TDA8051T 데이터 시트보기 (PDF) - Philips Electronics

부품명

상세내역

제조사

TDA8051T

QPSK receiver

Philips Electronics 

Philips Semiconductors

QPSK receiver

Product specification

TDA8051

SYMBOL

PARAMETER

CONDITIONS

MIN. TYP. MAX.

UNIT

3-wire bus

VIL

input Low level

guaranteed by design

−

− 0.8

V

VIH

input High level

guaranteed by design

2.4

−−

V

fclk

clock frequency

guaranteed by design

−

330 −

kHz

tsu

input data to CLK set-up time guaranteed by design

−

2−

µs

th

input data to CLK hold time guaranteed by design

−

1−

µs

td(strt)

delay to rising clock edge

guaranteed by design

−

3−

µs

td(stp)

delay from last clock edge guaranteed by design

−

3−

µs

Notes

1. The frequency range of the receiver is 44 to 130 MHz. The local oscillator (LO) operates at twice the output

frequency (88 to 260 MHz). Frequency control by varicap diodes allows a variation over one octave.

2. Crystal oscillator. The crystal oscillator uses a 4, 2 or 1 MHz crystal in series with a capacitor. The crystal is parallel

resonant with load capacitance of 18 to 20 pF. Connection to VCC is preferred but can also be to GND.

Note to characteristics

handbook, full pagewidth

105 MHz

DEMOD_IN

+5 V

103 MHz

×

0¡ 90¡

×

I_OUT1

VCO 200 MHz

Q_OUT1

10 dB above max. input level

= 20 dBmVrms each tone

maximum

input

level

nominal

output level

= 22 dBmVrms

each tone

+10 dB = 32 dBmVrms each tone

IM3 IM2

103

105

f (MHz)

12 3

5

7 f (MHz)

FCE172

Fig.3 IM2 and IM3 measurement of the demodulator.

1999 Aug 20

10

Share Link: