AD6659 Analog Devices, AD6659 Datasheet - Page 32

• Manufacturer Part Number: AD6659
• Description: Dual IF Receiver
• Manufacturer: Analog Devices

Specifications of AD6659

• Resolution (bits): 12bit
• # Chan: 2
• Sample Rate: 80MSPS
• Interface: Par
• Analog Input Type: Diff-Bip
• Ain Range: 2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

AD6659
MEMORY MAP REGISTER TABLE
All address and bit locations excluded from Table 17 are not currently supported for this device.
Table 17.
Addr
(Hex)
Chip Configuration Registers
0x00
0x01
0x02
Device Index and Transfer Registers
0x05
0xFF
Program Registers (May or May Not Be Indexed by Device Index)
0x08
0x09
0x0B
Register Name
SPI port
configuration
(global)
Chip ID (global)
Chip grade
(global)
Channel index
Transfer
Modes
Clock (global)
Clock divide
(global)
Bit 7
(MSB)
0
Open
Open
Open
External
power-
down
enable
(local)
Open
Bit 6
LSB
first
Open
Open
Open
External pin function
0x00 full power-down
0x01 standby (local)
Speed Grade ID[6:4]
80 MSPS = 011
Bit 5
Soft reset
Open
Open
Open
Open
8-bit Chip ID Bits[7:0]
Rev. | Page 32 of 40
Bit 4
1
Open
Open
Open
Open
AD6659 = 0x76
Bit 3
1
Open
Open
Open
Bit 2
Soft
reset
Open
Open
Clock Divider[2:0]
Clock divide ratio
000 = divide by 1
001 = divide by 2
010 = divide by 3
011 = divide by 4
100 = divide by 5
101 = divide by 6
Open
LSB first
ADC B
default
Open
01 = full power-down
Open
Bit 1
11 = chip wide digital
00 = chip run
10 = standby
reset (local)
Bit 0
(LSB)
0
ADC A
default
Transfer
Duty
cycle
stabilize
0x00
0x00
Default
Value
(Hex)
0x18
0x03
0x80
0x00
Comments
The nibbles are
mirrored so that
LSB- or MSB-first
mode registers
correctly, regardless
of shift mode
Unique chip ID
used to
differentiate
devices; read only
Unique speed
grade ID used to
differentiate
devices; read only
Bits are set to
determine which
device on chip
receives the next
write command;
the default is all
devices on chip
Synchronously
transfers data from
the master shift
register to the slave
Determines various
generic modes of
chip operation
Enables or disables
theDCS
The divide ratio is
the value plus 1