Frequently Asked Questions - Analog Devices LTC6952 Demo Manual

DEMO MANUAL DC2609A
DC2609A RECONFIGURATION
Table 3. LTC6952 Sync Mode Programming Options
SYNC/SYSREF EZS_SRQ Pins
Method State
EZS_SRQ Pin Differential, CML
or LVPECL
Differential LVDS
+
EZS_SRQ : CMOS
–
EZS_SRQ
+
SSRQ Register Bit EZS_SRQ
–
EZS_SRQ

FREQUENTLY ASKED QUESTIONS

1. Can the LTC6952Wizard control a LTC6952 on a board other than the DC2609A?
Yes, follow these steps.
Step 1: Configure the DC2026 for 3.3V SPI as shown in Figure 2
Step 2: Connect the DC2026 J1 connector SPI pins to the LTC6952 SPI pins. Refer to page two of the DC2609A sche-
matic for pin assignments.
2. Does the LTC6952 have Linduino Code available?
Yes, download the LTC6953 sketch in the LTSketchbook. To use the LTSketchbook and for instructions on how to start
using Linduino refer to the
LTC6952. It is recommended to use the LTC6952Wizard to create the best possible register settings for all conditions.
These LTC6952 register settings from LTC6952Wizard can be programmed in a lookup table.
6
R53 (Ω) R7 (Ω)
DNI DNI
100 100
200k 0
: GND
: GND 200k 0
: GND
Linduino Design Center. This will give programmers a head start in writing code for the
Board Modifications (DNI = Do Not Install)
R5 (Ω) R50 (Ω)
100 0
750 50
DNI 0
DNI 0
R10 (Ω) R3 (Ω)
0 DNI
50 130
0 DNI
0 DNI
R8 (Ω)
DNI
130
DNI
DNI
Rev 0