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TDA8295HN/C2,518

Product Code : -
( Unit : U.S dollar )
1~99
100~499
500~999
1000~
price per box
quantity per box
RoHS : -
Stock : 67,820
Application : COMMON
Call TEL. +82-2-3397-3613
 
 
 
*General description

The TDA8295 is an alignment-free digital multistandard vision and sound low IF signal PLL demodulator for positive and negative video modulation including AM and FM mono sound processing. It can be used in all countries worldwide for M/N, B/G/H, I, D/K, L and L-accent standard. CVBS and SSIF/mono audio is provided via two DACs. FM radio preprocessing is included for simple interfacing with demodulator/stereo decoder backends.

The IC is especially suited for the application with the NXP Silicon Tuner TDA8275A or TDA1827x.

All the processing is done in the digital domain.

The chip has an easy programming mode to make the I2C-bus protocol very simple. In principle, only one bit sets the proper standard with recommended content. However, if this is not suitable, free programming is always possible.

Note: The recommended ADC programming deviates from default setting and needs to be set explicitly by I2C-bus protocol after hardware reset

 
*Features
  • Digital IF demodulation for all analog TV standards worldwide (M/N, B/G/H, D/K, I, L and L-accent standard)
  • Multistandard true synchronous demodulation with active carrier regeneration
  • Alignment-free
  • 16 MHz typical reference frequency input (from low IF tuner) or operating as crystal oscillator
  • Internal PLL synthesizer which allows the use of a low-cost crystal (typically 16 MHz)
  • Especially suited for the NXP Silicon Tuner TDA8275A or TDA1827x
  • No SAW filter needed
  • Low application effort and external component count in combination with the TDA8275A or TDA1827x
  • Pin compatible with predecessor TDA8290
  • Simple upgrade of TDA8290 possible
  • 12-bit IF ADC on chip running with 54 MHz or 27 MHz
  • Two 10-bit DACs on chip for CVBS and SSIF or audio
  • Easy programming for I2C-bus
  • High flexibility due to various I2C-bus programming registers
  • I2C-bus interface and I2C-bus feed-through for tuner programming
  • Four I2C-bus addresses selectable via two external pins
  • Gated IF AGC acting on black level by using H/V PLL or peak IF AGC (I2C-bus selectable)
  • Internal digital logarithmic IF AGC amplifier with up to 48 dB gain and 68 dB control range
  • Peak search tuner IF AGC for optimal adaptive drive of the IF ADC
  • Switchable IF PLL and IF AGC loop bandwidths
  • Precise AFC and lock detector
  • Accurate group delay equalization for all standards
  • Very robust IF demodulator coping with adverse field conditions
  • Wide PLL pull-in range up to 1660 kHz (I2C-bus selectable)
  • CVBS and SSIF or audio output with simple postfilter (capacitor only)
  • CVBS gain levelling stage to provide nearly constant signal amplitude during overmodulation
  • Video equalizer with eight settings
  • Nyquist filter in video baseband
  • Excellent video S/N (typically 62 dB weighted)
  • High selectivity video low-pass filter for all standards
  • Low video into sound crosstalk
  • Sound performance comparable to QSS single reference concepts
  • AM/FM mono sound demodulator
  • Switchable de-emphasis
  • Excellent FM sound
  • Good AM sound
  • High FM Deviation mode for China
  • Preprocessing of FM radio (mono and stereo) with highly selective digital band-pass filter
  • No ceramic filter or external components needed for FM radio
  • FM radio available in mono
  • Automatic or forced mute for mono sound
  • Automatic or forced blank for video
  • Mostly digital FIR filter implementation (NSC notches and video low-pass filters)
  • Three GPIO pins
  • Power-On Reset (POR) block for reliable power-up behavior
  • Low total power dissipation (typically 465 mW)
  • Standby mode (typically 7 mW)
  • 40-pin HVQFN package
  • CMOS technology (0.12 m 1.2 V and 3.3 V)
 

Datasheet : datasheet

 
 
Delivery

1. The initial delivery day shall be the day following the day on which the product is forwarded to the delivery service.
1) Regular home-delivery (excluding order date and holidays): Seoul/Gyeonggi 3~5days, other regions 3~8days
2) Postal service: Seoul/Gyeonggi 3~5days
2. During public holidays and weekends, there will be no delivery, and any other days during which delivery is impracticable due to a force majeure event may cause delay in the delivery.
3. The buyers both within and outside of Korea shall be responsible for any delivery fee that may arise. But the products bought over 300,000 won will be delivered free of charge.

Cancellation and Refund

1. The buyer may cancel the purchase order before the product is shipped, and if the product is in the process of being delivered, transaction shall be handled pursuant to the Article 15 of products return.
2. If the product is on standby for delivery after the payment, the buyer may cancel the order at any time except for the particular circumstances.
3. If credit card has been used for the payment, the payment shall immediately be refunded as soon as the cancellation process is completed. If cash has been used for the payment, the payment shall be refunded in 5 business days via direct account transfer or others.

Return and Exchange

1. The buyer may demand a return of the product within three days after the receipt of the delivery.
2. The cost for the return delivery shall be borne by the liable party.
3. The payment of refund upon return of the product shall be completed within 5 days after the Company has received the product from the buyer.
4. The Company shall refund, return and exchange in accordance with the buyer’s demand in the following cases. Such transaction shall be processed within 10 days after the delivery.
1) Delivered product does not match with the purchase order.
2) Delivered product is lost or damaged due to the Company’s error.
3) Delivery is considerably delayed than what has been scheduled.
4) Otherwise, legitimate reasons are submitted to the Company for the demand by the buyer.

Delivery/Returned goods/Exchange Address

Guro branch : 3127, Ma-Dong, Central Distribution Complex, 1258, Guro-Dong, Guro-Gu, Seoul, Korea, 152-721
TEL : +82-2-2681-5517(REP)
FAX : +82-2-2681-5518
Support: +82-2-3397-3613
E-mail : shop@semidj.com

Overseas Delivery Service

1. The Company provides the service in accordance with the overseas delivery procedure of the products whose trade contract is already signed through the overseas delivery network that has business connection with the Company. Overseas delivery is divided into as follows:
1) A domestic delivery phase: until the buyer’s product is delivered to a logistics center of a third party in business cooperation with the Company
2) An overseas delivery phase: until the product is delivered to the recipient through the overseas delivery network
2. For overseas delivery, the buyer’s order may be cancelled depending on the status of the delivery request. Return requested due to change of mind during delivery is limited to the phase of domestic delivery. Once the product has completed the domestic delivery phase and entered the overseas delivery phase, a return is not permitted unless the Company approves return or exchange due to an original defect in the delivered product.
3. A buyer requesting the Company’s approval on return or exchange must approve the original product defect or other grounds for return or exchange by submitting to the Company objective evidence. The costs and expenses for the delivery in connection with the return or exchange shall be paid by the Company once objective evidence has been approved.
4. The buyer who has received an approval to return or exchange of the product from the Company shall contact the DJmall customer center before the return of the product, including documents to verify costs and expenses for the delivery.
5. If the estimated cost of the delivery paid at purchase is greater than the actual delivery cost, the difference will be refunded to the buyer.
6. If the estimated cost of the delivery paid at purchase is less than the actual delivery cost, the buyer must make an additional payment to complete the delivery. If the difference is not paid within 3 months despite of continuous notice, the product may become the Company’s own property.
7. In the event of using overseas delivery service, the recipient is liable for all customs, taxes, duties and other cost imposes by the country to which the delivery is made.
'BUYER IS RESPONSIBLE FOR THE DELIVERY FEE'