AK2306 Datasheet, PDF (14/38 Pages) Asahi Kasei Microsystems – Dual PCM CODEC for ISDN/VoIP TERMINAL ADAPTER

ASAHI KASEI
[AK2306/LV]
RING TONE GENERATOR
Ring tone generator generates two kinds of ring tone, 16Hz and 20Hz. The frequency of the tone can be selected by CPU
register.
Tone frequency selection
Tone Selection register (Address: 101, Bit: 4)
TNFQ
Tone Frequency
0
16Hz
Remarks
Default
1
20Hz
Tone output enable
Tone output can be enabled/disabled through CPU register.
RING TONEGEN Enable (Address: 100, Bit: 2)
PDTN
RING TONE GENERATOR
Remarks
1
Power Down*
Default
0
Tone output enabled
* When Power down is selected, TNOUT pin output is fixed to “L” level.
MS0093-E-04
14
2001/11