ВСЕ КАТЕГОРИИ
Изображения приведены только для справки, см. Технические характеристики изделия.
Low-Voltage Acoustic Echo Canceller With Noise Reduction
| Производитель : | Microchip Technology, Inc |
|---|---|
| Упаковка/Ящик : | TQFP48 |
| категорий продукта : | Interface ICs |
| Datasheet: | ZL38002QDG1 Datasheet (PDF) |
| RoHs Status: | Lead free / RoHS Compliant |
| Наличность: | 6690 |
Количество
Запрос он-лайн
ZL38002QDG1 информация о продукте
The ZL38002QDG1 device is comprised of an acoustic echo canceller and the necessary control functions for operation. The ZL38002QDG1 guarantees clear signal transmission in both transmit and receive audio path directions to ensure reliable voice communication, even when low level signals are provided. The ZL38002QDG1 does not use variable attenuators during double-talk or single-talk periods of speech, as do many other acoustic echo cancellers for speakerphones. Instead, the ZL38002QDG1 provides high performance full-duplex operation similar to network echo cancellers. This results in users experiencing clear speech and uninterrupted background signals during the conversation and prevents subjective sound quality problems associated with "noise gating" or "noise contrasting".The ZL38002QDG1 uses an advanced adaptive filter algorithm that is double-talk stable, which means that convergence takes place even while both parties are talking. This algorithm allows continual tracking of changes in the echo path, regardless of double-talk, as long as a reference signal is available for the echo canceller.The echo tail cancellation capability of the acoustic echo canceller has been sized appropriately (112 ms) to cancel echo in an average sized office with a reverberation time of less than 112 ms.Simplified Block DiagramTypical ApplicationsHands free car kitsFull duplex speaker-phone for digital telephoneEcho cancellation for video conferencingSecurity systemsIntercom systems (door entry, elevator, and restaurant drive-through)
Особенность
- 112 ms acoustic echo canceller
- Up to 12 dB of noise reduction
- Works with low cost voice codec. ITU-T G.711 or signed mag µ/A-Law, or linear 2's compliment
- Advanced NLP design - full duplex speech with no switched loss on audio paths
- Fast re-convergence time: tracks changing echo environment quickly
- Adaptation algorithm converges even during Double-Talk
- Designed for exceptional performance in high background noise environments
- Howling prevention stops uncontrolled oscillation in high loop gain conditions
- User gain control provided for speaker path (-24 dB to +21 dB in 3 dB steps)
- Adjustable gain pads from -24 dB to +21 dB at Xin, Sin and Sout to compensate for different system requirements
- AGC on speaker path
- Handles up to -6 dB acoustic echo return loss (with the appropriate gain pad settings)
- Idle channel noise suppression
- Each port may operate independently in companded format or linear format
- Bootloadable for future factory software upgrades
Применения
- Hands free car kits
- Full duplex speaker-phone for digital telephone
- Echo cancellation for video conferencing
- Security systems
- Intercom systems (door entry, elevator, and restaurant drive-through)
(Картинка: Diagram)
Технические параметры
- Function
- Echo Cancellation
- Interface
- Serial
- Number of Circuits
- 1
- Voltage Supply
- 2.7V ~ 3.6V
- Current Supply
- 20mA
- Power (Watts)
- 90mW
- Operating Temperature
- -40??C ~ 85??C
- Mounting Type
- Surface Mount
- Package / Case
- 48-TQFP
- Supplier Device Package
- 48-TQFP (7x7)
ZL38002QDG1 Datasheet
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ZL38002
ZL38002QDG1 Связанные специальные
Ratings and Reviews (1)
- 5 / 5
- 5 Stars 100%
- 4 Stars 0%
- 3 Stars 0%
- 2 Stars 0%
- 1 Stars 0%
-
**lex ***2020-01-18
Great Seller!I Recommend!
- Оплата:
- Перевозка:
Перевозка & Оплата
Перевозка
- Доставка типа
- Гонорар корабля
- Затягивание
- DHL
- $20.00-$40.00 (0.50 KG)
- 2-5 days
- Fedex
- $20.00-$40.00 (0.50 KG)
- 3-7 days
- UPS
- $20.00-$45.00 (0.50 KG)
- 2-5 days
- TNT
- $25.00-$65.00 (0.50 KG)
- 2-5 days
- EMS
- $25.00-$45.00 (0.50 KG)
- 5-14 days
- REGISTERED AIR MAIL
- $2.00-$3.00 (0.10 KG)
- 7-30 days
Processing Time：Shipping fee depend on different zone and country.
Оплата
- Условия платежа
- Рука Плата
- Wire Transfer
- charge US$30.00 banking fee.
- Paypal
- charge 4.0% service fee.
- Credit Card
- charge 3.5% service fee.
- Western Union
- charge US$0.00 banking fee.
- Money Gram
- charge US$0.00 banking fee.
Мы обеспечиваем высокое качество продукции, заботливое обслуживание и после продажи гарантии
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У нас есть богатые продукты, может удовлетворить ваши различные потребности.
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Минимальное количество заказа начинается от 1шт.
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Самая низкая международная стоимость доставки начинается от $ 2,00 США.
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90 дней гарантия качества для всех продуктов.
упаковка
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Step1: Products
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Step2: Vacuum Packaging
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Step3: Anti-Static Bag
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Step4: Individual Packaging
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Step5: Packaging Boxes
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Step6: Bar-Code Shipping Tag
All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Гарантии
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
FAQ:
- Q: How does Jotrin guarantee that ZL38002QDG1 is the original manufacturer or agent of MICROCHIP?
- We have a professional business development department to strictly test and verify the qualifications of MICROCHIP original manufacturers and agents. All MICROCHIP suppliers must pass the qualification review before they can publish their ZL38002QDG1 devices; we pay more attention to the channels and quality of ZL38002QDG1 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of ZL38002QDG1 chips? Including MICROCHIP original factory information, Interface ICs application, ZL38002QDG1 pictures?
- You can use Jotrin's intelligent search engine, or filter by Audio & Voice ; Audio Processing ; Mature Audio Processors ; ZL38002 category, or find it through Microchip Technology, Inc Information page.
- Q: Are the MICROCHIP's ZL38002QDG1 price and stock displayed on the platform accurate?
- The MICROCHIP's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for ZL38002QDG1, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
- Q: Can I place an order offline?
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Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online. - Q: What forms of payment can I use in Jotrin?
- TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
- Q: How is the shipping arranged and track my package?
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Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days. - Q: What is the process for returns or replacement of ZL38002QDG1?
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All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment.
If there is something wrong with the ZL38002QDG1 we delivered, we will accept the replacement or return of the ZL38002QDG1 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of ZL38002QDG1.
(3)The ZL38002QDG1 is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy. - Q: How to contact us and get support, such as ZL38002QDG1 datasheet pdf, ZL38002 pin diagram?
- Need any After-Sales service, please feel free contact us: sales@jotrin.com
Microchip Technology, Inc
Microchip Technology Inc. is a leading manufacturer of microcontroller and analog products, providing low-risk product development, lower total system cost, and faster time to market for thousands of diverse customer applications worldwide. Microchip offers outstanding technical support along with d...
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