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參數資料
| 型號： | 73M1903C-IM/F |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC32 |
| 封裝： | LEAD FREE, QFN-32 |
| 文件頁數： | 1/48頁 |
| 文件大小： | 487K |
| 代理商： | 73M1903C-IM/F |
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73M1903C
Modem Analog Front End
Simplifying System Integration
TM
DATA SHEET
DS_1903C_033
March 2010
Rev. 5.0
1
DESCRIPTION
The 73M1903C Analog Front End (AFE) IC includes
fully differential hybrid driver outputs, which connect to
the telephone line interface through a transformer-
based DAA. The receive pins are also fully differential
for maximum flexibility and performance. This
arrangement allows for the design of a high
performance hybrid circuit to improve signal to noise
performance under low receive level conditions, and
compatibility with any standard transformer intended
for PSTN communications applications.
The device incorporates a programmable sample rate
circuit to support soft modem and DSP based
implementations of all speeds up to V.92 (56 kbps).
The sampling rates supported are from 7.2 kHz to
16.0 kHz by programming the pre-scaler NCO and the
PLL NCO.
The 73M1903C device incorporates a digital host
interface that is compatible with the serial ports found
on most commercially available DSPs and processors
and exchanges both payload and control information
with the host. This interface can be configured as a
single master/slave mode or as a daisy chain mode
that allows the user to connect up to eight 73M1903C
devices to a single host for multi Analog Front End
applications, such as, central server modems.
Costs saving features of the device include an input
reference frequency circuit, which accepts a range of
crystals from 4.9-27 MHz. It also accepts external
reference clock values between 1 MHz and 40 MHz
generated by the host processor. In most
applications, this eliminates the need for a dedicated
crystal oscillator and reduces the bill of materials
(BOM).
The 73M1903C also supports two analog loop back
and one digital loop back test modes.
FEATURES
Two pairs of software selectable transmit
differential outputs for worldwide impedance
driver implementations.
Up to 56 kbps (V.92) performance
Programmable sample rates (7.2-16.0 kHz)
Reference clock range of 1-40 MHz
Crystal frequency range of 4.9-27 MHz
Master or slave mode operation
Daisy chain configurable synchronous serial
Host interface
Low power modes
Fully differential receiver and transmitter
Drivers for transformer interface
3.0 V – 3.6 V operation
5 V tolerant I/O
Industrial temperature range (-40 to +85
°C)
JATE compliant transmit spectrum
Package option: 32-pin QFN
APPLICATIONS
Central site server modems
Set Top Boxes
Personal Video Recorders (PVR)
Multifunction Peripherals (MFP)
Fax Machines
Internet Appliances
Game Consoles
Point of Sale Terminals
Automatic Teller Machines
Speaker Phones
Digital Answering Machines
RF Modems
Transmit
Drivers/
Filters
Receiver
MUX/
Filters
DAA
controls
Analog
Sigma
Delta
DAC
Ref.
Control
Registers
Control
Logic
Clock
Serial
Port
(HYBRID)
TXAP1
TXAN1
RXAP
RXAN
GPIO
HOOK
SCLK
SDIN
SDOUT
FS
FSD
Crystal
VBG
TXAP2
TXAN2
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 73M1903C-IMR/F | 功能描述:電信線路管理 IC Modem Analog Front End RoHS:否 制造商:STMicroelectronics 產品: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 |
| 73M1903C-IMR/F1 | 功能描述:電信線路管理 IC RoHS:否 制造商:STMicroelectronics 產品: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 |
| 73M1903-EVM-600 | 功能描述:網絡開發工具 73M1903 w/Ppu & 600 Ohm Term-Usa & Japan RoHS:否 制造商:Rabbit Semiconductor 產品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數據速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
| 73M1903-EVM-ETSI | 功能描述:網絡開發工具 73M1903 w/Etsi 203 Complex Imped. Term RoHS:否 制造商:Rabbit Semiconductor 產品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數據速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
| 73M1903-EVM-WW | 功能描述:BOARD DEMO 73M1903 PPU WORLDWIDE RoHS:是 類別:編程器，開發系統 >> 評估演示板和套件 系列:- 產品培訓模塊: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 LED 已供物品:板 |
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