73M1822/73M1922 Data Sheet
DS_1x22_001
2 Pinout
The 73M1922 consists of two devices, the 73M1902 and the 73M1912, which are available as 20-pin
TSSOP packages and as 32-pin QFN package sets.
2.1
73M1902 20-Pin TSSOP Pinout
FSD
FS
VND
VPD/VPPLL
OSCIN/MCLK
OSCOUT
VNPLL/VNA
AOUT
TYPE
VPA/VPM
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
SDOUT
SDIN
VND
SCLK
INT/RGDT
VPT/VPD
PRP
PRM
M/S
VNMVNT
73M1902
15
14
13
12
11
Figure 2: 73M1902 20-Pin TSSOP Pinout
included for each pair of supply pins.
Table 1: 73M1902 20-Pin TSSOP Pin Definitions
Pin
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
Pin
Name
FSD
FS
VND
VPD/VPPLL
OSCIN/MCLK
OSCOUT
VNA/VNPLL
AOUT
Type
O
O
GND
PWR
I
O
GND
O
I
PWR
GND
I
I/O
Description
Frame synchronization (FS) delayed
Frame synchronization
Negative digital ground
Positive digital/PLL supply
Crystal oscillator circuit input pin.
Input from an external clock source. Crystal frequency range
is 9 MHz – 27 MHz.
Crystal oscillator output pin. (N.C. with external oscillator)
Negative analog/PLL ground
Call progress audio output
Type of frame sync. 0 = late (mode0), 1 = early (mode1).
Weak-pulled high – default = early.
Positive analog supply
Negative barrier interface supply / negative transformer supply
Master/slave control, reset at a transition.
Pulse transformer primary minus
TYPE
VPA/VPM
VNM/VNT
M/S
PRM
8
Rev. 1.6
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
