & FM radio module
system M, N
Preliminary specification
FM1236
Environmental conditions
SYMBOL
PARAMETER
Non-operational conditions
Tamb
RH
ambient temperature
relative humidity
gB bump acceleration
gS shock acceleration
vibration amplitude
Operational conditions
Tamb
RH
ambient temperature
relative humidity
CONDITIONS
MIN.
TYP.
MAX.
UNIT
25 g
50 g
10 to 55 Hz
−25 −
+85 °C
− − 100 %
− − 245 m/s2
− − 490 m/s2
− 0.35 − mm
−10 −
−−
+60 °C
95 %
OVERALL PERFORMANCE
Conditional data
Unless otherwise specified, all electrical values for Chapter “Overall performance” apply at the following conditions.
SYMBOL
Tamb
RH
VS
ZCVBS
ZIF
ZAF
tpr
ZS(AE)
PARAMETER
ambient temperature
relative humidity
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)
aerial source impedance (asymmetrical)
VALUE
25 ±5
60 ±15
5 ±0.125
75
0.5
100
10
75
UNIT
°C
%
V
Ω
kΩ
kΩ
minute
Ω
1997 Feb 03
6
6 Page Philips Components
Desktop video & FM radio module
system M, N
Preliminary specification
FM1236
Video and audio characteristics (see Fig.2)
PARAMETER
TEST SIGNAL
CVBS characteristics:
video amplitude signal at pin 23
DC level sync pulse at pin 23
Video amplitude drop with respect to modulation
1 MHz at Tamb = 45 °C:
at 2 MHz
at 3 MHz
at 3.58 MHz
Sound carrier rejection
Residual 47.25 MHz signal in video channel:
level of 1.5 MHz
Residual 91.5 MHz signal in video channel
Second IF sound output level at level of 4.5 MHz
Test on 2T pulse at Tamb = 45 °C:
2T pulse/bar response
2T pulse response
CVBS S/N (unweighted)
Gain limited sensitivity at 1 dB reduction
of video output
Maximum usable single input signal
Audio characteristics:
AF output level measured via LP 200 kHz filter,
RMS detector, 75 µs de-emphasis
THD (Total Harmonic Distortion) measured
via LP 200 kHz filter, RMS detector,
75 µs de-emphasis
S/N measured via CCIR filter, peak
CCIR detector, 75 µs de-emphasis
AM suppression ratio
Aerial input level for S/N = 41 dB
A1 (peak-to-peak value)
A1
A1
A1
A1
A1 (1 MHz) + B1
A1 + B3
A1
A1 (black) + B1
A1
A1
A1 + B1
A1
A1
A1 + B2
A1 + B2
A1 (full field colour bar)
+ B1
A1 (black) + B2
A1 (black) + B2
TEST
POINT
MIN.
TYP.
MAX.
UNIT
BU4 0.75 0.95 1.15 V
BU4 −
0.35 −
V
BU4 −1.5 −
BU4 −2.5 −
BU4 −4.0 −
BU4 40 −
BU4 −
−
BU4 −
−
BU5 84 −
+1.0 dB
+1.5 dB
+2.0 dB
− dB
68 dBµV
80 dBµV
− dBµV
BU4 −2.5 −
BU4 − −
BU4 41 −
BU4 −
−
BU4 90 −
+2.5 %
+3.0 %
− dB
30 dBµV
− dBµV
BU6 0.21 0.31 0.41 V
BU6 − − 0.5 %
BU6 38 −
BU6 40 −
BU6 − −
− dB
− dB
45 dBµV
Digital AFC status
ADC word at I2C-bus during read operation
DIGITAL
READ-OUT
00
01
02
03
04
FREQUENCY
(kHz)
−125
−62.5
0
+62.5
+125
1997 Feb 03
12
12 Page | ||
Seiten | Gesamt 20 Seiten | |
PDF Download | [ FM1236 Schematic.PDF ] |
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