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GS9015A PIN DESCRIPTIONS
PIN NO.
SYMBOL
TYPE
DESCRIPTION
1
V
EE1
Power Supply
. Most negative power supply connection.
2
V
EE1
V
EE1
Power Supply
. Most negative power supply connection.
3
Power Supply.
Most negative power supply connection.
4
V
EE1
Power Supply.
Most negative power supply connection.
5,6
DDI/DDI
Input
Direct Data Inputs (true and inverse).
Pseudo-ECL, differential serial data inputs. They may be
directly driven from true ECL drivers when V
EE
= -5V and V
CC
= 0 V.
7
V
CC1
Power Supply
. Most positive power supply connection. (Phase Detector, Carrier Detect).
8, 9
V
EE1
Power Supply
. Most negative power supply connection.
10 /2 EN
Input
/2 Enable-
TTL compatible input used to enable the divide by 2 function.
11 V
EE3
Power Supply.
Most negative power supply connection. (VCO, MUX, Standard Select)
12
LOOP FILT
Loop Filter.
Node for connecting the loop filter components.
13
R
VCO0
Input
VCO Resistor 0.
Analog current input used to set the centre frequency of the VCO when the two
Standard Select bits (pins 20 and 21) are set LOW. A resistor is connected from this pin to V
EE
.
14
R
VCO1
Input
VCO Resistor 1.
Analog current input used to set the centre frequency of the VCO when Standard
Select bit 0 (pin 20) is set HIGH and bit 1 (pin 21) is set LOW. A resistor is connected from this pin to V
EE
.
15
R
VCO2
Input
VCO Resistor 2.
Analog current input used to set the centre frequency of the VCO when Standard
Select bit 0 (pin 20) is set LOW and bit 1 (pin 21) is set HIGH. A resistor is connected from this pin to V
EE
.
16 V
EE3
Power Supply
. Most negative power supply connection.
17 R
VCO3
Input
VCO Resistor 3.
Analog current input used to set the centre frequency of the VCO when the two
Standard Select bits (pins 20 and 21) are set HIGH. A resistor is connected from this pin to V
EE
.
Fig. 2 GS9015A Pin Connections
SD0
SD0
SC0
SC0
SS1
SS0
CD
DDI
DDI
V
CC1
V
EE1
V
EE1
V
EE1
V
EE1
V
EE1
V
EE1
V
EE1
V
EE2
V
CC3
GS9015A
TOP VIEW
LOOP R
VCO0
R
VCO1
R
VCO2
V
EE3
R
VCO3
V
CC2
FILT
25
24
23
22
21
20
19
5
6
7
8
9
10
11
12
13 14 15 16 17 18
4 3 2 28 27 26
/2 EN
V
EE3