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ST7540

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P44
ST7540 Electrical characteristics
13/44
5V Voltage regulator
VDC
Linear regulator output
voltage
0 < Io < 50mA
7.5V < V
CC
< 13.5V
-5% 5.05 +5% V
3.3V Voltage regulator
V
DD
Linear regulator output
voltage
0 < Io < 50mA
7.5V < V
CC
< 13.5V
-5% 3.3 +5% V
Other functions
T
RSTO
Reset time
See Figure 23;
Xtal = 16MHz
50 ms
T
WD
Watch-dog pulse width See Figure 23 125 ns
T
WM
Watch-dog pulse
period
Minimum value.
See Figure 23
250 ns
Maximum value.
See Figure 23
1490 ms
T
WO
Watch-dog time out See Figure 23 1.5 s
T
OUT
TX time out
Control register bit 7
and bit 8
1
3
s
T
OFF
Time Out OFF time Figure 22 125 ms
T
OFFD
RxTx 0->1 vs. time out
delay
Figure 22 20 µs
T
CD
Carrier detection time
selectable by register
Control register
bit 9 and bit10
Figure 14
500
1
3
5
µs
ms
ms
ms
T
DCD
CD_PD Propagation
delay
Figure 14 300 500 µs
M
CLK
Master clock output
selectable by register
Control register
bit 15 and bit 16
See Tabl e 1 2
fclock
fclock/2
fclock/4
off
MHz
BAUD Baud rate
Control register
bit 3 and bit 4
See Tabl e 1 2
600
1200
2400
4800
Baud
Table 5. Electrical characteristics (continued)
(
V
DD
= +5V,
V
CC
=+9 V,
V
SS
= S
V
SS
= GND = 0V,-40°C
≤
T
A
≤
85°C, T
J
< 125°C,
unless otherwise specified)
Symbol Parameter Test condition Min. Typ. Max. Unit
Electrical characteristics ST7540
14/44
Figure 3. PLI configuration for PA_OUT distortions measurement
Serial Interface
T
B
Baud rate Bit Time
(1/BAUD)
Control register bit 3
and bit 4
(See Figure 13)
1667
833
417
208
µs
Ts Setup time
see Figures 8, 9, 10, 11
& 12
5ns
T
H
Hold time
see Figures 8, 9, 10, 11
& 12
2ns
T
CR
CLR/T vs. REG_DATA
or RxTx
see Figures 8, 9, 10, 11
& 12
T
B
/4
T
CC
CLR/T vs. CLR/T
see Figures 8, 9, 10, 11
& 12
T
B
2*T
B
T
DS
Setup time
see Figures 8, 9, 10, 11
& 12
T
B
/4 T
B
/2
T
DH
Hold time
see Figures 8, 9, 10, 11
& 12
T
B
/4 T
B
/2
T
CRP
T
H
T
B
/2
1. Not tested, guaranteed by design
Table 5. Electrical characteristics (continued)
(
V
DD
= +5V,
V
CC
=+9 V,
V
SS
= S
V
SS
= GND = 0V,-40°C
≤
T
A
≤
85°C, T
J
< 125°C,
unless otherwise specified)
Symbol Parameter Test condition Min. Typ. Max. Unit
Vcc
10 kΩ
2.7 kΩ
5 k
Ω
150 pF 100 pF
1uF
30 Ω
PA
PA_OUT
PA_IN -
PA_IN +
Measurement point
Vss
V
AC
= 2Vpp
V
DC
= 1.9 V
D03IN142
6
ST7540 Crystal resonator and external clock
15/44
5 Crystal resonator and external clock
Figure 4. External clock waveform
Figure 5. Crystal Resonator
X2
SVss
Exte rn al C loc k
SWING
External Clock
OFFSET
X1 X2
D03IN1425A
32 pF 32 pF
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P44

ST7540

Mfr. #:
Buy ST7540
Manufacturer:
STMicroelectronics
Description:
Network Controller & Processor ICs FSK powerline transceiver
Lifecycle:
New from this manufacturer.
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