参数资料
型号: 73M1906B-IM/F
厂商: Maxim Integrated Products
文件页数: 78/88页
文件大小: 0K
描述: MICRODAA SET FXO OF VOIP 32-QFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 490
系列: *
73M1866B/73M1966B Data Sheet
DS_1x66B_001
8
Rev. 1.6
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.
73M1906B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CS
VPD
DR
DX
FS
PCLKO
PCLKI
VNA/VND
AOUT
VPA
VNT
SCLK
SDI
SDIT
SDO
RST
PRM
PRP
VPT
INT
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
Number
Pin
Name
Type
Description
1
CS
I
SPI chip select (active low)
2
VPD
PWRI
Positive digital supply
3
DR
I
PCM transmit data sent to the D to A
4
DX
O
PCM received data from the A to D
5
FS
I/O
PCM frame synchronization
6
PCLKO
O
PCM clock output
7
PCLKI
I
PCM clock in
8
VNA/VND
GND
Negative analog/digital ground
9
AOUT
O
Audio output – must be buffered for speaker
10
VPA
PWRI
Positive analog supply
11
VNT
GND
Negative transformer supply
12
PRM
I/O
Transformer primary minus
13
PRP
I/O
Transformer primary plus
14
VPT
PWRI
Positive transformer supply
15
RST
I
Hardware reset (active low)
16
SDIT
O
SPI data out for daisy chain mode
17
SDI
I
SPI data in
18
SDO
O
SPI data out
19
INT
O
Interrupt / ring detect (active low – open drain)
20
SCLK
I
SPI clock
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