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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
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
=30Ω−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 dBµV
V
i(rms)
input signal (RMS value) note 2 82 − 122 dBµV
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