EVM629AXF View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'EVM629AXF' PDF : 16 Pages View PDF
Edge629
TEST AND MEASUREMENT PRODUCTS
Circuit Description (continued)
Programming
The Edge629 is programmed serially with 3 control lines:
SDI
–
serial data input
CS
–
chip select
UPDATE –
register update
which are all synchronous with CK. With CS valid (high),
rising edge of CK will load SDI into the 16 bit shift register.
With CS valid and UPDATE valid (high), CK high will make
the selected latch go transparent. The falling edge of CK
will then latch the data (see Figures 6 and 7).
Data and address information are combined in the 16 bit
word. Bits 0–6 are used for data, bits 11–15 for address.
Bits 11–14 select 1 of 16 destinations, bit 15, if high,
selects all 16 locations to be loaded simultaneously (use-
ful for preloading all registers to a default state).
Bit 15 14 13 12 11 10
Ad-
dr
LA A3 A2 A1 A0
Delay Function
0 0 0 0 0 0 X Channel 0, Coarse Delay
1 0 0 0 0 1 1 Channel 0, Fine Delay
2 0 0 0 1 0 1 Channel 0, Falling Edge Adjust
3 0 0 0 1 1 X Not Used
4 0 0 1 0 0 X Channel 1, Coarse Delay
5 0 0 1 0 1 1 Channel 1, Fine Delay
6 0 0 1 1 0 1 Channel 1, Falling Edge Adjust
7 0 0 1 1 1 X Not Used
8 0 1 0 0 0 X Channel 2, Coarse Delay
9 0 1 0 0 1 1 Channel 2, Fine Delay
A 0 1 0 1 0 1 Channel 2, Falling Edge Adjust
B 0 1 0 1 1 X Not Used
C 0 1 1 0 0 X Channel 3, Coarse Delay
D 0 1 1 0 1 1 Channel 3, Fine Delay
E 0 1 1 1 0 1 Channel 3, Falling Edge Adjust
F 0 1 1 1 1 X Not Used
X 1 X X X X 0 All Channels, Coarse Delay
X 1 X X X X 1 All Channels, All Functions
4.20
V = Vanode – Vcathode; Vcathode = VEE
4.00
3.80
3.60
3.40
3.20
3.00
: IFORCE = 100µ/Anode
: IFORCE = 10µ/Anode
: IFORCE = 1µ/Anode
2.80
2.60
2.40
2.20
0.00
50.0
100
150
Temp (˚C)
Figure 5. Voltage vs. Temperature for Thermal Diode String
2005 Semtech Corp. Rev. 3, 8/1/05
7
www.semtech.com
Share Link: 
