TDA5051AT/C1,518 데이터 시트보기 (PDF) - NXP Semiconductors.

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TDA5051AT/C1,518

Home automation modem

NXP Semiconductors. 

NXP Semiconductors

13. Test information

TDA5051A

Home automation modem

pulse

generator G

300 Hz

50 %

DATA_IN 1

DATA_OUT

2

TDA5051A

(to be tested)

TX_OUT 1 μF

10

RX_IN 10 nF

14

7

8

Y1

Y2

30 Ω

XTAL

OSCILLOSCOPE

fosc

DATA_IN

TX_OUT/RX_IN

DATA_OUT

td(dem)(su)

td(dem)(h)

Fig 21. Test set-up for measuring demodulation delay

002aaf051

coupling network(3)

CISPR16 network(4)

OSC1

7

TX_OUT

10

TDA5051A

10 μF

33 nF

33 nF 47 μH

47 μH

250 nF

8

OSC2

1

12, 5, 9 AGND, DGND, APGND

13, 3, 11

DATA_IN VDDA, VDDD, VDDAP

50 μH

5Ω

50 Ω

(1) (2)

G

+5 V

POWER

SUPPLY

250 nF

50 μH

5Ω

SPECTRUM

ANALYZER

50 Ω

002aaf052

(1) Square wave TTL signal 300 Hz, duty factor = 50 % for measuring signal bandwidth

(see Figure 3).

(2) DATA_IN + LOW for measuring total harmonic distortion (see Figure 3).

(3) Tuned for fcr = 132.5 kHz.

(4) The CISPR16 network provides a −6 dB attenuation.

Fig 22. Test set-up for measuring THD and bandwidth of the TX_OUT signal

TDA5051A

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 5 — 13 January 2011

© NXP B.V. 2011. All rights reserved.

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