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TEA1114
TEA1114 - Brand New PHILIPS IC Chips
Credit Card - 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
GENERAL DESCRIPTION
The TEA1114A is a bipolar integrated circuit that performs all speech and line
interface functions required in fully electronic telephone sets. It performs
electronic switching between speech and dialling. The IC operates at a line
voltage down to 1.45 V DC (with reduced performance) to facilitate the use of
telephone sets connected in parallel.
When the line current is high enough, a fixed amount of current is derived
from the LN pin in order to create a strong supply point at pin VDD. The
voltage at pin VDD is regulated to 3.3 V to supply peripherals such as
dialler, LCD module and microcontroller.
FEATURES
• Low DC line voltage; operates down to 1.45 V
(excluding voltage drop over external polarity guard)
• Line voltage regulator with adjustable DC voltage
• 3.3 V regulated strong supply point for peripheral circuits compatible with:
– Speech mode
– Ringer mode
– Trickle mode.
• Transmit stage with:
– Microphone amplifier with symmetrical high impedance inputs
– DTMF amplifier with confidence tone on receive output.
• Receive stage with:
– Receive amplifier with asymmetrical output
– Earpiece amplifier with adjustable gain (and gain boost facility) for all
types of earpieces.
• MUTE input for pulse or DTMF dialling
• AGC line loss compensation for microphone and receive amplifiers.
APPLICATIONS
• Line powered telephone sets with LCD module
• Cordless telephones
• Fax machines
• Answering machines.
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 |
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