AD9639 Analog Devices, Inc., AD9639 Datasheet - Page 32

• Manufacturer Part Number: AD9639
• Description: Quad, 12-bit, 170 Msps/210 Msps Serial Output 1.8 V Adc
• Manufacturer: Analog Devices, Inc.

AD9639
Table 15. Memory Map Register
Addr.
(Hex)
Chip Configuration Registers
0x00
0x01
0x02
Device Index and Transfer Registers
0x05
0xFF
ADC Function Registers
0x08
0x09
0x0D
0x0E
0x0F
Register
Name
chip_port_
config (local,
master)
chip_id
(global)
chip_grade
(global)
device_
index_A
(global)
device_
update (local,
master)
Modes
(local)
Clock
(global)
test_io
(local)
test_bist
(local)
adc_input
(local)
(MSB)
Bit 7
SDO active
(not
required,
ignored if
not used)
Bit 6
LSB
first
External PDWN pin
function
00 = full power-down
(default)
01 = standby
Speed grade
010 = 170 MSPS
100 = 210 MSPS
Bit 5
Soft
reset
Reset PN
sequence
long gen
1 = on
0 = off
(default)
0x0B: AD9639, 12-bit quad
8-bit chip ID, Bits[2:0]
16-bit
address
(default
mode for
ADCs)
Reset PN
sequence
short gen
1 = on
0 = off
(default)
Rev. 0 | Page 32 of 36
Bit 4
Bit 3
ADC A
Flexible output test mode
0000 = off (normal operation)
0001 = midscale short
0010 = +FS short
0011 = −FS short
0100 = checkerboard output
0101 = PN 23 sequence
0110 = PN 9 sequence
0111 = 1/0 word toggle
ADC B
BIST init
1 = on
0 = off
(default)
Analog
disconnect
enable
1 = on
0 = off
(default)
Bit 2
ADC C
Power-down mode
00 = chip run
(default)
01 = full power-down
10 = standby
11 = reset
VCM
enable
1 = on
0 = off
(default)
Bit 1
(LSB)
Bit 0
ADC D
SW
transfer
1 = on
0 = off
(default)
Duty
cycle
stabilize
1 = on
(default)
0 = off
BIST
enable
1 = on
0 = off
(default)
Default
Value
(Hex)
0x18
0x0F
0x00
0x00
0x01
0x00
0x00
0x00
Comments
Read only.
Read only.
Bits are set to
determine
which device
on chip
receives the
next write
command.
The default
is all devices
on chip.
Synchro-
nously
transfers
data from
the master
shift register
to the slave.
Determines
generic
modes
of chip
operation.
Turns the
internal
duty cycle
stabilizer
on and off.
When set,
the test data
is placed on
the output
pins in place
of normal
data.
When Bit 0
is set, the
built-in self-
test function
is initiated.