PCF50732 datasheet(22/64 Pages) PHILIPS

No. de pieza	PCF50732

Descripción Electrónicos	Baseband and audio interface for GSM

PDF	64 Pages

Scroll/Zoom	100%

Fabricante Electrónico	PHILIPS [NXP Semiconductors]

Página de inicio	http://www.nxp.com

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22 / 64 page

1999 May 03

Philips Semiconductors

Objective speciﬁcation

Baseband and audio interface for GSM

PCF50732

After conversion the corresponding bit in the AUXADC flag

during an auxiliary analog-to-digital conversion cycle, the

auxiliary conversion is interrupted and restarted when

RXON returns LOW, indicating no receive burst activity.

When register AUXADC1A is read, a battery voltage

measurement during a transmission burst is executed.

The PCF50732 waits for a rising edge of TXON, and

powers up the receive path. After the settling time of the

ADC added to the programmed AUXADC conversion

delay (in 48 MCLK cycles) has elapsed, valid data is

available and stored in the AUXADC1A register.

Fig.10 Typical transfer characteristics of AUXADC (output code as function of differential input voltage).

handbook, full pagewidth

MGR996

1440

0.2

output code

(LSB)

offset

at 0 V

gain tolerance

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

Vin (V)

PCF50732 Datasheet(PDF) 22 Page - NXP Semiconductors