Philips TDA5051A User manual
- Category
- Security device components
- Type
- User manual
The Philips TDA5051A is a home automation modem designed for transmitting data over the power line network. It features full digital carrier generation and shaping, modulation/demodulation frequency set by clock adjustment, and an integrated output power stage with overload protection. It boasts a high clock rate of 6-bit A/D converter for rejection of aliasing components and an 8-bit A/D converter and narrow digital filtering for precise data transmission. The device complies with EN50065-1 standards and requires only a few external components for cost-effective applications.
The Philips TDA5051A is a home automation modem designed for transmitting data over the power line network. It features full digital carrier generation and shaping, modulation/demodulation frequency set by clock adjustment, and an integrated output power stage with overload protection. It boasts a high clock rate of 6-bit A/D converter for rejection of aliasing components and an 8-bit A/D converter and narrow digital filtering for precise data transmission. The device complies with EN50065-1 standards and requires only a few external components for cost-effective applications.
DATA SHEET
Product specification
Supersedes data of 1997 Sep 19
File under Integrated Circuits, IC11
1999 May 31
INTEGRATED CIRCUITS
TDA5051A
Home automation modem
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
1999 May 31 3
Philips Semiconductors Product specification
Home automation modem TDA5051A
ORDERING INFORMATION
BLOCK DIAGRAM
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
TDA5051AT SO16 plastic small outline package; 16 leads; body width 7.5 mm SOT162-1
Fig.1 Block diagram.
handbook, full pagewidth
MGK832
1
4
7
DGND
5
6
10
AGND
12
V
DDA
V
DDAP
TX
OUT
RX
IN
APGND
PD
13
V
DDD
311
10
9
15
14
8
2
8
U
H
L
D
5
16
ROM
DAC clock
filter clock
OSCILLATOR
DATA
OUT
OSC2
OSC1
DIGITAL
DEMODULATOR
DIGITAL
BAND-PASS
FILTER
÷
2
CONTROL LOGIC
D/A
modulated
carrier
TDA5051A
A/D
TEST1 SCANTEST
U/D
COUNT
PEAK
DETECT
POWER
DRIVE
WITH
PROTECTION
6
DATA
IN
CLK
OUT
1999 May 31 4
Philips Semiconductors Product specification
Home automation modem TDA5051A
PINNING
SYMBOL PIN DESCRIPTION
DATA
IN
1 digital data input (active LOW)
DATA
OUT
2 digital data output (active LOW)
V
DDD
3 digital supply voltage
CLK
OUT
4 clock output
DGND 5 digital ground
SCANTEST 6 test input (LOW in application)
OSC1 7 oscillator input
OSC2 8 oscillator output
APGND 9 analog ground for power amplifier
TX
OUT
10 analog signal output
V
DDAP
11 analog supply voltage for power
amplifier
AGND 12 analog ground
V
DDA
13 analog supply voltage
RX
IN
14 analog signal input
PD 15 power-down input (active HIGH)
TEST1 16 test input (HIGH in application)
Fig.2 Pin configuration.
handbook, halfpage
TDA5051AT
MGK833
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DATA
IN
DATA
OUT
V
DDD
CLK
OUT
DGND
SCANTEST
OSC1
OSC2
APGND
TX
OUT
V
DDAP
AGND
V
DDA
RX
IN
PD
TEST1
FUNCTIONAL DESCRIPTION
Both transmission and reception stages are controlled
either by the master clock of the microcontroller or by the
on-chip reference oscillator connected to a crystal. This
ensures the accuracy of the transmission carrier and the
exact trimming of the digital filter, thus making the
performance totally independent of application
disturbances such as component spread, temperature,
supply drift and so on.
The interface with the power network is made by means of
an LC network (see Fig.18). The device includes a power
output stage that feeds a 120 dBµV (RMS) signal on a
typical 30 Ω load.
To reduce power consumption, the IC is disabled by a
power-down input (pin PD): in this mode, the on-chip
oscillator remains active and the clock continues to be
supplied at pin CLK
OUT
. For low-power operation in
reception mode, this pin can be dynamically controlled by
the microcontroller, see Section “Power-down mode”.
When the circuit is connected to an external clock
generator (see Fig.6), the clock signal must be applied at
pin OSC1 (pin 7); OSC2 (pin 8) must be left open-circuit.
Fig.7 shows the use of the on-chip clock circuit.
All logic inputs and outputs are compatible with
TTL/CMOS levels, providing an easy connection to a
standard microcontroller I/O port.
The digital part of the IC is fully scan-testable. Two digital
inputs, SCANTEST and TEST1, are used for production
test: these pins must be left open-circuit in functional mode
(correct levels are internally defined by pull-up or
pull-down resistors).
Transmission mode
To provide strict stability with respect to environmental
conditions, the carrier frequency is generated by scanning
the ROM memory under the control of the microcontroller
clock or the reference frequency provided by the on-chip
oscillator. High frequency clocking rejects the aliasing
components to such an extent that they are filtered by the
coupling LC network and do not cause any significant
disturbance. The data modulation is applied through
pin DATA
IN
and smoothly applied by specific digital circuits
to the carrier (shaping). Harmonic components are limited
in this process, thus avoiding unacceptable disturbance of
the transmission channel (according to CISPR16 and
EN50065-1 recommendations). A −55 dB Total Harmonic
Distortion (TDH) is reached when the typical LC coupling
network (or an equivalent filter) is used.
1999 May 31 5
Philips Semiconductors Product specification
Home automation modem TDA5051A
The DAC and the power stage are set in order to provide
a maximum signal level of 122 dBµV (RMS) at the output.
The output of the power stage (TX
OUT
) must always be
connected to a decoupling capacitor, because of a DC
level of 0.5V
DD
at this pin, which is present even when the
device is not transmitting. This pin must also be protected
against overvoltage and negative transient signals.
The DC level of TX
OUT
can be used to bias a unipolar
transient suppressor, as shown in the application diagram;
see Fig.18.
Direct connection to the mains is done through an LC
network for low-cost applications. However, a HF signal
transformer could be used when power-line insulation has
to be performed.
Reception mode
The input signal received by the modem is applied to a
wide range input amplifier with AGC (−6 to +30 dB). This is
basically for noise performance improvement and signal
level adjustment, which ensures a maximum sensitivity of
the ADC. An 8-bit conversion is then performed, followed
by digital band-pass filtering, to meet the CISPR
normalization and to comply with some additional
limitations met in current applications.
CAUTION
In transmission mode, the receiving part of the circuit is
not disabled and the detection of the transmitted signal
is normally performed. In this mode, the gain chosen
before the beginning of the transmission is stored, and
the AGC is internally set to −6dB as long as DATA
IN
is LOW. Then, the old gain setting is automatically
restored.
After digital demodulation, the baseband data signal is
made available after pulse shaping.
The signal pin (RX
IN
) is a high-impedance input which has
to be protected and DC decoupled for the same reasons
as with pin TX
OUT
. The high sensitivity (82 dBµV) of this
input requires an efficient 50 Hz rejection filter (realized by
the LC coupling network), which also acts as an
anti-aliasing filter for the internal digital processing;
see Fig.18.
Data format
T
RANSMISSION MODE
The data input (DATA
IN
) is active LOW: this means that a
burst is generated on the line (pin TX
OUT
) when DATA
IN
pin is LOW.
Pin TX
OUT
is in a high-impedance state as long as the
device is not transmitting. Successive logic 1s are treated
in a Non-Return-to-Zero (NRZ) mode, see pulse shapes in
Figs 8 and 9.
R
ECEPTION MODE
The data output (pin DATA
OUT
) is active LOW; this means
that the data output is LOW when a burst is received.
Pin DATA
OUT
remains LOW as long as a burst is received.
Power-down mode
Power-down input (pin PD) is active HIGH; this means that
the power consumption is minimum when pin PD is HIGH.
Now, all functions are disabled, except clock generation.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
HANDLING
Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be totally safe, it is
desirable to take normal precautions appropriate to handling MOS devices.
SYMBOL PARAMETER MIN. MAX. UNIT
V
DD
supply voltage 4.5 5.5 V
f
osc
oscillator frequency − 12 MHz
T
stg
storage temperature −50 +150 °C
T
amb
ambient temperature −10 +80 °C
T
j
junction temperature − 125 °C
1999 May 31 6
Philips Semiconductors Product specification
Home automation modem TDA5051A
CHARACTERISTICS
V
DDD
=V
DDA
=5V±5%; T
amb
= 0 to 70 °C; V
DDD
connected to V
DDA
; DGND connected to AGND.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Supply
V
DD
supply voltage 4.75 5 5.25 V
I
DD(RX/TX)(tot)
total analog + digital
supply current
V
DD
=5V±5%
TX or RX mode
− 28 38 mA
I
DD(PD)(tot)
total analog + digital
supply current;
V
DD
=5V±5%;
PD = HIGH
Power-down mode
− 19 25 mA
I
DD(PAMP)
power amplifier supply
current
V
DD
=5V±5%;
Z
L
=30Ω;
DATA
IN
= LOW
in transmission mode
− 19 30 mA
I
DD(PAMP)(max)
maximum power amplifier
supply current
V
DD
=5V±5%;
Z
L
=1Ω;
DATA
IN
= LOW
in transmission mode
− 76 − mA
DATA
IN
and PD inputs: DATA
OUT
and CLK
OUT
outputs
V
IH
HIGH-level input voltage 0.2V
DD
+ 0.9 − V
DD
+ 0.5 V
V
IL
LOW-level input voltage −0.5 − 0.2V
DD
− 0.1 V
V
OH
HIGH-level output voltage I
OH
= −1.6 mA 2.4 −− V
V
OL
LOW-level output voltage I
OL
= 1.6 mA −−0.45 V
OSC1 input and OSC2 output (OSC2 only used for driving external quartz crystal; must be left open-circuit
when using an external clock generator)
V
IH
HIGH-level input voltage 0.7V
DD
− V
DD
+ 0.5 V
V
IL
LOW-level input voltage −0.5 − 0.2V
DD
− 0.1 V
V
OH
HIGH-level output voltage I
OH
= −1.6 mA 2.4 −− V
V
OL
LOW-level output voltage I
OL
= 1.6 mA −−0.45 V
Clock
f
osc
oscillator frequency 6.080 − 9.504 MHz
ratio between oscillator
and carrier frequency
− 64 −
ratio between oscillator
and clock output frequency
− 2 −
Transmission mode
f
cr
carrier frequency f
osc
= 8.48 MHz − 132.5 − kHz
t
su
set-up time of the shaped
burst
f
osc
= 8.48 MHz;
see Fig.8
− 170 −µs
t
h
hold time of the shaped
burst
f
osc
= 8.48 MHz;
see Fig.8
− 170 −µs
f
osc
f
cr
--------
f
osc
f
CLKOUT
---------------------
1999 May 31 7
Philips Semiconductors Product specification
Home automation modem TDA5051A
t
W(DI)(min)
minimum pulse width of
DATA
IN
signal
f
osc
= 8.48 MHz;
see Fig.8
− 190 −µs
V
o(rms)
output carrier signal
(RMS value)
Z
L
= CISPR16;
DATA
IN
= LOW
120 − 122 dBµV
I
o(max)
power amplifier maximum
output current (peak value)
Z
L
=1Ω;
DATA
IN
= LOW
− 160 − mA
Z
o
output impedance of the
power amplifier
− 5 −Ω
V
O
output DC level at
pin TX
OUT
− 2.5 − V
THD total harmonic distortion on
CISPR16 load with the
coupling network
(measured on the first ten
harmonics)
V
o(rms)
= 121 dBµV on
CISPR16 load;
f
osc
= 8.48 MHz;
DATA
IN
= LOW
(no modulation);
see Figs 3 and 16
−−55 − dB
B
−20dB
bandwidth of the shaped
output signal (at −20 dB)
on CISPR16 load with the
coupling network
V
o(rms)
= 121 dBµV on
CISPR16 load;
f
osc
= 8.48 MHz;
DATA
IN
= 300 Hz;
duty factor = 50%;
see Fig.4
− 3000 − Hz
Reception mode
V
i(rms)
analog input signal
(RMS value)
82 − 122 dBµV
V
I
DC level at pin RX
IN
− 2.5 − V
Z
i
RX
IN
input impedance − 50 − kΩ
R
AGC
AGC range − 36 − dB
t
c(AGC)
AGC time constant f
osc
= 8.48 MHz;
see Fig.5
− 296 −µs
t
d(dem)(su)
demodulation delay set-up
time
f
osc
= 8.48 MHz;
see Fig.15
− 350 400 µs
t
d(dem)(h)
demodulation delay hold
time
f
osc
= 8.48 MHz;
see Fig.15
− 420 470 µs
B
det
detection bandwidth f
osc
= 8.48 MHz − 3 − kHz
BER bit error rate f
osc
= 8.48 MHz;
600 baud; S/N = 35 dB;
signal 76 dBµV;
see Fig.17
− 1 − 1 × 10
−4
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
1999 May 31 8
Philips Semiconductors Product specification
Home automation modem TDA5051A
Power-up timing
t
d(pu)(TX)
delay between power-up
and DATA
IN
in
transmission mode
XTAL = 8.48 MHz;
C1 = C2 = 27 pF;
R
p
= 2.2 MΩ; see Fig.10
− 1 −µs
t
d(pu)(RX)
delay between power-up
and DATA
OUT
in reception
mode
XTAL = 8.48 MHz;
C1 = C2 = 27 pF;
R
p
= 2.2 MΩ;
f
RXIN
= 132.5 kHz;
120 dBµV sine wave;
see Fig.11
− 1 −µs
Power-down timing
t
d(pd)(TX)
delay between PD = 0 and
DATA
IN
in transmission
mode
f
osc
= 8.48 MHz;
see Fig.12
− 10 −µs
t
d(pd)(RX)
delay between PD = 0 and
DATA
OUT
in reception
mode
f
osc
= 8.48 MHz;
f
RXIN
= 132.5 kHz;
120 dBµV sine wave;
see Fig.13
− 500 −µs
t
active(min)
minimum active time with
T = 10 ms power-down
period in reception mode
f
osc
= 8.48 MHz;
f
RXIN
= 132.5 kHz;
120 dBµV sine wave;
see Fig.14
− 1 −µs
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Fig.3 Carrier spectrum.
Resolution bandwidth = 9 kHz; top: 0 dBV (RMS) = 120 dBµV (RMS); marker at −5 dBV (RMS) = 115 dBµV (RMS);
the CISPR16 network provides an attenuation of 6 dB, so the signal amplitude is 121 dBµV (RMS).
d
book, full pagewidth
−100
0
MGK834
132.5 kHz
V
o(rms)
(dBV)
10
6
10
5
f (Hz)
1999 May 31 9
Philips Semiconductors Product specification
Home automation modem TDA5051A
Fig.4 Shaped signal spectrum.
Resolution bandwidth = 100 Hz; B
−20dB
= 3000 Hz (2 × 1500 Hz).
handbook, full pagewidth
−60
117.5 132.5
dBV
(RMS)
147.5
f (kHz)
−10
MBH664
1500 Hz
20 dB
Fig.5 AGC time constant definition (not to scale).
handbook, full pagewidth
MGK011
V
RXIN
V
(I)
0
8.68 dB
AGC range
t
c(AGC)
(AGC time constant)
+30 dB
−6 dB
G
AGC
modulated sine wave 122 dBµV amplitude
t
1999 May 31 10
Philips Semiconductors Product specification
Home automation modem TDA5051A
TIMING
Configuration for clock
Fig.6 External clock.
For parameter description, see Table 1.
handbook, full pagewidth
MGK835
MICRO-
CONTROLLER
CLK
OUT
GND
TDA5051A
OSC1
DGND
XTAL
f
osc
7
5
Fig.7 Typical configuration for on-chip clock circuit.
For parameter description, see Table 1.
handbook, full pagewidth
MGK836
MICRO-
CONTROLLER
CLK
IN
GND
TDA5051A R
p
CLK
OUT
DGND
OSC2
OSC1
XTAL
1
/
2
f
osc
4
5
8
7
C1
C2
1999 May 31 11
Philips Semiconductors Product specification
Home automation modem TDA5051A
Table 1 Clock oscillator parameters
Table 2 Calculation of parameters depending on the clock frequency
OSCILLATOR
FREQUENCY
f
osc
CARRIER FREQUENCY
f
cr
CLOCK OUTPUT
FREQUENCY
1
⁄
2
f
osc
EXTERNAL COMPONENTS
6.080 to 9.504 MHz 95 to 148.5 kHz 3.040 to 4.752 MHz C1 = C2 = 27 to 47 pF;
R
p
= 2.2 to 4.7 MΩ;
XTAL = standard quartz crystal
SYMBOL PARAMETER CONDITIONS UNIT
f
osc
oscillator frequency with on-chip oscillator: frequency of the crystal
quartz; with external clock: frequency of the
signal applied at OSC1
Hz
f
CLKOUT
clock output frequency
1
⁄
2
f
osc
Hz
f
cr
carrier frequency/digital filter tuning
frequency
1
⁄
64
f
osc
Hz
t
su
set-up time of the shaped burst
or
s
t
h
hold time of the shaped burst
or
s
t
W(DI)(min)
minimum pulse width of DATA
IN
signal
t
su
+
s
t
W(burst)(min)
minimum burst time of V
O(DC)
signal t
W(DI)(min)
+t
h
s
t
c(AGC)
AGC time constant s
t
su(demod)
demodulation set-up time
(≈max.)
s
t
h(demod)
demodulation hold time
(≈max.)
s
23
f
cr
------
1472
f
osc
-------------
23
f
cr
------
1472
f
osc
-------------
1
f
cr
-----
2514
f
osc
-------------
3200
f
osc
-------------
3800
f
osc
-------------
1999 May 31 12
Philips Semiconductors Product specification
Home automation modem TDA5051A
Table 3 Relationship between DATA
IN
and TX
OUT
Note
1. X = don’t care.
PD
DATA
IN
TX
OUT
1X
(1)
high-impedance
0 1 high-impedance (after t
h
)
0 0 active with DC offset
handbook, full pagewidth
MGK837
t
W(burst)
t
su
0
V
O(DC)
t
h
t
W(burst)(min)
TX
OUT
t
W(DI)
t
W(DI)(min)
DATA
IN
(1) (2) (3)
Fig.8 Relationship between DATA
IN
and TX
OUT
(see Table 3).
(1) t
W(DI)
>t
W(DI)(min)
.
(2) t
W(DI)(min)
=t
su
+
(3) t
W(DI)(min)
<t
su
; wrong operation.
1
f
cr
-----
Fig.9 Pulse shape characteristics.
handbook, halfpage
MGK010
t
W(burst)
t
su
t
h
100%
1999 May 31 13
Philips Semiconductors Product specification
Home automation modem TDA5051A
Timing diagrams
Fig.10 Timing diagram during power-up in transmission mode.
DATA
IN
is an edge-sensitive input and must be HIGH before starting a transmission.
handbook, full pagewidth
MGK015
t
d(pu)(TX)
TX
OUT
DATA
IN
V
DD
90% V
DD
CLK
OUT
HIGH
NOT DEFINED CLOCK STABLE
Fig.11 Timing diagram during power-up in reception mode.
handbook, full pagewidth
MGK016
t
d(pu)(RX)
t
d(dem)(h)
RX
IN
DATA
OUT
V
DD
90% V
DD
CLK
OUT
HIGH
NOT DEFINED
NOT DEFINED
CLOCK STABLE
1999 May 31 14
Philips Semiconductors Product specification
Home automation modem TDA5051A
Fig.12 Power-down sequence in transmission mode.
handbook, full pagewidth
MGK017
t
d(pd)(TX)
normal operation wrong operation
TX
OUT
delayed by PD
TX
OUT
DATA
IN
PD
Fig.13 Power-down sequence in reception mode.
handbook, full pagewidth
MGK018
t
d(dem)(su)
t
d(pd)(RX)
t
d(pd)(RX)
DATA
OUT
delayed by PD
DATA
OUT
RX
IN
PD
Fig.14 Power saving by dynamic control of power-down.
handbook, full pagewidth
MGK845
t
active(min)
I
DD(RX)
I
DD(PD)
I
DD
T
DATA
OUT
RX
IN
PD
0
1999 May 31 15
Philips Semiconductors Product specification
Home automation modem TDA5051A
TEST INFORMATION
Fig.15 Test set-up for measuring demodulation delay.
handbook, full pagewidth
30 Ω
1 µF
10 nF
XTAL
DATA
IN
DATA
OUT
t
d(dem)(su)
t
d(dem)(h)
DATA
OUT
DATA
IN
TX
OUT
/RX
IN
OSCILLOSCOPE
Y1
TDA5051A
(to be tested)
pulse
generator
300 Hz
50%
Y2
TX
OUT
RX
IN
f
osc
2
1
10
14
78
MGK838
1999 May 31 16
Philips Semiconductors Product specification
Home automation modem TDA5051A
Fig.16 Test set-up for measuring THD and bandwidth of the TX
OUT
signal.
(1) Square wave TTL signal 300 Hz, duty factor = 50% for measuring signal bandwidth (see spectrum Fig.3).
(2) DATA
IN
= LOW for measuring total harmonic distortion (see spectrum Fig.3).
(3) Tuned for f
cr
= 132.5 kHz.
(4) The CISPR16 network provides a −6 dB attenuation.
handbook, full pagewidth
MGK839
DATA
IN
TDA5051A
POWER
SUPPLY
SPECTRUM
ANALYSER
50 Ω
10
7
8
OSC1
OSC2
12, 5, 9
1 13, 3, 11
TX
OUT
AGND, DGND, APGND
V
DDA,
V
DDD,
V
DDAP
5 Ω
5 Ω
50 Ω
10 µF
33 nF
250 nF
250 nF
47 µH
50 µH
50 µH
33 nF
47 µH
coupling
network
(3)
CISPR16
network
(4)
+5 V
(2)(1)
1999 May 31 17
Philips Semiconductors Product specification
Home automation modem TDA5051A
Fig.17 Test set-up for measuring Bit Error Rate (BER).
(1) See Fig.16.
handbook, full pagewidth
MGK840
TDA5051A
(to be tested)
COUPLING
NETWORK
(1)
V24/TTL
INTERFACE
78
78
14
2
DATA
OUT
DATA
IN
RX
IN
out
TDA5051A
COUPLING
NETWORK
(1)
SPECTRUM
ANALYSER
50 Ω
WHITE
NOISE
GENERATOR
10
12,
5,
9
12,
5,
9
1
OSC1 OSC2
OSC1 OSC2
TX
OUT
in
AGND, DGND, APGND
AGND, DGND, APGND
V24 SERIAL DATA
ANALYSER
PARAMETERS
600 BAUD
PSEUDO RANDOM SEQUENCE:
2
9
−1 BITS LONG
DATA
IN
DATA
OUT
RXD
TXD
XTAL = 8.48 MHz
out
in
out
+
+
1999 May 31 18
Philips Semiconductors Product specification
Home automation modem TDA5051A
APPLICATION INFORMATION
Fig.18 Application diagram without power line insulation.
f
cr
= 115.2 kHz for a XTAL = 7.3728 MHz standard crystal.
handbook, full pagewidth
MGK841
250 V (AC)
max
T 630 mA
1 mH
68 Ω
(2 W)
47 nF/X2
250 V (AC)
47 µH
low R
S
MOV
250 V (AC)
47 nF
(63 V)
47 µH
100 µF
(16 V)
470 µF
(16 V)
7V5
(1.3 W)
1N4006
1N4006
2 µF
250 V (AC)
10 nF
V
DDD
V
DDAP
APGND AGNDDGND
V
DDA
RX
IN
TX
OUT
SA5.0A
1 µF
(16 V)
14
1
+5 V
+5 V
2
MICRO-
CONTROLLER
4
7
OSC1
XTAL
7.3728 MHz
2.2 MΩ
OSC2
85912
3
31
2
1311
15
47 nF
78L05
PD
27 pF27 pF
10
DATA
IN
DATA
OUT
CLK
OUT
TDA5051A
1999 May 31 19
Philips Semiconductors Product specification
Home automation modem TDA5051A
Fig.19 Gain (curve 1) and input impedance (curve 2) of the coupling network (f
cr
= 115.2 kHz; L = 47 µH;
C = 47 nF).
Main features of the coupling network: 50 Hz rejection >80 dB; anti-aliasing for the digital filter >50 dB at the
sampling frequency (
1
⁄
2
f
osc
). Input impedance always higher than 10 Ω within the 95 to 148.5 kHz band.
handbook, full pagewidth
20
0
−
20
−
40
−
60
−
80
−
100
MBH907
10
gain
(dB)
10
2
10
10
2
10
3
10
3
10
4
10
5
f (Hz)
input
impedance
(Ω)
10
6
10
7
1
2
Fig.20 Output voltage as a function of line impedance (with coupling network; L = 47 µH; C = 47 nF).
handbook, halfpage
130
120
110
100
MBH908
110
V
o
(dBµV)
Z
line
(Ω)
10
2
1999 May 31 20
Philips Semiconductors Product specification
Home automation modem TDA5051A
Fig.21 Application diagram with power line insulation.
f
cr
= 115.2 kHz for a XTAL = 7.3728 MHz standard crystal.
handbook, full pagewidth
MGK842
250 V (AC)
max
T 630 mA
1 VA
230 V
6 V
100 Ω
(0.5 W)
100 Ω
22 µH
1 µF
(16 V)
100 nF
(63 V)
NEWPORT
76250
470 nF/X2
250 V (AC)
47 µH
low R
S
26
15
10 nF
100 µF
(16 V)
470 µF
(16 V)
V
DDD
V
DDAP
V
DDA
RX
IN
TX
OUT
SA5.0A
14
1
+5 V
+5 V
2
MICRO-
CONTROLLER
4
7
OSC1
XTAL
7.3728 MHz
2.2 MΩ
OSC2
85912
3
31
2
1311
15
47 nF
FDB08
78L05
PD
27 pF27 pF
10
TDA5051A
APGND AGNDDGND
DATA
IN
DATA
OUT
CLK
OUT
MOV
250 V (AC)
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Philips TDA5051A User manual
- Category
- Security device components
- Type
- User manual
The Philips TDA5051A is a home automation modem designed for transmitting data over the power line network. It features full digital carrier generation and shaping, modulation/demodulation frequency set by clock adjustment, and an integrated output power stage with overload protection. It boasts a high clock rate of 6-bit A/D converter for rejection of aliasing components and an 8-bit A/D converter and narrow digital filtering for precise data transmission. The device complies with EN50065-1 standards and requires only a few external components for cost-effective applications.
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