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參數資料
| 型號： | TDA9803T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 接收器 |
| 英文描述： | VIDEO DISCRIMINATOR, PDSO20 |
| 封裝： | 7.50 MM, PLASTIC, MS-013AC, SOT-163-1, SOP-20 |
| 文件頁數： | 2/21頁 |
| 文件大?。?/td> | 165K |
| 代理商： | TDA9803T |
November 1992
10
Philips Semiconductors
Preliminary specication
Multistandard VIF-PLL demodulator
TDA9803
Notes
1. Typical values of video and sound parameters are decreased at VP = 4.5 V.
2. The input voltage for negative modulation has to be V8 > 1.5 V, or pin 8 open-circuit.
3. Loop bandwidth BL = 60 kHz (natural frequency fn = 15 kHz; damping factor d = 2 calculated with grey level and FPLL
input signal level).
Resonance circuit of VCO: Qo > 50; Cext = 8.2 pF; Cint ≈ 8.5 pF (loop voltage about 2.7 V).
4. The oscillator drift is related to the picture carrier frequency (at external temperature-compensated LC-circuit).
5. Vi IF = 10 mV (RMS value); f = 1 MHz (VCO frequency offset related to picture carrier frequency); white picture video
modulation.
6. Vi IF for 0.9 V CVBS (peaktopeak value) at composite video output pin 13; PLL is still locked.
7. Transformer at IF input (Fig.3). The C/N ratio at IF input for ‘lock
in’ is defined as the vision IF input signal (sync level,
RMS value) in relation to a superimposed, 5 MHz band
limited white noise signal (RMS value); video modulation:
white picture.
8. Offset current measured between pin 6 and half of supply voltage (V = 2.5 V) under the following conditions: no input
signal at IF input (pins 1 and 2) and IF
amplifier gain at minimum (V19 = VP), pin 4 (phase adjust) opencircuit.
Tuner AGC (pin 12)
Vi
IF input signal for minimum starting
point of tuner take over (RMS value)
input at pins 1 and 2;
RTOP =22k
5mV
IF input signal for maximum starting
point of tuner take over (RMS value)
input at pins 1 and 2;
RTOP =0
50
mV
V12
allowable voltage
from external source
13.2
V
saturation voltage
I12 = 1.7 mA
0.2
V
V12
variation of take over point by
temperature
T = 0 to +50 °C
13dB
I12
sink current
see Fig.4
no tuner gain reduction
0.1
0.3
A
maximum tuner gain
reduction
1.7
2.0
2.6
mA
G
IF
IF slip by automatic gain control
tuner gain current from
20 to 80%
68dB
AFC circuit (pin 15)
see Fig.8 and note 15
S
control steepness
l15/f
see note 16
0.6
0.72
0.84
A/kHz
f
IF
frequency variation by temperature
T = 0 to +70 °C;
see note 4
±1300
106
V15
output voltage upper limit
see Fig.8
VP 0.5 VP 0.3
V
output voltage lower limit
0.3
0.5
V
I15
output current source
160
200
240
A
output current sink
160
200
240
A
I
15
residual video modulation current
(peak
topeak value)
B/G and L
20
30
A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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| TDA9804 | AUDIO/VIDEO DEMODULATOR, PDIP20 |
| TDA9808N | AUDIO/VIDEO DEMODULATOR, PDIP20 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TDA9806 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard VIF-PLL and FM-PLL demodulator |
| TDA9808 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single standard VIF-PLL with QSS-IF and FM-PLL demodulator |
| TDA9808T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single standard VIF-PLL with QSS-IF and FM-PLL demodulator |
| TDA9809 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single standard multimedia IF-PLL and FM radio demodulator |
| TDA9809M | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single standard multimedia IF-PLL and FM radio demodulator |
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