TL7231MD Datasheet, PDF (33/37 Pages) Samsung semiconductor – FULL LAYER-III ISO/IEC 11172-3 AUDIO DECODER

TL7231MD
AC ELECTRICAL CHARACTERISTICS
AC Test Condition
Parameter
Temperature
Supply Voltage
Input Rise and Fall Times
Output Load
Value
85°C
3.0V
2ns
10pF
Serial port
The following table defines the timing parameters for the serial port pins. The numbers shown in
Figure 21 correspond to each number in the first column of the table.
NO. Symbol
Description
MIN
1 T_CC
2 T_D
3 T_SU
4 T_H
5 T_REQ
Cycle time of CLKXRM
Delay time, CLKXRM to DXRM valid
Setup time, DXRM before CLKXRM low
Hold time, DXRM from CLKXRM low
Request check time, falling edge of CLKXRM
to falling edge of REQSTRM
144.7
42.2
1.9
1.2
295.2
MAX Unit
ns
78.4 ns
ns
ns
331.3 ns
CLKXRM
DXRM
(Transmit)
DXRM
(Receive)
REQSTRM
1
2
Bit0
Bit1
Bit2
Bit3
Bit4
Bit5
Bit6
Bit7
Bit0
Bit1
Bit2
Bit3
Bit4
Bit5
Bit6
Bit7
34
5
Figure 21. Timing for Serial Port in case of LSB-First Mode
SAMSUNG Electronics CO.
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