SDA5273-2 SIEMENS [Siemens Semiconductor Group], SDA5273-2 Datasheet - Page 18

• Manufacturer Part Number: SDA5273-2
• Description: ICs for Consumer Electronics MEGATEXT and MEGATEXT PLUS ICs
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Characteristics (cont’d)
T
Parameter
CVBS-Input and ADC (
Input leakage current
Input capacitance
Ext. coupling capacitance
Sensitivity of clamp level to
current leakage/injection
ADC-range
CVBS-sync amplitude
Crystal Oscillator: XIN, XOUT
Bias resistance between XIN,
XOUT
Small signal voltage gain
Feedback capacitance
Pin capacitance
Crystal
Nominal frequency
Effect of temperature and
accuracy of adjustment
Temperature range
Resonant impedance
Equivalent parallel
Crystal load
Ext. capacitors
The center frequency of the MEGATEXT horizontal PLL is proportional to the crystal frequency. In PAL-mode the
centre frequency is 15.625 kHz for the typical crystal frequency of 20.48 MHz. Deviations from the typical crystal
frequency will shift the range of the horizontal frequencies where the PLL is able to lock.
Semiconductor Group
A
= 0 to 70 C
C
V
REF
= 3 V)
Symbol
I
C
C
R
G
C
C
f
d
T
Z
C
C
O
l
f/f
A
R
Xbias
P
CPL
FB
P
L
1,2
V
O
min.
– 1.0
– 15
1.7
0.1
60
8
– 5 %
0
Limit Values
18
typ.
100
120
13
20.48
15
15
max.
1.0
45
15
2.0
180
4.0
7.0
+ 5 %
70
40
0.1
Unit
pF
nF
mV/
V
V
k
pF
pF
MHz
pF
mW
pF
C
A
A
Test Condition
CVBS = 2 V
I
C
V
100 kHz, 50 mVpp
l
REF
CPL
= 2 A
SDA 5273-2 / 75-2
= 3 V
= 100 nF
SDA 5273 / 75
1997-09-01