Preliminary
HT9015
Pin Assignment
V
V
V
1
V
1
E
2
N
2
V
I
D
G
I
Q
A
N
N
D
D
R
B
R
C
C
C
O
O
C
1
_
V
C
O
2
4
4
4
4
4
4
4
4
4
3
3
3
3
3
3
3
3
3
3
2
2
2
2
2
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
1
2
3
4
5
6
7
8
9
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
C
O
N
T
C
_
R
E
C
T
2
R
X
X
_
O
O
U
U
T
T
S
T
M
M
I
I
X
X
I
O
N
T
_
R
E
F
G
N
D
2
S
T
R
U
T
T
X
_
I
N
_
E
C
T
V
C
C
3
N
D
M
I
X
X
I
O
N
L
L
O
O
1
2
_
R
D
E
M
C
N
I
U
T
S
I
G
_
O
U
T
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
C
C
C
1
C
S
L
K
F
F
_
_
I
O
N
D
A
T
A
E
N
T
B
D
1
F
I
L
_
_
O
U
T
U
T
F
I
L
_
I
N
U
A
D
C
O
M
P
_
O
U
T
F
_
O
U
T
C
_
N
F
_
F
F
C
I
I
L
L
_
_
O
I
U
T
M
I
C
O
U
T
_
N
M
I
C
_
_
I
N
N
_
O
O
M
M
P
P
_
_
I
O
N
P
R
E
I
_
S
C
U
T
P
R
E
_
O
U
T
S
I
E
X
P
_
O
U
T
A
T
_
A
L
M
R
E
C
E
_
I
N
O
2
R
O
1
H
T
9
0
1
5
4
8
S
S
O
P
Pin Description
Pin No.
Pin Name
VCO2
I/O
I
Description
Connects LC network with VCO1 pin to provide the tank circuit
for the received voltage control oscillator
1
2
C_RECT
RX_OUT
Normally connected to ground through a capacitor.
¾
Receiver phase detector output. The PDT of RX-PLL detects
phase errors from the received PLL. The output is connected to
external low pass filter.
3
4
O
O
Transmitter phase detector output. The PDT of TX-PLL detects
phase errors from the transmitted PLL. The output is connected
to an external low pass filter.
TX_OUT
5
6
GND2
TX_IN
Digital ground
¾
14-bit programmable transmit counter input. The output signal
from the external VCO circuit can be AC coupled to this pin.
I
3
April 10, 2000
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
