DS_1x22_001
73M1822/73M1922 Data Sheet
14
15
PRP
I/O
Pulse transformer primary plus
VPD
PWR
Positive digital supply, positive transformer supply
Ring detection indicator or other Interrupts
Open drain
16
O
INT/RGDT
Serial interface clock. With continuous SCLK selected,
Frequency = 256∗Fs (=1.8432MHz for Fs=7.2kHz, 2.048MHz
for Fs=8kHz)
17
SCLK
O
18
19
20
VND
GND
Negative digital ground
SDIN
I
Serial data input (or output from the controller to 73M1902)
Serial data output (or input to the controller from 73M1902)
SDOUT
O
Rev. 1.6
9