- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98205 > TDA9887TS/V3 (NXP SEMICONDUCTORS) AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 PDF資料下載
參數(shù)資料
| 型號： | TDA9887TS/V3 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| 封裝： | 5.30 MM, PLASTIC, MO-150, SOT-340-1, SSOP-24 |
| 文件頁數(shù)： | 29/56頁 |
| 文件大小： | 230K |
| 代理商： | TDA9887TS/V3 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁當(dāng)前第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁
2002 Mar 05
35
Philips Semiconductors
Product specication
I2C-bus controlled multistandard alignment-free
IF-PLL demodulator with FM radio
TDA9887TS
16. The intercarrier output signal at pin SIOMAD can be calculated by the following formula taking into account the
internal video signal with 1.1 V (p-p) as a reference:
(RMS)
where:
is the correction term for RMS value,
is the sound-to-picture carrier ratio at pins VIF1 and VIF2
in dB, 6 dB is the correction term of internal circuitry and
±3 dB is the tolerance of video output and intercarrier output
Vo(intc)(rms).
17. For normal operation (with the I2C-bus) no DC load at pin SIOMAD is allowed. The second module address (MAD2)
will be activated by the application of a 2.2 k
resistor between pin SIOMAD and ground. If this MAD2 is activated,
also the power-on set-up state activates a VIF frequency of 58.75 MHz.
18. SIF input level is 10 mV (RMS); VIF input level is 10 mV (RMS) unmodulated.
19. Measured with an FM deviation of 25 kHz and the typical AF output voltage of 500 mV (RMS). The AF output signal
can be attenuated by 6 dB to 250 mV (RMS) via the I2C-bus. For handling a frequency deviation of more than 55 kHz,
the AF output signal has to be reduced in order to avoid clipping (THD < 1.5%).
20. The lower limit of the audio bandwidth depends on the value of the capacitor at pin AFD. A value of CAF = 470 nF
leads to fAF(3dB) ≈ 20 Hz and CAF = 220 nF leads to fAF(3dB) ≈ 40 Hz.
21. For all S/N measurements the used VIF modulator has to 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 (at deviation 27 kHz) for 6 kHz sine wave black-to-white video modulation.
c) Picture-to-sound carrier ratio PC/SC1 = 13 dB (transmitter).
22. Calculation of the loop filter can be done approximately by use of the following formulae:
The formulae are only valid under the following conditions:
≤ 1 and CS >5CP
where:
KO is the VCO steepness
or
; KD is the phase detector steepness
;
R is the loop resistor; CS is the series capacitor; CP is the parallel capacitor; fo is the natural frequency of PLL;
BL3dB is the loop bandwidth for 3 dB; is the damping factor. For examples, see Table 20.
23. The PC/SC ratio is calculated as the addition of TV transmitter PC/SC1 ratio and SAW filter PC/SC1 ratio. This PC/SC
ratio is necessary to achieve the S/NW values as noted. A different PC/SC ratio will change these values.
24. Measurements taken with SAW filter G1984 (Siemens) for vision and sound IF (sound shelf: 14 dB).
Picture-to-sound carrier ratio of transmitter PC/SC = 13 dB. Input level on pins VIF1 and VIF2 of
Vi(SIF) = 10 mV (RMS) sync level, 27 kHz FM deviation for sound carrier, fAF = 400 Hz. Measurements in accordance
with
“CCIR 468”. De-emphasis is 50
s.
V
o(intc)
1.1 V (p-p)
1
22
-----------
×
10
V
iSC
()
V
iPC
()
--------------- dB
() 6 dB 3 dB
±
+
20
----------------------------------------------------------------
×
=
1
22
-----------
V
iSC
()
V
iPC
()
--------------- dB
()
f
o
1
2
π
-------
K
O KD
C
P
---------------
=
1
2R K
O KD CP
------------------------------------
=
BL
3dB
–
f
o 1.55
2
–
()
=
rad
V
--------
2
π
Hz
V
-------
A
rad
--------
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA9889TS/V1,512 | SPECIALTY CONSUMER CIRCUIT, PDSO16 |
| TDA9889TS/V1,518 | SPECIALTY CONSUMER CIRCUIT, PDSO16 |
| TDA9898HL/V3 | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| TDA9898HN/V3 | SPECIALTY CONSUMER CIRCUIT, PQCC48 |
| TDA9897HL/V3 | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA9888 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DVB selective AGC amplifier |
| TDA9888TS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DVB selective AGC amplifier |
| TDA9889 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DVB selective AGC amplifier |
| TDA9889TS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DVB selective AGC amplifier |
| TDA9889TS/V1,512 | 功能描述:射頻放大器 DVB T AFRIC DOWN CONVERSION RoHS:否 制造商:Skyworks Solutions, Inc. 類型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點(diǎn):37.5 dBm 功率增益類型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。