T6B70AF
Preliminary
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
T6B70AF
Interface IC for Water Heater
The T6B70A incorporates two-channel 4-bit DA converter, a
pseudo sine wave generator and an external analog signal
detection/non-detection circuit. It is designed to be used mainly
for communication between water heater and control unit.
Features
路
路
路
路
On-chip two-channel 4-bit DA converter (opposite polarities)
On-chip pseudo sine wave generator (external clock/16)
On-chip external analog signal detection/non-detection circuit
On-chip two-channel analog switch
Weight: 0.16 g (typ.)
Block Diagram
OSCIN 1
OSCOUT 2
FOUT 3
SCTL
Divide-by-
16 unit
Pseudo
sine wave
generator
0擄C
180擄C
4-bit
DA converter
4-bit
DA converter
13 SOUT+
12 SOUT鈭?/div>
16 V
DD
Waveform
initialization block
4
Modulation
control circuit
Zero-cross
waveform
shaping circuit
Amplifier input
circuit
SW1IN 14
SW1OUT 15
7 AMPIN
6 AMPOUT
Cycle measurement counter
SW2IN 11
SW2OUT 10
RESET
Analog signal
detection/non-detection
Reset
circuit
Output buffer
8 V
SS
9
DOUT
5
1
2002-02-28
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