We are a manufacturer of electronic components, electronic modules for a large number of products.We are the factory!With more than 10 years of PCB development experience, the product quality is good, the price is excellent.A large number of wholesale sales of global buyers, welcome to purchase.
Features:
· Single power supply wide range 3V-5.5V
·Internal DC/DC converter
·Internal ringing function
·Positive and negative function
·2/4 line conversion
·Constant current feed
·Specially designed for GSM network
·Low price and high performance
application:
·Wireless public telephone user interface
·MODEM interface
·IP gateway voice interface
·Wireless access user interface
·Set top box voice interface
index:
·The degree of unbalance to ground is typically 60dB (300Hz-3400Hz)
· Impedance characteristics 600 ohms
·4-line return loss >24Db
·Balance noise typical value -75dB
· Ringing current voltage Typical value 90VP-P
·Feed current 23mA
·Power supply voltage 3.2V-5.5VDC
