Uniden PRO520E (UT-317A)
Documentation Project

CBTricks.com

Integrated Circuits Voltage Chart

Integrated Circuits

LA1185

IC1

Voltage

Pin

RX

TX

    RF Gain MIN  

1

0.8

1.2

1.2

2

1.5

1.5

1.5

3

8

8

8

4

1.5

1.5

1.5

5

0

0

0

6

7.5

7.5

7.5

7

7.2

7.2

7.2

8

8

8

8

9

8

8

8

TDA1220B

IC2

Voltage

Pin

RX

TX

1

7.8

7.8

2

1.4

1.4

3

8

8

4

1.4

1.4

5

1.4

1.4

6

7.4

7.4

7

8

8

8

0.8

0.8

9

1.8

1.8

10

7.9

7.9

11

0

0

12

0

0

13

0

0

14

7.4

7.4

15

7.4

7.4

16

0

0

M5223L

IC3

Voltage

Pin

RX

TX

   
SQ MAX
 

1

0.2

0.2

0.2

2

1.2

1.2

1.2

3

1.2

1.2

1.2

4

0

0

0

5

2

1.2

2

6

1.6

1.6

1.6

7

6.5

0

7

8

8

8

8

TDA1905

IC4

Voltage

Pin

RX

TX

   
  
SQ MAX
  

1

7

7

7

2

13.6

13.6

13.6

3

13.6

13.6

13.6

4

3

0

7.2

5

0

0

0

6

2.5

2.5

2.5

7

2.5

2.5

2.5

8
2.4
2.4
2.4
9
0
0
0
10
0
0
0
11
0
0
0
12
0
0
0
13
0
0
0
14
0
0
0
15
0
0
0

16

0

0

0

SM5124A

IC5

Voltage

Pin

RX

TX

1

2.6

2.6

2

3

3

3

6

6

4

6

6

5

3

3

6

3

3

7

3

3.6

8

0.2

5.8

9

2.9

2.9

10

0.6

0.6

11

0.6

0.6

12

0.6

0.6

13

6

6

14

6.4

6.4

15

0

0

16
6.4
6.4
17
6.4
6.4

18

0

0

L7808CV

IC6

Voltage

Pin

RX

TX

1

13.6

13.6

2

0

0

3

8

8

LB1423

IC7

Voltage

Pin

RX

TX

1

6

6

2

6

6

3

6

6

4

6

6

5

0

0

6

0.2

0.2

7

0.2

0.2

8

0.2

0.2

9

4

4

 


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we cannot guarantee that the instructions will work on every radio presented.