Buy(0)
Inquiry(0)
Dear customers, due to the implementation of the GDPR policy in Europe, UTSOURCE has also made adjustment accordingly to meet the policy requirements. Please read the new privacy policy carefully and this window will no longer pop up after you accept it.
Delivery Address
+ Add Address
The new shipping address
* Please fill in the cell phone number correctly to make sure that you can receive the tracking info in time.
Country Code
Favorite
Utsource certified used parts
Utsource certified used parts provide the following guarantees:
1. Utsource will inspect the goods, including appearance inspection (no serious damage to the appearance), select qualified and honest suppliers, and ensure 98% qualification rate.
2. Some parts are tested by machine.
3. Utsource certified parts can be returned and refunded unconditionally within 60 days.
Description
IC-BAUD RATE GENERATOR
All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.
CMOS Programmable Bit Rate Generator
The HD-4702 Bit Rate Generator provides the necessary clock signals for digital data transmission systems, such as a UART. It generates 13 commonly used bit rates using an on-chip crystal oscillator or an external input. For conventional operation generating 16 output clock pulses per bit period, the input clock frequency must be 2.4576MHz (i.e. 9600 Baud x 16x 16, since there is an internal 316 prescaler).A lower input frequency will result in a proportionally lower output frequency.
The HD-4702 can provide multi-channel operation with a minimum of external logic by having the clock frequency CO and the 38 prescaler outputs Q0,Q1, Q2 available externally. All signals have a 50% duty cycle except 1800 Baud, which has less than 0.39% distortion.
The four rate select inputs (S0-S3) select which bit rate is at the output (Z). See Truth Table for Rate Select Inputs for select code and output bit rate.Two of the 16 select codes for the HD-4702 do not select an internally generated frequency, but select an input into which the user can feed either a different frequency, or a static level (High or Low) to generate “ZERO BAUD".
The bit rates most commonly used in modern data terminals (110,150,300,1200,2400 Baud) require that no more than one input be grounded for the HD-4702, which is easily achieved with a single 5-position switch.
The HD-4702 has an initialization circuit which generates a master reset for the scan counter.This signal is derived from a digital differentiator that senses the first high level on the CP input after the ECP input goes low. When ECP is high, selecting the crystal input, CP must be low. A high level on CP would apply a continuous reset. See Clock Modes and Initialization below.
Features
● HD-4702 Provides 13 Commonly Used Bit Rates
● Uses a 2.4576MHz Crystal/Input for Standard Frequency Output (16 Times Bit Rate)
● Low Power Dissipation.Conforms to EIA RS-404
● One HD-4702 Controls up to Eight Transmission Channels
● Initialization Circuit Facilitates Diagnostic Fault Isolation
● On-Chip Input Pull-Up Circuit
Some Part number from the same manufacture
Same catergory
10000 buyer reviews from United States
William Davis
Length of registration:7 years
I recently ordered an IC HD3-4702-9 from your company and I am very pleased with its performance. The product is well-made and functions as advertised. I am particularly impressed with the speed and accuracy of the device. I am confident that this product will serve me well for many years to come. Thank you for your excellent service and qu product.
0
0
Reply0
03/17/2023
European payment method
Asia payment method
America payment method
International payment method
Latest shipping video More
Order
Payment
Shipping
Gift Coupon/Plus service
Returning
Returns are normally accepted when completed within 60 days from the date of the parcel delivered.
Defective ( Please provide a third party quality report of nonconforming products)
Return Freight charges must be prepaid; we will not accept COD shipments.
Warranty
All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
HD3-4702-9
HD3-4702-9 has several brands around the world that may have alternate names for HD3-4702-9 due to regional differences or acquisition. HD3-4702-9 may also be known as the following names:
BUYING OPTIONS
Stock Status: 10000
Minimum: 2
Total Price:
Unit Price:2.74000
UTSOURCE
Country:
United States
Express:(FEDEX, UPS, DHL, TNT)Free shipping on first 0.5kg for orders over 200$,Overweight will be charged separately
JudyCustomer Manager
sales@utsource.com
(888) 766 5577
+86 15302769052
+1 (312)899-4831
(whatsapp only)
Your dedicated customer service, providing you the best service at any time.
4 sellers Choices
Stop production experts, we can provide a large number of electronic components that have been stopped production and are difficult to find, to facilitate the maintenance company
Reply to
submit