DAC5682 datasheet(36/49 Pages) TI

36 / 49 page

DACDataClock

Ideal

Data

Placement

Ideal

Data

Placement

DACData,DACFrame

T0511-01

Min

Skew

Min

Skew

Max

Skew

Max

Skew

GC5330

GC5337

SLWS226 B

– DECEMBER 2010 – REVISED JANUARY 2011

www.ti.com

Figure 19. TX LVDS Timing Specifications (TXA and TXB) (DACCLK Aligned With Data)

The envelope modulator interface uses the same pins as the DAC interface. The ET connections are shown in

Table 5. The ET modulator timing is listed in Table 15.

Data is output most-significant byte (half-word) first with the rising edge of the clockout in the middle of

data-stable time, then least-significant byte (half-word) with the falling edge of the clockout in the middle of the

data-stable time.

The ADC output interface has two types of timing, based on the clock centered over the data, or clock

edge-aligned with the data. The GC533x only processes clock centered over the data. Each ADC type is

characterized by the data and clock alignment, in Table 17, from which the proper table and timing diagram can

be determined as follows: ADC W7 in Table 18 and Figure 20; ADC W14 in Table 19 and Figure 21; and ADC

B7 in Table 20 and Figure 20. Note: The general ADC routing is to align the clock and data traces with a

common routing delay. For the ADS5463 and ADS5474 the clock trace must be adjusted in length to meet the

system timing design.

Note: when RXA is used as a baseband interface, the specification is shown in table Table 17. The table shows

a sampling of ADCs released at publication time. If the clock is not centered, the pc board may require added

routing delay to the clock out to satisfy the setup time requirements. See (*) in Table 17.

– word-wide ADC interface, clock on bit 7

W14

– word-wide ADC interface, clock on bit 14

– byte-wide ADC interface, clock on bit 7

B14

– byte-wide ADC interface, clock on bit 14

Submit Documentation Feedback

Product Folder Link(s): GC5330 GC5337

DAC5682 Datasheet(PDF) 36 Page - Texas Instruments

DAC5682 Datasheet(HTML) 36 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

Datasheet Download

Link URL