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MC34018
MC34018 - Brand New UTC Telecommunication Interface ICs
- One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
DESCRIPTION
The UTC MC34018 speaker-phone integrated circuit includes all the active circuitry and control functions to implement a high quality hands-free telephone system. The circuit includes a microphone amplifier, a speaker amplifier, level detectors, a background sound level monitoring system in both the transmit and receive channels and an attenuation system which can control the transmit and receive levels as well as the background level. The applications include household and office speaker-phones, intercom systems, hand free kit for mobile phones, and others.
FEATURES
- Chip Select pin for Power conservation (active/standby mode).
- Integrated all necessary active circuitry for a hand-free telephone into one single chip.
- Operating under wide dynamic range through signal compression technology.
- Build-In voltage regulators illuminate external regulators for lining operation.
- Monitoring system for background noise level.
- Background sound level compensation for transmit and receive levels as well as the background level.
- Power audio amplifier for typical 100mW output (into 25Ω) with peak limiting for speaker to minimize distortion.
- Volume control function for external volume control circuit.
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
| United States | 3 - 5 days | 10-15 days | |
| Canada | 3 - 5 days | 10-20 days | |
| Mexico | 3 - 5 days | 10-17 days | |
| Germany | 3 - 5 days | 10-12 days | |
| Italy | 3 - 5 days | 10-15 days | |
| United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |