AMBE-1000 Digital Voice Systems, Inc., AMBE-1000 Datasheet - Page 63
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AMBE-1000
Manufacturer Part Number
AMBE-1000
Description
Manufacturer
Digital Voice Systems, Inc.
Datasheet
1.AMBE-1000.pdf
(71 pages)
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7.3
note 1: Power dissipation due to the input buffers is highly dependent on the input voltage level. At full CMOS levels,
essentially no DC current is drawn.
threshold of VDD/2, high currents can flow. Therefore, all unused input pins should be tied to their inactive state,
either V
to remain at full CMOS levels when not driven by the DSP), it is still recommended that unused I/O pins be tied to V
V
pulled fully to V
September 1995, page 5-66).
14,16,17,18,20,
21,22,23,24,27,
28,29,30,31,33,
48,49,77,96,97
7,19,26,50,56,
1,13,15,25,32,
DD
8,9,10,11,12,
41,44,51,62,
73,75,83,94
34,35,42,72
Pin Number
66,85,100
36,43,45
The AMBE-1000 is not recommended for new designs.
through a 10kOhm resistor to avoid application ambiguities. Further, if I/O pins are tied high or low, they should be
CLK_O
CLK_I
70,71
Please refer to the AMBE-2000/2020 product line.
DD
or V
Clock and Reset Timing
Figure 7-A CLK_I and CLK_O Timing Diagram
Table 7-B CLK_I and CLK_O Timing Parameters
SS
DD
. Although, I/O buffers may be left untied (since the input voltage levels of I/O buffers are designed
Descriptive
or V
Reference
Name
GND
N/A
N/A
N/A
N/A
V
Pin
The AMBE-1000 is not recommended for new designs.
t1
t2
t3
t4
t5
t6
DD
SS
. (Taken from Reference : Lucent Wireless Products Data Book, Lucent Microelectronics
Please refer to the AMBE-2000/2020 product line.
t4
Parameter
Clock Period (High to High)
Clock High Time (high to low)
Clock Low Time (low to high)
CLK_O Low Delay (high to low)
CLK_O High Delay
CLK_0 Period (low to low)
Pin Direction
t2
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However, for levels between the power supply rails, especially at or near the
Output
Power
Power
Input
Input
t1
I/O
t3
t5
page 63
Notes
Supply Voltage : 5.0 V or 3.3 V
Ground
Unused Input. See note 1. Ground through 10kOhm Resistor.
Unused Input. Leave unconnected, internal pull-up.
Unused Outputs. Can be left unconnected
Unused I/O. See note 1. Ground through 10kOhm Resistor.
t6
33.3
Min
12
12
t1
-
-
38.46
Max
21
21
-
-
Units
ns
ns
ns
ns
ns
ns
SS
or