AD9643 Analog Devices, AD9643 Datasheet - Page 10

• Manufacturer Part Number: AD9643
• Description: 14-Bit, 170/210/250 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC)
• Manufacturer: Analog Devices

Specifications of AD9643

• Resolution (bits): 14bit
• # Chan: 2
• Sample Rate: 250MSPS
• Interface: LVDS,Par
• Analog Input Type: Diff-Bip
• Ain Range: 1.75 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

AD9643
Timing Diagrams
PARALLEL INTERLEAVED
CHANNEL MULTIPLEXED
CHANNEL MULTIPLEXED
(EVEN/ODD) MODE
(EVEN/ODD) MODE
CHANNEL A AND
CHANNEL B
CHANNEL A
CHANNEL B
D12±/D13±
D12±/D13±
DCO+
DCO–
CLK+
CLK–
D0±/D1±
D0±/D1±
VIN
(MSB)
(MSB)
(MSB)
(LSB)
(LSB)
(LSB)
D13±
D0±
.
.
.
.
.
.
.
.
.
SYNC
CLK+
N – 1
t
CH
Figure 2. LVDS Modes for Data Output Timing
t
SSYNC
t
Figure 3. SYNC Timing Inputs
A
t
t
PD
N
DCO
Rev. B | Page 10 of 36
CH A12
CH B12
N – 10
N – 10
CH A0
N – 10
N – 10
CH B0
N – 10
N – 10
CH A
CH A
t
CLK
t
SKEW
t
HSYNC
CH A13
CH B13
N – 10
N – 10
CH A1
N – 10
N – 10
CH B1
N – 10
N – 10
CH B
CH B
N + 1
CH A12
CH B12
CH A0
CH B0
CH A
N – 9
CH A
N – 9
N – 9
N – 9
N – 9
N – 9
CH A13
CH B13
CH A1
CH B1
CH B
N – 9
CH B
N – 9
N – 9
N – 9
N – 9
N – 9
N + 2
CH A12
CH B12
CH A0
CH B0
CH A
N – 8
CH A
N – 8
N – 8
N – 8
N – 8
N – 8
CH A13
CH B13
CH A1
CH B1
N + 3
CH B
N – 8
CH B
N – 8
N – 8
N – 8
N – 8
N – 8
CH A12
CH B12
CH A0
CH B0
CH A
CH A
N – 7
N – 7
N – 7
N – 7
N – 7
N – 7
CH A13
CH B13
CH A1
CH B1
N + 4
CH B
CH B
N – 7
N – 7
N – 7
N – 7
N – 7
N – 7
Data Sheet
CH A12
CH B12
CH A0
CH B0
CH A
N – 6
CH A
N – 6
N – 6
N – 6
N – 6
N – 6
N + 5