DS_1x66B_001
73M1866B/73M1966B Data Sheet
2.2
73M1916 20-Pin TSSOP Pinout
DCI
RGN
RGP
OFH
VNX
SCP
MID
VPX
SRE
SRB
1
2
3
4
5
20
19
18
17
16
DCG
DCS
DCD
TXM
RXM
RXP
VPS
VNS
ACS
VBG
73M1916
6
7
8
9
10
15
14
13
12
11
Figure 3: 73M1916 20-Pin TSSOP Pinout
be included for each pair of supply pins.
Table 2: 73M1916 20-Pin TSSOP Pin Definitions
Pin
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin Name
DCI
RGN
RGP
OFH
VNX
SCP
MID
VPX
SRE
SRB
VBG
ACS
VNS
VPS
RXP
RXM
TXM
DCD
DCS
DCG
Type
I
I
I
O
GND
I/O
I/O
PWR
I
O
O
I
GND
PWRO
I
I
O
O
I
O
Description
DC loop input
Ring detect negative voltage input
Ring detect positive voltage input
Off-hook control
Negative supply voltage (line side of the barrier)
Positive side of the secondary pulse transformer winding
Charge pump midpoint
Supply from the barrier
Voltage regulator sense
Voltage regulator drive
VBG bypass, connect to 0.1 μF capacitor to VNS
AC current sense
Analog negative supply voltage
Analog positive supply voltage (output)
Receive plus – signal input
Receive minus – signal input
Transmit minus – transhybrid cancellation output
DC loop output
DC loop current sense
DC loop control
Rev. 1.6
9
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
