73M1866B-IM/F Maxim Integrated Products, 73M1866B-IM/F Datasheet - Page 8

• Manufacturer Part Number: 73M1866B-IM/F
• Description: MICRODAA SGL PCM HIGHWAY 42-QFN
• Manufacturer: Maxim Integrated Products
• Series: MicroDAA™r

Specifications of 73M1866B-IM/F

• Includes: PCM Highway
• Function: Data Access Arrangement (DAA)
• Interface: PCM, Serial, SPI
• Number Of Circuits: 1
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 42-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Power (watts): -

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