ST75C520 datasheet(33/45 Pages) STMICROELECTRONICS

部件名	ST75C520

功能描述	HIGH SPEED FAX MODEM DATA PUMP

PDF	45 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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33 / 45 page

Transmit

SCR1

Data

T10

T11 m in

STA_H

P1s

PN s

PR s

SCR1s

Receive

T13

STA_HR

STA_109F

PR DETs

PN SUC s

STA_109

RxData

PN s

PN DETs

(3)

P2s

T12

(3 )

(3)

(6)

Mode

T10

T11

T12

T13

Unit

V.17

V.17 short

V.29

V.29 short

V.27 4800

V.27 4800 short

V.27 2400

V.27 2400 short

Notes : 1. In the case of V.29 or V.27, PRs and PRDETs bits are not active.

2. PNSUC s indicates the quality of the Rx signal that will give a ber of approximation of 1e

-5.

3. After sending the command SYNC0, all bits are reset.

4. When using long echo protection tone, otherwise 0.

5. When using short echo protection tone, otherwise 0.

6. STA-106 is set at the end of T6 and reset at the beginning of T10.

7. After sending the command SYNC1, this bit is set.

ST75C520

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ST75C520 数据表(PDF) 33 Page - STMicroelectronics

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