EL4584C Elantec Semiconductor, Inc. (acquired by Intersil), EL4584C Datasheet - Page 3

• Manufacturer Part Number: EL4584C
• Description: Horizontal Genlock, 4FSC
• Manufacturer: Elantec Semiconductor, Inc. (acquired by Intersil)

AC Electrical Characteristics
Note 2 Noisy video signal input to EL4583C H-sync input to EL4584C Test for positive signal lock
Pin Description
Pin No
16 1 2
3
4
5
6
7
8
9
10
11
12
13
14
15
VCO Gain
H-sync S N Ratio
Jitter
Jitter
Parameter
Prog A B C
Osc VCO Out
V
Osc VCO In
V
Charge Pump Out Connect to loop filter If the H-sync phase is leading or H-sync frequency
Div Select
Coast
H-sync In
V
Lock Det
Ext Div
V
CLK Out
DD
SS
DD
SS
Pin Name
(A)
(D)
(A)
(D)
20 MHz
Digital inputs to select
Output of internal inverter oscillator Connect to external crystal or LC tank VCO circuit
Analog positive supply for oscillator PLL circuits
Input from external VCO
Analog ground for oscillator PLL circuits
into the filter capacitor to increase VCO frequency If H-sync phase is lagging or frequency
current is pumped out of the filter capacitor to decrease VCO frequency During coast mode or when
locked charge pump goes to a high impedance state
Divide select input When high the internal divider is enabled and EXT DIV becomes a test pin
outputting CLK
external
Tri-state logic input Low(
High(
Horizontal sync pulse (CMOS level) input
Positive supply for digital I O circuits
Lock Detect output Low level when PLL is locked Pulses high when out of lock
External Divide input when DIV SEL is low internal
Ground for digital I O circuits
Buffered output of the VCO
Test Circuit 1
V
VCXO Oscillator
LC Oscillator (Typ)
l
DD
Conditions
d
e
N
V
Prog A
Pin 16
CC
5V (Note 2)
)
0
0
0
0
1
1
1
1
d
e
N When low the internal divider is disabled and EXT DIV is an input from an
coast mode
d
VCO Divisors Table 1
N value for internal counter See table below for values
k
Prog B
(V
Pin 1
0
0
1
1
0
0
1
1
DD
V
Temp
25 C
25 C
25 C
25 C
CC
e
)
5V T
e
3
normal mode Hi Z(or
Prog C
Pin 2
A
0
1
0
1
0
1
0
1
e
Min
25 C unless otherwise noted)
35
Function
Horizontal Genlock 4 F
d
Div Value
N output when DIV SEL is high
Typ
1135
15 5
851
864
944
682
858
780
910
10
N
1
to
Max
V
CC
l
EL4584C
)
CLK
e
fast lock mode
d
Level
Test
N current is pumped
V
V
V
V
k
CLK
Units
dB
dB
ns
ns
d
SC
N