參數(shù)資料
型號： ST75C540FP-A
廠商： 意法半導體
英文描述： SUPER INTEGRATED DEVICESWITH DSP, AFE & MEMORIES FORTELEPHONY,MODEM, FAXOVERINTERNET& POTSLINES
中文描述： 超級綜合DEVICESWITH數(shù)字信號處理器，模擬前端
文件頁數(shù)： 4/84頁
文件大?。?/td> 599K
代理商： ST75C540FP-A
I - DETAILED FEATURES
Single Chip Fax
- ITU-TV.17, V.29, V.27ter,V.21with Fax support
- V.17, V.29 (T104), V.27ter short trains,
V.33 half-duplex
- V.21 flag detection and 4 tone detection during
high speedreception modes
- V.21 flag detection, DTMF detection and 4
tone detectionduringV.21channel 2 reception
modes
- Programmable call progress and call waiting
detection
- Parallel data handling
- HDLC and UART framingsupport
- 1700Hz and 1800Hzcarrier
- Full implementation of the V.17, V.33, V.29 and
V.27handshakes
- 0 to -15dBmprogrammable transmit power
- 0to-47dBmreceiverdynamicrange(ST75C530)
0 to-45dBmreceiverdynamicrange(ST75C540)
Full DuplexData Modem
- ITU-TV.32bis, V.32 (14400, 12000, 9600, 7200,
4800bps) (*)
- Maximum round trip delay : 1.2s (satellite hops)
(*)
- Up to 10Hzof phaseroll on far end echo (*)
- ITU-TV.22bis, V.22 (2400, 1200bps)(*)
- V.32bis/V.32/V.22bis/V.22automode (*)
- ITU- V.23,V.21, bell103 full-duplex,
Bell202 demodulator
- -10 to -25dBm programmabletransmit power
- -10to-38dBmreceiverdynamicrange(*)
- HDLC and UART framingsupport
- Train based on qualityline sampling (*)
(*)ST75C540 only
Digital AnsweringMachine
- Low bit rate speech coder (4800bps)
- Variable playback speed (+50%to -50%)
- ARAMcompatibility(errorcorrection)
- ADPCM 32, 24, 16Kbps
- Line echo cancellation
- Voiceactivity detector
- ConcurrentDTMF and tone detection
Handset Mode
- Rx and Tx AGC versus line current for line
losses compensation comply with most of
country regulations
- Dynamic limiter in transmit path to prevent
distortion
- Two way conversationrecording
Hands-free Mode
- Full duplex speakerphoneusing LMSadaptative
filtering including line echo cancellation and
acoustic echo cancellation
- Rx and Tx AGC versus line current for line
losses compensation comply with most of
country regulations
- Dynamic limiter in transmit path to prevent
distortion
- Loudspeakervolume control
- Two way conversationrecording
ExtendedModes of Operations
- Programmablering detection
- 16 programmabletone detectors
- Tone and DTMF generators
- Caller ID reception
- Transparentmode allowingdirecttransferof Mo-
dem AFE and audio AFE samples to and from
host processor for soft Modem applicationsand
sound files playing
- DTMF detection
- Wide dynamicrange (>48dB)
VersatileInterfaces
- Parallel 128 x 8-bit dual port RAM
- Generalpurpose16 I/Oports
- 2 relay drive outputs
- Full diagnosticcapability
- Dual 8-bit DAC for constellationdisplay
Single 5V Power Supply
- Typicalactive power consumption:
650mW (ST75C530),725mW (ST75C540)
- Low power mode < 30mW
ST75C530 - ST75C540
4/84
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