TS7514CFN 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

TS7514CFN

PROGRAMMABLE V.23 MODEM WITH DTMF

STMicroelectronics 

TS7514

DTMF DIALING DATA REGISTER (RDTMF REGISTER)

Address

Data

D7 D6 D5 D4 D3 D2 D1 D0

P001XX00

XX01

XX10

XX11

0 0XX

0 1XX

1 0XX

1 1XX

Notes : This register is not initialized on power-up.

X : don’t care value.

P : 1,0 or X depending upon RPROG content.

Low

697

770

852

941

X

X

X

X

Tone Frequency (Hz)

High

X

X

X

X

1209

1336

1477

1633

DATA REGISTER FOR THE TRANSMISSION ATTENUATOR (RATE REGISTER)

Address

Data

Attenuation Output Transmit On Line Level (dBm)

D7 D6 D5 D4 D3 D2 D1 D0

(dB)

Level (dBm)

Coupler Gain (- 6dB)

P0100000

0

+4

–2

0001

1

+3

0010

2

+2

–4

0011

3

+1

–5

0100

4

0

–6

0101

5

–1

–7

0110

6

–2

–8

0111

7

–3

–9

1000

8

–4

– 10

1001

9

–5

– 11

1010

10

–6

– 12

1011

11

–7

– 13

1100

12

–8

– 14

1101

13

–9

– 15

1110

Infinite

< – 64

< – 70

1111

Infinite*

< – 64 *

< – 70 *

* Power-up configuration.

LINE MONITORING PROGRAMMING REGISTER (RWLO REGISTER)

Address

Data

Line Monitoring In Transmit

Mode Relative Level (dB)

D7 D6 D5 D4 D3 D2 D1 D0

P0110000

– 10

0001

– 20

0010

– 31

0011

– 42

0100

0101

0110

0111

1000

1001

1010

1011

1 1XX

* Power-up configuration.

Note : Signaling frequency is a square wave signal at 2982Hz.

Line Monitoring In Receive

Mode Relative Level (dB)

0

– 10

– 20

– 31

0.42 VPP

– 10dB

– 20dB

– 31dB

< – 60dB*

8/19

Share Link: