TDA2540 Datasheet PDF - ST Microelectronics
| Part Number | TDA2540 | |
| Description | IF AMPLIFIER WITH DEMODULATOR AND AFC | |
| Manufacturers | ST Microelectronics | |
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TDA2540
TDA2541
IF AMPLIFIER WITH DEMODULATOR AND AFC
. SUPPLY VOLTAGE : 12V TYP
. SUPPLY CURRENT : 50mA TYP
. I.F. INPUT VOLTAGE SENSITIVITY AT
F = 38.9MHz : 85µVRMS TYP
. VIDEO OUTPUT VOLTAGE (white at 10% of
top synchro) : 2.7VPP TYP
. I.F. VOLTAGE GAIN CONTROL RANGE :
64dB TYP
. SIGNAL TO NOISE RATIO AT VI = 10mV :
58dB TYP
. A.F.C. OUTPUT VOLTAGE SWING FOR
∆f = 100kHz : 10V TYP
DESCRIPTION
The TDA2540 and 2541 are IF amplifier and A.M.
demodulator circuits for colour and black and white
television receivers using PNP or NPN tuners. They
are intended for reception of negative or positive
modulation CCIR standard.
They incorporate the following functions :
. Gain controlled amplifier
. Synchronous demodulator
. White spot inverter
. Video preamplifier with noise protection
. Switchable AFC
. AGC with noise gating
. Tuner AGC output (NPN tuner for 2540)-(PNP
tuner for 2541)
. VCR switch for video output inhibition (VCR
play back)
PIN CONNECTIONS
DIP16
(Plastic Package)
ORDER CODE : TDA2540-TDA2541
IF INPUT
DECOUPLING CAPACITOR
TUNER AGC TAKE-OVER ADJUST
TUNER AGC OUTPUT
AFC OUTPUT
AFC SWITCH
AFC DEMODULATOR L.C. NETWORK
REFERENCE L.C. NETWORK
1
2
3
4
5
6
7
8
16 IF INPUT
15 DECOUPLING CAPACITOR
14 AGC CAPACITOR
13 GROUND
12 VIDEO OUTPUT
11 VCC
10 AFC DEMODULATOR L.C. NETWORK
9 REFERENCE L.C. NETWORK
August 1992
1/7
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Figure 4 : AFC Voltage versus Frequency V5-13
TDA2540 - TDA2541
Figure 5 : AFC Voltage versus Frequency V5-13
Figure 6 : Signal/Noise Ratio versus Input
Voltage V1-16
Figure 7 : AGC Tuner Current Curve
TDA2540
TDA2541
5/7
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for TDA2540 electronic component. |
| Information | Total 7 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ TDA2540.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| TDA2540 | The function is IF AMPLIFIER WITH DEMODULATOR AND AFC. ST Microelectronics | |
| TDA2541 | The function is IF AMPLIFIER WITH DEMODULATOR AND AFC. ST Microelectronics | |
| TDA2542 | The function is IF Amplifier with Demodulator and AFC for Positive Modulation Standard. ST Microelectronics | |
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