CX06832-13 Просмотр технического описания (PDF) - Conexant Systems

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CX06832-13

V.34/Group 3 High Performance Fax Modem Family

Conexant Systems 

FM336Plus

V.34/Group 3 High Performance Fax Modem Family

Features

(Entire FM336Plus Family−Continued)

• Programmable RLSD turn-on and turn-off thresholds

• Programmable transmit level: 0 to –15 dBm

• Adjustable speaker output to monitor received signal

• DMA support for interrupt lines

• Two 16-byte FIFO data buffers for burst data transfer with extension

up to 255 bytes

• Diagnostic capability

• V.21 Channel 1 Flag detect

• V.21 Channel 2 Flag detect

• +3.3 V operation with +5 V tolerant inputs

• +5 V analog signal interface

• 100-pin PQFP package

• Typical power consumption

− Sleep mode: 20 mW

− Normal mode: 250 mW

Distinguishing Features

(-D90 only)

• 2-wire duplex data modem modes

with receive data rates up to 56 kbps

and send data rates as specified in

the V.34 specification

− V.90 PCM mode

Distinguishing Features (-D / -D90)

• 2-wire duplex data modem modes with send and receive rates up to

33600 bps

− V.34 (33.6 kbps), V.32 bis, V.32, V.22 bis, and V.22

− Bell 212A and 103

• Serial asynchronous data

• Parallel asynchronous data

• In-band secondary channel (V.34 and V.32 bis)

• Automatic Rate Adaptation (ARA) in V.34 duplex and V.32 bis

• Automatic Mode Selection (AMS)

• Digital near-end and far-end echo cancellation

• Bulk delay for satellite transmission

• Receive dynamic range:

− –9 dBm to –43 dBm for V.34, V.32 bis, V.32, V.22 bis, V.22, and V.23

• 511 pattern generation/detection

• V.13 signaling

• Diagnostic capability

− V.54 inter-DCE signaling

− V.54 local analog and remote digital loopback

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