HSDL7001 HP [Agilent(Hewlett-Packard)], HSDL7001 Datasheet - Page 5

• Manufacturer Part Number: HSDL7001
• Description: IR 3/16 Encode/Decode IC
• Manufacturer: HP [Agilent(Hewlett-Packard)]

Monoshot Operation
The figure above illustrates the
operation of the monoshot when
the internal clock is set to divide
by 2 mode, i.e., when A2=0,
A1=0, and A0=0. A rising edge
on the internal modulation state
machine (IRTXD OUTPUT), will
cause the output on the IRTXD to
go up for 6 crystal clock cycles.
(MONOSHOT)
INTERNAL
CRYSTAL
(DIVBY2)
OUTPUT
INT CLK
IRTXD
IRTXD
CLK
TXD
1
2
3
4
5
6
7
8
With a 3.6864 MHz clock, this
corresponds to a pulse of 1.63 s.
The duration of this pulse is
independent of the code A2,
A1,A0 and is always 6 clock
cycles of the crystal, corre-
sponding to the monoshot
operation.
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
6 CRYSTAL CYCLES
5