AD6654 Analog Devices, AD6654 Datasheet - Page 69

• Manufacturer Part Number: AD6654
• Description: 14-Bit, 92.16 MSPS, 4 & 6-Channel Wideband IF to Base Band Receiver
• Manufacturer: Analog Devices

Specifications of AD6654

• Resolution (bits): 14bit
• # Chan: 1
• Sample Rate: 92.16MSPS
• Interface: Par
• Analog Input Type: Diff-Uni
• Adc Architecture: Subranging
• Pkg Type: BGA,CSP

CONNECTING THE AD6654 SERIAL PORT TO A
BLACKFIN DSP
In SPI mode, the Blackfin DSP must act as a master to the
AD6654 by providing the SCLK. SDO is an open-drain output,
so that multiple slave devices can be connected together.
Figure 73 shows a typical connection.
BLACKFIN
(MASTER)
Figure 73. SPI Mode Serial Port Connection to Blackfin DSP
SCK
SPISS
MOSI
MISO
PF2
PROGRAMMABLE FLAG
MODE
SCLK
SRFS
STFS
AND
SDO
SCS
SDI
AD6654
(SLAVE)
SMODE
VDDIO
GND
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In SPORT mode, the Blackfin provides the SCLK, SRFS, and
STFS signals, as shown in Figure 74.
BLACKFIN
Figure 74. SPORT Mode Serial Port Connections to Blackfin
SCK
TFS
RFS
DT
DR
PF2
PROGRAMMABLE FLAG
MODE
SCLK
SRFS
STFS
SDO
SCS
SDI
AD6654
SMODE
AD6654
VDDIO
GND