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ST7538Q Datasheet(PDF) 28 Page - STMicroelectronics

Part # ST7538Q
Description  FSK power line transceiver
PDF  44 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7538Q Datasheet(HTML) 28 Page - STMicroelectronics

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Functional description
ST7538Q
28/44
Voltage control loop formula
Note:
The rate of R2 takes in account the input resistance on the SENSE pin (36 K
Ω).
5.6nF capacitor effect has been neglected.
Figure 15. Typical output current vs rcl
Table 10. Vout vs R1 & R2 resistors value
Vout (Vrms)
Vout (dB
µV)
(R1+R2)/R2
R2 (K
Ω)
R1 (K
Ω)
0.150
103.5
1.1
7.5
1.0
0.250
108.0
1.9
5.1
3.9
0.350
110.9
2.7
3.6
5.6
0.500
114.0
3.7
3.3
8.2
0.625
115.9
4.7
3.3
11.0
0.750
117.5
5.8
2.7
12.0
0.875
118.8
6.6
2.0
11.0
1.000
120.0
7.6
1.6
10.0
1.250
121.9
9.5
1.6
13.0
1.500
123.5
10.8
1.6
15.0
VR
PK
R
1
R
2
+
R
2
--------------------
VCL
TH
VCL
HYST
±
()
⋅
≅
100
125
150
175
200
225
250
275
300
325
Irms
(mA)
2
2.5
3
3.5
Rcl(K
Ω)
D01IN1311
4
4.5
5



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