SIGMA BENEFON TDP-52-SN3 - Manual (Page 169)

27.1.1999
Xo0245e4_fm5.fm 8
Product: LIF-40 (Line Interface) / YO0245
BENEF
N
Title: Line
interface
Date: 21
.4.1993 / HJo
PCF 8574 I2C address
4AH
II
CI
NT
SDA SCL VB
+5
V
REG.
RXAUDIO TXAUDIO
DC/DC Converter
LPF
LB LA
HOOK DET. 4/2-WIRE AUDIO CONV.
OSCILLATOR/ DIVIDER (74HC4060)
P0/RING_OFF
Input: 5.5V -
10V
Out:
15V +- 3V
/ 60V+
- 10V
25Hz .220kHz 400Hz
P2/400HZ_OFF P4/HOOK_DET (+
5V=ON
HOOK)
P1/PWR_OFF
Current sink