參數(shù)資料
型號(hào)： TDA9809M
廠商： NXP SEMICONDUCTORS
元件分類： 接收器
英文描述： Single standard multimedia IF-PLL and FM radio demodulator
中文描述： FM, AUDIO DEMODULATOR, PDSO20
封裝： 5.30 MM, PLASTIC, SSOP-20
文件頁(yè)數(shù)： 18/40頁(yè)
文件大?。?/td> 186K
代理商： TDA9809M
1998 Jan 08
18
Philips Semiconductors
Preliminary specification
Single standard multimedia IF-PLL and FM
radio demodulator
TDA9809M
14. The intercarrier output signal at pin 10 can be calculated with the following formula using the video output signal at
pin 13 (V
o(video)(p-p)
= 1.1 V typical) as a reference:
V
×
=
with
= correction term for RMS value,
= sound-to-picture carrier ratio at VIF input (pins 1 and 2) in dB,
6 dB = correction term of internal circuitry and
±
3 dB = tolerance of video output and intercarrier output amplitude
V
o(rms)
.
Example: SAW filter G1962 (sound shelf: 20 dB)
.
15. Input level for second IF from an external generator with 50
source impedance. AC-coupled with 10 nF capacitor,
f
mod
= 1 kHz, 27 kHz (54% FM deviation) of audio reference. A VIF/SIF input signal is not permitted. Pin 5 has to be
connected to the positive supply voltage for minimum IF gain. S/N and THD measurements are taken at 50
μ
s (75
μ
s
at M standard) de-emphasis (modulator pre-emphasis has to be activated). The FM demodulator steepness
V
o(AF)
/
f
AF
is positive.
a) Second IF input level 10 mV (RMS).
16. Measured with an FM deviation of 27 kHz, the typical AF output signal is 500 mV (RMS) (R
x
= 0
). By using
R
x
= 680
the AF output signal is attenuated by 6 dB (250 mV RMS). For handling a frequency deviation of more
than 53 kHz the AF output signal has to be reduced by using R
x
in order to avoid clipping (THD < 1.5%). For an
FM deviation up to 100 kHz an attenuation of 6 dB is recommended with R
x
= 680
.
17. The leakage current of the decoupling capacitor (2.2
μ
F) should not exceed 1
μ
A.
18. For all S/N measurements, the vision IF modulator used must meet the following specifications:
a) Incidental phase modulation for black-to-white jump less than 0.5 degrees.
b) QSS AF performance, measured with the television-demodulator AMF2 (audio output, weighted S/N ratio) better
than 60 dB (deviation
±
27 kHz) for 6 kHz sine wave black-to-white video modulation.
c) Picture-to-sound carrier ratio; PC/SC
1
= 13 dB; (transmitter).
19. The PC/SC
1
ratio at pins 1 and 2 is calculated as the addition of TV transmitter PC/SC
1
ratio and SAW filter PC/SC
1
ratio. This PC/SC
1
ratio is necessary to achieve the S/N
W
values as noted. A different PC/SC
1
ratio will change
these values.
20. Measurements taken with SAW filter G1962 (sound shelf: 20 dB) for vision and sound IF.
21. The RIF amplifier output (pin 10) must be connected to a multistandard application ceramic filter for
5.5, 6.0 and 10.7 MHz. This total load constitutes an impedance of 250
.
22. d
3
tested using two signals with frequencies of f
1
= 10.5 MHz and f
2
= 10.7 MHz, and with a level of V
i(4)(max)(rms)
for
each signal. d
3
is the ratio of the intermodulation product at 10.3 MHz to the output level of V
i(4)(max)(rms)
.
23. The control steepness of the radio AFC detector is dependent on the characteristic of the ceramic resonator, pin 18.
The figure given here will be obtained when applying a typical resonator of the type CDA 10.7 MC1-A (Murata).
The spread of the control steepness depends on the spread of the ceramic resonator characteristic (see Fig.11).
V
o rms
)
1.1 V p
p
–
)
2 2
----1
×
10
V
-------------------------------20
(
)
6 dB 3 dB
+
2 2
----1
V
V
i(PC)
------------- (dB)
V
V
i(PC)
-------------
27 dB
–
V
o(rms)
32 mV (typ.)
=
=
相關(guān)PDF資料
PDF描述
TDA9810 Multistandard VIF-PLL with QSS-IF and AM demodulator
TDA9810T Multistandard VIF-PLL with QSS-IF and AM demodulator
TDA9870A Digital TV Sound Processor DTVSP
TDA9962 12-bit, 3.0 V, 20 Msps analog-to-digital interface for CCD cameras
TDA9962HL 12-bit, 3.0 V, 20 Msps analog-to-digital interface for CCD cameras
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA9809M/V1,112 功能描述:射頻無(wú)線雜項(xiàng) MULTIMEDIA IF PLL 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
TDA9809M/V1,118 功能描述:射頻無(wú)線雜項(xiàng) MULTIMEDIA IF PLL 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
TDA9809MDB 功能描述:射頻無(wú)線雜項(xiàng) MULTIMEDIA IF PLL 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
TDA9809MDB-T 功能描述:射頻無(wú)線雜項(xiàng) MULTIMEDIA IF PLL 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
TDA9810 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard VIF-PLL with QSS-IF and AM demodulator
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*