CS4923/4/5/6/7/8/9
SWITCHING CHARACTERISTICS—CLKIN
(TA = 25 °C; VA, VD = 3.3 V ±5%; Inputs: Logic 0 = DGND, Logic 1 = VD, CL = 20 pF)
Parameter
Symbol
Min
CLKIN period for internal DSP clock mode
Tclki
20
CLKIN high time for internal DSP clock mode
Tclkih
8
CLKIN low time for internal DSP clock mode
Tclkil
8
CLKIN period for external DSP clock mode
Tclke
20
CLKIN high time for external DSP clock mode
Tclkeh
9
CLKIN low time for external DSP clock mode
Tclkel
9
Max
Unit
3800
ns
ns
ns
25
ns
ns
ns
CLKIN
Tclkih
Tclki
Tclkil
Figure 3. CLKIN with CLKSEL = VSS = PLL Enable
CLKIN
Tclkeh
Tclkel
Tclke
Figure 4. CLKIN with CLKSEL = VD = PLL Bypass
DS262F2
7