AD6640PCB AD [Analog Devices], AD6640PCB Datasheet - Page 23

• Manufacturer Part Number: AD6640PCB
• Description: 12-Bit, 65 MSPS IF Sampling A/D Converter
• Manufacturer: AD [Analog Devices]

REV. 0
ANTENNA 2
ANTENNA 4
ANTENNA 6
ANTENNA 8
ANTENNA 1
ANTENNA 3
ANTENNA 5
ANTENNA 7
Figure 52. Receive Chain for a Phased Array Cellular Base Station with Eight Antennas and 32 Channels
EIGHT WIDEBAND FRONT ENDS
COMMON LO
AD6640
AD6640
AD6640
AD6640
AD6640
AD6640
AD6640
AD6640
SYNC 1
SYNC 1
SYNC 1
SYNC 1
AD6620s (32 CHANNELS)
AD6620s (32 CHANNELS)
AD6620s (32 CHANNELS)
AD6620s (32 CHANNELS)
AD6620 (32)
AD6620 (31)
AD6620 (32)
AD6620 (30)
AD6620 (31)
AD6620 (32)
AD6620 (30)
AD6620 (31)
AD6620 (30)
AD6620 (31)
AD6620 (32)
AD6620 (30)
AD6620 (1)
AD6620 (2)
AD6620 (3)
AD6620 (1)
AD6620 (2)
AD6620 (3)
AD6620 (1)
AD6620 (2)
AD6620 (3)
AD6620 (1)
AD6620 (2)
AD6620 (3)
–23–
FROM EIGHT ANTENNA'S
COMBINE SIGNALS
SUM
SUM
SUM
SUM
SUM
SUM
ADSP-21xx
ADSP-21xx
ADSP-21xx
ADSP-21xx
ADSP-21xx
ADSP-21xx
(30)
(31)
(1)
(2)
(3)
(32)
32 CHANNELS OUT
EACH CHANNEL IS SUMMATION
FROM EIGHT ANTENNA'S
AD6640