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參數(shù)資料
| 型號(hào)： | TDA9801T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 接收器 |
| 英文描述： | Single standard VIF-PLL demodulator and FM-PLL detector |
| 中文描述： | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO20 |
| 封裝： | PLASTIC, SOT-163-1, SO-20 |
| 文件頁(yè)數(shù)： | 14/32頁(yè) |
| 文件大?。?/td> | 152K |
| 代理商： | TDA9801T |
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1999 Aug 26
14
Philips Semiconductors
Product specification
Single standard VIF-PLL demodulator
and FM-PLL detector
TDA9801
10. Measurements taken with SAW filter G1962; VSB modulation; f
video
> 0.5 MHz; loop bandwidth BL = 60 kHz.
11. The 7 dB buffer amplifier gain accounts for 1 dB loss in the sound trap. The buffer output signal is typical 2 V (p-p).
If no sound trap is applied a resistor of 330
must be connected between pins VSO and VI.
12. The leakage current of C
AGC
should not exceed 1
μ
A. Larger currents will increase the tilt.
13. S/N is the ratio of the black-to-white amplitude to the black level noise voltage (RMS value) at pin CVBS.
B = 5 MHz weighted in accordance with “CCIR 567”at a source impedance of 50
.
14. The intermodulation figures are defined:
a)
α
IM(0.92/1.1)
value at 0.92 (or 1.1) MHz referenced to black or white signal
b)
α
IM(2.76/3.3
) value at 2.76 (or 3.3) MHz referenced to colour carrier.
15. To match the AFC output signal to different tuning systems a current source output is provided (see Fig.8).
16. The no mute state is also valid when pin MUTE is not connected.
17. The input signal is provided by an external generator with 50
source impedance, AC-coupled with a 10 nF
capacitor, f
mod
= 1 kHz and 27 kHz (54% FM deviation) of audio reference. A VIF input signal is not permitted.
Pin AGC has to be connected to the supply voltage. Measurements are taken at 50
μ
s de-emphasis (75
μ
s at the
M standard).
18. To allow a higher frequency deviation, the value of resistor R3 on pin DAF (see Fig.13) has to be increased.
However, the AF output signal must not exceed 0.5 V (nominal value) for THD = 0.2%. R3 = 4.7 k
provides
6 dB
amplification.
19. The leakage current of the 2.2
μ
F decoupling capacitor should not exceed 100 nA.
20. For all S/N measurements the used vision IF modulator has to meet the following specifications:
a) Incidental phase modulation for black-to-white jump less than 0.5 degrees
b) AF performance, measured with the television demodulator AMF2 (audio output, weighted S/N ratio), better than
60 dB (deviation 27 kHz) for white picture video modulation.
21. Input signal according to B/G standard of Table 1:
a) Input: V
i(VIF)(rms)
= 10 mV, VSB modulation and 10% residual carrier
b) Reference: FM deviation = 27 kHz and measurements are taken at 50
μ
s de-emphasis.
Table 1
Input frequencies and carrier ratios
SYMBOL
DESCRIPTION
STANDARD
UNIT
B/G
M/N
M
f
PC
f
SC
PC/SC
picture carrier frequency
sound carrier frequency
picture-to-sound carrier ratio
38.9
33.4
13
45.75
41.25
7
58.75
54.25
7
MHz
MHz
dB
α
IM 0.92 1.1
)
20
V
at 4.4 (3.58) MHz
V
o
at 0.92 (1.1) MHz
-------------------------------------------------------
3.6 dB
+
log
=
α
IM 2.76 3.3
)
20
V
at 4.4 (3.58) MHz
V
o
at 2.76 (3.3) MHz
-------------------------------------------------------
log
=
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA9801T/V1,118 | 功能描述:射頻無(wú)線雜項(xiàng) VIFPLL DEN/FMPLL DET RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel |
| TDA9801TD-T | 功能描述:射頻無(wú)線雜項(xiàng) VIFPLL DEN/FMPLL DET RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel |
| TDA9802 | 制造商:PHIL 功能描述: |
| TDA9802T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard VIF-PLL demodulator and FM-PLL detector |
| TDA9806 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard VIF-PLL and FM-PLL demodulator |
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