STW5095_07 Datasheet, PDF (52/73 Pages) STMicroelectronics – Low-power asynchronous stereo audio Codec with integrated power amplifiers

STw5095
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Timing specifications
Timing specifications
Note:
Note:
Unless otherwise specified, V_CCIO = 1.71 V to 2.7 V,T_amb = -30°C to 85°C, max capacitive
load 20 pF; typical characteristics are specified at V_CCIO = 2.4 V, T_amb = 25 °C; all signals
are referenced to GND, see Note below figure for timing definitions.
Figure 13. A.C. testing input-output waveform
INPUT ⁄ OUTPUT
0.8• V_CCIO
0.7• V_CCIO
0.2• V_CCIO
0.3• V_CCIO
TEST POINTS
0.7• V_CCIO
0.3• V_CCIO
AC Testing: inputs are driven at 0.8•V_CCIO for a logic ‘1’ and 0.2•V_CCIO for a logic ‘0’.
Timing measurements are made at 0.7•V_CCIO for a logic ‘1’ and 0.3•V_CCIO for a logic ‘0’.
A signal is valid if it is above V_IH or below V_IL and invalid if it is between V_IL and V_IH. For the
purpose of this specification the following conditions apply (see Figure 13 above):
a) All input signal are defined as: V_IL = 0.2•V_CCIO, V_IH = 0.8•V_CCIO, t_R < 10ns, t_F < 10ns.
b) Delay times are measured from the inputs signal valid to the output signal valid.
c) Setup times are measured from the data input valid to the clock input invalid.
d) Hold times are measured from the clock signal valid to the data input invalid.
All timing specifications subject to change.
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