AMBE2000 Datasheet, PDF (37/47 Pages) List of Unclassifed Manufacturers – VOCODER CHIP

AMBE-2000™ Vocoder Chip
User’s Manual Version 3.0
Table 6-E Switching Characteristics Over Recommended Operating Conditions
for Serial Port Receive
Reference
t_d(SCK)
t_c(SCK)
t_f(SCK)
t_r(SCK)
t_w(SCK)
t_su(FSR)
t_su(DR)
t_d(FSX)
t_h(FSX)
t_h(FSX)H
t_dis(DX)
t_h(DX)
Parameter
Delay time, DX valid after CLKX rising
Cycle time, serial port clock
Fall time, serial port clock
Rise time, serial port clock
Pulse duration, serial port clock low/ high
Setup time, FSR before CLKR falling edge
Setup time, DR before CLKR falling edge
Delay time, CLKX rising to FSX
Hold time, FSX after CLKX falling edge
Hold time, FSX after CLKX rising edge
Disable time, CLKX rising to DX
Hold time, DX valid after CLKX rising
edge
3.3 Volts
Min
Max
25
6H
6
6
3H
6
6
15
6
2H-5
20
-5
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
•
Note: H = 7.629 ns; however, do not operate serial clocks any faster than 2.048 MHz. Thus t_c(SCK) should be a
minimum of 488.3 nsec.
page 37
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