Philips TDA5051A User Manual

1999 May 31

2

•

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.

•

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.

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.

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.

V

DD

supply voltage

4.75

5.0

5.25

V

I

DD(tot)

total supply current

f

osc

= 8.48 MHz

reception mode

−

28

38

mA

transmission mode (DATA

IN

= 0)

Z

L

= 30

Ω

−

47

68

mA

power-down mode

−

19

25

mA

f

cr

carrier frequency

note 1

95

132.5

148.5

kHz

f

osc

oscillator frequency

6.08

8.48

9.504

MHz

V

o(rms)

output carrier signal on CISPR16 load
(RMS value)

120

−

122

dB

µ

V

V

i(rms)

input signal (RMS value)

note 2

82

−

122

dB

µ

V

THD

total harmonic distortion on CISPR16
load with coupling network

−

−

55

−

dB

Z

L

load impedance

1

30

−

Ω

BR

baud rate

−

600

1200

bits/s

T

amb

ambient temperature

0

−

70

°

C