TC94A48FG Datasheet, PDF (29/36 Pages) Toshiba Semiconductor – Single-chip Audio Digital Signal Processor

TC94A48FG
Timing
Clock input pin (XI)
Characteristics
Clock cycle
Clock “H” duration
Clock “L” duration
Symbol
t_XI
t_XIH
t_XIL
Test Condition
fs=32kHz~48kHz, 256fs input
⎯
⎯
Min. Typ. Max. Unit
80.0 88.6 124.0
40.0 44.3 62.0 ns
40.0 44.3 62.0
Reset pin (/RST)
Characteristics
Symbol
Test Condition
Standby time
Reset pulse width
t_RRS
⎯
t_WRS
⎯
Note 16: The /RST pin must be driven low at power-on.
Min. Typ. Max. Unit
10
⎯
⎯
ms
1.0
⎯
⎯
µs
Audio Serial Interface (BCKI0~1, BCKO, LRCKI0~1, LRCKO, SDI0~3, SDO0~3)
Characteristics
LRCKIx setup time
LRCKIx hold time
SDIx setup time
SDIx hold time
BCKIx clock cycle
BCKIx clock “H” duration
BCKIx clock “L” duration
SDOx output delay(1)
SDOx output delay(2)
LRCKO output delay
Symbol
t_LBS
t_LBH
t_SDI
t_HDI
t_BCK
t_BCH
t_BCL
t_DO1
t_DO2
t_DCLR
Test Condition
Min.
CL = 30 pF
75
fs = 48 kHz or lower
−75
BCKI0 and BCKI1 input: 64 fs or lower
50
50
300
150
150
C_L = 30 pF
⎯
C_L = 30 pF
⎯
C_L = 30 pF
⎯
Typ. Max. Unit
⎯
⎯
⎯
75
⎯
⎯
⎯
⎯
⎯
⎯
ns
⎯
⎯
⎯
⎯
⎯
60
⎯
60
⎯
40
29
2005-09-28