MAX19505–MAX19507/
MAX19515–MAX19517 Evaluation Kits
When parallel programming mode is enabled ( SPEN =
1), the SHDN pin enables/disables the IC according to
the settings in Table 6.
Parallel Programming
Limited feature selection is available as an alternative
to full programmability through the serial port. If the ser-
serial port pins ( CS , SCLK, SDIN) become feature
selection pins (OUTSEL, DIV, FORMAT) that require an
analog control network.
Jumpers JU1, JU2, JU3, and JU7 control the feature
selection when the serial port is disabled (parallel pro-
gramming is enabled). See Table 7 for functionality.
ial port is disabled by setting the SPEN pin high, the
Table 6. Jumper JU6 Functions ( SPEN = AVDD)
SHUNT POSITION
Installed
Not installed*
SHDN PIN
Connected to AVDD
Connected to GND through a 100k ? pulldown resistor
POWER STATE
( SPEN = AVDD)
Complete power-down
CHA + CHB active
*Default position.
Table 7. Parallel Programming Feature Selection
SCLK/DIV
(JU1)
SCLK
X
X
X
0
VDD
(Unconnected pin)
X
X
X
SDIN/FORMAT
(JU2)
SDIN
0
VDD
(Unconnected pin)
X
X
X
X
X
X
CS /OUTSEL
(JU3)
CS
X
X
X
X
X
X
0
VDD
(Unconnected pin)
SPEN
(JU7)
0
1
1
1
1
1
1
1
1
1
DESCRIPTION
Serial port active. Features are programmed
through the serial port.
Two ’s complement
Offset binary
Gray code
Clock divide-by-1
Clock divide-by-2
Clock divide-by-4
CMOS (dual bus)
MUX CMOS (channel A data bus)
MUX CMOS (channel B data bus)
X = Don’t care.
12
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