AMBE-2000 Digital Voice Systems, Inc., AMBE-2000 Datasheet - Page 39

• Manufacturer Part Number: AMBE-2000
• Description: 2.0 - 9.6 KBPS Single ic For Toll-quality, Low Data Rate, Real Time Speech Compression
• Manufacturer: Digital Voice Systems, Inc.

•
minimum of 488.3 nsec.
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Note: H = 7.629 ns; however, do not operate serial clocks any faster than 2.048 MHz. Thus t
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Table 6-E Switching Characteristics Over Recommended Operating Conditions for Serial Port
Receive
Reference
t
t
t
t
t
t
t
t
t
t
t
h(FSX)H
su(FSR)
w(SCK)
t
d(SCK)
dis(DX)
c(SCK)
r(SCK)
su(DR)
d(FSX)
h(FSX)
f(SCK)
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
AMBE-2000™ Vocoder Chip
User’s Manual Version 4.0
Min
6H
3H
-5
6
6
6
3.3 Volts
2H-5
Max
25
15
20
6
6
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
c(SCK)
Page 39
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