MC33780 Datasheet, PDF (9/37 Pages) Freescale Semiconductor, Inc – Dual DBUS Master with Differential Drive and Frequency Spreading

DYNAMIC ELECTRICAL CHARACTERISTICS
Table 4. Dynamic Electrical Characteristics (continued)
Characteristics noted under conditions 4.75 V ≤ V_CC ≤ 5.25 V, 9.0 V ≤ V_SUP ≤ 25 V, -40°C ≤ T_A ≤ 85°C unless otherwise
noted. Voltages relative to GND unless otherwise noted. Typical values noted reflect the approximate parameter means at
T_A = 25°C under nominal conditions unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
BUS RECEIVER
Receiver Delay Time (I_RSP = 0 mA / 11 mA step) ⁽¹⁵⁾
I_RSP = -6.0 mA to DSIR (INT) = 0.5 * V_CC
I_RSP = -6.0 mA to DSIR (INT) = 0.5 * V_CC
ns
t_DRH
250
–
750
t_DRL
250
–
750
Receiver Delay Time (I_RSP = COMP(TRIP) - 2.0 mA/COMP(TRIP) +
ns
2.0 mA step) ⁽¹⁵⁾
I_RSP = COMP(TRIP) to DSIR (INT) = 0.5 * V_CC
I_RSP = COMP(TRIP) to DSIR (INT) = 0.5 * V_CC
t_DRH
500
–
1500
t_DRL
500
–
1500
SPREAD SPECTRUM
Central Frequency Range
f_CEN
132
Bit Period Deviation (+/-) (f_CENMin ≤ f_CEN ≤ f_CENMax)
DEV[1:0] = 10
DEV[1:0] = 01 @ f_CEN=138.5KHz (Typ)
t_DEV10
400
t_DEV01
800
Frame Jitter (Max) (f_CENMin ≤ f_CEN ≤ f_CENMax) (PLL On)
DEV On
DEV Off
J_FRDEVON
–
J_FRDEVOFF
–
Notes
15. Delays are measured in test mode to determine the delay for analog signal path.
–
148
kHz
ns
–
600
–
1100
µs
–
±1.0
–
±1.0
Analog Integrated Circuit Device Data
Freescale Semiconductor
33780
9