MT8880CN Ver la hoja de datos (PDF) - Zarlink Semiconductor Inc

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MT8880CN

ISO²-CMOS Integrated DTMF Transceiver

Zarlink Semiconductor Inc 

ISO2-CMOS MT8880C

AC Electrical Characteristics† - Call Progress - Voltages are with respect to ground (VSS) unless otherwise stated.

Characteristics

Sym Min Typ‡ Max

Units

Notes*

1 Lower freq. (ACCEPT)

fLA

320

Hz

@ -25 dBm

2 Upper freq. (ACCEPT)

fHA

510

Hz

@ -25 dBm

3 Lower freq. (REJECT)

fLR

290

Hz

@ -25 dBm

4 Upper freq. (REJECT)

fHR

540

Hz

@ -25 dBm

5 Call progress tone detect level

-30

(total power)

dBm

† Characteristics are over recommended operating conditions unless otherwise stated

‡ Typical figures are at 25°C, VDD = 5V, and for design aid only: not guaranteed and not subject to production testing

* See “Notes” AC Electrical Characteristics Tables

AC Electrical Characteristics† - Voltages are with respect to ground (VSS) unless otherwise stated.

Characteristics

Sym Min Typ‡ Max Units

Conditions

1

Tone present detect time

tDP

3

2

Tone absent detect time

tDA

0.5

3

Tone duration accept

tREC

4 R Tone duration reject

5 X Minimum interdigit pause duration

tREC

20

tID

6

Maximum tone drop-out duration

tDO

20

7

Delay St to b3

tPStb3

8

Delay St to RX0-RX3

tPStRX

9

Tone burst duration

tBST

50

10 T Tone pause duration

11 X Tone burst duration (extended)

tPS

50

tBSTE 100

12

Tone pause duration (extended)

tPSE

100

13

High group output level

14 T Low group output level

O

15 N Pre-emphasis

E

16

Output distortion (Single Tone)

VHOUT -6.1

VLOUT -8.1

dBP

0

THD

O

U

17 T Frequency deviation

fD

18

Output load resistance

RLT

10

19

Φ2 cycle period

M

20 P Φ2 high pulse width

21 U Φ2 low pulse width

tCYC

tCH

tCL

22 I Φ2 rise and fall time

N

tR, tF

23 T Address, R/W hold time

tAH,tRWH 26

E

24 R Address, R/W setup time (before Φ2) tAS,tRWS 23

25

F

A

Data hold time (read)

tDHR

22

26 C Φ2 to valid data delay (read)

E

tDDR

27

Data setup time (write)

tDSW

45

11

4

13

8

2

-35

±0.7

250

115

110

14

8.5

40

40

52

52

104

104

-2.1

-4.1

3

±1.5

50

25

100

ms Note 12

ms Note 12

ms User adjustable#

ms User adjustable#

ms User adjustable#

ms User adjustable#

µs See figure 9

µs See figure 9

ms DTMF mode

ms DTMF mode

ms Call Progress mode

ms Call Progress mode

dBm

dBm

dB

dB

%

kΩ

RL=10kΩ

RL=10kΩ

RL=10kΩ

25 kHz Bandwidth

RL=10kΩ

fC=3.579545 MHz

ns

ns

ns

ns

ns

ns

ns *

ns 200 pF load

ns

15

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