MC145426 Ver la hoja de datos (PDF) - Motorola => Freescale
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MC145426 Datasheet PDF : 20 Pages
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ABSOLUTE MAXIMUM RATINGS (Voltage Referenced to VSS)
Rating
Symbol
Value
DC Supply Voltage
VDD – VSS
– 0.5 to + 9.0
Voltage, Any Pin to VSS
V
– 0.5 to VDD + 0.5
DC Current, Any Pin (Excluding VDD,
I
± 10
VSS)
Operating Temperature
TA
– 40 to + 85
Storage Temperature
Tstg
– 85 to + 150
RECOMMENDED OPERATING CONDITIONS (TA = 0 to 70°C)
Parameter
Unit
V
V
mA
°C
°C
Pins
This device contains circuitry to protect the
inputs against damage due to high static
voltages or electric fields; however, it is
advised that normal precautions be taken to
avoid applications of any voltage higher than
maximum rated voltages to this high imped-
ance circuit. For proper operation it is recom-
mended that Vin and Vout be constrained to
the range VSS ≤ (Vin or Vout) ≤ VDD.
Reliability of operation is enhanced if unused
inputs are tied to an appropriate logic voltage
level (e.g., either VSS or VDD).
Min
Max
Unit
DC Supply Voltage
Power Dissipation (PD = VDD, VDD = 5 V)
Power Dissipation (PD = VSS, TE = VSS)
MC145422 Frame Rate
VDD
4.5
VDD
—
VDD
—
MSI
7.9
5.5
V
80
mW
75
mW
8.1
kHz
MC145422 — MC145426 Frame Rate Slip (See Note 1)
—
—
0.25
%
CCI Clock Frequency (MSI = 8 kHz)
CCI
—
2.048
MHz
Data Clock Rate MC145422
TDC, RDC
64
2560
kHz
Modulation Baud Rate (See Note 2)
LO1, LO2
—
256
kHz
NOTES:
1. The MC145426 crystal frequency divided by 512 must equal the MC145422 MSI Frequency ± 0.25% for optimum operation.
2. Assumes crystal frequency of 4.096 MHz for the MC145426 and 2.048 MHz CCI for the MC145422.
DIGITAL CHARACTERISTICS (VDD = 5 V, TA = 0 to 70°C)
Parameter
Min
Max
Unit
Input High Level
3.5
—
V
Input Low Level
—
1.5
V
Input Current
Except LI
LI
– 1.0
– 100
1.0
µA
100
Input Capacitance
—
7.5
pF
Output High Current (Except Tx on MC145422
and Tx and PD on MC145426)
Output Low Current (Except Tx on MC145422
and Tx and PD on MC145426)
PD Output High Current (MC145426) (See Note 1)
PD Output Low Current (MC145426) (See Note 1)
Tx Output High Current
Tx Output Low Current
Tx Input Impedance (TE1 = VSS, MC145422)
Crystal Frequency (MC145426, Note 2)
VOH = 2.5 V
VOH = 4.6 V
VOL = 0.4 V
VOL = 0.8 V
VOH = 2.5 V
VOH = 4.6 V
VOL = 0.4 V
VOL = 0.8 V
VOH = 2.5 V
VOH = 4.6 V
VOL = 0.4 V
VOL = 0.8 V
– 1.7
– 0.36
0.36
0.8
– 90
– 10
60
100
– 3.4
– 0.7
1.7
3.5
100
4.0
—
mA
—
—
mA
—
—
µA
—
—
µA
—
—
mA
—
—
mA
—
—
kΩ
4.4
MHz
PCM Tone (TE = VDD, MC145426)
Three–State Current (SO1, SO2, VD, Tx on MC145422, Tx on MC145426)
– 22
– 18
dBm0
—
±1
µA
Vref Voltage (See Note 3)
2
3
V
X2 — Oscillator Output High Drive Current (MC145426) (See Note 4)
VOH = 4.6 V
– 450
—
µA
X2 — Oscillator Output Low Drive Current (MC145426) (See Note 4)
VOL = 0.4 V
450
—
µA
NOTES:
1. To overdrive PD from a low level to 3.5 V or a high level to 1.5 V requires a minimum of ± 800 µA drive capability.
2. The MC145426 crystal frequency divided by 512 must equal the MC145422 MSI frequency ± 0.25% for optimum performance.
3. Vref typically (9/20 VDD – VSS).
4. Output drive when X1 is being driven from an external clock.
MC145422•MC145426
4
MOTOROLA
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