參數(shù)資料
型號(hào)： TDA8295HN/C2
廠(chǎng)商： NXP SEMICONDUCTORS
元件分類(lèi)： 接收器
英文描述： AM/FM, AUDIO/VIDEO DEMODULATOR, PQCC40
封裝： 6 X 6 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT618-1, HVQFN-40
文件頁(yè)數(shù)： 2/83頁(yè)
文件大小： 3440K
代理商： TDA8295HN/C2
TDA8295_C2_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 27 November 2009
10 of 83
NXP Semiconductors
TDA8295
Digital global standard low IF demodulator for analog TV and FM radio
8.
Functional description
8.1 IF ADC
The low IF spectrum (1 MHz to 10 MHz) from the Silicon Tuner TDA8725A or TDA1827x
is fed symmetrically to the 12-bit IF ADC of the TDA8295, where it is sampled with
54 MHz or 27 MHz. All the anti-aliasing filtering is already done in the Silicon Tuner.
8.2 Filters
The internal filters permit to reduce the sampling rate to 13.5 MHz, and to form a complex
signal to ease the effort of further signal processing. Before this, the DC offset (coming
from the ADC) is removed.
In addition, standard dependent notch filters for the adjacent sound carriers protect the
picture carrier PLL from malfunctioning and avoid disturbances (i.e. moire) becoming
visible in the video output.
8.3 PLL demodulator
The second-order PLL is the core block of the whole IC. It is very robust against adverse
field conditions, like excessive overmodulation, no residual carrier presence or unwanted
phase or frequency modulation of the picture carrier. The PLL output is the synchronously
demodulated channel.
The AFC data is available via the I2C-bus.
8.4 Nyquist filter, video low-pass filter, video and group delay equalizer,
video leveling
The afore-mentioned down-mixed complex signal at the mixer CORDIC output, already
consisting of the demodulated content of the picture carrier together with the sound
carriers (the so-called intercarriers), is running through a Nyquist filter to get a flat video
response and is made real.
Afterwards, a video low-pass filter suppresses the sound carriers and other disturbers.
Next comes the equalizer circuit to remove the transmitter group delay predistortion.
Table 5.
Pin type description
Type
Description
AI
analog input
AO
analog output
GND
ground
I
digital input
I/O
digital input and output
O
digital output
OD
open-drain output
PS
power supply
T
3-state
相關(guān)PDF資料
PDF描述
TDA8310AN SPECIALTY CONSUMER CIRCUIT, PDIP52
TDA8310N SPECIALTY CONSUMER CIRCUIT, PDIP52
TDA8315T-T COLOR SIGNAL DECODER, PDSO24
TDA8315TD COLOR SIGNAL DECODER, PDSO24
TDA8362N SPECIALTY CONSUMER CIRCUIT, PDIP52
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA8296 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Digital global standard low IF demodulator for analog TV and FM radio
TDA8296HN 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Digital global standard low IF demodulator for analog TV and FM radio
TDA8296HN/C1,518 功能描述:調(diào)節(jié)器/解調(diào)器 DIGITAL GLOBAL IF DEMODULATOR RoHS:否 制造商:Texas Instruments 封裝 / 箱體:PVQFN-N24 封裝:Reel
TDA8296HN/C1,551 功能描述:調(diào)節(jié)器/解調(diào)器 DIGITAL GLOBAL IF DEMODULATOR RoHS:否 制造商:Texas Instruments 封裝 / 箱體:PVQFN-N24 封裝:Reel
TDA8296HN/C1,557 功能描述:調(diào)節(jié)器/解調(diào)器 DIGITAL GLOBAL IF DEMODULATOR RoHS:否 制造商:Texas Instruments 封裝 / 箱體:PVQFN-N24 封裝:Reel
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(chǎng)商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*