5

5

4

4

3

3

2

2

1

1

D

D

C

C

B

B

A

A

To Search Coil

From Receive

Coil

Transmit Coil is

Across J1 Pins 1 & 2

Type D Flip Flop Likely

used as the Transmit

Reference Timing Signal.

CMOS 2 Channel Multiplexer

J1-1 Red

J1-2 Blk

J1-3 Grn

J1-4 Org

J1-5 Blu

Note: With a 1 mH inductor substituted for the

transmit coil across J1 Pins 1 & 2, the normal

supply current is 100 mA.

*

*

*Note: The MTP2955 is an obsolete part. A

good sub for this part is the MTP12P10

MOSFET. The MTP3055 is still available,

but can also be substituted with the more

robust MTP12N10 MOSFET.

<Doc>

A

Minelab Sovereign XS-2 Transmit Driver Circuit

A

1

1

Tuesday, September 07, 2010

Title

Size

Document Number

Rev

Date:

Sheet

of

Q102

BC368

L102
1 mH

Q108
MTP3055E

Q104
BC368

L101
1 mH

U1

74HCF4053

12
13

2
1

5
3

6

14

15

4

7

11
10

9

X0
X1

Y0
Y1

Z0
Z1

EN

X

Y

Z

VEE

A
B
C

Q103

BC369

Q107
MTP2955

J1

CIRDIN_6-P

1

2

3

5
6
4

S

C1

1D
R

U2A

14013

6
3
5
4

2

1

Q101

BC369

Q105
MTP2955

Q106
MTP3055E

-5 VDC

+5 VDC

TP 101

-5 VDC

IN X

IN Y

IN Z