MITSUMI
HBS-Compatible Driver and Receiver with Power Supply MM1034
HBS-Compatible Driver and Receiver with Power Supply
Monolithic IC MM1034
Features
This IC conforms to the HBS (Home Bus) specification (Electronic Industries Association of Japan), and has
functions for the reception and transmission of data. It incorporates power supply circuitry which employs an
efficient switching regulator, and so can draw power directly from the bus line. AMI is adopted for the waveforms
of signals handled by the transmission and reception units, designed for connection to twisted-pair lines.
Telephone equipment, security devices, audio or video equipment, air-conditioning equipment, and a wide
range of other devices can be connected to a bus line to enable mutual communications.
1. Compact design
2. High reliability
3. Replaces pulse transformers
4. Low cost
5. Adopts highly efficient switching regulator
6. Easy circuit design
7. Stable internal power supply circuit (Vo1=5 V 0.25)
8. Few external components
Applications
1. Telephony equipment
2. Security equipment
3. Audio and video devices
4. Air-conditioning equipment
5. Wide range of other equipment and devices
Block diagram
Package
DIP-16A (MM1034XD)
SOP-16A (MM1034XF)
Outline
MITSUMI
HBS-Compatible Driver and Receiver with Power Supply MM1034
Absolute Maximun Ratings
(Ta=25
C)
Item
Symbol
Ratings
Units
Storage temperature
T
STG
-40~+125
C
Operating temperature
T
OPR
-20~+75
C
Power supply current
V
CC
max.
-0.3~+46
V
Operating power supply voltage
V
CCOP
13~45
V
Allowable loss
Pd
400
mW
Electrical Characteristics
(Except where noted therwise, Ta=25
C, V
CC
=30V, Ftransmit=10kHz (DUTY=50%))
Item
Symbol
Measurement conditions
Min. Typ. Max. Units
Output voltage
V
O
1
V
CC
1=15~45V, I
L
=0~250mA
4.75
5.00
5.25
V
Output voltage
V
O
2
V
CC
1=13~45V, I
L
=0~250mA
4.70
5.00
5.25
V
Output voltage
V
O
2
V
CC
1=11~45V, I
L
=0~100mA
4.75
5.00
5.25
V
Output ripple voltage
Vr
I
L
=250mA, no spikes
50
mV
Reactive current
I
CCO
I
L
=0mA, transmit unit off
4
6
mA
SWR transmission
frequency
F
OSC
80
kHz
Power supply current
on short-circuit
I
IS
R
S
=0.2
7.5
12
mA
Output current
on short-circuit
I
OS
R
S
=0.2
70
110
150
mA
Transmission output voltage
V
TO
Both pins 8 and 9
3.8
4.2
4.6
V
P-P
Transmission
waveform symmetry
V
TR
V
TO
1/V
TO
2
0.75
1.0
1.25
Reception sensitivity
V
RS
0.65
0.75
0.85
V
P-P
Noise resistance
V
RN
Level at which no errors are output
0.55
V
P-P
Input impedance
R
IN
Both pins 11 and 12
25
36
46
k
Transmission delay time 1
Td1
cf. transmit/receive waveform diagrams
0.2
S
Transmission delay time 2
Td2
cf. transmit/receive waveform diagrams
0.4
S
Transmission delay time 3
Td3
cf. transmit/receive waveform diagrams
0.7
S
Transmission delay time 4
Td4
cf. transmit/receive waveform diagrams
1.0
S
Reception output H voltage
V
ROH
4.5
V
Reception output L voltage
V
ROL
0.5
V
Transmission waveform LOSS 1
V
TLS
V
T
=5V applied, power on
4.5
V
Transmission waveform LOSS 2
V
TLS
applied, power off
4.5
V
H level input voltage
V
LIH
2.4
V
L level input voltage
V
LIL
0.8
V
H level input current
I
LIH
V
IN
=2.4V
10
A
L level input current
I
LIL
V
IN
=0.4V
300
A
SWR
Transmission
circuit
When a negative voltage is applied to pins 8 and 9, there should be no abnormal operation of internal circuits
between 0 and 6V. However, if a negative voltage exceeding -6V is applied, thyristor operation may result, so
it is recommended that an external clamping diode be added.
MITSUMI
HBS-Compatible Driver and Receiver with Power Supply MM1034
Application Circuits
DATA IN A
DATA IN B
Transmission DATA OUT A
Transmission DATA OUT B
Reception DATA OUT
Additional Application Circuits
(SWR circuit not used)
Even when a 5V external voltage can be supplied, an addition voltage of 13 to 45V must be applied to pins 2
and 3 in order to obtain an internal biased power supply of 3.4V.
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