1999 May 31

2

Philips Semiconductors

Product specification

Home automation modem

TDA5051A

FEATURES

• Full digital carrier generation and shaping

• Modulation/demodulation frequency set by clock

adjustment, from microcontroller or on-chip oscillator

• High clock rate of 6-bit A/D (Digital to Analog) converter

for rejection of aliasing components

• Fully integrated output power stage with overload

protection

• Automatic Gain Control (AGC) at receiver input

• 8-bit A/D (Analog to Analog) converter and narrow

digital filtering

• Digital demodulation delivering baseband data

• Easy compliance with EN50065-1 with simple coupling

network

• Few external components for low cost applications

• SO16 plastic package.

APPLICATIONS

• Home appliance control (air conditioning, shutters,

lighting, alarms and so on)

• Energy/heating control

• Amplitude Shift Keying (ASK) data transmission using

the home power network.

GENERAL DESCRIPTION

The TDA5051A is a modem IC, specifically dedicated to

ASK transmission by means of the home power supply

network, at 600 or 1200 baud data rate. It operates from a

single 5 V supply.

QUICK REFERENCE DATA

Notes

1. Frequency range corresponding to the EN50065-1 band. However, the modem can operate at any lower oscillator

frequency.

2. The minimum value can be improved by using an external amplifier, see application diagrams Figs 22 and 23.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

supply voltage

4.75

5.0

5.25

V

total supply current

reception mode

−

28

38

mA

47

68

mA

power-down mode

−

19

25

mA

carrier frequency

note 1

95

132.5

148.5

kHz

oscillator frequency

6.08

8.48

9.504

MHz

output carrier signal on CISPR16 load

(RMS value)

120

−

122

dB

µV

input signal (RMS value)

note 2

82

−

122

dB

µV

THD

total harmonic distortion on CISPR16

load with coupling network

−−55

−

dB

load impedance

1

30

−Ω

BR

baud rate

−

600

1200

bits/s

ambient temperature

0

−

70

°C