Datasheet

DS_1x66B_001 73M1866B/73M1966B Data Sheet
Rev. 1.6 11
Pin
Number
Pin Name
Type Description
17 PRM I/O Transformer primary minus
18 PRP I/O Transformer primary plus
19 VPT PWR Positive transformer supply
20 VPD PWR Positive digital supply
21
RST
I
Hardware reset (active low)
22 SDIT O SPI data out for daisy-chain mode
23 SDI I SPI data in
24 SDO O SPI data out
25 GPIO5
I/O Configurable input/output pin
26 VND
GND Negative digital ground
27 INT
O Interrupt / ring detect (active low – open drain)
28 SCLK
I SPI clock
29 CS
I SPI chip select (active low)
30 VPD PWR Positive digital supply
31 DR I PCM transmit data sent to the D to A
32 GPIO6 I/O Configurable input/output pin