L393A - Brand New Texas Instruments IC Chips
-
DESCRIPTION
The device consists of the speech and the dialer. It provides the DC line interface circuit that terminates the telephone line, analog amplifier for speech transmission and necessary signals for either DTMF or loop disconnect (pulse) dialing.
SPEECH CIRCUIT
■ 2 TO 4 WIRES CONVERSION
■ PRESENT THE PROPER DC PATH FOR THE LINE CURRENT AND THE FLEXIBILITY TO ADJUST IT AND ALLOW PARALLEL PHONE OPERATION
■ PROVIDES SUPPLY WITH LIMITED CURRENT FOR EXTERNAL CIRCUITRY
■ SYMMETRICAL HIGH IMPEDANCE MICROPHONE INPUTS SUITABLE FOR DYNAMIC ELECTRET OR PIEZOELECTRIC TRANSDUCER
■ ASYMMETRICAL EARPHONE OUTPUT SUITABLE FOR DYNAMIC TRANSDUCER
■ LINE LOSS COMPENSATION
■ INTERNAL MUTING TO DISABLE SPEECH DURING DIALING
■ HOLD FUNCTION FOR PARALLEL PHONE WITH 400ms DELAY TO PREVENT FALSE RELEASEDIALER CIRCUIT
■ 32 DIGITS FOR LAST NUMBER REDIAL BUFFER
■ 18 DIGITS FOR 13 MEMORY REDIAL
■ ALLOW MIXED MODE DIALING IN EITHER TONE OR PULSE MODE
■ PACIFIER TONE PROVIDES AUDIBLE INDICATION OF VALID KEY PRESSED IN A BUZZER OR/AND IN THE EARPHONE
■ TIMED PABX PAUSE
■ FLASH INITIATES TIMED BREAK: MASK OPTIONS WITH 585ms,300ms,100ms
■ CONTINUOUS TONE FOR EACH DIGIT UNTIL KEY RELEASE
■ USES INEXPENSIVE 3.579545MHz CERAMIC RESONATOR
■ POWERED FROM TELEPHONE LINE, LOW OPERATING VOLTAGE FOR LONG LOOP APPLICATION -
Similar parts: 430483 , Click to view
-
Datasheet
-
Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
- - View in your order page
Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
- - Automatic Email notification (above 5 times)
- - View in your order page
How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
- View more
Payment:
- - Paypal,Credit Card includes Visa, Master, American Express.
- - Wire transfer, include Local bank transfer.
- - Western Union.
- View more
-
Popular parts of the same kind
- Datasheet: Download L393A
- Chipdatas Part: CD89-L393A
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/03 13:13 +0800
-
- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
-
E-STLC2500CTR - Brand New STMicroelectronics IC ChipsWFBGA -
CY7C68053A-56BA - Brand New Cypress Semiconductor IC ChipsBGA -
AR8035-AL1A-R - Brand New QCA IC ChipsBGA -
BL1117-ADC - Brand New Belling IC ChipsSOT-223 -
HM628512BLFP-7 - Brand New Nexperia IC ChipsSOP-32 -
BCM5325FKQMG - Brand New Broadcom IC ChipsQFP -
D431000AGW-70LL - Brand New NEC IC ChipsSOP -
HT46R003B - Brand New HOLTEK IC ChipsSOP-16 -
BCM2045KWBG - Brand New Broadcom IC ChipsBGA -
H26M52103FMR - Brand New Skhynix IC ChipsBGA
-
The fee is charged according to the rule of PayPal.
-
The fee is charged according to the rule of PayPal.
-
Western Union charge US$0.00 banking fee.
-
We recommend to use bank transfer for large orders to save on handling fees.
-
DHL(www.dhl.com)
$40 limited time offer. -
UPS(www.ups.com)
$40 limited time offer. -
FedEx(www.fedex.com)
$40 limited time offer. -
Registered Mail(www.singpost.com)
Free shipping without minimum order.
