參數(shù)資料
型號: 73M1903
英文描述: Low-Cost, 7ns, Low-Power Voltage Comparators
中文描述: 軟調(diào)制解調(diào)器外匯局
文件頁數(shù): 2/2頁
文件大?。?/td> 190K
代理商: 73M1903
TDK Semiconductor Corp.
2642 Michelle Dr.
Tustin, CA 92780
714-508-8800 (phone) 714-508-8877 (fax)
support@tdksemiconductor.com
www.tdksemiconductor.com
No responsibility is assumed by TDK Semiconductor Corporation for use of this product nor for any infringements of
patents and trademarks or other rights of third parties resulting from its use. No license is granted under any patents,
patent rights or trademarks of TDK Semiconductor Corporation, and the company reserves the right to make changes
in specifications at any time without notice. Accordingly, the reader is cautioned to verify that the data sheet is current
before placing orders.
2003 TDK Semiconductor Corporation
3/03 - rev 1.0
73M1903 Block Diagram
Receive
Mux/
Filters
Transmit
Drivers/
Filters
TXAP
TXAN
(HYBRID)
DAA
Controls
RXAP
RXAN
HOOK
Analog
Sigma
Delta
Control
Registers
Ref.
Clocks
Control
Logic
DAC
VBG
Serial
Port
SCLK
SDIN
SDOUT
FSB
Crystal
GPIO
Fully differential receiver for low-noise, low-level reception
Cancels common mode noise from environmental
sources such as power lines
Wide receive dynamic range
Flexible input reference frequency
Accepts a range of crystal or external reference clock values
between 9-40MHz.
Eliminates the need for a dedicated crystal oscillator in most
applications
5V tolerant I/O on selected pins
All digital interface pins can be interfaced to 5v w/o level shifting
Power supply
3.0v to 3.6v
Industrial temperature range
-40oC to 85oC operating
Pacakages
32-pin TQFP pin-compatible with 73M2901CL
20-pin SOIC for cost sensitive applications
Multi-mode Modem Analog Front End (MAFE)
Supports modem data rates from 50bps to 56Kbps (V.92)
Includes drivers and modem hybrid circuit to simplify modem
designs
DSP synchronous serial interface master operation
Uses a standard DSP serial interface for communication
Supports optional timing modes
Supplies frame sync and serial timing clock to host
Programmable sample rates
Various rates supported by programming prescaler NCO
and PLL NCO
Fully differential transmitter with high-current transformer
drivers
Class AB drivers for low quiescent current
Directly interface to transformer through impedance matching
resistors
Driver current proportional to load requirements
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