參數(shù)資料
型號： 73M1903C-IMR/F
廠商： Maxim Integrated Products
文件頁數(shù)： 22/48頁
文件大?。?/td> 0K
描述： IC MODEM AFE MULTIREGIONAL 32QFN
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 2,500
通道數(shù)： 2
電壓 - 電源，模擬： 3 V ~ 3.6 V
電壓 - 電源，數(shù)字： 3 V ~ 3.6 V
封裝/外殼： 32-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 32-QFN（5x5）
包裝： 帶卷 (TR)
DS_1903C_033
73M1903C Data Sheet
Rev. 5.0
29
7
Test Modes
There are two loop back test modes that affect the configuration of the analog front end. The internal
loop back mode connects the serial bit stream generated by the analog receiver to the input of the analog
transmitter. This loop back mode is similar to a remote analog loop back mode and can be used to
evaluate the operation of the analog circuits. When using this loop back mode, the TXAN/TXAP pins
should not be externally coupled to the RXAP/RXAN pins. Set bit 4 (INTLB) in register 01h (CTRL2) to
enter this loop back mode.
The second loop back test mode is the external loop back mode, or local analog loop back mode. In this
mode, the analog transmitter outputs are fed back into the input of the analog receiver. Set bit 5 (ANALB)
in register 01h (CTRL2) to enter this loop back mode. In this mode, TBS (transmit bit stream) must be
kept to below a value that corresponds to less than 1.16V/2.31V x -6dB = 25% of the full scale code of +/-
32768 at TXD in order to ensure that the receiver is not overdriven beyond the maximum of 1.16 Vpkpk
diff for Rxg=11(0 dB) setting. See Table 17 for the maximum allowed transmit levels. Check the
transmitted data against received data via serial interface. This tests the functionality of essentially all
blocks of the chip.
There is a third loopback mode that bypasses the analog circuits entirely. Digital loop back forces the
transmitter digital serial bit stream (from DSDM) to be routed into the digital receiver’s sinc
3 filters. Set bit
6 (DIGLB) in register 01h (CTRL2) to enter this loop back mode.
7.1
Power Saving Modes
The 73M1903C has only one power conservation mode. When the ENFE, bit 7 in register 00h, is zero
the clocks to the filters and the analog are turned off. The transmit pins output a nominal 80 k
impedance. The clock to the serial port is running and the GPIO and other registers can be read or
updated.
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73M1903-EVM-600 功能描述:網(wǎng)絡(luò)開發(fā)工具 73M1903 w/Ppu & 600 Ohm Term-Usa & Japan RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V
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73M1903-EVM-WW 功能描述:BOARD DEMO 73M1903 PPU WORLDWIDE RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- 主要目的:電源管理，電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態(tài) LED 已供物品:板
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73M1903-IM/F1 功能描述:電信線路管理 IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
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