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TEA7092TQT-8A
TEA7092TQT-8A - Brand New STMicroelectronics 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
DESCRIPTION
The TEA7092is a Telephoneset Analog Front End (TAFE) interface intended for
use in conjunction with a microcontroller.
In this configurationthe TEA7092 provides a worldwide telephone set with
loudhearing and melody ringer on loudspeaker.An handsfreetelephoneset can be
built by adding the TEA7540 handsfree controller.
SPEECH
■ DC LINE CURRENT RANGE FROM 6 TO 120mA
■ EXTERNALLY ADJUSTABLE :
- Tx AND Rx GAIN
- MAXIMUM TRANSMIT LEVEL
- RETURN LOSS
- SIDETONE NETWORKS
- Tx AND Rx AGC (LINE CURRENT START UP VALUE AND SLOPE)
■ SOFTCLIPPING ON Tx CHANNEL
■ SQUELCHON Tx CHANNEL TO REDUCE NOISE ENVIRONMENT AND TO IMPROVE HOWLING
IMMUNITY IN LOUDHEARING MODE
■ RECEIVING AMPLIFIER FOR PIEZO AND ELECTRODYNAMIC TRANSDUCERS
■ FREQUENCY GENERATOR FOR WAITING MELODY
■ ERROR BEEP GENERATOR
■ HOLD LINE CURRENT DETECTOR FOR TRANSFER/AUTO RELEASE FEATURE
■ PROGRAMMABLE BY MICROCONTROLLER SERIAL BUS :
- -6dB ON Tx CHANNEL
- +6dB ON Rx CHANNEL
- AGC INHIBITION ON Tx AND Rx CHANNELS FOR PABX USE
- SQUELCH INHIBITION
GROUP LISTENING / ON HOOK DIALING
■ ANTI-HOWLING WITH ACOUSTIC FEEDBACK SYSTEM COUPLED TO SQUELCH
■ RING MELODY CONTROL AND ERROR BEEP GENERATORS
■ PROGRAMMABLE BY MICROCONTROLLER SERIAL BUS :
- DIGITAL VOLUME CONTROL (7 STEPS OF 4dB EACH) AND OFF MODE
HANDFREE INTERFACE
■ PINS AND SOFTWARE FACILITY FOR EASY INTERCONNECTION WITH HANDSFREE CONTROLLER I.C. LIKE TEA7540
RING ON LOUDSPEAKER
■ EMBEDDED SWITCH MODE POWER SUPPLY DRIVER TO FEED THE LOUDSPEAKER AMPLIFIER
DURING RING MODE
■ PROGRAMMABLE BY MICROCONTROLLER SERIAL BUS :
- DIGITAL VOLUME CONTROL (15 STEPS OF 4dB EACH) AND OFF MODE
- RING FREQUENCY GENERATOR (MORE THAN 200 FREQUENCIES AVAILABLE)
DIALING
■ PROGRAMMABLE BY MICROCONTROLLER SERIAL BUS :
- DTMF GENERATOR
- 2V DC LINE VOLTAGE DURING THE MAKE PERIOD IN PULSE MODE
MICROCONTROLLER INTERFACE
■ 3.5V STABILIZED SUPPLY
■ TWO WIRES SERIAL BUS INTERFACE
■ RING INDICATOR
■ PON LINE CURRENT INDICATOR
■ RESET SIGNAL
■ LINE CURRENT VARIATION INDICATOR (FOR TRANSFER FEATURE)
■ OSCILLATOR WITH STAND BY MODE
CORDLESS AND ANSWERING MACHINE INTERFACE
■ SELF BIASED LOUDSPEAKER AMPLIFIER AND MICROCONTROLLER INTERFACE FOR
ANSWERING MACHINE
■ SIGNAL INPUT AND OUTPUT INTERFACE FOR CORDLESS
■ VRMC SUPPLY CAN BE EXTERNALLY FORCED TO 5V FOR EASY INTERFACE WITH A MAIN
POWERED MICROCONTROLLER
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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