MAX9242/MAX9244/MAX9246/MAX9254
21-Bit Deserializers with Programmable
Spread Spectrum and DC Balance
_______________________________________________________________________________________
9
WORST-CASE AND PRBS SUPPLY CURRENT
vs. FREQUENCY
(NON-DC-BALANCED MODE, NO SPREAD)
MAX9242 toc01
FREQUENCY (MHz)
SUPPLY CURRENT (mA)
35302520
40
50
60
70
80
90
100
30
15 40
WORST-CASE PATTERN
2
7
- 1 PRBS
WORST-CASE AND PRBS SUPPLY CURRENT
vs. FREQUENCY
(DC-BALANCED MODE, NO SPREAD)
MAX9242 toc02
FREQUENCY (MHz)
SUPPLY CURRENT (mA)
35302520
40
50
60
70
80
90
100
30
15 40
WORST-CASE PATTERN
2
7
- 1 PRBS
WORST-CASE AND PRBS SUPPLY CURRENT
vs. FREQUENCY
(DC-BALANCED MODE, 2% SPREAD)
MAX9242 toc03
FREQUENCY (MHz)
SUPPLY CURRENT (mA)
35302520
40
50
60
70
80
90
100
30
15 40
WORST-CASE PATTERN
2
7
- 1 PRBS
WORST-CASE AND PRBS SUPPLY CURRENT
vs. FREQUENCY
(DC-BALANCED MODE, 4% SPREAD)
MAX9242 toc04
FREQUENCY (MHz)
SUPPLY CURRENT (mA)
35302520
40
50
60
70
80
90
100
30
15 40
WORST-CASE PATTERN
2
7
- 1 PRBS
RxOUT_ OUTPUT LOADING
MAX9242 toc05
LOAD (mA)
DROPOUT (V)
21
2.9
3.0
3.1
3.2
3.3
3.4
2.8
03
MAX9254
MAX9244
Typical Operating Characteristics
(V
CC
= PLLV
CC
= LVDSV
CC
= V
CCO
= +3.3V, C
L
= 8pF, PWRDWN = high, differential input voltage |V
ID
| = 0.2V, input common-mode
voltage V
CM
= 1.2V, T
A
= +25°C, MAX9244/MAX9254, unless otherwise noted.)
RxOUT_TRANSITION TIME
vs. OUTPUT SUPPLY VOLTAGE (V
CCO
)
MAX9242 toc06
OUTPUT SUPPLY VOLTAGE (V)
OUTPUT TRANSITION TIME (ns)
3.53.02.52.0
2
4
6
8
10
12
14
0
1.5 4.0 5.04.5 5.5
C
LHT
C
HLT
RxCLKOUT POWER SPECTRUM
vs. FREQUENCY
(RxCLKIN_ = 33MHz, NO SPREAD)
MAX9242 toc07
FREQUENCY (MHz)
POWER SPECTRUM (dBm)
33
-40
-30
-20
-10
0
10
20
-50
-70
-60
-80
30 36
RESOLUTION BW = 100kHz
VIDEO BW = 100kHz
ATTENUATION = 50dB
RxCLKOUT POWER SPECTRUM
vs. FREQUENCY
(RxCLKIN_ = 33MHz, 2% SPREAD)
MAX9242 toc08
FREQUENCY (MHz)
POWER SPECTRUM (dBm)
33
-40
-30
-20
-10
0
10
20
-50
-70
-60
-80
30 36
RESOLUTION BW = 100kHz
VIDEO BW = 100kHz
ATTENUATION = 50dB
RxCLKOUT POWER SPECTRUM
vs. FREQUENCY
(RxCLKIN_ = 33MHz, 4% SPREAD)
MAX9242 toc09
FREQUENCY (MHz)
POWER SPECTRUM (dBm)
33
-40
-30
-20
-10
0
10
20
-50
-70
-60
-80
30 36
RESOLUTION BW = 100kHz
VIDEO BW = 100kHz
ATTENUATION = 50dB