ST7538QTR STMicroelectronics, ST7538QTR Datasheet - Page 28

• Manufacturer Part Number: ST7538QTR
• Description: IC TXRX FSK POWER LINE 44-TQFP
• Manufacturer: STMicroelectronics
• Type: Transceiverr

Specifications of ST7538QTR

• Number Of Drivers/receivers: 1/1
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 44-TQFP Exposed Pad, 44-eTQFP, 44-HTQFP, 44-VQFP
• For Use With: 497-5484 - BOARD EVAL ST7538 PWR LINE TXRX
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Protocol: -
• Other names: 497-5526-2

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