AN3213 datasheet(9/64 Pages) STMICROELECTRONICS

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AN3213

Electrical characteristics

Doc ID 17429 Rev 1

9/64

VCC power supply

current absorption – TX

mode

20 mA

500 mA

VCC = 8 to 18 V,

I(PA_OUT) = 0 to 1 A

rms

VDDIO digital supply

voltage

-10 %

3.3 V

+10 %

VDDIO digital supply

current absorption

40 mA

DL2 on (5 mA typ.),

no external

microcontroller

connection through J1

Maximum required

power (typical

application)

7 W

VCC = 13 V

Measured over a continuous transmission period of 3000 seconds (steady-state thermal dissipation).

Note that STMicroelectronics does not guarantee transformer isolation. STMicroelectronics assumes no responsibility for

the consequences that may arise from that risk.

Table 1.

Electrical and thermal characteristics of the ST7570 demonstration board (continued)

Parameter

Value

Notes

Table 2.

TX_OUT level vs. TX_GAIN - typical values

TX_GAIN

TX_OUT

[dBµV rms]

[V rms]

123

1.420

122

1.265

121

1.128

120

1.005

119

0.896

118

0.798

117

0.712

116

0.634

115

0.565

114

0.504

113

0.449

112

0.400

111

0.357

110

0.318

109

0.283

108

0.252

107

0.225

106

0.201

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