at84ad001b ATMEL Corporation, at84ad001b Datasheet - Page 18

• Manufacturer Part Number: at84ad001b
• Description: Dual 8-bit 1 Gsps Adc
• Manufacturer: ATMEL Corporation

Figure 13. Data Ready Reset 1:2 DMUX Mode
Notes:
18
1. In 1:2 DMUX, Fs/2 mode:
2. In 1:2 DMUX, Fs/4 mode:
CLKOI or CLKOQ
CLKOI or CLKOQ
AT84AD001B
The Data Ready Reset is taken into account only 2 ns after it is asserted. The output clock first completes its cycle (if the
reset occurs when it is low, it goes high only when its half cycle is complete; if the reset occurs when it is high, it remains
high) and then only, remains in reset state (frozen to a high level in 1:2 DMUX Fs/2 mode). The next rising edge of the input
clock after reset makes the output clock return to normal mode (after TDR).
The Data Ready Reset is taken into account only 2 ns after it is asserted. The output clock first completes its cycle (if the
reset occurs when it is high, it goes low only when its half cycle is complete; if the reset occurs when it is low, it remains low)
and then only, remains in reset state (frozen to a low level in 1:2 DMUX Fs/4 mode). The next rising edge of the input clock
after reset makes the output clock return to normal mode (after TDR).
DOIA[0:7] or
DOIB[0:7] or
DOQA[0:7]
DOQB[0:7]
(= CLKI/2)
(= CLKI/4)
CLKI or
DDRB
CLKQ
VIN
TA
1 ns min
Clock in
Reset
2 ns
N
N + 1
TDR
TDR
Pipeline Delay + TDO
TDR + 2 cycles
TDR + 2 cycles
N
N + 1
2153C–BDC–04/04