N681622YG Nuvoton Technology Corporation of America, N681622YG Datasheet - Page 9

• Manufacturer Part Number: N681622YG
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of N681622YG

• Lead Free Status / RoHS Status: Supplier Unconfirmed

12.1.1.3.
12.1.1.3.1.
12.1.1.3.2.
12.1.1.3.3.
12.1.1.4.
12.1.1.4.1.
12.1.1.4.2.
12.1.1.5.
12.1.2.
12.1.2.1.
12.1.2.2.
12.1.3.
12.1.3.1.
12.1.3.2.
12.1.3.2.1.
12.1.3.2.2.
12.1.3.2.3.
12.1.3.2.4.
12.1.3.3.
12.1.3.4.
12.1.4.
12.1.4.1.
12.1.4.2.
12.1.4.3.
12.1.4.4.
12.1.4.5.
12.1.5.
12.1.6.
12.1.6.1.
12.1.6.1.1.
12.1.6.1.2.
12.1.6.1.3.
12.1.6.1.4.
12.1.6.1.5.
12.1.7.
12.1.7.1.
12.1.7.2.
12.1.8.
Preliminary Datasheet Rev1.0
AUTOMATIC TRANSITIONS ................................................................................................................... 29
POWER ALARM AUTOMATIC REACT ................................................................................................... 29
SETTING RING AUTOMATIC .................................................................................................................. 29
SETTING LOOP CLOSURE DETECT AUTOMATIC REACT .................................................................. 30
POLARITY REVERSAL ............................................................................................................................ 32
HARD POLARITY REVERSAL ................................................................................................................ 32
SOFT POLARITY REVERSAL ................................................................................................................. 32
WINK FUNCTION POLARITY REVERSAL .............................................................................................. 33
OVER-VOLTAGE PROTECTION ............................................................................................................. 33
THERMAL OVERLOAD ........................................................................................................................... 34
TEMPERATURE MONITOR .................................................................................................................... 35
RINGING .................................................................................................................................................. 35
TONE GENERATION ............................................................................................................................... 36
RING SIGNAL GENERATION .................................................................................................................. 39
SINUSOIDAL RINGING ........................................................................................................................... 41
TRAPEZOIDAL RINGING ........................................................................................................................ 42
RINGING DC OFFSET AND COMMON MODE BIAS .............................................................................. 43
LINEFEED CONSIDERATIONS DURING RINGING ............................................................................... 44
INTERNAL UNBALANCED RINGING ...................................................................................................... 44
RING TRIP DETECTION .......................................................................................................................... 45
SUPERVISION (SIGNALING) .................................................................................................................. 47
LOOP CLOSURE DETECTION................................................................................................................ 47
GROUND KEY DETECTION .................................................................................................................... 49
CALLER ID AND FSK GENERATION ...................................................................................................... 50
DTMF GENERATOR ................................................................................................................................ 51
DTMF DETECTION .................................................................................................................................. 53
CODEC .................................................................................................................................................... 54
HYBRID .................................................................................................................................................... 54
AC PATH .................................................................................................................................................. 54
NARROWBAND TRANSMIT PATH ......................................................................................................... 54
NARROWBAND RECEIVE PATH ............................................................................................................ 54
ANALOG TRANSHYBRID BALANCING .................................................................................................. 55
IMPEDANCE MATCHING ........................................................................................................................ 56
DAC/ADC AUTOMUTE ............................................................................................................................ 57
TESTING .................................................................................................................................................. 58
LOOP BACK TESTS ................................................................................................................................ 58
DIAGNOSTICS SUPPORT ...................................................................................................................... 59
POWER INTERFACE ............................................................................................................................... 59
Page 9 of 164
Single Programmable Extended Codec/SLCC
N681386/87
January 2010