Datasheet

DS21Q58 E1 Quad Transceiver
69 of 74
26.4 Receive AC Characteristics
Table 26-4. AC Characteristics—Receive
(V
DD
= 3.3V ±5%, T
A
= 0°C to +70°C for DS21Q58L; V
DD
= 3.3V ±5%, T
A
= -40°C to +85°C for DS21Q58LN.)
(Figure 26-9
and Figure 26-10)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SYSCLK Period t
SP
(Note 1) 122 488 ns
t
SH
50
SYSCLK Pulse Width
t
SL
50
ns
RSYNC Setup to SYSCLK Falling t
SU
20 t
SH
- 5 ns
RSYNC Pulse Width t
PW
50 ns
Delay RCLK to RSER Valid t
D1
50 ns
Delay RCLK to RSYNC, OUTA, OUTB t
D2
50 ns
Delay SYSCLK to RSER Valid t
D3
50 ns
Delay SYSCLK to RSYNC, OUTA,
OUTB
t
D4
50 ns
Note 1: SYSCLK = 2.048MHz.
Figure 26-9. Receive AC Timing (Receive Elastic Store Disabled)
t
D1
t
D2
RSE
R
RSYNC
3
OUTA/OUTB
2
(
R
CLK)
MSB OF
CHANNEL 1
OUTA/OUTB
4
OUTA/OUTB
5
OUTA/OUTB
1
(RCLK)
NOTE 1: OUTA OR OUTB CONFIGURED TO OUTPUT RCLK (NONINVERTED).
NOTE 2: OUTA OR OUTB CONFIGURED TO OUTPUT
RCLK (INVERTED).
NOTE 3: RSYNC IS IN OUTPUT MODE (RCR1.5 = 0).
NOTE 4: OUTA OR OUTB CONFIGURED TO OUTPUT RFSYNC, CRC4 MF SYNC, OR CAS MF SYNC (NONINVERTED).
NOTE 5: OUTA OR OUTB CONFIGURED TO OUTPUT RFSYNC, CRC4 MF SYNC, OR CAS MF SYNC (INVERTED).