73M2901

更新时间： 2024-02-13 18:32:54

品牌	Logo	应用领域
东电化 - TDK		调制解调器
页数	文件大小	规格书
17页	316K
描述
Advanced Single Chip Modem

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技术参数
数据手册

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73M2901 技术参数

生命周期：	Obsolete	包装说明：	LEAD FREE, PLASTIC, LCC-32
Reach Compliance Code：	unknown	风险等级：	5.56
数据速率：	2.4 Mbps	JESD-30 代码：	R-PQCC-J32
长度：	13.995 mm	功能数量：	1
端子数量：	32	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	QCCJ	封装形状：	RECTANGULAR
封装形式：	CHIP CARRIER	认证状态：	Not Qualified
座面最大高度：	3.56 mm	标称供电电压：	3.3 V
表面贴装：	YES	电信集成电路类型：	MODEM
温度等级：	INDUSTRIAL	端子形式：	J BEND
端子节距：	1.27 mm	端子位置：	QUAD
宽度：	11.455 mm	Base Number Matches：	1

73M2901 数据手册

73M2901/3.3V

Advanced Single

Chip Modem

RESET

ASYNCHRONOUS AND SYNCHRONOUS SERIAL

DATA INTERFACE

A reset is accomplished by holding the RESET pin

high. To ensure a proper power-on reset, the reset

pin must be held high for a minimum of 3µs. At

power on, the voltage at VPD, VPA, and RESET

must come up at the same time for a proper reset.

The serial data interface consists of the TXD and

RXD data paths (LSBit shifted in and out first,

respectively); and the TXCLK and RXCLK serial

clock outputs associated with the data pins;

CTS/RTS flow control; DCR, DSR and DTR. In

synchronous mode, the data is passed at the bit rate

(tolerance is +1%, -2.5%).

PIN DESCRIPTIONS

POWER PIN DESCRIPTION

PIN NAME

VPA

VNA

32-PIN 44-PIN TYPE DESCRIPTION

Positive analog voltage (+ Analog Supply)

Negative analog voltage. (Analog Ground)

Positive digital voltage (+ Digital Supply)

VPD

6, 25,

2,12,

27, 33

VND

5, 22, 11, 24,

Negative digital voltage. (Digital Ground)

26 44, 28

ANALOG INTERFACE PIN DESCRIPTION

PIN NAME

RXA

TXAN

TXAP

HBDEN

32-PIN 44-PIN TYPE DESCRIPTION

Receive analog data

Transmit Analog -

Transmit Analog +

2w/4w hybrid driver enable pin

0 = Driver configured for 50kΩ or greater load (Tie to VND)

1 = Driver configured for driving line-coupling transformer (Tie to

VPD)

VBG

VREF

Analog Band Gap voltage reference pin (0.1µF to VNA)

Analog reference voltage pin (0.1µF to VNA)

EXTERNAL INTERRUPTS PIN DESCRIPTIONS

PIN NAME

RING

ASRCH

DTR

32-PIN 44-PIN TYPE DESCRIPTION

External interrupt – Line interface ring detection circuitry input

External interrupt – Autobaud detection, connected to TXD

External interrupt – DTE DTR signal input

1 234 5 6 7...17

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