ISD61S00 ChipCorder Telephony Feature Chip 2008 Nuvoton Technology Corporation America all rights reserved. Important Notice Nuvoton products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for surgical implantation, atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, or for other applications intended to support or sustain life. Further more, Nuvoton products are not intended for applications wherein failure of Nuvoton products could result or lead to a situation wherein personal injury, death or severe property or environmental damage could occur. Nuvoton customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Nuvoton for any damages resulting from such improper use or sales. ISD61S00 Table of Contents 1. GENERAL DESCRIPTION .............................................................................................................. 3 2. FEATURES ...................................................................................................................................... 3 3. PIN CONFIGURATION .................................................................................................................... 5 4. PIN DESCRIPTION .......................................................................................................................... 6 5. BLOCK DIAGRAM ........................................................................................................................... 9 6. APPLICATION REFERENCE SCHEMATICS ............................................................................... 10 6.1 PCB Layout Guidelines ................................................................................................. 10 7. PACKAGE SPECIFICATION ......................................................................................................... 14 7.1 LQFP48L (7x7x1.4mm footprint 2.0mm) ....................................................................... 14 8. ELECTRICAL CHARACTERISTICS .............................................................................................. 15 8.1 Absolute Maximum Ratings ........................................................................................... 15 8.2 Operating Conditions ..................................................................................................... 15 8.3 DC Parameters .............................................................................................................. 16 8.4 Analog Transmission Characteristics ............................................................................ 17 8.5 Analog Distortion and Noise Parameters ...................................................................... 17 8.5.1 8kHz sampling ................................................................................................................ 17 8.5.2 16kHz sampling .............................................................................................................. 18 8.6 SPI Timing ..................................................................................................................... 18 8.7 Recommended Clock/Crystal Specification .................................................................. 19 8.8 Dual Tone Alert Signal (CAS) ........................................................................................ 20 8.9 FSK Detection 1200baud Bell 202, ITU V.23, 300 baud Bell 103, ITU V.21 ............. 21 8.10 FSK Transmitter Bell 202, ITU-V.23, Bell 103, ITU-V.21 ........................................... 23 8.11 DTMF Detection ............................................................................................................ 24 9. ORDERING INFORMATION.......................................................................................................... 25 10. REVISION HISTORY ..................................................................................................................... 26 Publication Release Date: March 10, 2011 - 2 - Revision 2.7