参数资料
型号: 73M2901CE-IMR/F
厂商: Maxim Integrated Products
文件页数: 25/27页
文件大小: 0K
描述: IC MODEM 3.3V V.22BIS 32-QFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
数据格式: V.21,V.22,V.23,Bell 103,Bell 212A
波特率: 300 ~ 9.6k
电源电压: 2.7 V ~ 3.6 V
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-QFN(5x5)
包装: 带卷 (TR)
DS_2901CE_031
73M2901CE Data Sheet
Rev. 3.4
7
3
Pin Descriptions
3.1
Power Pins
Pin Name
Pin Number
Type
Description
VPA
10
I
Positive analog voltage (analog supply)
VNA
16
I
Negative analog voltage (analog ground)
VPD
2, 20, 25
I
Positive digital voltage (digital supply)
VND
1, 17, 22
I
Negative digital voltage (digital ground)
3.2
Analog Interface Pins
Pin Name
Pin Number
Type
Description
RXA
15
I
Receive analog input
TXAN
11
O
Transmit analog - output
TXAP
12
O
Transmit analog + output
VBG
14
O
Analog Band Gap voltage reference (0.1
F to VNA). This pin
must not be connected to external circuitry other than the
decoupling capacitor.
VREF
13
O
Analog reference voltage (0.1
F to VNA)
3.3
Digital Interface Pins
Pin Name
Pin Number
Type
Description
RESET
9
I
Reset
RXCLK
27
O
Receive data synchronous clock, valid on rising edge
TXCLK
24
O
Transmit data synchronous clock, valid on rising edge
TXD
23
I
Serial data input from DTE
RXD
26
O
Serial output to DTE
USR10
8
I/O
Programmable I/O port. This pin can optionally be used to
control an external switch for external Line In Use circuitry.
USR11
7
I/O
Programmable I/O port. This pin can optionally be used to
control an external switch for caller ID operation.
RTS
6
I
Request to send
CTS
5
O
Clear to send
DSR
4
O
Data set ready
DCD
3
O
Data carrier detect
RI
32
O
Ring indicator
RELAY
31
O
Relay driver output
USR20
29
I/O
Programmable I/O port
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