LMH1983 Datasheet, PDF (8/55 Pages) National Semiconductor (TI) – Generating 44.1 kHz Based highly integrated programmable audio

LMH1983
SNLS309I – APRIL 2010 – REVISED DECEMBER 2014
7.6 Frame Timing Outputs Timing Requirements
t_R
Rise time 20% to 80%
t_F
Fall time 20% to 80%
15 pF load
15 pF load
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MIN NOM MAX UNIT
1
ns
1
ns
7.7 Frame Timing Outputs Switching Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
t_D1(1) Timing output delay time
TOF1 delay measured from the CLKout1 clock reset
edge. Delay spec applies for all output clock and format
supported by the output pair following output initialization.
15 pF load.
TOF2 delay measured from the CLKout2 clock reset
t_D2
Timing output delay time
edge. Delay spec applies for all output clock and format
supported by the output pair following output initialization.
15 pF load.
TOF3 delay measured from the CLKout3 clock reset
t_D3
Timing output delay time
edge. Delay spec applies for all output clock and format
supported by the output pair following output initialization.
15 pF load.
TOF4 delay measured from the CLKout4 clock reset
t_D4
Timing output delay time
edge. Delay spec applies for all output clock and format
supported by the output pair following output initialization.
15 pF load.
MIN TYP MAX UNIT
ns
22
ns
2
ns
2
ns
22
(1) t_D for CLKoutX is measured from the positive clock edge of XOin to the positive clock edge of CLKoutX using 50% levels. The
measurement is taken at the clock cycle where the input and output clocks are phase aligned.
8
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