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AG8888

ELAN Microelectronics Corp
Part Number AG8888
Manufacturer ELAN Microelectronics Corp
Description CALL WAITING DECODER
Published Mar 23, 2005
Detailed Description AG8888 CALL WAITING DECODER I. GENERAL DESCRIPTION This is a Call Waiting decoder used on the telephone. Call Waiting ...
Datasheet PDF File AG8888 PDF File

AG8888
AG8888

Overview
AG8888 CALL WAITING DECODER I.
GENERAL DESCRIPTION This is a Call Waiting decoder used on the telephone.
Call Waiting service works by alerting a customer engaged in a telephone call to a new incoming call.
Thus, the customer can still receive important calls while engaged in a current call.
The Call Waiting decoder can detect dual-tone (2130Hz and 2750Hz) alert tone and generate a valid timing on the data pins for micro controller.
II.
FEATURES • • • • • • • Compatible with Bellcore special report SR-TSV-002476 3.
6V ~ 6.
0V supply voltage Call-Waiting (2130Hz plus 2750Hz) alert tone detector Sensitivity compensated by adjusting OP Amp Internal buffer Detection block for alert tone detected and digital algorithm detection Package series --- 14-pin DIP or 16-pin SOP (150 mil) AG8888AP for 14-pin DIP AG8888N for 16-pin SOP (150 mil) III.
APPLICATION Feature phones, cordless phones and stand-alone product IV.
PIN CONFIGURATION AG8888AP TI/RI BO F1 AVSS OE NC DVSS 1 2 3 4 5 6 7 14 13 12 11 AG8888N OPO AVDD DO NC DVDD OSCI OSCO TI/RI BO F1 AVSS OE NC DVSS NC 1 2 3 4 5 6 7 8 16 15 14 13 OPO AVDD DO NC DVDD OSCI OSCO NC 10 9 8 12 11 10 9 * This specification are subject to be changed without notice.
8.
8.
2000 1 AG8888 CALL WAITING DECODER V.
FUNCTIONAL BLOCK DIAGRAM OPO BO FI TI/RI Buffer Tone Filter Detection Block DO Vdd/2 OSCI OSCO Clock Generator OE Voltage Reference VI.
PIN DESCRIPTIONS Pin TI/RI OE OSCI OSCO DO OPO BO FI AVDD DVDD AVSS DVSS NC I/O I I I O O O O I Description Tip in or Ring in should be connected with twisted pair Output enable for alert tone detected.
High is enable.
Low is for factory test.
480KHz crystal in 480KHz crystal out Alert tone detected output.
Normal low.
Under OE pin set to high, when call waiting alert tone is detected, this pin goes to high.
Output of OP Amp Internal buffer output Band pass filer input Analog power.
Digital power.
Analog Ground.
Digital Ground.
Non connected VII.
FUNCTIONAL DESCRIPTIONS Call Wait...


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