UPD9903 Datasheet, PDF (12/28 Pages) NEC – UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC

µPD9903
AC characteristics (TA = 0 to 70 °C, VDD = 5 V ± 0.25 V, VDG = VAG = 0, fDCLK = 2048 kHz)
Parameter
Data enable delay time
Data delay time
Data hold time
Delay time to EXS falling edge
Delay time to EXS rising edge
EXD data delay time
Signaling bit set-up delay
time
Status bit set-up delay time
LED driver set-up delay time
Delay time to rising edge
Delay time to falling edge
Transmit delay time to
external bit
Symbol
tDZX1
tDZX2
tDDX
tHZX
tDEXSf
tDEXSr
tDEXD
tDSIG
Conditions
HWX and TYPE pins, when FS is delayed
longer than DCLK
HWX and TYPE pins, when DCLK is
delayed longer than FS
HWX pin
HWX and TYPE pins
EXS pin
EXS pin
EXD pin
MIN.
30
tDST
tDLED
tTHL
tTLH
tDAUX
BSY and SUS pins
AUX pin
TYP.
MAX.
170
170
180
200
120
120
120
2
2
2
100
100
125
Units
ns
ns
ns
ns
ns
ns
ns
µs
µs
µs
ns
ns
µs
12