SSM-2005 Analog Devices, SSM-2005 Datasheet - Page 10

• Manufacturer Part Number: SSM-2005
• Description: Search ---> SSM2005
• Manufacturer: Analog Devices

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SSM2005
SPI is a trademark of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corporation.
Timing Symbol
t
t
t
t
t
t
t
t
t
t
NOTES:
1. An idle HI (CLK-HI) or idle LO (CLK-LO) clock may be used. Data is latched on the positive edge.
2. For SPI
3. If an idle HI clock is used, t
4. The first data byte selects an address (MSB HI), and subsequent MSB LO states set gain levels. Refer to the Address/Data Decoding Truth Table.
5. Data must be sent MSB first.
CL
CH
DS
DH
CW
WC
LW
WL
L
W3
internal LD signal.)
WRITE & LOAD
WRITE & LOAD
TM
DATA
DATA
CLK
CLK
or MICROWIRE
1
0
1
0
1
0
1
1
0
0
1
0
Description
Input Clock Pulsewidth
Input Clock Pulsewidth
Data Setup Time
Data Hold Time
Positive CLK Edge to End of Write
Write to Clock Setup Time
End of Load Pulse to Next Write (4-Wire Mode)
End of Write to Start of Load (4-Wire Mode)
Load Pulsewidth (4-Wire Mode)
Load Pulsewidth (3-Wire Mode)
CW
TM
t
D7
and t
WC
3-wire bus operation, tie LD to WRITE and use WRITE pulse to drive both pins. (This generates an automatic
t
CL
WL
t
DS
are measured from the final negative transition to the idle state.
D6
t
DH
t
CH
Figure 7. Logic Timing Diagram
Table IV. Timing Description
D5
D4
–10–
D3
D2
Min
50
50
25
35
25
35
20
20
250
250
D1
Typ
D0
t
CW
Max
t
W3
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
REV. 0