PCD3312 Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Fabricante

PCD3312

DTMF/modem/musical-tone generators

Philips Electronics 

Philips Semiconductors

DTMF/modem/musical-tone generators

Product specification

PCD3311C; PCD3312C

SYMBOL

PARAMETER

MIN.

TYP

MAX.

UNIT

TONE output (see test circuit, Fig.15)

VHG(RMS)

VLG(RMS)

VDC

Gv

THD

DTMF output voltage (RMS), HIGH group

DTMF output voltage (RMS), LOW group

DC voltage level

voltage gain (pre-emphasis) of group

Total Harmonic Distortion; Tamb = 25 °C

dual tone (note 3)

modem tone (note 4)

158

192

205

mV

125

150

160

mV

−

1⁄2 VDD

−

V

1.85

2.10

2.35

dB

−

−25

−

dB

−

−29

−

dB

Zo

output impedance

−

0.1

0.5

kΩ

OSCI input

VOSC(p-p) maximum allowable amplitude at OSCI

−

−

VDD − VSS V

Timing (VDD = 3 V)

tOSC(ON)

tTONE(ON)

tSPW

tDS

tDH

oscillator start-up time

TONE start-up time (note 5)

STROBE pulse width (note 6)

data set-up time (note 6)

data hold time (note 6)

−

3

−

ms

−

0.5

−

ms

400

−

−

ns

150

−

−

ns

100

−

−

ns

Notes

1. Oscillator ON; VDD = 3 V; crystal connected between OSCI and OSCO; D0/SCL and D1/SDA connected via

resistance of 5.6 kΩ to VDD; all other pins left open.

2. As note 1, but with oscillator OFF.

3. Related to the level of the LOW group frequency component, according to CEPT recommendations.

4. Related to the level of the fundamental frequency.

5. Oscillator must be running.

6. Values are referenced to the 10% and 90% levels of the relevant pulse amplitudes, with a total voltage swing from

VSS to VDD.

1996 Nov 21

handbook, halfpage

VDD

TONE

PCD3311C

PCD3312C

VSS

1 µF

50 pF

10 kΩ

MGG513

Fig.15 TONE output test circuit.

18

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