73M1866B/73M1966B Data Sheet
DS_1x66B_001
2 Pinout
The 73M1906B and the 73M1916 are supplied as 20-pin TSSOP packages and as 32-pin QFN packages.
2.1 73M1906B 20-Pin TSSOP Pinout
Figure 2 shows the 73M1906B 20-pin TSSOP pinout.
1
2
3
20
19
18
17
16
15
14
13
12
11
CS
VPD
DR
SCLK
INT
SDO
SDI
4
DX
5
6
FS
SDIT
73M1906B
PCLKO
RST
VPT
PRP
7
PCLKI
8
VNA/VND
AOUT
9
PRM
VNT
10
VPA
Figure 2: 73M1906B 20-Pin TSSOP Pinout
Table 1 describes the pin functions for the device. Decoupling capacitors on the power supplies should
be included for each pair of supply pins.
Table 1: 73M1906B 20-Pin TSSOP Pin Definitions
Pin
Pin
Type
Description
SPI chip select (active low)
Number Name
1
I
CS
2
3
VPD
DR
PWRI
Positive digital supply
I
PCM transmit data sent to the D to A
PCM received data from the A to D
PCM frame synchronization
PCM clock output
4
DX
O
5
I/O
FS
6
PCLKO
PCLKI
VNA/VND
AOUT
VPA
VNT
PRM
PRP
VPT
O
7
I
GND
O
PCM clock in
8
Negative analog/digital ground
Audio output – must be buffered for speaker
Positive analog supply
9
10
11
12
13
14
15
16
17
18
19
20
PWRI
GND
I/O
I/O
PWRI
I
Negative transformer supply
Transformer primary minus
Transformer primary plus
Positive transformer supply
Hardware reset (active low)
SPI data out for daisy chain mode
SPI data in
RST
SDIT
SDI
O
I
SDO
INT
SCLK
O
SPI data out
O
Interrupt / ring detect (active low – open drain)
SPI clock
I
8
Rev. 1.6
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
