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Low Distortion AGC Compression Amplifier
| Manufacturer : | Gennum Corporation (Semtech) |
|---|---|
| Package/Case : | LL-34 |
| Product Categories : | Amplifier ICs |
| Datasheet: | LD502 Datasheet (PDF) |
| RoHs Status: | Lead free/RoHS Compliant |
| In-stock: | 310 |
Quantity
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LD502 Product Details
This application note describes the use of three Gennum integrated circuits, the LD502 and LC507 in recording/playback amplifiers for battery operated cassette recorders and dictaphones. A key feature of the circuits is their ability to provide excellent performance by a single battery cell. The LD502 is available in miniature MINIpac package. The LC507 is packaged in a single in-line MICROpac M4.
GENERAL PURPOSE RECORDING AMPLIFIER CIRCUIT DESCRIPTION
All the circuits described in this note comprise two gain blocks. The first block utilizes the LD502 as a microphone AGC preamplifier during recording or as a frequency compensating preamp on playback. The second block employs the LC507 as a record head driver during record ing and as a headset driver on playback.
The microphone AGC preamplifier requires only six external components including the input and ouput coupling capacitors. The initial gain is set by selecting the value of R1. With R1=130kΩ the gain is typically 40 dB for input levels up to the threshold (typically 80-100µV).
For input levels higher than the threshold, the AGC starts operating and controls the gain maintaining the output level at typically 10 mV.
Feature
• Operation with supply voltages from as low as 1.1V up to 6V
• Miniature packages available
• Greater than 40 dB AGC range in recording amplifier provides for constant recording level over a wide range of acoustic inputs
• Design flexibility permits minimum parts count “economy” circuits or more sophisticated version with broad smoother record/playback response
Technical Parameters
- Manufacturer
- GENNUM
- Packing
- Tape & Reel (TR)/Cut Tape (CT)/Tray/Tube
- RoHs Status
- Lead free/RoHS Compliant
- Package/Case
- LL-34
LD502 Related Products
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- Payment:
- Shipping:
Shipping & Payment
Shipping
- Shipping Type
- Ship Fee
- Lead Time
- 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.
Payment
- Terms of payment
- Hand Fee
- 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.
We provide high quality products, thoughtful service and after sale guarantee
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We have rich products, can meet your various needs.
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Minimum order quantity starts from 1pcs.
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Lowest international shipping fee starts from US$2.00.
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90 days quality guarantee for all products.
Packing
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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.
Guarantees
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 LD502 is the original manufacturer or agent of GENNUM?
- We have a professional business development department to strictly test and verify the qualifications of GENNUM original manufacturers and agents. All GENNUM suppliers must pass the qualification review before they can publish their LD502 devices; we pay more attention to the channels and quality of LD502 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of LD502 chips? Including GENNUM original factory information, application, LD502 pictures?
- You can use Jotrin's intelligent search engine, or filter by Amplifier ICs category, or find it through Gennum Corporation (Semtech) Information page.
- Q: Are the GENNUM's LD502 price and stock displayed on the platform accurate?
- The GENNUM's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LD502, 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 LD502?
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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 LD502 we delivered, we will accept the replacement or return of the LD502 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 LD502.
(3)The LD502 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 LD502 datasheet pdf, LD502 pin diagram?
- Need any After-Sales service, please feel free contact us: sales@jotrin.com
Gennum Corporation (Semtech)
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