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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 13/32頁 |
| 文件大?。?/td> | 152K |
| 代理商： | TDA9801T |
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1999 Aug 26
13
Philips Semiconductors
Product specification
Single standard VIF-PLL demodulator
and FM-PLL detector
TDA9801
Notes
1.
2.
Values of video and sound parameters can be decreased at V
P
= 4.5 V.
This parameter is not tested during production and is only given as application information for designing the television
receiver.
Conditions for video demodulator:
a) Loop bandwidth: BL = 60 kHz, natural frequency f
n
= 15 kHz, damping factor d = 2, calculated with grey level and
FPLL input level
b) Resonance circuit of VCO: Q
o
> 50, see Table 2 for the value of the external capacitor C; C
VCO
= 8.5 pF, loop
voltage is approximately 2.6 V at V
P
= 5 V and approximately 2.7 V at V
P
= 9 V.
Temperature coefficient of the external LC circuit is equal to zero.
V
i(VIF)(rms)
= 10 mV;
f = 1 MHz (VCO frequency offset related to f
PC
); white picture video modulation.
V
i(VIF)
signal for nominal video signal.
Broadband transformer at the VIF input (see Fig.12). The C/N ratio at the VIF input for ‘lock-in’ is defined as the VIF
input signal (RMS value of sync pulse level) related to a superimposed 5 MHz band-limited white noise signal
(RMS value). The video modulation is for white picture.
The offset current is measured between pin TPLL and half of the supply voltage (V
P
= 2.5 V) under the conditions:
a) no input signal at VIF inputs
b) IF amplifier gain at minimum (V
AGC
= V
P
) and pin ADJ is left open-circuit.
The intercarrier output signal is superimposed to the video signal at pin VSO and can be calculated by the following
formula:
V
×
=
3.
4.
5.
6.
7.
8.
9.
where
a) 1.0 V (p-p) = video output signal as reference
b)
= correction term for RMS value
c)
= sound-to-picture carrier ratio at VIF inputs in dB
d) 6 dB = correction term of internal circuitry
e)
±
2 dB = tolerance of video output and intercarrier output amplitude V
o(intc)(rms)
.
f) Example for SAW filter G1962:
sound shelf value = 20 dB,
V
V
i(PC)
Measurements from VIF input to AF output;
notes 20 and 21; see Fig.13
S/N
W
weighted signal-to-noise
ratio
“CCIR 468-4”
black picture (sync only)
white picture
colour bar
46
42
40
52
48
46
dB
dB
dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
o(intc)(rms)
1.0 V (p-p)
2 2
----1
×
10
V
------------------------------20
6 dB
2 dB
±
+
2 2
----1
V
V
i(PC)
--------------- (dB)
---------------
27 dB
–
V
o(intc)(rms)
32 mV (typical value)
=
=
相關PDF資料 |
PDF描述 |
|---|---|
| TDA9802 | Multistandard VIF-PLL demodulator and FM-PLL detector |
| TDA9802T | Multistandard VIF-PLL demodulator and FM-PLL detector |
| TDA9806 | Multistandard VIF-PLL and FM-PLL demodulator |
| TDA9808 | Single standard VIF-PLL with QSS-IF and FM-PLL demodulator |
| TDA9808T | Single standard VIF-PLL with QSS-IF and FM-PLL demodulator |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDA9801T/V1,118 | 功能描述:射頻無線雜項 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:射頻無線雜項 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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