DLPC3470 datasheet(59/70 Pages) TI1

59 / 70 page

DLPC3470

www.ti.com

DLPS110 – APRIL 2018

Product Folder Links: DLPC3470

Submit Documentation Feedback

Table 12. Recommended Crystal Configuration()() (continued)

PARAMETER

RECOMMENDED

UNIT

CL1 external crystal load capacitor

See equation in Figure 36 notes

CL2 external crystal load capacitor

See equation in Figure 36 notes

PCB layout

A ground isolation ring around the

crystal is recommended

(1)

These crystal devices appear compatible with the DLPC3470 controller , but only those marked with yes in the DVT column have been

validated.

(2)

Crystal package sizes: 2.0 × 1.6 mm for all crystals

(3)

Operating temperature range: –30°C to +85°C for all crystals

If an external oscillator is used, then the oscillator output must drive the PLL_REFCLK_I pin on the DLPC3470

controller ASIC and the PLL_REFCLK_O pins should be left unconnected.

Table 13. DLPC3470 controller Recommended Crystal Parts(1)(2)(3)

PASSED

DVT

MANUFACTURER

PART NUMBER

SPEED

TEMPERATURE

AND AGING

ESR

LOAD

CAPACITANCE

Yes

KDS

DSX211G-24.000M-8pF-50-50

24 MHz

±50 ppm

120-

Ω max

8 pF

Yes

Murata

XRCGB24M000F0L11R0

24 MHz

±100 ppm

120-

Ω max

6 pF

Yes

NDK

NX2016SA 24M

EXS00A-CS05733

24 MHz

±145 ppm

120-

Ω max

6 pF

11.1.3 General PCB Recommendations

TI recommends 1-oz. copper planes in the PCB design to achieve needed thermal connectivity.

11.1.4 General Handling Guidelines for Unused CMOS-Type Pins

To avoid potentially damaging current caused by floating CMOS input-only pins, TI recommends that unused

ASIC input pins be tied through a pullup resistor to its associated power supply or a pulldown to ground. For

ASIC inputs with an internal pullup or pulldown resistors, it is unnecessary to add an external pullup or pulldown

unless specifically recommended. Note that internal pullup and pulldown resistors are weak and should not be

expected to drive the external line. The DLPC3470 controller implements very few internal resistors and these

are noted in the pin list. When external pullup or pulldown resistors are needed for pins that have built-in weak

pullups or pulldowns, use the value 8 kΩ (max).

Unused output-only pins should never be tied directly to power or ground, but can be left open.

When possible, TI recommends that unused bidirectional I/O pins be configured to their output state such that

the pin can be left open. If this control is not available and the pins may become an input, then they should be

pulled-up (or pulled-down) using an appropriate, dedicated resistor.

DLPC3470 Datasheet(PDF) 59 Page - Texas Instruments

DLPC3470 Datasheet(HTML) 59 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70

Datasheet Download

Link URL